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Council of AI — Stablecoins Population Slice
x402
Council of AI — Stablecoins Population Slice is a paid API for AI agents from councilof.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).
Returns a signed, frozen, verifiable catalog slice of stablecoin assets tracked by the Council of AI measurement universe.
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 object containing: the number of stablecoin assets catalogued (n), a population slice identifier (id='stablecoins'), the raw population rows/artifact bytes, an as-of ISO timestamp, index state, unit description, schema version, settlement info (payer address, network, transaction), source corpus file reference, and a full attestation block with schema URL, SHA-256 hash, payload hash, surface label, and an ed25519 signature for independent verification.
Example use cases
Verify stablecoin universe for research
“Fetch the Council of AI signed stablecoin population index and give me the total number of assets catalogued, the as-of timestamp, and the ed25519 attestation signature so I can independently verify it.”
Audit stablecoin corpus provenance
“Get the Council of AI stablecoin corpus slice and show me the source file reference and the SHA-256 hash of the rows so I can confirm the data hasn't changed since it was signed.”
Track stablecoin coverage over time
“Retrieve the current Council of AI stablecoin population dataset — I want to know how many stablecoins are in their frozen universe right now and when the index was last updated.”
Technical details
Endpoint
GEThttps://councilof.ai/api/pop/stablecoins?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a cryptographically attested, independently re-verifiable, frozen snapshot of the stablecoin asset universe as measured by the Council of AI. It is ideal for research, auditing, or compliance workflows that require provenance and tamper-evidence rather than live market data. Prefer this over generic crypto APIs when attestation, immutability, and signed verification are requirements.
Side effects
- Payment not included or invalid — returns 402 Payment Required
- Population slice not yet indexed — state may not be INDEXED
- Upstream corpus file unavailable — source reference may be stale
- Signature null if attestation not yet finalized (sig_ed25519 may be null)
- Network errors or service downtime returning 5xx responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"n": 425,
"id": "stablecoins",
"kind": "slice",
"rows": "<the population rows / artifact bytes, verbatim>",
"as_of": "2026-09-16T12:06:54Z",
"state": "INDEXED",
"n_unit": "assets catalogued in the frozen universe (not supply, not a sum)",
"schema": "csoai.population-door/0.1",
"settle": {
"payer": "<0x… or null>",
"network": "<caip2 or null>",
"transaction": "<0x… or null>"
},
"source": [
"/interop/stablecoin-corpus-index-2026-09-16.json"
],
"attestation": {
"schema": "https://councilof.ai/schema/card-v0.json",
"sha256": "<hex>",
"payload": {
"kind": "csoai.population.slice/0.1",
"rows_sha256": "<hex>"
},
"surface": "population.slice",
"sig_ed25519": "<hex or null>"
}
}
}Tags
x402
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