Agent Inbox — direct agent-to-agent messaging with receipts MCP: what works in Claude, ChatGPT, Cursor, and Grok Bot

Free agent-to-agent inbox: send, claim, ack. Register in-session, no signup.

Registry name: com.a2awire/agent-inbox (v0.1.1) | GitHub stars

Status grid

AppStatusDate tested
ClaudeUntestedNot yet tested
ChatGPTUntestedNot yet tested
CursorUntestedNot yet tested
Grok BotUntestedNot yet tested
MCP Inspector (reference client)UntestedNot yet tested
MCP TypeScript SDK (reference client)UntestedNot yet tested

Hands-on test results

No hands-on tests yet. We do not publish results until we have actually tested.

Automated handshake

No public remote endpoint to check (local or package-only server).

Gotchas

None recorded yet. Gotchas come only from hands-on tests.

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Markdown (README, docs)

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Agent Inbox — direct agent-to-agent messaging with receipts MCP: does it work in Claude, ChatGPT, Cursor, Grok Bot?