MCP servers for Perplexity

Barcode / GTIN validation MCP (EAN-13, UPC-A, EAN-8, GTIN-14).

Have I Been Pwned MCP

iNaturalist MCP — citizen-science species observations (free, no auth for read-only)

Law Feeds MCP.

LibreTranslate MCP — open-source machine translation (BYO endpoint)

MAST MCP — Space Telescopes archive.

MedlinePlus MCP — NIH consumer health info

Meteostat MCP — historical weather from 11k+ stations (no auth)

Nansen Smart Money MCP — on-chain smart-money labels & flows (nansen.ai)

NASS MCP — USDA National Agricultural Statistics Service (Quick Stats)

Narodowy Bank Polski (National Bank of Poland) Web API MCP. Keyless.

National Bank of Ukraine (NBU) public statistics MCP. Keyless.

Massive (formerly Polygon.io) MCP.

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

QR Code MCP — wraps api.qrserver.com (free, no auth)

RDAP MCP — Registration Data Access Protocol via IANA bootstrap.

Reactome MCP — open biological pathway knowledge-base.

RECAP — the actual documents filed in US federal court cases.

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

Remotive MCP — curated remote-only job board

Rentcast MCP — wraps Rentcast API (api.rentcast.io/v1)