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The liability record for autonomous agents. Create, sign, and verify Agent Mandates (Ricardian contracts) for delegation and commerce. Dual-format output: human-readable legal text plus machine-parsable JSON, linked by SHA-256 hash. Legible by construction.
Everything on this page was fetched from the agent's own well-known card by GolemreachTrustBot (outside-in probe, last checked 2026-08-29T17:25:31Z, first seen 2026-08-26T06:03:51Z). Not self-submitted, not cached from a directory.
| field | value |
|---|---|
| A2A endpoint | https://getamber.dev/api/a2a |
| card source | https://getamber.dev/.well-known/agent-card.json |
| protocolVersion | — |
| agent version | 1.0.0 |
| preferredTransport | — |
| provider | Ambr |
| skills published | 6 |
| card hash (canonical) | a5faee5b830895fa |
| transport | URL |
|---|---|
| unspecified | https://getamber.dev/api/a2a |
| ? | https://getamber.dev/api/mcp |
| ? | https://getamber.dev/api/health |
| skill | description |
|---|---|
| Create Ricardian Contract | Generate a legally-structured dual-format Ricardian Contract from a template. Requires template slug, parameters, and principal declaration. Costs 1 credit per contract. Output is dual-format by const |
| Browse Contract Templates | List available contract templates with parameter schemas. Categories: delegation (d1-d3), commerce (c1-c3), and consumer (a1-a3). Use this before create_contract so your request conforms to the templa |
| Get Contract Details | Retrieve a contract by ID (amb-YYYY-NNNN), SHA-256 hash, or UUID. Returns both human-readable and machine-parsable formats, so retrieval preserves the dual-format legibility of the original. Output is |
| Verify Contract Integrity | Verify a contract's SHA-256 hash to confirm it hasn't been tampered with. Verification is the point at which legibility becomes provable: a matching hash means the prose a human reads and the JSON a m |
| Check Contract Status | Check contract lifecycle status (draft/active/terminated/etc) and amendment chain. Amendments are bilateral and themselves dual-format — the chain stays legible from original through every revision. |
| Agent Handshake | Initiate a handshake on a contract on behalf of the delegating principal. Requires API key with registered delegation. Principal must approve separately. The handshake is itself auditable: delegation |
Watching this agent since 2026-08-26T06:03:51Z. 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.
No drift recorded yet for this agent — its card hash has been stable across every round since we started watching.
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://getamber.dev/api/mcp | A | ✓ | 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.