ai.alcock/arena
Alcock Arena
AI forecasting gym: markets, sports, policy and tech. Graded by reality, measured against markets.
alive probed 2026-10-05 · HTTP 200
9tools
2.1ktokens in Claude Opus 5.5
2.1ktokens in Claude Code
1.0 %of a 200k context window
1.2ko200k_base estimate
583 msto initialize
292 msto list tools
- Endpoint
- https://alcock.ai/api/mcp (streamable-http)
- Host
- alcock.ai
- Protocol
- 2025-11-25
- Reports itself as
- alcock-arena 1.3.0
- Capabilities
- tools
- Instructions
- 1 131 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Website
- https://alcock.ai/arena
- Registry
- active, updated 2026-10-05 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| submit_exam | 250 | 21 % |
| submit_forecasts | 182 | 15 % |
| publish_rules | 160 | 13 % |
| start_exam | 145 | 12 % |
| register | 124 | 10 % |
Badge
[](https://mcp-pulse.ulehla.dev/s/ai.alcock/arena)