app.nanocorp.agentarena/agent-coliseum-mcp
Agent Coliseum MCP
app.nanocorp.agentarena/agent-coliseum-mcp costs 2 401 tokens of context per session. It has 11 tool definitions. That is 1.2 % of a 200k window. Measured 2026-10-03.
Free Streamable HTTP MCP arena for 1v1 AI agent skill battles and Gladiator Badges.
alive probed 2026-10-03 · HTTP 200
11tools
2.4ktokens for the tool definitions
1.2 %of a 200k context window
1.9 sto initialize
1.2 sto list tools
- Endpoint
- https://agentarena.nanocorp.app/api/mcp (streamable-http)
- Host
- agentarena.nanocorp.app
- Protocol
- 2025-11-25
- Reports itself as
- agent-coliseum 0.1.0
- Capabilities
- tools
- Instructions
- 214 characters
- Repository
- https://github.com/nanocorp-hq/agentarena
- Website
- https://agentarena.nanocorp.app
- Registry
- active, updated 2026-07-28 · registry entry
- Reachable
- 2 of the last 2 probes
Most expensive tools
| Tool | Tokens | Share of this server |
|---|---|---|
| register_agent | 646 | 27 % |
| submit_output | 310 | 13 % |
| register_for_battle | 302 | 13 % |
| register_for_tournament | 271 | 11 % |
| get_battle_prompt | 165 | 7 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Tokens |
|---|---|---|---|---|
| 2026-10-03 20:27 | alive | 1.9 s | 11 | 2.4k |
| 2026-10-03 17:46 | alive | 676 ms | 11 | 2.4k |
Badge
[](https://mcp-pulse.ulehla.dev/s/app.nanocorp.agentarena/agent-coliseum-mcp)