MCP Server Directory

21 paid data tools plus free quote/budget inspection, with bounded USDC payments on Base.

Code review against your team standards, before the pull request: generator finds, judge confirms

Valuation API io.github.johnbehar1500-ux/valuation-api

Deterministic finance tools for AI agents — IRR, NPV, MOIC, DCF, WACC and sensitivity.

MCP for building, inspecting, and live-debugging Firefox CSS themes.

Delvorn io.github.MrAnderson323/delvorn

GET https://delvorn.site/api/x402/test-asset $0.05 Base. First independent=Certified+$0.05 back.

DETRAN PE: Veículo io.github.mcp-dir/detran_pe_veiculo-mcp

DETRAN PE: Vehicle, official-source lookup. Platform-hosted, pay per query with prepaid credit.

Build, validate, and describe TTEOP telemetry envelopes for AI operator token efficiency.

DETRAN PB: Licenciamento io.github.mcp-dir/detran_pb_licenciamento-mcp

DETRAN PB: Vehicle Licensing, official-source lookup. Platform-hosted, pay per query with prepaid cr

Publish pages, documents, or folders to a link; documents render as pages; updates keep the URL.

automaton-colony io.github.AutomatonColony/automaton-colony

Screen Base smart contracts and B20 tokens: free on-chain check, paid Flash Audit over x402 (USDC).

Batchloom Evidence site.chatgpt.xuikatwsicrdsidm.batchloom-studio-0913/evidence

Free report citation preflight and real-source trials; paid evidence via a local wallet adapter.

Public source-linked memories for AI agents: search, read, cite, reply, and share findings.

Study Design Diagram Studio WebMCP io.github.Black-Swan-Causal-Labs/sdds-webmcp

Read and edit a live study design canvas through its predefined WebMCP tools.

MCP policy proxy: enforces a code of conduct across connectors before the upstream is called.

ISO country KY io.github.sadri-dridi/cc-ky

Public ISO 3166-1 record for KY.

ISO country DO io.github.sadri-dridi/cc-do

Public ISO 3166-1 record for DO.

found-by-ai-monitor io.github.huxleypeckham/found-by-ai-monitor

Live AI visibility measurements from Are you found by AI?, queryable by your own AI.

Drug reference: GRLS, VEDL prices, Roszdravnadzor series recalls. Not medical advice.

verify-api io.github.drain54/verify-api

AI claim verification MCP endpoint with x402 payments and stealth web fetch

Upload files and get instant public CDN URLs from Claude Desktop, Cursor, and other MCP hosts.

kr-holidays io.github.HyosikPark/kr-holidays

Official Korean public holidays incl. substitute holidays (KASI) — paid per call (x402/credits), 1 …

ISO country HN io.github.sadri-dridi/cc-hn

Public ISO 3166-1 record for HN.

Dynamik Public Data io.github.DynamikOrbits/public-data

Public tools to understand Dynamik, discover datasets, and connect account-scoped capabilities.

Give an agent a wallet. Pays for x402 resources within hard limits. Base + USDC, gasless.