Receipt — sign an agent's work, verify it offline MCP Server

by ecstatica Your server? Claim it

answering

Receipt — sign an agent's work, verify it offline is answering right now. Last checked 6 min ago. It exposes 2 tools. Last commit 30 Oct 2026.

Ed25519 receipts over work artifacts: issue and verify offline, no account, no chain, no network.

Uptime history 4 days of history · worst day 18%

4 days agonow

17.6%

Uptime 24h

16 of 91 checks

Tools

read from the server

364 ms

Response time

average over 24h

Stars

last commit 30 Oct 2026

Receipt — sign an agent's work, verify it offline does not always answer

Over the last week it answered 55.2% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add ggbank-receipt --transport http https://receipt.whirlwindcorp.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://receipt.whirlwindcorp.com/mcp

~/.codex/config.toml

[mcp_servers.ggbank-receipt]
url = "https://receipt.whirlwindcorp.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "ggbank-receipt": {
      "url": "https://receipt.whirlwindcorp.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "ggbank-receipt": {
      "type": "http",
      "url": "https://receipt.whirlwindcorp.com/mcp"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

issue

issue_receipt

Sign an artifact with an Ed25519 receipt. Returns the receipt JSON: artifact hash, agent, task, amount and a signature anyone can verify offline.

verify

verify_receipt

Verify a receipt offline: signature, every field, and optionally the artifact hash. Returns ok=false with the failing reason when anything has changed.

Endpoints

URL	Transport	State	Latency	Checked
https://receipt.whirlwindcorp.com/mcp	streamable-http	answering	180 ms	6 min ago

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same job, measured the same way

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Sdcreceipt

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Sequesign

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Cryptographically verifiable receipts of an agent's delegated work, verified offline.

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Acta — Verifiable Agent Memory

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Verifiable agent memory with signed ledger receipts — verify every write offline.

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Veritasacta Verify

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Offline receipt verifier. Ed25519 signature verification without contacting any server.

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Agora

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Find governed AI capabilities and verify signed receipts. Read-only, no account.

3 tools answering

Receipt — sign an agent's work, verify it offline — questions

Answers built from our own checks of this server.

What can Receipt — sign an agent's work, verify it offline do?

It exposes 2 tools, read directly from the server on our last check. Among them: issue_receipt, verify_receipt. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Receipt — sign an agent's work, verify it offline working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 16 of 91 checks got a reply (17.6%), average response time 364 ms. The bar chart above shows every period we have measured.

How do I connect Receipt — sign an agent's work, verify it offline?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Receipt — sign an agent's work, verify it offline need an API key?

No. Receipt — sign an agent's work, verify it offline completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Receipt — sign an agent's work, verify it offline?

It answers our handshake in 364 ms on average, which is faster than 37% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Receipt — sign an agent's work, verify it offline open source?

We cannot say either way: written in Python and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.