Server definition

Hash: sha256:7e56b182c811b5ed4cc8b8ab8ab736d9e7bd413b623a4bf8e0dac6c893587ef1
What it is: What a remote MCP server returned when asked what it offers: 3 tools

The blob, as servednamed by its sha256

{
  "instructions": null,
  "tools": [
    {
      "description": "Returns the current PCRZERO signing keyset — key ids, public halves, and each key's status. Public and unauthenticated: no API key, no cost, no account. This is the same document an outside party fetches to check a PCRZERO receipt without trusting us, and fetching it is how you stop taking our word for anything.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "get_keyset",
      "outputSchema": null
    },
    {
      "description": "Adjudicates an attestation document against a policy and returns the verdict together with a signed receipt pair — the durable, independently checkable proof that this decision was made, by these keys, over this document. **Metered: every call bills one `receipt_verifications` unit against the API key configured for this server, and a `fail` verdict bills exactly like a `pass`. You are paying for the adjudication, not for the answer you wanted.** This is the only tool here that spends. If you already hold a receipt and want to know whether it is genuine, that is `verify_receipt`, which is free and needs no key.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "document": {
            "description": "Base64 attestation document (single-document form).",
            "type": "string"
          },
          "documents": {
            "description": "Base64 attestation documents (batch form).",
            "items": {
              "type": "string"
            },
            "type": "array"
          },
          "nonce": {
            "type": "string"
          },
          "policy": {
            "additionalProperties": {},
            "description": "Inline policy object (API wire shape).",
            "type": "object"
          },
          "policy_id": {
            "description": "Stored policy id (pol_…).",
            "type": "string"
          },
          "receipt": {
            "description": "Request a signed receipt (default true).",
            "type": "boolean"
          }
        },
        "type": "object"
      },
      "name": "issue_receipt",
      "outputSchema": null
    },
    {
      "description": "Checks a PCRZERO receipt pair against the signing keyset: whether the signature holds, and whether the receipt says what it appears to say. **Free, with no API key and no account, and it stays free.** Offline by default — supply `keyset` and this call touches the network not at all; omit it and the server fetches the public keyset from api.pcrzero.com once. The result field `keyset_source` tells you which of the two happened, every time. This tool issues nothing, bills nothing, and cannot spend. It is the half of PCRZERO you never pay for.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "conformance": {
            "enum": [
              "full",
              "classical-only"
            ],
            "type": "string"
          },
          "keyset": {
            "additionalProperties": false,
            "description": "Optional keyset in GET /v1/keys shape. When supplied, no network is used.",
            "properties": {
              "keys": {
                "items": {
                  "additionalProperties": {},
                  "type": "object"
                },
                "type": "array"
              }
            },
            "required": [
              "keys"
            ],
            "type": "object"
          },
          "receipt": {
            "description": "Base64url receipt envelope from issue_receipt / the API.",
            "type": "string"
          }
        },
        "required": [
          "receipt"
        ],
        "type": "object"
      },
      "name": "verify_receipt",
      "outputSchema": null
    }
  ]
}

Verify it yourself

curl -s https://api.teppi.xyz/v1/evidence/sha256:7e56b182c811b5ed4cc8b8ab8ab736d9e7bd413b623a4bf8e0dac6c893587ef1 | sha256sum