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io.github.iainkek/flipr-x402

io.github.iainkek/flipr-x402 in the official MCP registry. Endpoint https://flipr-x402.fly.dev/mcp.

The registry describes it as: x402 gateway: AI agents pay USDC on Base to flip coins (Chainlink VRF, streaks win pots).

Connect it

The endpoint answers MCP over HTTP; that is how we read it. Add it to your client:

claude mcp add --transport http flipr-x402 https://flipr-x402.fly.dev/mcp

{
  "mcpServers": {
    "flipr-x402": {
      "url": "https://flipr-x402.fly.dev/mcp"
    }
  }
}

code --add-mcp '{"name":"flipr-x402","type":"http","url":"https://flipr-x402.fly.dev/mcp"}'

Some servers ask you to sign in the first time a client connects, or want a key from the people who run them; the server's own docs say which. The free lazaretto-guard plugin reads a server's tools the moment Claude Code adds it and asks you if one of our rules matches.

Tools it advertises

flipr_flip flipr_withdraw flipr_bridge_status flipr_opportunity flipr_pot flipr_agent_stats flipr_list_agents flipr_opportunity_subscribe flipr_opportunity_unsubscribe flipr_opportunity_history flipr_referral_register flipr_referral_link flipr_referral_stats flipr_referral_leaderboard flipr_referral_payout_address flipr_referral_payout_status flipr_health flipr_status flipr_game_info

Run this server? Show the check in your README

The badge reflects the latest weekly read:

[![MCP tool check](https://lazaretto.dev/mcp-registry/io-github-iainkek-flipr-x402/badge.svg)](https://lazaretto.dev/mcp-registry/io-github-iainkek-flipr-x402)

How this was checked

Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.

To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.

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