{"id":7699,"date":"2025-10-01T15:27:44","date_gmt":"2025-10-01T13:27:44","guid":{"rendered":"https:\/\/eodhd.com\/financial-apis\/?p=7699"},"modified":"2025-10-02T10:57:09","modified_gmt":"2025-10-02T08:57:09","slug":"id-mapping-api-cusip-isin-figi-lei-cik-%e2%86%94-symbol","status":"publish","type":"post","link":"https:\/\/eodhd.com\/financial-apis\/id-mapping-api-cusip-isin-figi-lei-cik-%e2%86%94-symbol","title":{"rendered":"ID Mapping API: CUSIP \/ ISIN \/ FIGI \/ LEI \/ CIK \u2194 Symbol"},"content":{"rendered":"\n<p>The&nbsp;<strong>ID Mapping API<\/strong>&nbsp;lets you resolve common identifiers (CUSIP, ISIN, OpenFIGI, LEI, CIK) to a tradable&nbsp;<strong>symbol<\/strong> (e.g. AAPL) and vice-versa using flexible filters. It\u2019s ideal for onboarding portfolios, normalizing vendor feeds, or building \u201csearch-and-resolve\u201d experiences.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-api-endpoint\">API Endpoint<\/h2>\n\n\n\n            <div class=\"code__wrapper\">\n                <div class=\"code__content\">\n                    \n<pre class=\"wp-block-code\"><code class=\"\">GET https:\/\/eodhd.com\/api\/id-mapping<\/code><\/pre>\n\n                <\/div>\n                <div class=\"code__btns\">\n                    <button class=\"code__copy\" class=\"copy\" title=\"Copy url\">\n                        <svg class=\"code__copy__icon\" width=\"20\" height=\"20\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                            <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                        <\/svg>\n                        <img decoding=\"async\" class=\"code__copy__approve\" alt=\"\" src=\"\/img\/approve_ico.svg\" loading=\"eager\">\n                    <\/button>\n                <\/div>\n            <\/div>\n        \n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-description\">Description<\/h2>\n\n\n\n<p>Retrieve common identifiers for a symbol or by a specific identifier. Supports CUSIP, ISIN, OpenFigi, LEI, and CIK. At least one filter value is required.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-request-example\">Request Example<\/h2>\n\n\n\n    <div class=\"api_url_box\" data-feed=\"Search API\">\n                    <div class=\"tabs\">\n                                    <div class=\"selected\">URL<\/div>\n                                    <div class=\"\">cURL<\/div>\n                                    <div class=\"\">PHP<\/div>\n                                    <div class=\"\">Python<\/div>\n                                    <div class=\"\">R<\/div>\n                                <div>Chat GPT<\/div>\n            <\/div>\n                <div class=\"tab_content\">\n                                            <div class=\"item selected\">\n                    <div class=\"buttons\">\n                                                    <button\n                                class=\"view\"\n                                title=\"View request in new tab\"\n                                onclick=\"gtag('event', 'ViewApiRequest', {'event_category':'TrialApiData'});\"\n                            >\n                                <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <use xlink:href=\"\/img\/icons\/openLink.svg#openLink\"><\/use>\n                                <\/svg>\n                            <\/button>\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">https:\/\/eodhd.com\/api\/id-mapping?filter[symbol]=<span class='orange bold filter[symbol]'>AAPL.US<\/span>&page[limit]=<span class='orange bold page[limit]'>100<\/span>&page[offset]=<span class='orange bold page[offset]'>0<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">curl --location \"https:\/\/eodhd.com\/api\/id-mapping?filter[symbol]=<span class='orange bold filter[symbol]'>AAPL.US<\/span>&page[limit]=<span class='orange bold page[limit]'>100<\/span>&page[offset]=<span class='orange bold page[offset]'>0<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json\"<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">\n$curl = curl_init();\n\ncurl_setopt_array($curl, array(\n    CURLOPT_URL => 'https:\/\/eodhd.com\/api\/id-mapping?filter[symbol]=<span class='orange bold filter[symbol]'>AAPL.US<\/span>&page[limit]=<span class='orange bold page[limit]'>100<\/span>&page[offset]=<span class='orange bold page[offset]'>0<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json',\n    CURLOPT_RETURNTRANSFER => true,\n    CURLOPT_ENCODING => '',\n    CURLOPT_MAXREDIRS => 10,\n    CURLOPT_TIMEOUT => 0,\n    CURLOPT_FOLLOWLOCATION => true,\n    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,\n    CURLOPT_CUSTOMREQUEST => 'GET',\n));\n\n$data = curl_exec($curl);\ncurl_close($curl);\n\ntry {\n    $data = json_decode($data, true, 512, JSON_THROW_ON_ERROR);\n    var_dump($data);\n} catch (Exception $e) {\n    echo 'Error. '.