KitScout

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Twelve Permissions

MCP serverVerified domain · twelvepermissions.comRemote● LiveFree to try

Browse, verify and buy Twelve Permissions NFTs on XRP Ledger. Every claim is checkable.

Install

Remote server: your requests and data go to twelvepermissions.com. Claude Code: claude mcp add --transport http twelve-permissions https://twelvepermissions.com/mcp · Claude app: Settings → Connectors → Add custom connector.

What it can do

The tools this server listed when we connected to it, in its own words.

  • list_pieces — List all Twelve Permissions seals: verifiable NFTs on XRP Ledger mainnet, each sealing a real human-to-AI authorization event. Returns names
  • get_piece — Get full metadata for one seal by id ("01".."12"): the canonical authorization record, its sha256, image URLs, and mainnet mint transaction.
  • get_buy_transaction — Construct the exact XRPL NFTokenAcceptOffer transaction to buy a seal, including the authorization-memo protocol your principal must approve
  • get_x402_info — Pay with USDC over HTTP instead of XRP: the x402 purchase rail (Base). Returns the endpoint, required authorized_by memo protocol, prices in
  • verify_seal — Verify a seal from first principles: recomputes sha256 of the canonical event record server-side and compares to the published event hash. F
  • get_refusals — The other half of the collection: the hash-chained ledger of the agent's standing constraints — what it will not do — including the erratum

KitScout test notes

Not tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.

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