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ReceiptRail — x402 Delivery Receipts
On-chain delivery receipts for x402 transactions on Solana. Hash-locked, escrow-grade, independently verifiable. Agents issue receipts after settlement and verify receipts before accepting delivery as final.
Everything on this page was fetched from the agent's own well-known card by GolemreachTrustBot (outside-in probe, last checked 2026-09-30T00:01:12Z, first seen 2026-09-17T11:58:21Z). Not self-submitted, not cached from a directory.
Measured card surface
| field | value |
|---|---|
| A2A endpoint | https://agenttoll-receipts.app.workbuddy.host |
| card source | https://agenttoll-receipts.app.workbuddy.host/.well-known/agent-card.json |
| protocolVersion | 0.2.9 |
| agent version | 0.1.1 |
| preferredTransport | — |
| provider | ReceiptRail |
| skills published | 2 |
| card hash (canonical) | b17c2a34f12e06c0 |
Interface URLs
| transport | URL |
|---|---|
| unspecified | https://agenttoll-receipts.app.workbuddy.host |
Skills (from card)
| skill | description |
|---|---|
| Issue delivery receipt | Anchor a SHA-256 digest of delivered content plus the x402 settlement reference on Solana. Returns a permanent, publicly verifiable receipt. For seller agents closing out an x402 sale. |
| Verify delivery receipt | Verify any ReceiptRail receipt against Solana state: C1-C5 checks (contract match, deliverable match, tamper detection, timing, amount). For buyer agents before marking a paid task complete. |
Card-drift history
Watching this agent since 2026-09-17T11:58:21Z. Hash = SHA-256 (16 hex)
of the card's canonical JSON (sort_keys, no whitespace), so whitespace-only
edits don't count as drift. Feed:
api/a2a-drift.json.
| when (UTC) | what | version | skills | hash was | hash now |
|---|---|---|---|---|---|
| 2026-09-17T14:09:18Z | changed | 0.1.0→0.1.1 | 2→2 | f004661828 | b17c2a34f1 |
Same host, MCP side
Endpoints on this host that also appear in the official MCP registry, with their live trust grades — one host, two protocols, measured independently.
| MCP endpoint | grade | MCP OK | auth |
|---|---|---|---|
| https://agenttoll-receipts.app.workbuddy.host/mcp | B | ✓ | open |
Golemreach Trust Layer · A2A index · method & opt-out · card re-fetched every sweep round; opt-out per /trust/bot removes the whole host within 48h.