MCP Servers
Model Context Protocol servers that give AI agents access to tools and data — sourced from the official MCP registry and ranked by GitHub stars.

Pulsedive
Pulsedive MCP — threat-intelligence IOC enrichment (pulsedive.com)

Pypi
PyPI MCP — wraps the Python Package Index (PyPI) JSON API (free, no auth).

Quickbooks
QuickBooks MCP Pack — query customers, invoices, and accounts via QuickBooks Online API.

Quiver
Quiver Quantitative MCP — alternative-data on public companies (quiverquant.com)

Quotes
Quotes MCP — citation-grade quote API for public-domain authors.

randomuser
Random User MCP — wraps randomuser.me (free, no auth)

Rawg
RAWG MCP — wraps the RAWG video games database API (rawg.io)

Rba
RBA MCP — Reserve Bank of Australia statistics (free, no auth).

Rcsb Pdb
RCSB PDB MCP — experimentally determined macromolecular structures.

Rdap
RDAP — Registration Data Access Protocol (domains, IPs, ASNs) via IANA bootstrap

Realestate
Real Estate Japan MCP — actual residential/commercial transaction prices and

Realestateapi
RealEstateAPI MCP — property search, detail, and skip-trace (realestateapi.com)

Rebrickable
LEGO catalog: sets, parts, minifigs, themes, colors via Rebrickable. Free key required.

Recreation Gov
Recreation.gov MCP — wraps the Recreation Information Database (RIDB) API v1

Reddit MCP — public Reddit data via JSON endpoints (no auth required)

Regulations Gov
Regulations.gov MCP — federal regulatory dockets, documents, public comments

Regulatory Catalysts
Regulatory Catalysts MCP — high-value biotech regulatory calendar events (keyless).

Remoteok
RemoteOK MCP — remote-work job board (tech-heavy), keyless.