ReceiptRail
What this MCP does
Issues and verifies delivery receipts tied to x402 payment settlements and Solana state, including signed x402 receipt validation.
Tools
Input schema
{'type': 'object', 'properties': {'receipt_id': {'type': 'string', 'description': 'Receipt id, e.g. r_abcdef1234567890'}, 'payment_ref': {'type': 'string', 'description': 'x402_payment_ref of the transaction (use this if receipt_id unknown; resolved on-chain)'}}}
Input schema
{'type': 'object', 'required': ['x402_payment_ref', 'deliverable_digest'], 'properties': {'buyer': {'type': 'string', 'description': 'Optional buyer identifier (wallet address)'}, 'seller': {'type': 'string', 'description': 'Optional seller identifier'}, 'x402_payment_ref': {'type': 'string', 'description': 'Unique reference for this transaction (1-128 chars)'}, 'deliverable_digest': {'type': 'string', 'description': 'SHA-256 hex digest (64 chars) of the delivered content'}, 'x402_payment_signature': {'type': 'string', 'description': 'Solana tx signature of the 0.001 USDC payment to the service address. Omit to receive the payment challenge.'}}}
Input schema
{'type': 'object', 'properties': {'receipt_id': {'type': 'string', 'description': 'Receipt id, e.g. r_abcdef1234567890'}, 'payment_ref': {'type': 'string', 'description': 'x402_payment_ref of the transaction (use this if receipt_id unknown; resolved on-chain)'}}}
Input schema
{'type': 'object', 'required': ['receipt'], 'properties': {'expect': {'type': 'object', 'properties': {'payer': {'type': 'string'}, 'network': {'type': 'string'}, 'resourceUrl': {'type': 'string'}}, 'description': 'Optional assertions: {resourceUrl?, payer?, network?} — verification fails if the payload contradicts them.'}, 'receipt': {'type': 'object', 'required': ['format', 'signature'], 'properties': {'format': {'enum': ['jws'], 'type': 'string'}, 'signature': {'type': 'string', 'description': 'JWS compact serialization (header.payload.signature)'}}, 'description': 'Signed receipt artifact, e.g. {"format":"jws","signature":"<JWS compact serialization>"}'}, 'public_key_jwk': {'type': 'object', 'description': 'Optional JWK to verify with. Omit to resolve from the kid (did:key:z... Ed25519, did:web, did:jwk).'}, 'max_age_seconds': {'type': 'number', 'description': 'Freshness window for issuedAt (default 3600; pass 0 to skip the freshness gate).'}}}
Recent tool changes
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