---
title: "Get CTDL JSON-LD for a credential"
method: GET
path: "/credentials/{publicId}/ctdl"
tags: ["Verification"]
---

# Get CTDL JSON-LD for a credential

`GET /credentials/{publicId}/ctdl`

## Request

- Base URL: `https://app.arkova.ai/api/v1`
- URL: `https://app.arkova.ai/api/v1/credentials/{publicId}/ctdl`
- Auth: one of:
  - HTTP bearer
  - API key in header `X-API-Key`
  - none

Returns the public Credential Transparency Description Language JSON-LD projection for a publishable Arkova credential. Records that are not credentials (publications, patents, regulatory and SEC filings, financial and legal documents, charity and business-entity registry records, contracts, resumes, identity documents) have no CTDL projection and return 404 with `reason: "not_a_credential"`.

## Path parameters

- `publicId` string, required

## Response `200`

CTDL JSON-LD document for an active credential

## Other responses

- `400`: Invalid request
- `404`: Resource not found
- `410`: CTDL JSON-LD document for a revoked credential
- `429`: Rate limit exceeded
- `503`: API not enabled (feature flag off)

---

[API](https://skmtc.dev/arkova/apis/arkova-verification-api.md) · [All operations](https://skmtc.dev/arkova/apis/arkova-verification-api/llms.txt) · [OpenAPI document](https://skmtc.dev/arkova/apis/arkova-verification-api/revisions/a14858d1efd4?raw)