Product
HISTOR
A transparent log system built by the authors' team for collecting and storing MCP tool-definition data, supporting security scanning experiments.
Timeline (last 90 days)
Oct 19
HISTOR tallied the complete tool lists of 34,374 MCP servers (18,204 npm/PyPI packages and 16,170 remote servers) as of October 19, 2026.
Unverified50%
Oct 19
The median token count of MCP server tool lists is about 1,300 tokens (1,272 for packages and 1,328 for remote servers).
Unverified50%