{"name":"x402fb-mcp","version":"1.2.0","description":"Fractal x402 buyer MCP — search marketplace, payAndFetch with spend caps, local BIP-322 sign/verify/derive.","transport":"stdio","tools":["x402_search","x402_list","x402_get","x402_call","x402_price","x402_sign_bip322","x402_verify_bip322","x402_derive_fb"],"catalog":"https://x402.fractal.api.thelonelybit.org/v1/tools.json","wellKnown":"https://x402.fractal.api.thelonelybit.org/.well-known/x402","verifyBip322":"https://x402.fractal.api.thelonelybit.org/v1/verify-bip322","env":{"X402_API_URL":"https://x402.fractal.api.thelonelybit.org","UNISAT_API_KEY":"(required for pay)","PAYER_WIF":"(required for pay + local BIP-322 sign/derive)","PAYER_ADDRESS":"(required for pay)","MAX_AMOUNT_SATS":"50000","MAX_FEE_SATS":"5000"},"mcpServers":{"x402fb":{"command":"npx","args":["tsx","agent-kit/mcp/server.ts"],"env":{"X402_API_URL":"https://x402.fractal.api.thelonelybit.org"}}},"docs":"https://github.com/The-Lonely-Bit/os-x402.fb","nexumbitSigner":"https://github.com/The-Lonely-Bit/Taproot-based_Discreet_Log_Contracts/tree/main/Signer","note":"Run from x402fb-platform checkout (pay + BIP-322 use api deps). Search/list/verify work without a wallet. PAYER_WIF never leaves the MCP process. For DLC/Taproot PSBT recovery use the Python NexumBit Signer locally."}