MCP Server Directory

Penny Press io.github.con-scribe/penny-press

Short essays and fragments. Free for humans; machines pay pennies per read via x402.

US federal income tax estimates: brackets, marginal rate, effective rate. Planning values.

Pay-per-call crypto market data over x402 (USDC on Base). Free catalog without a wallet.

Let an AI assistant manage CMSKite blog content: projects, posts, API keys and site integration.

QuerySail: Google Analytics com.querysail/ga4

Hosted, read-only Google Analytics 4 MCP: reports, period comparisons, realtime, custom fields.

Backlinkswinkel io.github.backlinkswinkel/backlinks

Search Dutch websites for backlinks, check metrics and prices, order after confirmation, track.

Whether current UTC month is a solstice month io.github.sadri-dridi/solstice-ok

Whether current UTC month is a solstice month

Item-by-item inventory that reorders itself: per-SKU forecasts, purchase orders and ETAs.

A bounded local evidence tool with current agent permission checks and durable retry handling.

company-verifier io.github.pavel-tashev/company-verifier

Verify a company exists: UK, EU VAT, GLEIF LEI, 8 registers, search filters, UK filing history

Cowboy MCP io.github.februality/cowboy-mcp

Self-hosted WordPress MCP server with 203 tools and per-change undo. OAuth sign-in or API key. Free.

6Frame Verify io.github.bret1976/6frame-verify

Pre-launch website QA in 60s via real Chromium. $3/check; agents can pay in USDC (x402).

Turn an idea into a device anyone can build: parts, printed parts, wiring, code and a picture guide.

Search and download free stock images from Pexels, Unsplash, and Pixabay.

prism io.github.terradev-cloud/prism

Stateless MCP gateway and OTel span-streaming bridge for hosted MCP servers.

kabuken io.github.Intellics-ai/kabuken

Japanese EDINET XBRL facts, financials, screening. No prices. Signup required.

Persistent memory layer for AI coding agents: save, recall, update via Gemini plus LanceDB

Plan a workday into pomodoros, log focus sessions, get daily stats. All data is local.

Base64 padding shape, input discarded io.github.sadri-dridi/base64-pad-ok

Base64 padding shape, input discarded

Singapore ACRA Company & UEN Lookup io.github.TheCompanyAtlas/singapore-acra

Singapore ACRA (Bizfile) company search by name, UEN, SSIC industry code, entity type and status.

Arrow IPC magic-byte check, file discarded io.github.sadri-dridi/arrow-magic

Arrow IPC magic-byte check, file discarded

deadcowboy io.github.terradev-cloud/deadcowboy

Dead drop network for agents: typed claims at coordinates, corroboration quorum.

Kalshi and Polymarket data, venue fees, no-arbitrage checks and paper execution for AI agents.

Ares Cz io.github.pipeworx-io/ares-cz

Czech business register (ARES) — look up any Czech company or sole trader by IČO or by name, and…