--- title: "Get a field of research" method: GET path: "/v1/people/fields/{code}" tags: ["People", "tier:standard"] --- # Get a field of research `GET /v1/people/fields/{code}` ## Request - Base URL: `https://api.particle.pro` - URL: `https://api.particle.pro/v1/people/fields/{code}` - Auth: one of: - API key in header `X-API-Key` - HTTP bearer Returns one ANZSRC 2020 field of research with its parent and children. The {code} parameter accepts the code, slug, or title. ## Path parameters - `code` string, required: The field of research's ANZSRC 2020 code (320101), slug (cardiology-incl-cardiovascular-diseases), or title. A title a group shares with one of its own fields resolves to the group. ## Response `200` OK - ExpertiseCodeDetail - `children` ExpertiseCode[], nullable: Every code one level down; omitted for the most specific level. Below a SOC major group are its minor groups, below a minor group its broad groups, and below a broad group or an alias its detailed occupations. - `code` string, required: The standard's own notation, such as 29-1212 (SOC), 2212 (ISCO), or 320101 (FoR). - `group` 'minor' | 'broad' | 'alias': Set for a code that stands for several detailed SOC 2018 occupations: a SOC minor group (such as 29-1000 Healthcare Diagnosing or Treating Practitioners), a broad group (such as 29-1210 Physicians), or an alias, an everyday name such as doctors (physicians and surgeons). Every occupation filter accepts one and matches a speaker listed under any of its occupations. - `level` integer: Depth in the standard's official hierarchy: SOC major group 1 and detailed occupation 2; FoR division 1, group 2, field 3; ISCO-08 unit group 4 and minor group 3. ISCO-08 codes are the groups SOC maps to, listed flat without the standard's upper levels. Omitted for a SOC group or alias (see group). - `parent_code` string: The standard's official parent code; omitted at the top level and for every ISCO-08 code, since ISCO-08 is listed without its upper levels. A SOC broad group's parent is its minor group and a minor group's its major group, but a detailed SOC occupation's official parent is its major group (29-1211 has parent_code 29-0000), so it can differ from parent, which is the browse parent one level up (29-1210). - `slug` string, required: The title as a URL segment, such as cardiologists. - `standard` 'soc_2018' | 'isco_08' | 'anzsrc_for_2020', required: The standard the code belongs to: soc_2018 (US Standard Occupational Classification), isco_08 (the ILO's International Standard Classification of Occupations), or anzsrc_for_2020 (ANZSRC Fields of Research). - `title` string, required: The standard's official title, such as Cardiologists. - `code` string, required: The standard's own notation, such as 29-1212 (SOC), 2212 (ISCO), or 320101 (FoR). - `equivalents` ExpertiseCode[], nullable: The same occupation in the other occupation standard, per the official BLS SOC 2018 to ISCO-08 crosswalk: the ISCO groups a SOC occupation maps to, or the SOC occupations that map to an ISCO group. Omitted for fields of research. - `code` string, required: The standard's own notation, such as 29-1212 (SOC), 2212 (ISCO), or 320101 (FoR). - `group` 'minor' | 'broad' | 'alias': Set for a code that stands for several detailed SOC 2018 occupations: a SOC minor group (such as 29-1000 Healthcare Diagnosing or Treating Practitioners), a broad group (such as 29-1210 Physicians), or an alias, an everyday name such as doctors (physicians and surgeons). Every occupation filter accepts one and matches a speaker listed under any of its occupations. - `level` integer: Depth in the standard's official hierarchy: SOC major group 1 and detailed occupation 2; FoR division 1, group 2, field 3; ISCO-08 unit group 4 and minor group 3. ISCO-08 codes are the groups SOC maps to, listed flat without the standard's upper levels. Omitted for a SOC group or alias (see group). - `parent_code` string: The standard's official parent code; omitted at the top level and for every ISCO-08 code, since ISCO-08 is listed without its upper levels. A SOC broad group's parent is its minor group and a minor group's its major group, but a detailed SOC occupation's official parent is its major group (29-1211 has parent_code 29-0000), so it can differ from parent, which is the browse parent one level up (29-1210). - `slug` string, required: The title as a URL segment, such as cardiologists. - `standard` 'soc_2018' | 'isco_08' | 'anzsrc_for_2020', required: The