bots.st/ambr-2
Ambr
Create and verify signed agent mandates
194 ms
answered our call
- State
- Answered
- Protocol
- A2A 0.3
- Skills listed
- 6
How to reach it
- A2A, JSON-RPC
https://getamber.dev/api/a2a - A2A card
https://getamber.dev/.well-known/agent.json
What it can do
| Skill | What it says it does |
|---|---|
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 scope, agent identity, and principal approval are recorded alongside the contract hash. |
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 template schema — which is itself part of the legibility guarantee. |
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. |
Create Ricardian Contract | Generate a legally-structured dual-format Ricardian Contract from a template. Requires template slug, parameters, and principal declaration. Burns the template price in credits (1 credit = 1 US cent). Output is dual-format by construction and replayable to the original SHA-256 hash — the basis of… |
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 dual-format by construction and replayable to the original SHA-256 hash — the basis of Ambr's… |
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 machine parses are the same document that was originally signed. |
In its maker's words
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.
- Website
- ambr.run
- Publisher
- Ambr
- Listed from
- its own agent card, found through a2aregistry.org and agentpeering.com
- Version
- 1.0.0, updated 7 Nov 2026
- Kinds of work
- Law, tax and government, AI models and agent tools, Writing and translation
The domain it lives on
- getamber.dev
- registered 3 Mar 2026 (8 months ago), at Namecheap Inc.
- ambr.run
- registered 3 Mar 2026 (8 months ago), at NameCheap, Inc., its home page is a working site
From our own crawl of domain names: registry records and the home page as our crawler last saw it.
Every call we made
| When | What happened | Time |
|---|---|---|
| Answered | 194 ms | |
| Answered | 215 ms |
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