$e->getMessage();\n}<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">\nimport requests\n\nurl = f'https:\/\/eodhd.com\/api\/id-mapping?filter[symbol]=<span class='orange bold filter[symbol]'>AAPL.US<\/span>&page[limit]=<span class='orange bold page[limit]'>100<\/span>&page[offset]=<span class='orange bold page[offset]'>0<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json'\ndata = requests.get(url).json()\n\nprint(data)<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">\nlibrary(httr)\nlibrary(jsonlite)\n\nurl <- 'https:\/\/eodhd.com\/api\/id-mapping?filter[symbol]=<span class='orange bold filter[symbol]'>AAPL.US<\/span>&page[limit]=<span class='orange bold page[limit]'>100<\/span>&page[offset]=<span class='orange bold page[offset]'>0<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json'\nresponse <- GET(url)\n\nif (http_type(response) == \"application\/json\") {\n    content <- content(response, \"text\", encoding = \"UTF-8\")\n    cat(content)\n} else {\n    cat(\"Error while receiving data\\n\")\n}<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                        <div class=\"item replace-deny\">\n                <div class=\"buttons\">\n                    <a\n                        class=\"view\"\n                        title=\"View request in new tab\"\n                        href=\"\/lp\/eodhd-chatgpt\"\n                        target=\"_blank\"\n                    >\n                        <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                            <use xlink:href=\"\/img\/icons\/openLink.svg#openLink\"><\/use>\n                        <\/svg>\n                    <\/a>\n                <\/div>\n                <div class=\"api_url_text bold\" style=\"word-break: normal;white-space: normal;\">\n                    New to coding? Our ChatGPT assistant can generate code in any language tailored to our API.\n                    Simply describe how you want to use our data, and get a working piece of code.\n                    Don\u2019t forget to replace the API token with your own.<br><br>\n                    <a href=\"\/lp\/eodhd-chatgpt\" target=\"_blank\">Try it now (it's free)!<\/a><br><br>\n                    <a href=\"https:\/\/www.youtube.com\/watch?v=QVWiLukag7o\" rel=\"nofollow\" target=\"_blank\">\n                        How to use it (YouTube)\n                    <\/a>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n\n    \n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-parameters\">Parameters<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Parameter<\/th><th>Required<\/th><th>Type<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>filter[symbol]<\/td><td>Yes (if no other filter provided)<\/td><td>string<\/td><td>Scope results by ticker, for example: AAPL.US<\/td><\/tr><tr><td>filter[ex]<\/td><td>Yes (if no other filter provided)<\/td><td>string<\/td><td>Scope results by exchange code, for example: US<\/td><\/tr><tr><td>filter[isin]<\/td><td>Yes (if no other filter provided)<\/td><td>string<\/td><td>Scope results by ISIN, for example: US0378331005<\/td><\/tr><tr><td>filter[figi]<\/td><td>Yes (if no other filter provided)<\/td><td>string<\/td><td>Scope results by OpenFigi identifier, for example: BBG000B9XRY4<\/td><\/tr><tr><td>filter[lei]<\/td><td>Yes (if no other filter provided)<\/td><td>string<\/td><td>Scope results by LEI, for example: HWUPKR0MPOU8FGXBT394<\/td><\/tr><tr><td>filter[cusip]<\/td><td>Yes (if no other filter provided)<\/td><td>string<\/td><td>Scope results by CUSIP, for example: 037833100<\/td><\/tr><tr><td>filter[cik]<\/td><td>Yes (if no other filter provided)<\/td><td>string<\/td><td>Scope results by CIK, for example: 0000320193<\/td><\/tr><tr><td>page[limit]<\/td><td>No<\/td><td>integer<\/td><td>Limit results per request. Default: 1000, min: 1, max: 1000<\/td><\/tr><tr><td>page[offset]<\/td><td>No<\/td><td>integer<\/td><td>Offset for pagination. Default: 0<\/td><\/tr><tr><td>api_token<\/td><td>Yes<\/td><td>string<\/td><td>Your unique API access token<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Notes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Provide at least one of the following: filter[symbol], filter[ex], filter[isin], filter[figi], filter[lei], filter[cusip], filter[cik].