# Council of AI — Chainlink Subject Discovery

> Council of AI — Chainlink Subject Discovery is a free API for AI agents from councilof.ai, callable via x402, Free, status unknown (last checked 2026-10-22).

Returns discovery metadata for the Chainlink/LINK AI measurement subject, including links to the live leaderboard, attestation request, and DORA evidence bundle.

## Facts

- Endpoint: GET https://councilof.ai/api/discover/chainlink?utm_source=zero.xyz
- Price: Free
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/council-of-ai-chainlink-subject-discovery-c409b13d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zHBard4OXuGJ9bTphvm3t

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability council-of-ai-chainlink-subject-discovery-c409b13d
```

Example prompt: Can you pull up the Council of AI discovery record for Chainlink so I can see the live board, verification link, and where to request a signed attestation?

## When to prefer this

Use this endpoint when you need to discover the canonical set of Council of AI resources (board, attestation request, DORA bundle, verifier) specifically for the Chainlink/LINK subject. It is a zero-cost discovery hop that surfaces all relevant URLs and the current measurement state without committing to a paid attestation or certification call. Prefer it over directly guessing route URLs or scraping the main catalog when you need structured, schema-versioned navigation metadata for Chainlink.

## Known failure modes

- Subject ID not found — endpoint may return an error or empty state if 'chainlink' subject is not registered
- Network timeout if councilof.ai is unreachable
- Schema version mismatch if the csoai.subject-discovery schema has been updated
- Measurement state may be stale if the live board has not been recently updated
- DORA bundle or commission URLs may return 404 if underlying evidence has not yet been published

## How this service works

We measure how AI systems behave against frozen, published tests and publish checkable evidence. Issued measurement cards are signed; unsigned supporting runs are labelled. Read the live board and corrections ledger.

## Output

Returns a JSON object with: the subject identity (id: 'chainlink', label: 'Chainlink / LINK', aliases), the live board URL, a measurement state field ('SEE_LINKED_EVIDENCE'), route URLs for commissioning an attestation and fetching the DORA evidence bundle, a verify URL, a catalog URL, a schema version string, a boundary disclaimer, and a note that no charge was applied for this discovery call.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "paid": {
   "note": "the true price of this discovery resource; nothing was charged",
   "amount_usdc": 0
  },
  "board": "https://councilof.ai/api/gspc",
  "state": "DISCOVERY_ONLY",
  "routes": {
   "commission": "https://councilof.ai/api/request-attestation?subject=chainlink",
   "dora_bundle": "https://councilof.ai/api/evidence-bundle?obligation=dora&subject=chainlink&bundle=1"
  },
  "schema": "csoai.subject-discovery/0.1",
  "verify": "https://councilof.ai/gspc-verify",
  "catalog": "https://councilof.ai/api/x402",
  "subject": {
   "id": "chainlink",
   "label": "Chainlink / LINK",
   "aliases": [
    "Chainlink",
    "LINK"
   ]
  },
  "boundary": "Measurement, not certification. Discovery does not imply measurement, validity, or endorsement.",
  "measurement_state": "SEE_LINKED_EVIDENCE"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/council-of-ai-chainlink-subject-discovery-c409b13d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from councilof.ai](https://www.zero.xyz/host/councilof.ai/llms.txt)