Find MCP servers that
actually work.

Vector Search API

io-github-br0ski777-vector-search

In-memory vector search with TF-IDF and cosine similarity. x402 micropayment.

Weather API

io-github-br0ski777-weather-api

Current weather and 7-day forecast for any location. OpenMeteo-powered. x402 micropayment.

Web Search API

io-github-br0ski777-web-search

Web search returning structured results — titles, URLs, snippets. x402 micropayment.

Webhook Tester API

io-github-br0ski777-webhook-tester

Test webhook endpoints — send requests, measure latency, validate responses. x402 micropayment.

Well-Being Check

com-keenethics-labs-well-being-check

Hosted MCP app for guided anxiety, depression, and well-being self-checks.

Whale Alert API

io-github-br0ski777-whale-alert

Track large on-chain whale transactions on Ethereum and Base. x402 micropayment.

Word Counter API

io-github-br0ski777-word-counter

Count words, characters, sentences, paragraphs, reading time. x402 micropayment.

adu-zoning

io-github-themutherfvcker-adu-zoning

Check if a Florida address can build an ADU: county GIS zoning, eligibility verdict, local rules.

agent-context-api

io-github-dacode-dev-agent-context-api

Free MCP context preflight with local redaction and a paid HTTP upgrade.

constitution-lint

dev-agentopskit-www-constitution-lint

Static linter for CLAUDE.md-style agent constitution files: 10 operational-guardrail checks.

constitution-lint

dev-agentopskit-constitution-lint

Static linter for CLAUDE.md-style agent constitution files: 10 operational-guardrail checks.

convention.sh

sh-convention-mcp

Ship production-ready TypeScript code in half the time, at half the cost.

dilli-email-validation-api-server

com-dillilabs-deva-dilli-email-validation-api-server

An MCP server that provides tools to validate an email address using Dilli Email Validation API.

exposure-audit

io-dozier-exposure-audit

Free AI-visibility and competitive Exposure Audit for any domain. No account, no API key.

micropay-test-suite

app-netlify-micropay-test-suite-micropay-test-suite

Verify your agent's x402 payment flow for free on Base Sepolia testnet before real money moves.

mifactory-scraping-api

io-github-mifactory-bot-mifactory-scraping-api

Web scraping for AI agents. Extract text and metadata from any URL worldwide. $0.005/page.

name-check

com-nombrio-name-check

Live brand-name availability checks: US trademark (USPTO), domains, social handles, app stores.

openunfurl

io-github-solvohq-openunfurl

Zero-signup anonymous link-unfurl API. One GET returns clean JSON metadata for any public URL.

openworkdays

io-github-solvohq-openworkdays

Zero-signup business-day date-math API: add days, count days between dates, is-business-day.

pohjola-api

io-github-nousulabs-debug-pohjola-api

Agent-native API for Finnish public company data via YTJ. Pay-per-call $0.01 USDC over x402.

review-mcp

io-github-hectorguerilla-review-mcp

Multi-model code review: a panel of models + detectors return a pass/fail verdict. Paid via x402.

scamcheck-mcp-server

io-github-smijo-geek-scamcheck-mcp-server

Scan suspicious messages, URLs, and text for scams with AI. Free tier - no API key required.

selfping

com-selfping-selfping

Text your own phone when a run finishes or needs you. A key can only message its own number.

skim

dev-workers-perch-app-skim-skim

URL to Markdown or structured JSON (schema.org/OG); renders SPA; batch reads. No signup/key.

specky

io-github-fathyshalaby-specky

Turn raw customer feedback into evidence-cited specs (free, no key) plus 16 PM tools.

stillos-edge-gate

io-github-stillmarcus24-stillos-edge-gate

Grade a track record before risking capital: REAL_EDGE/REGIME_LUCK/NEGATIVE_EV. Fail-closed.

stock-moves-explained

io-github-pink707legendary-stock-moves-explained

Explains why stocks moved. 'Why did Tesla drop?' 'What happened to NVDA?' S&P 500/NASDAQ/Dow.

surf

tech-geckovision-surf

Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.

validar-codigo-medico

io-github-encodi-validar-codigo-medico

Validates ICD-10-CM against the real FY2026 catalog (NCHS/CDC) and CPT by structure/category.

validate

io-github-machinegrade-validate

Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.

verify

com-kenoodl-verify

Runs your code against a contract; returns HELD or BROKE at the exact input. Deterministic.

webpage-to-pdf

org-urltopdf-webpage-to-pdf

Convert any public webpage to a PDF. Single narrow tool, not a bloated PDF toolkit.

cloudoracle

io-tooloracle-cloudoracle

CloudOracle - 14-tool multi-cloud compliance MCP: AWS, Azure, GCP posture, IAM, configs.

Starwell: World Data & Statistics

dev-starwell-world-data-statistics

Statistics from 28 agencies: FRED, Eurostat, ECB, World Bank, OECD. Cited values, computed answers.

api-mock-server

io-github-lazymac2x-api-mock-server

Cloudflare Workers MCP server: api-mock-server

ai-prompt-optimizer

io-github-lazymac2x-ai-prompt-optimizer

Cloudflare Workers MCP server: ai-prompt-optimizer

china-export-rebate-mcp

io-github-rainbow686-china-export-rebate-mcp

China export tax rebate rate & HS code lookup (官方退税率).

Tasks Example

live-alpic-tasks-example-ca49f0f6-tasks-example

A test MCP server for task management

mifactory-spec-api

io-github-mifactory-bot-mifactory-spec-api

Convert docs to agent-readable specs with criteria and constraints. $0.10/convert.

icd-mcp

io-github-stayce-icd-mcp

WHO ICD-10/ICD-11 diagnosis codes. Lookup, search, chapters via official WHO API.

ProofX - Content Protection for Creators

io-github-razashariff-proofx

Protect and verify digital content with cryptographic signing and proof of ownership.

Angel Numbers Deterministic API

io-github-pewsta66-angel-numbers-api

Deterministic angel number meanings via MCP, with x402 USDC paid interpretations on Base.

Charter Captain

com-chartercaptain-charter-captain

Discover Lake Michigan charter captains & boats, check availability, get quotes, and book.

Hilt Pay Agent Commerce

so-hilt-agent-commerce

x402 V2 payment-to-access on Solana USDC with receipts, entitlements, atomic metering and webhooks.

Izifete — prestataires événementiels en France

fr-izifete-prestataires

Prestataires événementiels vérifiés en France, par métier et ville — Izifete.

eng-leadership-toolkit

coach-marian-eng-leadership-toolkit

Engineering leadership benchmarks, 1:1 playbooks, developer value calculator. 3,400+ sessions.

Lviv Public Transport

io-github-vbhjckfd-timetable-api-node

Lviv public transport MCP: stops, timetables, routes, and live vehicle positions. No API key.

CodePic

io-github-abelce-codepic

AI agent draws editable hand-drawn diagrams (flowchart, ER, architecture) via MCP, not static images