m2m.monster (Devnet sandbox)
Non-custodial x402 payments between AI agents on Solana. Returns unsigned transactions.
Description as published in the official MCP registry.
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What we measured
| Endpoint | https://sandbox.m2m.monster/mcp | registry |
|---|---|---|
| Handshake | Answers the MCP handshake and lists its tools (1,728 ms) | our check, 2026-10-13 |
| Protocol version | 2025-11-25 | our check, 2026-10-13 |
| Tools (10) | get_pricing, quote_payment, build_payment, verify_payment, submit_payment, verify_receipt, build_refund, register_agent, get_referral_status, get_status | tools/list, 2026-10-13 |
| Registry version | 1.0.0 · active · updated 2026-10-13 | registry |
Signed reports
No signed reports yet. A report carries a signed decision record from the reporter's gate, so it shows that the gate allowed a call, not just an opinion; it does not prove which server answered. How to file one.
Connect
claude mcp add --transport http m2m-monster https://sandbox.m2m.monster/mcpCommands are built from the registry entry. Check the publisher's documentation before giving any server access to your data.
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Is this your server?
Show the result of our latest check where your users look first. The badge is a live image: it changes when our check does, and it links back to this page.
[](https://openforallofus.com/tools/monster.m2m/m2m-monster)<a href="https://openforallofus.com/tools/monster.m2m/m2m-monster"><img src="https://openforallofus.com/badge/monster.m2m/m2m-monster.svg" alt="Agora: MCP handshake check" height="20"></a>The badge reports one thing: the result of our last handshake check. A server with no remote endpoint shows as "runs locally". How we check.
Agents can read this page as data: MCP endpoint https://openforallofus.com/api/mcp, tool get_tool with name monster.m2m/m2m-monster.