<\/li>\n\n\n\n<li>Filters use deep-object style (filter[&#8230;]) for clarity and future extensibility.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-output-format-json\">Output Format (JSON)<\/h2>\n\n\n\n<p>The response includes meta for pagination, a data array of mapping objects, and links for pagination.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Field<\/th><th>Type<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>meta.total<\/td><td>integer<\/td><td>Total number of results available<\/td><\/tr><tr><td>meta.limit<\/td><td>integer<\/td><td>Max number of results returned in this response<\/td><\/tr><tr><td>meta.offset<\/td><td>integer<\/td><td>Offset applied to this response<\/td><\/tr><tr><td>data<\/td><td>array<\/td><td>List of mapping records<\/td><\/tr><tr><td>data[].symbol<\/td><td>string<\/td><td>Ticker symbol<\/td><\/tr><tr><td>data[].isin<\/td><td>string<\/td><td>ISIN identifier<\/td><\/tr><tr><td>data[].figi<\/td><td>string<\/td><td>OpenFigi identifier<\/td><\/tr><tr><td>data[].lei<\/td><td>string<\/td><td>LEI identifier<\/td><\/tr><tr><td>data[].cusip<\/td><td>string<\/td><td>CUSIP identifier<\/td><\/tr><tr><td>data[].cik<\/td><td>string<\/td><td>CIK identifier<\/td><\/tr><tr><td>links.next<\/td><td>string or null<\/td><td>URL to the next page, if available<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-output-response-example\">Output Response Example<\/h2>\n\n\n\n            <div class=\"code__wrapper\">\n                <div class=\"code__content\">\n                    \n<pre class=\"wp-block-code\"><code lang=\"json\" class=\"language-json\">{\n  \"meta\": {\n    \"total\": 1,\n    \"limit\": 100,\n    \"offset\": 0\n  },\n  \"data\": [\n    {\n      \"symbol\": \"AAPL.US\",\n      \"isin\": \"US0378331005\",\n      \"figi\": \"BBG000B9XRY4\",\n      \"lei\": \"HWUPKR0MPOU8FGXBT394\",\n      \"cusip\": \"037833100\",\n      \"cik\": \"0000320193\"\n    }\n  ],\n  \"links\": {\n    \"next\": null\n  }\n}\n<\/code><\/pre>\n\n                <\/div>\n                <div class=\"code__btns\">\n                    <button class=\"code__copy\" class=\"copy\" title=\"Copy url\">\n                        <svg class=\"code__copy__icon\" width=\"20\" height=\"20\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                            <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                        <\/svg>\n                        <img decoding=\"async\" class=\"code__copy__approve\" alt=\"\" src=\"\/img\/approve_ico.svg\" loading=\"eager\">\n                    <\/button>\n                <\/div>\n            <\/div>\n        \n\n\n<h2 class=\"wp-block-heading\" id=\"h-additional-examples\">Additional Examples<\/h2>\n\n\n\n<p>Lookup by ISIN:<\/p>\n\n\n\n    <div class=\"api_url_box\" data-feed=\"Search API\">\n                    <div class=\"tabs\">\n                                    <div class=\"selected\">URL<\/div>\n                                    <div class=\"\">cURL<\/div>\n                                    <div class=\"\">PHP<\/div>\n                                    <div class=\"\">Python<\/div>\n                                    <div class=\"\">R<\/div>\n                                <div>Chat GPT<\/div>\n            <\/div>\n                <div class=\"tab_content\">\n                                            <div class=\"item selected\">\n                    <div class=\"buttons\">\n                                                    <button\n                                class=\"view\"\n                                title=\"View request in new tab\"\n                                onclick=\"gtag('event', 'ViewApiRequest', {'event_category':'TrialApiData'});\"\n                            >\n                                <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <use xlink:href=\"\/img\/icons\/openLink.svg#openLink\"><\/use>\n                                <\/svg>\n                            <\/button>\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">https:\/\/eodhd.com\/api\/id-mapping?filter[isin]=<span class='orange bold filter[isin]'>US0378331005<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span><\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">curl --location \"https:\/\/eodhd.com\/api\/id-mapping?filter[isin]=<span class='orange bold filter[isin]'>US0378331005<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json\"<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">\n$curl = curl_init();\n\ncurl_setopt_array($curl, array(\n    CURLOPT_URL => 'https:\/\/eodhd.com\/api\/id-mapping?filter[isin]=<span class='orange bold filter[isin]'>US0378331005<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json',\n    CURLOPT_RETURNTRANSFER => true,\n    CURLOPT_ENCODING => '',\n    CURLOPT_MAXREDIRS => 10,\n    CURLOPT_TIMEOUT => 0,\n    CURLOPT_FOLLOWLOCATION => true,\n    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,\n    CURLOPT_CUSTOMREQUEST => 'GET',\n));\n\n$data = curl_exec($curl);\ncurl_close($curl);\n\ntry {\n    $data = json_decode($data, true, 512, JSON_THROW_ON_ERROR);\n    var_dump($data);\n} catch (Exception $e) {\n    echo 'Error. '.$e->getMessage();\n}<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">\nimport requests\n\nurl = f'https:\/\/eodhd.com\/api\/id-mapping?filter[isin]=<span class='orange bold filter[isin]'>US0378331005<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json'\ndata = requests.get(url).json()\n\nprint(data)<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">\nlibrary(httr)\nlibrary(jsonlite)\n\nurl <- 'https:\/\/eodhd.com\/api\/id-mapping?filter[isin]=<span class='orange bold filter[isin]'>US0378331005<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json'\nresponse <- GET(url)\n\nif (http_type(response) == \"application\/json\") {\n    content <- content(response, \"text\", encoding = \"UTF-8\")\n    cat(content)\n} else {\n    cat(\"Error while receiving data\\n\")\n}<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                        <div class=\"item replace-deny\">\n                <div class=\"buttons\">\n                    <a\n                        class=\"view\"\n                        title=\"View request in new tab\"\n                        href=\"\/lp\/eodhd-chatgpt\"\n                        target=\"_blank\"\n                    >\n                        <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                            <use xlink:href=\"\/img\/icons\/openLink.svg#openLink\"><\/use>\n                        <\/svg>\n                    <\/a>\n                <\/div>\n                <div class=\"api_url_text bold\" style=\"word-break: normal;white-space: normal;\">\n                    New to coding? Our ChatGPT assistant can generate code in any language tailored to our API.\n                    Simply describe how you want to use our data, and get a working piece of code.\n                    Don\u2019t forget to replace the API token with your own.<br><br>\n                    <a href=\"\/lp\/eodhd-chatgpt\" target=\"_blank\">Try it now (it's free)!<\/a><br><br>\n                    <a href=\"https:\/\/www.youtube.com\/watch?v=QVWiLukag7o\" rel=\"nofollow\" target=\"_blank\">\n                        How to use it (YouTube)\n                    <\/a>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n\n    \n\n\n\n<p>Looking by exchange code:<\/p>\n\n\n\n    <div class=\"api_url_box\" data-feed=\"Search API\">\n                    <div class=\"tabs\">\n                                    <div class=\"selected\">URL<\/div>\n                                    <div class=\"\">cURL<\/div>\n                                    <div class=\"\">PHP<\/div>\n                                    <div class=\"\">Python<\/div>\n                                    <div class=\"\">R<\/div>\n                                <div>Chat GPT<\/div>\n            <\/div>\n                <div class=\"tab_content\">\n                                            <div class=\"item selected\">\n                    <div class=\"buttons\">\n                                                    <button\n                                class=\"view\"\n                                title=\"View request in new tab\"\n                                onclick=\"gtag('event', 'ViewApiRequest', {'event_category':'TrialApiData'});\"\n                            >\n                                <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <use xlink:href=\"\/img\/icons\/openLink.svg#openLink\"><\/use>\n                                <\/svg>\n                            <\/button>\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">https:\/\/eodhd.com\/api\/id-mapping?filter[ex]=<span class='orange bold filter[ex]'>US<\/span>&page[limit]=<span class='orange bold page[limit]'>50<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span><\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">curl --location \"https:\/\/eodhd.com\/api\/id-mapping?filter[ex]=<span class='orange bold filter[ex]'>US<\/span>&page[limit]=<span class='orange bold page[limit]'>50<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json\"<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">\n$curl = curl_init();\n\ncurl_setopt_array($curl, array(\n    CURLOPT_URL => 'https:\/\/eodhd.com\/api\/id-mapping?filter[ex]=<span class='orange bold filter[ex]'>US<\/span>&page[limit]=<span class='orange bold page[limit]'>50<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json',\n    CURLOPT_RETURNTRANSFER => true,\n    CURLOPT_ENCODING => '',\n    CURLOPT_MAXREDIRS => 10,\n    CURLOPT_TIMEOUT => 0,\n    CURLOPT_FOLLOWLOCATION => true,\n    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,\n    CURLOPT_CUSTOMREQUEST => 'GET',\n));\n\n$data = curl_exec($curl);\ncurl_close($curl);\n\ntry {\n    $data = json_decode($data, true, 512, JSON_THROW_ON_ERROR);\n    var_dump($data);\n} catch (Exception $e) {\n    echo 'Error. '.$e->getMessage();\n}<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">\nimport requests\n\nurl = f'https:\/\/eodhd.com\/api\/id-mapping?filter[ex]=<span class='orange bold filter[ex]'>US<\/span>&page[limit]=<span class='orange bold page[limit]'>50<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json'\ndata = requests.get(url).json()\n\nprint(data)<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                                            <div class=\"item \">\n                    <div class=\"buttons\">\n                                                <button\n                            onclick=\"gtag('event', 'CopyApiUrl', {'event_category':'TrialApiData'});\"\n                            class=\"copy\"\n                            title=\"Copy url\"\n                        >\n                            <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                <use xlink:href=\"\/img\/icons\/copy.svg#copy\"><\/use>\n                            <\/svg>\n                        <\/button>\n                    <\/div>\n                    <pre class=\"api_url_text bold\">\nlibrary(httr)\nlibrary(jsonlite)\n\nurl <- 'https:\/\/eodhd.com\/api\/id-mapping?filter[ex]=<span class='orange bold filter[ex]'>US<\/span>&page[limit]=<span class='orange bold page[limit]'>50<\/span>&api_token=<span class='orange bold api_token'>YOUR_API_TOKEN<\/span>&fmt=json'\nresponse <- GET(url)\n\nif (http_type(response) == \"application\/json\") {\n    content <- content(response, \"text\", encoding = \"UTF-8\")\n    cat(content)\n} else {\n    cat(\"Error while receiving data\\n\")\n}<\/pre>\n                    <div class=\"register_link\">\n                        (<a href=\"\/register\">Sign up<\/a> for free to get an API token)\n                    <\/div>\n                <\/div>\n                        <div class=\"item replace-deny\">\n                <div class=\"buttons\">\n                    <a\n                        class=\"view\"\n                        title=\"View request in new tab\"\n                        href=\"\/lp\/eodhd-chatgpt\"\n                        target=\"_blank\"\n                    >\n                        <svg class=\"tryFreeBtn__svg\" viewBox=\"0 0 20 20\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                            <use xlink:href=\"\/img\/icons\/openLink.svg#openLink\"><\/use>\n                        <\/svg>\n                    <\/a>\n                <\/div>\n                <div class=\"api_url_text bold\" style=\"word-break: normal;white-space: normal;\">\n                    New to coding? Our ChatGPT assistant can generate code in any language tailored to our API.