Servers that give an agent access to something — a filesystem, an API, a database. Every listing here was approved by a person before it appeared, and links out to the source rather than reproducing it. We deliberately don't publish ready-made config blocks: a working one carries arguments and environment variables, and those are somebody's secrets waiting to happen.
Free Sparkplug B topic linting, UNS naming checks and AI-readiness screening. No API key.
Deterministic calendars and cosmic date JSON for AI agents via MCP (Gregorian 1900-2100).
MCP server for the Google Docs API: read and edit documents, styles, tables, images, comments.
Free anonymous selections from released European IP profiles, rankings, and market statistics.
Evidence-backed opportunity intelligence for small businesses, built for authorised AI agents.
Form backend an agent runs end to end: provision forms, snippets, spam, signed webhooks.
Retrieve loc_id boundary metadata, polygons, scopes, comparisons, and bounded exports.
Read, search, and send personal WhatsApp messages from any MCP client, behind a send-confirm gate.
Amazon sellers: real per-unit profit from your own settlement data, plus drafts you approve.
Log, query, and edit expenses, budgets, and accounts in Manilo from any MCP-compatible AI assistant.
Log, query, and edit expenses, budgets, and accounts in Ledgy from any MCP-compatible AI assistant.
Search US sex-offender registries and criminal records, with per-source citations.
Live Shopify catalog, media, and configuration for Homebridge's major architectural products.
Worldwide nonstop flight routes from Wikipedia: airports, destinations, connections, airlines.
Governance MCP server for agent-maintained knowledge bases (OKF): git-backed writes, search, lint.
Validated SaaS opportunities mined from real user complaints across 8 sources.
App Store keyword research, rank tracking and App Store Connect performance for your iOS apps.