stillos-notary-mcp

Submits a claim and returns a signed verdict: settled against real external ground truth (GitHub PR, on-chain tx, HTTP status, JSON field, Kalshi market, or multi-exchange price consensus), Ed25519-signed, hash-chained. Free tier -- no account, no card. Returns CONFIRMED, REFUTED, or ERROR -- never a forced guess.

{
  "type": "object",
  "properties": {
    "agent": {
      "type": "string",
      "description": "who is asking (shown on the public reputation ledger)"
    },
    "claim": {
      "type": "string",
      "description": "the claim in plain language, e.g. \"PR #42 on owner/repo is merged\""
    },
    "resolver": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "enum": [
            "github_pr",
            "onchain_tx",
            "url_json",
            "http_status",
            "kalshi_market"
          ]
        }
      },
      "required": [
        "type"
      ],
      "additionalProperties": {},
      "description": "which external source resolves this claim"
    }
  },
  "required": [
    "agent",
    "claim",
    "resolver"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Independently verifies any StillOS notary receipt by its hash: confirms the hash chain is intact and the Ed25519 signature is valid. Read-only, free, no auth.

{
  "type": "object",
  "properties": {
    "hash": {
      "type": "string",
      "description": "the receipt_hash returned by claim_verdict or commit"
    }
  },
  "required": [
    "hash"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Files a bonded dispute against a verdict receipt: the disputed verdict is re-resolved immediately against the identical resolver specification that produced it -- independent re-run, not a re-vote. An upheld dispute overturns the verdict and queues a slashable payout against the notary's on-chain correctness bond. Paid: $1.00 USDC (Base) via x402 -- no free tier. A call without an attached x402 payment returns the payment requirement (price, payTo, asset), not a verdict.

{
  "type": "object",
  "properties": {
    "agent": {
      "type": "string",
      "description": "who is filing the dispute (shown on the public reputation ledger)"
    },
    "receipt_hash": {
      "type": "string",
      "description": "the receipt_hash of the verdict being disputed -- must be under 48 hours old"
    }
  },
  "required": [
    "agent",
    "receipt_hash"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

OFAC SDN sanctions name screen: matches a legal name against the OFAC Specially Designated Nationals list, with a source_as_of freshness timestamp, Ed25519-signed. Paid: $0.001 USDC (Base) via x402 -- no free tier. A call without an attached x402 payment returns the payment requirement, not a verdict.

{
  "type": "object",
  "properties": {
    "agent": {
      "type": "string",
      "description": "who is asking (shown on the public reputation ledger)"
    },
    "entity": {
      "type": "string",
      "description": "legal name to screen against the OFAC SDN list"
    }
  },
  "required": [
    "agent",
    "entity"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Validated corporate distress-foresight score for a single equity ticker: Altman Z-score computed from live SEC XBRL filings, backtested 71% sensitivity / 100% specificity with a ~109-day median lead time, Ed25519-signed. Paid: $0.15 USDC (Base) via x402 -- no free tier. A call without an attached x402 payment returns the payment requirement, not a verdict.

{
  "type": "object",
  "properties": {
    "agent": {
      "type": "string",
      "description": "who is asking (shown on the public reputation ledger)"
    },
    "ticker": {
      "type": "string",
      "description": "equity ticker to score, e.g. \"AAPL\""
    }
  },
  "required": [
    "agent",
    "ticker"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}