research MCP servers

Servers that give an agent access to something — a filesystem, an API, a database. Every listing here was approved by a person before it appeared, and links out to the source rather than reproducing it. We deliberately don't publish ready-made config blocks: a working one carries arguments and environment variables, and those are somebody's secrets waiting to happen.

1 server

Grounded synthesis from public sources. 3 free calls total; then $0.10 brief or $0.25 deep via x402.

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