Find MCP servers that
actually work.

Document Integrity Validator

io-github-ojaskord-document-integrity-validator-mcp

AI reasoning checks any document against known international standards before your agent acts on it.

Fabler x402 Tools

com-fablerlabs-x402-tools

Free catalog and 2,048-character secret-scan preview for Fabler's x402 agent tools on Base.

IssueFoundry Agent Market

io-github-codework-lgtm-issuefoundry-agent-market

Discover agent services and buy IssueFoundry's fractional-cent x402 reliability utilities.

KDP Niche Research

io-github-simul813-kdp-niche-research

Kindle niche intelligence (demand/competition/BSR/revenue) gated by x402 USDC on Base.

Kann KI das? Sponsoring

de-kannkidas-sponsorship

Find available sponsorship slots and create buyer-confirmed Stripe Checkouts on kannkidas.de.

KodShop catalog

cloud-kodshop-catalog

Read-only catalog of gift cards, service top-ups and travel eSIMs sold by KodShop.

Lulu Registry MCP

io-github-lulu-the-narwhal-registry-mcp

Search and get install details on MCP servers, right from your agent -- a unified marketplace index.

MUJ428 Trust Layer — Bind Approved Intent to Verified Effect

io-github-wmujahid428-web-muj428-trust-layer

Payment-rail-independent intent-to-effect integrity for consequential agent actions.

Mako Metrics

com-makometrics-mako-metrics

Competitor Meta ads intelligence reports. List plans, create orders, Stripe checkout for humans.

NDASentry

io-github-valtirman-ndasentry

Anonymous NDA risk analysis for AI agents. $9 per report. No signup, no data retention.

ONCE

io-github-gsterlingpress-once

Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.

Order Book Depth API

io-github-br0ski777-orderbook-depth

Uniswap V3 pool liquidity depth analysis — price impact at 1/2/5/10% levels. x402.

Skybridge Ecommerce Example

tech-skybridge-ecommerce-ecom-carousel

Example MCP App based on Skybridge framework showing an e-commerce products based on request

Tracking & Returns

com-aftership-mcp-tracking-public

Track packages across 1,300+ global carriers with real-time status and AI-powered delivery dates.

VAT Validator MCP

io-github-ojaskord-vat-validator-mcp

Validate EU, UK, AU VAT numbers for AI agents. EU ViDA e-invoicing compliance.

booking

com-virohanalife-booking

Reserve a paid AI consultation with Akshay Shetty; returns a Stripe payment link.

clawmerchants-mcp-gateway

io-github-danielxri-clawmerchants-mcp-gateway

MCP Gateway: wrap any MCP server with cold-start retries, uptime SLA, and per-execution MPP billing.

cost-seg-smart

com-costsegsmart-cost-seg-smart

Cost segregation study pricing and Year-1 depreciation/tax-savings estimates for US properties.

doing

live-alpic-doing-v2-d5286fe8-doing

simple task manager for your LLM

ecommerce-intelligence-mcp-server

com-thenextgennexus-ecommerce-intelligence-mcp-server

Shopify store + product analysis for DTC competitive research.

foragex402

io-github-mapizarro1-foragex402

Meta-search MCP for x402 agent-payable services -- find paid APIs across every registry.

hermes-real-estate-data

io-github-seanthings-hermes-real-estate-data

Typed US real-estate feeds: deals, signals, leads. Empty is explained, never pay for a blank.

kasahorow

com-kasahorow-kasahorow

Bilingual dictionary lookup and translation validation for kasahorow Fellows.

keryx

io-github-tang-vu-keryx

Autonomous research agent that pays every source it cites in USDC on Arc via x402 micropayments.

king-of-the-hill

dev-workers-3labsio-kingofthehill-king-of-the-hill

x402 game: take the crown, each take raises the next price 1.5x. hill_status is free.

mcp

com-cloudflare-mcp-mcp

Cloudflare MCP servers

parcel-quotes

com-smklog-parcel-quotes

Live USPS, UPS and FedEx rates for a US parcel described in plain words. No scale needed.

real-estate-data

io-dwelldata-real-estate-data

DwellData: typed US real-estate feeds — deals, distress, auctions, leads, address lookup.

reddit-mcp-server

com-thenextgennexus-reddit-mcp-server

Post + comment + subreddit search with comment-level depth for sentiment work.

run.pay

io-github-palabrex-runpay

Stripe-native marketplace where AI agents discover and pay per call for API services.

symbols-of-wealth-studio

io-github-lisleabrahams-symbols-of-wealth-studio

World-class creative social media content studio, powered by AI.

systemprompt.io reports

io-systemprompt-reports

Paid EU AI Act compliance reports for agents. $1.50 per call via x402 (USDC on Base) or Stripe.

vouch

io-github-notifuturo-vouch

Check if a counterparty is safe to pay: trust/risk score for AI agents. Scam/phishing screen.

x402 Counterparty Score

org-x402score-counterparty-score

Trust scores for x402 sellers: wash-trading, real buyers, verdict. $0.02/score via x402 on Base.

x402-receipt-verifier

io-github-nexus-mcp-infra-x402-receipt-verifier

Audits NEXUS's own x402 payment logs against its own delivery logs and issues a signed proof-of-deli

Agent Commerce Guard

io-github-fxjim-agent-commerce-guard

Policy review and purchase discovery for AI-agent commerce actions.

Beglaubigt

de-beglaubigt-incorporation

Incorporate a German GmbH or UG in chat, then finish and pay on a secure link.

Catalog Attribute Normalizer

com-acjlabs-catalog-normalizer

Catalog attribute normalizer, taxonomy-grounded — no fabricated Google/Shopify category IDs.

Correkt: The AI-Native Online Marketplace for Physical Products

com-correkt-api-server

Correkt: online marketplace built for AI agents. Shop 10M+ physical products from verified sellers.

Estroni Storefront

io-github-estroni-storefront

UCP agentic-commerce proxy for Estroni: merino & low-tox women's activewear catalogue.

Just Domain

ai-justdomain-just-domain

Search domain availability and pricing, straight from chat, then open a link to register.

PDF Generator API

io-github-br0ski777-pdf-generator

Generate PDF from HTML or Markdown with custom pages, margins, layout. x402.

Pepesto Agent-to-Cart

io-github-pepesto-solutions-agent-to-cart-mcp

Turn any shopping list into a ready-to-checkout grocery cart across 26 European supermarkets.

QR Code Generator API

io-github-br0ski777-qr-code

Generate QR codes from text or URLs. Returns base64 PNG. x402 micropayment.

Receipt Extraction

com-acjlabs-receipt-extraction

AU GST/ABN receipt extraction — assigns entertainment/ITC tax codes per line, not just OCR.

URL Safety Validator MCP

io-github-ojaskord-url-safety-validator-mcp

AI URL safety validator: SAFE/SUSPICIOUS/DANGEROUS verdict, trust score, threat intel.

blackwall-x402-guardrail

com-blackwalltier-blackwall-x402-guardrail

Pre-signature x402 payment verdict (GO/HOLD/STOP) for AI agents, with a verifiable signed receipt.

constitution-lint

dev-agentopskit-constitution-lint

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