Look up namedays by name, date, country, or ID

Resolve DOIs, search ~155M scholarly works, fetch references, and look up publishers via the Crossref REST API. STDIO or Streamable HTTP.

Look up US healthcare providers in the NPPES NPI registry and resolve NUCC specialty codes via MCP. STDIO or Streamable HTTP.

Search LOC digital collections, browse Chronicling America newspapers with full OCR text, and look up LC Subject Headings via MCP. STDIO or Streamable HTTP.

Look up Pokémon, moves, abilities, items, natures, and type matchups from PokéAPI v2 via MCP. STDIO or Streamable HTTP.

Look up countries, timezones, periodic table elements, physical constants, units, HTTP status codes, and MIME types via MCP. STDIO or Streamable HTTP.

Look up data from the Norwegian Entity Registry

Model Context Protocol server for wcagcheckr. Lets LLM-IDEs (Claude Code, Cursor, Continue, etc.) drive accessibility audits, verify forensic receipts, and look up tier features programmatically. Same audit engine as the Chrome extension and CI runner.

Look up the polygraph for an MCP server. Independent, lab-evaluated trust grades — see polygraph.so.

Shared conversation index across Claude Code, Grok Build, OpenCode, Codex, and Hermes — look up which session produced a branch, file, or PR from any of those clients

a shortstop handler to look up all DNS A and AAAA records

Look up genes, fetch sequences, predict variant consequences, find orthologs and cross-database xrefs via Ensembl REST via MCP. STDIO or Streamable HTTP.

Look up General_Category of Unicode character

Look up ZenScript class definitions, fields and method signatures from CraftTweaker dumps

Announce and look up services on a local network using mdns.

Look up a word using the wordnik API.

Search Stack Exchange questions, fetch complete Q&A threads as clean markdown, browse tag FAQs, and look up user profiles via MCP. STDIO or Streamable HTTP.

TypeScript SDK for the HANKO Solana Agent Trust Registry. Look up trust, register agents, post attestations, and query karma.

Search foods, compare nutrients, and look up the full USDA FoodData Central database via MCP. STDIO or Streamable HTTP.

A collection class used to map and look up iterables related to a key.