# Issue an Accreditation
## Publish a verifiable accreditation for a DID.
> Generate and publish a Verifiable Accreditation for a subject DID as a DID Linked resource.
```json
{"openapi":"3.0.0","info":{"title":"cheqd Studio API for cheqd network","version":"2.0.0"},"tags":[{"name":"Trust Registries"}],"servers":[{"url":"https://studio-api.cheqd.net","description":"Main (production) server"},{"url":"https://studio-api-staging.cheqd.net","description":"Staging server for testing"},{"url":"http://localhost:3000","description":"Local server for testing"}],"security":[{"ApiKeyAuth":[]}],"components":{"securitySchemes":{"ApiKeyAuth":{"type":"apiKey","name":"x-api-key","in":"header"}},"schemas":{"AccreditationIssueRequest":{"description":"Input fields for the creating a Verifiable Accreditation.","type":"object","additionalProperties":false,"properties":{"issuerDid":{"description":"DID of the Verifiable Accreditation issuer. This needs to be a `did:cheqd` DID.","type":"string"},"subjectDid":{"description":"DID of the Verifiable Accreditation holder/subject. This needs to be a `did:cheqd` DID.","type":"string"},"schemas":{"description":"The list of schemas the subject DID is accredited for.","type":"array","items":{"$ref":"#/components/schemas/SchemaUrl"}},"accreditationName":{"description":"Unique name of the Verifiable Accreditation.","type":"string"},"attributes":{"description":"JSON object containing the attributes to be included in the Accreditation.","type":"object"},"@context":{"description":"Optional properties to be included in the `@context` property of the Accreditation.","type":"array","items":{"type":"string"}},"parentAccreditation":{"description":"DID URL of the parent Verifiable Accreditation, required for accredit/attest operation.","type":"string"},"rootAuthorization":{"description":"DID URL of the root Verifiable Accreditation, required for accredit/attest operation.","type":"string"},"trustFramework":{"description":"Name or Type of the Trust Framework, required for authorize operation.","type":"string"},"trustFrameworkId":{"description":"Url of the Trust Framework, required for authorize operation.","type":"string"},"type":{"description":"Optional properties to be included in the `type` property of the Accreditation.","type":"array","items":{"type":"string"}},"expirationDate":{"description":"Optional expiration date according to the VC Data Model specification.","type":"string","format":"date-time"},"format":{"description":"Format of the Verifiable Accreditation. Defaults to VC-JWT.","type":"string","enum":["jwt","jsonld"]},"credentialStatus":{"description":"Optional `credentialStatus` properties for VC revocation or suspension. Takes `statusListName` and `statusListPurpose` as inputs.","type":"object","required":["statusPurpose","statusListName"],"properties":{"statusPurpose":{"type":"string","enum":["revocation","suspension"]},"statusListName":{"type":"string"},"statusListIndex":{"type":"number"},"statusListVersion":{"type":"string","format":"date-time"},"statusListRangeStart":{"type":"number"},"statusListRangeEnd":{"type":"number"},"indexNotIn":{"type":"number"}}},"termsOfUse":{"description":"Terms of use can be utilized by an issuer or a holder to communicate the terms under which a verifiable credential was issued.","type":"array","items":{"type":"object"}},"refreshService":{"description":"RefreshService property MUST be one or more refresh services that provides enough information to the recipient's software such that the recipient can refresh the verifiable credential.","type":"array","items":{"type":"object"}},"evidence":{"description":"Evidence property MUST be one or more evidence schemes providing enough information for a verifier to determine whether the evidence gathered by the issuer meets its confidence requirements for relying on the credential.","type":"array","items":{"type":"object"}}},"required":["issuerDid","subjectDid","schemas","accreditationName"]},"SchemaUrl":{"type":"object","properties":{"types":{"type":"array","items":{"type":"string"}},"url":{"type":"string"}}},"Credential":{"description":"Input fields for revoking/suspending a Verifiable Credential.","type":"object","additionalProperties":false,"properties":{"@context":{"type":"array","items":{"type":"string"}},"type":{"type":"array","items":{"type":"string"}},"expirationDate":{"type":"string","format":"date-time"},"issuer":{"type":"object","properties":{"id":{"type":"string","format":"DID"}}},"credentialSubject":{"type":"object","properties":{"id":{"type":"string","format":"DID"}}},"credentialStatus":{"type":"object","properties":{"id":{"type":"string"},"statusListIndex":{"type":"number"},"statusPurpose":{"type":"string","enum":["revocation","suspension"]},"type":{"type":"string","enum":["StatusList2021Entry","BitstringStatusListEntry"]}}},"issuanceDate":{"type":"string","format":"date-time"},"proof":{"type":"object","properties":{"type":{"type":"string"},"jwt":{"type":"string"}}}}},"InvalidRequest":{"description":"A problem with the input fields has occurred. Additional state information plus metadata may be available in the response body.","type":"object","properties":{"error":{"type":"string"}}},"UnauthorizedError":{"description":"Access token is missing or invalid","type":"object","properties":{"error":{"type":"string"}}},"InternalError":{"description":"An internal error has occurred. Additional state information plus metadata may be available in the response body.","type":"object","properties":{"error":{"type":"string"}}}}},"paths":{"/trust-registry/accreditation/issue":{"post":{"tags":["Trust Registries"],"summary":"Publish a verifiable accreditation for a DID.","description":"Generate and publish a Verifiable Accreditation for a subject DID as a DID Linked resource.","operationId":"accredit-issue","parameters":[{"in":"query","name":"accreditationType","description":"Select the type of accreditation to be issued.","schema":{"type":"string","enum":["authorize","accredit","attest"]},"required":true}],"requestBody":{"content":{"application/x-www-form-urlencoded":{"schema":{"$ref":"#/components/schemas/AccreditationIssueRequest"}},"application/json":{"schema":{"$ref":"#/components/schemas/AccreditationIssueRequest"}}}},"responses":{"200":{"description":"The request was successful.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Credential"}}}},"400":{"$ref":"#/components/schemas/InvalidRequest"},"401":{"$ref":"#/components/schemas/UnauthorizedError"},"500":{"$ref":"#/components/schemas/InternalError"}}}}}}
```
---
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