\n                    Simply describe how you want to use our data, and get a working piece of code.\n                    Don\u2019t forget to replace the API token with your own.<br><br>\n                    <a href=\"\/lp\/eodhd-chatgpt\" target=\"_blank\">Try it now (it's free)!<\/a><br><br>\n                    <a href=\"https:\/\/www.youtube.com\/watch?v=QVWiLukag7o\" rel=\"nofollow\" target=\"_blank\">\n                        How to use it (YouTube)\n                    <\/a>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n\n    \n\n\n\n<div style=\"height:42px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Use our <a href=\"https:\/\/eodhd.com\/financial-apis\/search-api-for-stocks-etfs-mutual-funds\">Search API<\/a> to locate assets filtering by asset category, exchange or ticker name.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The&nbsp;ID Mapping API&nbsp;lets you resolve common identifiers (CUSIP, ISIN, OpenFIGI, LEI, CIK) to a tradable&nbsp;symbol (e.g. AAPL) and vice-versa using flexible filters. It\u2019s ideal for onboarding portfolios, normalizing vendor feeds, or building \u201csearch-and-resolve\u201d experiences. API Endpoint Description Retrieve common identifiers for a symbol or by a specific identifier. Supports CUSIP, ISIN, OpenFigi, LEI, and CIK. [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[16],"tags":[],"coding-language":[],"ready-to-go-solution":[],"qualification":[],"financial-apis-category":[],"financial-apis-manuals":[],"class_list":["post-7699","post","type-post","status-publish","format-standard","hentry","category-exchanges-stock-market-financial-api"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.6 (Yoast SEO v26.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ID Mapping API: CUSIP \/ ISIN \/ FIGI \/ LEI \/ CIK \u2194 Symbol | EODHD APIs Documentation<\/title>\n<meta name=\"description\" content=\"ID Mapping API: convert CUSIP \/ ISIN \/ FIGI \/ LEI \/ CIK into Ticker symbol and back\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/eodhd.com\/financial-apis\/id-mapping-api-cusip-isin-figi-lei-cik-\u2194-symbol\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ID Mapping API: CUSIP \/ ISIN \/ FIGI \/ LEI \/ CIK \u2194 Symbol\" \/>\n<meta property=\"og:description\" content=\"ID Mapping API: convert CUSIP \/ ISIN \/ FIGI \/ LEI \/ CIK into Ticker symbol and back\" \/>\n<meta property=\"og:url\" content=\"https:\/\/eodhd.com\/financial-apis\/id-mapping-api-cusip-isin-figi-lei-cik-\u2194-symbol\" \/>\n<meta property=\"og:site_name\" content=\"Stock Price Data, Financial and Stock Market API\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/eodhistoricaldata\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-01T13:27:44+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-02T08:57:09+00:00\" \/>\n<meta name=\"author\" content=\"a.pletnev\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@EOD_data\" \/>\n<meta name=\"twitter:site\" content=\"@EOD_data\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"a.pletnev\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/eodhd.com\/financial-apis\/id-mapping-api-cusip-isin-figi-lei-cik-%e2%86%94-symbol#article\",\"isPartOf\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis\/id-mapping-api-cusip-isin-figi-lei-cik-%e2%86%94-symbol\"},\"author\":{\"name\":\"a.pletnev\",\"@id\":\"https:\/\/eodhd.com\/financial-apis\/#\/schema\/person\/ed3193541c25b73e823a83bdcdb09b5d\"},\"headline\":\"ID Mapping API: CUSIP \/ ISIN \/ FIGI \/ LEI \/ CIK \u2194 Symbol\",\"datePublished\":\"2025-10-01T13:27:44+00:00\",\"dateModified\":\"2025-10-02T08:57:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis\/id-mapping-api-cusip-isin-figi-lei-cik-%e2%86%94-symbol\"},\"wordCount\":466,\"publisher\":{\"@id\":\"https:\/\/eodhd.com\/financial-apis\/#organization\"},\"articleSection\":[\"3. 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