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Council of AI — USDC Asset Measurement Card Retrieval
x402
Council of AI — USDC Asset Measurement Card Retrieval is a paid API for AI agents from councilof.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Returns signed measurement cards and parity state for the USDC asset as assessed by the Council of AI independent evaluation system.
Price / call$0.01
Success—
StatusUnknown
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 pack containing: the asset identifier (USDC), an array of signed measurement cards (each with schema URL, SHA256 hash, payload describing kind and state, surface label, and an ed25519 signature or null if unsigned), aggregate counts by state, the pack-level SHA256 hash, and a list of any unmeasured pairs. All cards reference the csoai.wrapper-asset-pack/0.1 schema.
Example use cases
Verify USDC escrow parity status
“Check the Council of AI board for USDC and tell me what the current parity state is and whether the measurement cards are properly signed.”
Audit AI behavior evidence for USDC
“Fetch the cryptographically signed evaluation evidence for USDC from Council of AI — I need the card SHA256 hashes and signature status so I can independently verify the results.”
Monitor USDC measurement completeness
“Look up the USDC asset on Council of AI and let me know if there are any unmeasured pairs and what the count of ESCROW_PARITY_READ measurements currently stands at.”
Technical details
Endpoint
GEThttps://councilof.ai/api/wrapper/asset/usdc?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need cryptographically verifiable, signed measurement evidence for the USDC asset specifically from an independent third-party AI evaluation body. Prefer this over generic AI benchmarks when you need checkable, tamper-evident audit cards with ed25519 signatures and SHA256 hashes that can be independently re-verified against the Council of AI published test corpus and corrections ledger.
Side effects
- Payment not made or x402 payment header missing — returns 402 Payment Required
- Asset not found or no cards issued yet — may return empty cards array
- Signature null on supporting runs that have not been formally signed — cards labelled as unsigned
- Network or server error — standard HTTP 5xx response
- Malformed request method (only GET, HEAD, DELETE accepted) — returns 405 Method Not Allowed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"asset": "USDC",
"cards": [
{
"schema": "https://councilof.ai/schema/card-v0.json",
"sha256": "<hex>",
"payload": {
"kind": "csoai.wrapper.parity/0.1",
"state": "ESCROW_PARITY_READ"
},
"surface": "public.notice",
"sig_ed25519": "<hex or null>"
}
],
"counts": {
"ESCROW_PARITY_READ": 1
},
"schema": "csoai.wrapper-asset-pack/0.1",
"pack_sha256": "<hex>",
"unmeasured_pairs": []
}
}Tags
x402
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