MCP servers for DeepSeek Harness

Math.js MCP — wraps the mathjs.org API (free, no auth)

NOAA NCEI MCP — the national climate archive, via the keyless Access services

Product Hunt MCP — wraps the Product Hunt GraphQL API v2 (api.producthunt.com)

PubChem MCP — NIH chemistry compound database (no auth)

SAM.gov MCP — Federal contract opportunities and entity registration data

SEO SERP MCP — Google organic search results via DataForSEO (dataforseo.com)

SIMBAD MCP — CDS astronomical object database.

Wikidata MCP — wraps Wikidata API (wikidata.org/w/api.php)

Verify an npm or PyPI package before install: advisories, install scripts, typosquats, repository.

Catches hallucinated and slopsquatted npm and PyPI packages before an agent installs them.

263 tools for Databricks: Unity Catalog, SQL, Compute, Jobs, Serving, and more.

MCP gateway for QA/SDET work: Playwright, files, GitHub, Jira, Postgres & more in one connection.

Turns an AI coding agent session into a reviewable Intent Document, validated against the diff.

Reviewable workspace discovery and private HTML review creation via stdio MCP.

RIPE Stat MCP — IP/ASN/BGP data

Outlook & OneDrive MCP: personal & enterprise tools for mail, calendar, contacts, tasks, files

MCP server that exposes RS485 bus connectivity for reading and writing serial data

Connect AI assistants to the Rubrik Security Cloud GraphQL API to discover, query, and automate.

Garmin data with interactive charts: daily briefing, training trends, workout planning. Unofficial.

Offline Ed25519 verification of signed receipts, bundles, and trust artifacts.

Scottish Courts and Tribunals Service (SCTS) — judgment search.