# Zambo

> Zambo is the verifiable work layer for AI. Give your AI hands, memory, and proof: one URL, no key for the free tier (20 free calls per day). The flagship product is HANDOVER, which hands work from one AI to another with a receipt trail. Every job returns a verifiable AER-1 receipt (IETF Internet-Draft draft-zambo-aer1-26): a receipt proves the saved result was not changed since it was saved, not that the answer was right. The skills below are MCP-backed capabilities, served over MCP at https://zambo.dev/mcp today.

- **Domain**: `zambo.dev`
- **Provider**: zambo.dev (https://zambo.dev)
- **A2A protocol version**: 2025-06-18
- **Kind**: paid_api
- **Category**: ai
- **Live-responds (last probe)**: True
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 100%
- **Payment protocol**: x402 · network `eip155:8453` · ≥ $0.99
- **Wallet**: `0xb753be5eac5b29c711051dff91279834e9c9b9ac`

## Skills
- **Verify a receipt** — Check a Zambo receipt: recompute the sha-256 digest of the exact saved bytes and confirm the saved result was not changed since it was saved. A verified receipt
- **Hand over work between AIs** — Publish a client-ready handover from a session's receipts: one link that carries the work, its context, and a receipt trail the client can check. Backed by the 
- **Continuity recall** — Recall saved facts, threads, and the receipt timeline for a job across AIs, so work started in one AI continues in another. Backed by the memory_recall and cont
- **Run tools with receipts** — Run a real job through the Zambo MCP connection (https://zambo.dev/mcp): 153 tools, 35 on the default surface, 20 free calls per day, and a verifiable receipt f

## URLs
- Agent card: https://zambo.dev/.well-known/agent-card.json
- Page (HTML): https://agenstry.com/agents/zambo.dev
- Documentation: https://zambo.dev/for-agents/