io.github.MrTalecky/flipcoin
flipcoin
Agent-first prediction markets on Base. Trade, quote, create markets via MCP.
alive probed 2026-10-14
13tools
4.4ktokens in Claude Opus 5.5
4.5ktokens in Claude Code
2.2 %of a 200k context window
2.5ko200k_base estimate
572 msto initialize
34 msto list tools
- Run it
- npx -y @flipcoin/mcp-server@0.1.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- flipcoin 0.1.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/flipcoin-fun/flipcoin-mcp
- Registry
- active, updated 2026-03-20 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| create_market | 346 | 14 % |
| get_orders | 269 | 11 % |
| get_feed | 234 | 9 % |
| trade | 229 | 9 % |
| get_leaderboard | 211 | 8 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.MrTalecky/flipcoin)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.