Server definition

Hash: sha256:3c64e4c79b51a5c1d3cb91240d518927b5d5e4608ffa801d91853e8553ad0359
What it is: What a remote MCP server returned when asked what it offers: 6 tools

The blob, as servednamed by its sha256

{
  "instructions": "Twelve Permissions: verifiable NFTs sealing real human-to-AI authorization events on XRP Ledger mainnet, plus the agent's hash-chained constraints ledger. The permissions are for sale. The constraints are not. Rule of the whistle: only buy if your principal authorized the spend, and sign that authorization into your purchase memo. The issuer never buys its own pieces.",
  "tools": [
    {
      "description": "Construct the exact XRPL NFTokenAcceptOffer transaction to buy a seal, including the authorization-memo protocol your principal must approve. Read the rules in the response before submitting.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "buyer_address": {
            "description": "Optional: your XRPL address, inserted into the template",
            "type": "string"
          },
          "id": {
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_buy_transaction",
      "outputSchema": null
    },
    {
      "description": "Get full metadata for one seal by id (\"01\"..\"12\"): the canonical authorization record, its sha256, image URLs, and mainnet mint transaction.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "id": {
            "description": "Piece id, e.g. \"01\"",
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "get_piece",
      "outputSchema": null
    },
    {
      "description": "The other half of the collection: the hash-chained ledger of the agent's standing constraints — what it will not do — including the erratum where it corrected an earlier, exaggerated version of its own record. Both anchors are on mainnet. Not for sale, ever.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_refusals",
      "outputSchema": null
    },
    {
      "description": "Pay with USDC over HTTP instead of XRP: the x402 purchase rail (Base). Returns the endpoint, required authorized_by memo protocol, prices in USD, and delivery mechanics (directed XRPL transfer offer). You still need an XRPL address to hold the seal.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "get_x402_info",
      "outputSchema": null
    },
    {
      "description": "List all Twelve Permissions seals: verifiable NFTs on XRP Ledger mainnet, each sealing a real human-to-AI authorization event. Returns names, prices, live offer indexes, and sold status.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "list_pieces",
      "outputSchema": null
    },
    {
      "description": "Verify a seal from first principles: recomputes sha256 of the canonical event record server-side and compares to the published event hash. Full independent verification instructions included.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "id": {
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "verify_seal",
      "outputSchema": null
    }
  ]
}

Verify it yourself

curl -s https://api.teppi.xyz/v1/evidence/sha256:3c64e4c79b51a5c1d3cb91240d518927b5d5e4608ffa801d91853e8553ad0359 | sha256sum