standard the code belongs to: soc_2018 (US Standard Occupational Classification), isco_08 (the ILO's International Standard Classification of Occupations), or anzsrc_for_2020 (ANZSRC Fields of Research). - `title` string, required: The standard's official title, such as Cardiologists. - `group` 'minor' | 'broad' | 'alias': Set for a code that stands for several detailed SOC 2018 occupations: a SOC minor group (such as 29-1000 Healthcare Diagnosing or Treating Practitioners), a broad group (such as 29-1210 Physicians), or an alias, an everyday name such as doctors (physicians and surgeons). Every occupation filter accepts one and matches a speaker listed under any of its occupations. - `level` integer: Depth in the standard's official hierarchy: SOC major group 1 and detailed occupation 2; FoR division 1, group 2, field 3; ISCO-08 unit group 4 and minor group 3. ISCO-08 codes are the groups SOC maps to, listed flat without the standard's upper levels. Omitted for a SOC group or alias (see group). - `parent` ExpertiseCode - `code` string, required: The standard's own notation, such as 29-1212 (SOC), 2212 (ISCO), or 320101 (FoR). - `group` 'minor' | 'broad' | 'alias': Set for a code that stands for several detailed SOC 2018 occupations: a SOC minor group (such as 29-1000 Healthcare Diagnosing or Treating Practitioners), a broad group (such as 29-1210 Physicians), or an alias, an everyday name such as doctors (physicians and surgeons). Every occupation filter accepts one and matches a speaker listed under any of its occupations. - `level` integer: Depth in the standard's official hierarchy: SOC major group 1 and detailed occupation 2; FoR division 1, group 2, field 3; ISCO-08 unit group 4 and minor group 3. ISCO-08 codes are the groups SOC maps to, listed flat without the standard's upper levels. Omitted for a SOC group or alias (see group). - `parent_code` string: The standard's official parent code; omitted at the top level and for every ISCO-08 code, since ISCO-08 is listed without its upper levels. A SOC broad group's parent is its minor group and a minor group's its major group, but a detailed SOC occupation's official parent is its major group (29-1211 has parent_code 29-0000), so it can differ from parent, which is the browse parent one level up (29-1210). - `slug` string, required: The title as a URL segment, such as cardiologists. - `standard` 'soc_2018' | 'isco_08' | 'anzsrc_for_2020', required: The standard the code belongs to: soc_2018 (US Standard Occupational Classification), isco_08 (the ILO's International Standard Classification of Occupations), or anzsrc_for_2020 (ANZSRC Fields of Research). - `title` string, required: The standard's official title, such as Cardiologists. - `parent_code` string: The standard's official parent code; omitted at the top level and for every ISCO-08 code, since ISCO-08 is listed without its upper levels. A SOC broad group's parent is its minor group and a minor group's its major group, but a detailed SOC occupation's official parent is its major group (29-1211 has parent_code 29-0000), so it can differ from parent, which is the browse parent one level up (29-1210). - `slug` string, required: The title as a URL segment, such as cardiologists. - `standard` 'soc_2018' | 'isco_08' | 'anzsrc_for_2020', required: The standard the code belongs to: soc_2018 (US Standard Occupational Classification), isco_08 (the ILO's International Standard Classification of Occupations), or anzsrc_for_2020 (ANZSRC Fields of Research). - `title` string, required: The standard's official title, such as Cardiologists. ## Other responses - `402`: Payment Required. Read error_code. payment_required is the x402 path: either a keyless request being challenged — pay $0.01 in USDC per request (requirements in the PAYMENT-REQUIRED header) or send a pp_ API key — or a supplied payment that failed settlement (details in the PAYMENT-RESPONSE header; retry the same signature before signing a new one). See https://docs.particle.pro/x402. Any other code means the credential was accepted but does not cover this request (a plan or session gate such as premium_required or paid_plan_confirmation_required); its resolve says how to obtain access, and no payment header is sent. - `default`: Error --- [API](https://skmtc.dev/particle/apis/particle-api.md) · [All operations](https://skmtc.dev/particle/apis/particle-api/llms.txt) · [OpenAPI document](https://skmtc.dev/particle/apis/particle-api/revisions/416ba82ab9d7?raw)