Developer Tools MCP Servers

Check exact npm/PyPI upgrades for evidence-backed breaking changes; query APIs and components.

Renamed to FactReason. Now published as io.github.factreason/factreason — please use that entry.

Read-only access to your tabletop campaigns: codex, sessions, and session notes.

Real 3D-print slicing, quoting, DFM, orientation & material/settings advisors. Free personal tier.

Validation suite: EU VAT (VIES), IBAN mod-97, email (MX+disposable), geo place lookup, VIN decode.

Decode EVM bytes to JSON: event-log decoder, calldata explainer, selector lookup, ABI fetch.

On-chain monitoring reads: ENS/Basename expiry, gas, token unlocks & Chainlink oracle health.

Verify before you act: deps-check, x402-preflight, json-repair & url-read for agents.

Read-only crypto safety: token honeypot checks, EIP-712 signature decode, approval scans.

Federal Audit Clearinghouse (FAC) MCP — US single-audit data.

FAA Regulations MCP — US Federal Aviation Regulations (14 CFR, 'FARs').

Fan-token intelligence for Chiliz Chain: prices, whale flows, match event impact. 22 read tools.

Check infrastructure health, manage incidents, and run runbooks in Faultline.

Verify URLs, payees, and messages before acting: red/yellow/green trust verdicts for agents.

Verify claims with verdict, confidence & cited sources; batch verify, source checks, daily brief.

FAA Delays MCP — live US airport operational status (FAA, free, no auth).

Financial and accounting reconciliation on F360 Finanças (management for retail chains and franchise

FARA (Foreign Agents Registration Act) MCP.

Agentic CRM for service businesses — bookings, customers, WhatsApp, loyalty, invoicing.

FBI Art Crimes MCP — FBI National Stolen Art File (free, no auth).

Verify claims with web evidence. Returns sources and verdict. x402 micropayment.

FBI Crime Data Explorer MCP — UCR/NIBRS statistics

FAS MCP — USDA Foreign Agricultural Service (trade & global production data)

Facebook Ads MCP Pack