Tool (MCP)
An MCP tool is an action a server offers to the model, described by a name, a description and a JSON Schema for its inputs. The 105 open servers behind live listings expose 1,541 tools on October 13, 2026, a median of 6 per server.
- Tools on open servers
- 1,541
- Median per server
- 6
- Largest server
- 400api.duvo.ai
- MCP dataset
- 7,777 toolsevery store we track
More from our data
The 90th percentile is 23 tools, and the largest server, api.duvo.ai, has 400. Counting one server that is no longer open but keeps an earlier stored list, tools are visible on 106 servers, 1,549 tools in all. Our wider MCP dataset is the 425 open servers we track across every store, not only the 105 behind ChatGPT and Claude listings, with 7,777 tools. In it, the median description is 350 characters, the median tool takes 3 parameters, and the most common parameter name is limit.