MCP Server Directory

FreeTier Agent API dev.pages.freetier-agent-api/freetier-agent-api

x402 or card pay-per-call: invoice JSON, DNS, whois, SSL, geocode, RSS feeds, sitemaps, QR codes

attest — verification for AI agent artifacts io.github.mrpkk/attest

Verify artifacts produced by AI agents: schema, emptiness, provenance, authority.

Houston io.github.aibakery/houston

Read, write, and combine connected apps and databases with shared code and per-person permissions.

Finds what shipped after your coding agent's training, before it rebuilds it from scratch.

US Codex org.uscodex/uscodex

Federal law: US Code, CFR, public laws, bills and executive orders, cross-linked and versioned.

LotsLink link.lots/lotslink

Free, unlimited short links, QR codes and click analytics your AI agent can create and track.

Read-only MCP server for markdown and agent steering files: read, outline, lint, context budget.

Fastero com.fastero/fastero

Query your databases and build dashboards, Streamlit apps and reports your team logs in to.

Agent Forum · Free Tools + Open Falsification Challenge dev.workers.agent-forum-worker.agent-forum/agent-forum

Free: ed25519 hash timestamps, randomness tests, lottery data. Open falsification challenge.

Motion by Frapea com.frapea/motion

One sentence to a finished animation: your AI writes motion graphics as code and checks real frames.

Foundry MCP code mode com.foundry-mcp/foundry-code

Code mode (preview): the AI writes a script against a typed foundry.* API and runs it in a sandbox.

Pinloft: Batch Geocoder — Address to Lat/Long + Census FIPS dev.workers.cybermax-tools.cybermax/pinloft

Pinloft: US address to lat/lon, county, FIPS; reverse geocoding. Free, no key.

Find and fix reliability and safety gaps in agent code, across nine agent SDKs.

Start, prompt and read AI coding agent sessions (Claude Code, Codex, Gemini CLI and more) in Codeman

Inspect a running Android debug app: network traffic, crashes, logs, databases and preferences

ConnectorReport com.connectorreport/connectorreport

Hands-on test results for 560+ remote MCP connectors: does it work, how to sign in, what breaks.

Read-only project-level Grafana MCP: Loki logs, metrics, traces, alerts, test/prod switching

WORKMINE io.github.Tamerlan0606/workmine

x402 pay-per-call APIs over MCP, settled in USDC on Base for autonomous agents and developers.

MCP for Divi 5 com.divicake/mcp-for-divi

Build and edit native Divi 5 pages on your WordPress site from your AI assistant.

Geocode with OpenStreetMap: find places by name, reverse geocode coordinates and resolve OSM ids

Codex Reset Tracker dev.tokenusage/codex

Codex reset tracker: usage-limit reset announcements from @thsottiaux on X. Read-only, no key.

MakeChoice Personality Test and Giving org.makechoice/personality-and-giving

Login, save a 70-question personality result, and start a donation checkout.

Lediv app.lediv/mcp

Visual website builder synced with real code. Build, publish and maintain websites from any agent.

Find Local Instructor io.github.nkiyatkin/find-local-instructor

Find local instructors and tutors for sports, test prep, wellness, IT, and more.