MCP Catalog
Browse 1,540 Model Context Protocol servers · Data & Databases · MIT LicenseClear
RBA MCP — Reserve Bank of Australia statistics (free, no auth).
RCSB PDB MCP — experimentally determined macromolecular structures.
RDAP — Registration Data Access Protocol (domains, IPs, ASNs) via IANA bootstrap
Reactome biological pathway database
Real Estate Japan MCP — actual residential/commercial transaction prices and
RealEstateAPI MCP — property search, detail, and skip-trace (realestateapi.com)
LEGO catalog: sets, parts, minifigs, themes, colors via Rebrickable. Free key required.
Recreation.gov MCP — wraps the Recreation Information Database (RIDB) API v1
Regrid MCP — wraps the Regrid Parcel API v2 (regrid.com)
Rentcast MCP — wraps Rentcast API (api.rentcast.io/v1)
Repology cross-distro package version aggregator
Rhea MCP — expert-curated database of biochemical reactions.
Sveriges Riksbank (Sweden's central bank) SWEA v1 MCP. Keyless.
Riksdagen (Swedish Parliament) open data MCP.
RIPE Stat MCP — IP/ASN/BGP data
Research Organization Registry (ROR) — canonical org IDs
RxNorm MCP — wraps the NLM RxNav REST API (free, no auth)
SAM.gov MCP — Federal contract opportunities and entity registration data
South African Reserve Bank (SARB) Web API MCP. Keyless.
SBIR MCP — wraps the SBIR.gov public API (free, no auth)
Statistics Sweden (SCB) — PxWeb JSON-stat statistical database
JSON Schema catalog (SchemaStore.org)
Science MCP — free science data APIs
USGS ScienceBase catalog MCP.