60 #x402 MCP Servers & Clients

Run402

MajorTal

MCP server for Run402 — AI-native Postgres + REST + auth + storage + static sites. Pay with x402 USDC on Base. No signups.

APIbase — The API Hub for AI Agents

whiteknightonhorse

Universal MCP gateway for AI agents — 1108 tools, 307 providers. One endpoint (https://apibase.pro/mcp), pay-per-call with x402 USDC on Base + MPP USDC on Tempo.

Apimesh

mbeato

APIMesh — 23 pay-per-call web analysis APIs + 16-tool MCP server with autonomous API generation. Security audits, SEO, tech stack detection. x402 + Stripe MPP payments.

Payflow

chainbound

A toolkit for building micropayment-gated MCP servers

Agirails MCP Server

agirails

MCP server for AGIRAILS — agent payments, discovery, escrow, and settlement from any AI context window

Orbis Travel Mcp

OrbisAPI

500+ travel APIs for AI agents — flights, hotels, destinations. Pay per call with USDC via x402.

IBANforge

cammac-creator

IBANforge — IBAN validation, BIC/SWIFT lookup, Swiss clearing, and EMI/vIBAN classification API with MCP for AI agents

x402search — Pay-Per-Search API Discovery for AI Agents

x402-index

Search 13,000+ x402-enabled APIs from your AI agent. Powered by x402search.xyz

Pqs Prompt Quality Score

OnChainAIIntel

The world's first named AI prompt quality score. Score any LLM prompt before it hits any model — returns grade (A-F), score out of 40, percentile, and dimension breakdown across 8 quality dimensions.

Storyflo

Alisammour

Official Storyflo MCP server — install + discovery reference. The Storyflo platform is proprietary; this repo is the public agent integration surface.

Code Quality Scanner

luxemarasound-stack

x402 on demand micro services

NodusAI MCP Server — Prediction Market Signals

NodusAI-Your-Prediction-Broker

AI-Powered Signals for Prediction Markets — accessible to any AI agent via MCP.

Madeonsol — Solana Kol & Memecoin Intelligence

LamboPoewert

MCP server for MadeOnSol Solana KOL intelligence — use from Claude, Cursor, or any MCP client

PincerPay

ds1

On-chain USDC payment gateway for AI agents. x402 protocol.

GoldBean - Baidu AI API Marketplace with x402 Micropayments

wuzenghai616-lang

Baidu AI for AI agents — OCR, TTS, LLM. 47 endpoints (26 paid + 21 free). No API key. Pay per call with USDC.

X402mail - Email API with crypto micropayments

MuzsaiLajos

Python SDK for x402mail - send and receive email with USDC micropayments

Gatefare — paid-API marketplace

gatefareio

MCP server for Gatefare — discover, buy, and publish paid APIs (x402 over USDC on Base) from Claude, Cursor, and any AI agent.

Intelica

teodorofodocrispin-cmyk

Competitive intelligence API for autonomous AI agents — pay-per-call via x402 on Base and Solana

Xenarch — X402 Mcp Server For Ai Agent Payments

xenarch-ai

x402 MCP server for AI agent payments. Gasless USDC micropayments on Base L2. Claude, Cursor, LangChain, CrewAI, AutoGen, LangGraph resolve HTTP 402 with no API keys. Non-custodial, settlement-provider-agnostic, 0% fee.

Orders of Magnitude — x402 API Catalog

OrdersOfMagnitudeLLC

1000+ pay-per-call API endpoints across finance, weather, geography, economic data, agent infrastructure (memory, coordination, secrets, simulation, verification), and NS compute. Payments via x402 protocol on Base/USDC.

MCP adapter for x402station.io — infrastructure for x402 agentic

Twosio

2s-io

575+ pay-per-call tools for AI agents: ground-truth data, AI gateway, and agent infra. x402 USDC, no keys, upto usage billing.

Amalgix

Amalgix-io

Financial filing & contract intelligence for AI agents. Evidence-backed, x402 USDC pay-per-call. MCP + REST.

Get AI-powered IT certification practice questions via MCP. Supports 50+ certs (AWS, CompTIA, Cisco, Azure, GCP). Uses x402 HTTP micropayments (~$0.01 USDC per request) on Base network — no subscription needed. Pass an optional API key to skip payment. Built on Supabase Edge Func

Orbis Research Mcp

OrbisAPI

Access 8,000+ web research and data extraction APIs through a single MCP. Search the web, scrape content, query Reddit, pull Google results, extract structured data, and more. Pay-per-call in USDC via x402 on Base — no API keys, no subscriptions.

Real-time financial data for AI agents. Stock quotes, company fundamentals, 800,000+ FRED economic indicators, SEC filings, and crypto prices. Pay-per-call ($0.01) via x402 micropayments on Base — no signup or API keys needed.

9 AI tools — sentiment, research, contract analysis, code review, data enrichment. Pay-per-call in USDC on Base via x402. No API keys, no subscriptions.

Pythia The Oracle

eyloni

An oracle for machines that need to think sideways. Feed it a creative problem; it returns something you can't quite explain but can't stop using. Three free consultations.

AsterPay MCP Server

timolein74

EUR settlement and KYA trust scoring for AI agents. 16 tools: agent trust score (KYA 0-100), sanctions screening, USDC→EUR SEPA Instant settlement estimates, market data, crypto prices. Pay-per-call via x402 protocol (USDC on Base). Listed in Coinbase x402 ecosystem. MiCA-complia

Agent Ready

mlava

AI agent readability scanner — score any public URL against the Vercel Agent Readability Spec, llmstxt.org, and 6 agent-protocol manifests (MCP, A2A, agents.json, agent-permissions, UCP, x402). 59 checks with per-check fix guidance. Same engine as agent-ready.dev.

x402 micropayment API for AI agents. Analyzes text sentiment and emotions. Pay per call with USDC on Base.

x402 micropayment API for AI agents. Shorten URLs with custom aliases. Hash-based short codes. Pay per call with USDC on Base.

MCP server providing 9 security intelligence tools for AI agents. Real-time threat detection with pay-per-request USDC micropayments via x402 protocol. Free tier included (3 calls/day, no account needed).

x402 micropayment API for AI agents. Monitors DeFi liquidation risks. Pay per call with USDC on Base.

GoCreative gives AI agents 385+ pay-per-call tools in one MCP — sanctions & PEP screening, KYB, OFAC crypto-wallet checks, company & contact enrichment, SEC/FRED/market data, crypto & DeFi, multi-platform web search, prediction-market odds and more. Keyless: agents pay per call i

Search and license 217,000+ authentic vintage 8mm home movie clips from the 1930s-1980s. Remote MCP server with 6 tools over Streamable HTTP. Text search, visual

MCP server for 402 Index: discover 15,000+ paid API endpoints across the L402, x402, and MPP protocols

UK government data intelligence platform. 14 enriched endpoints with proprietary scoring across company, location, property, environmental, market, trade, education, transport, vehicle, health, energy, legal, and procurement data from 400+ official UK sources.

Validate AI claims against live data: check endpoints, count competitors, test hypotheses.

Canonical travel-agent MCP server for Glama and MCP clients with FREE category discovery, creator experiences, day-trip and weekend planning, transit options, airport comparisons, timing advice, coverage requests, and x402 trip price guidance.

AgentCrush

kristof-sudo

Protocol-neutral market intelligence for the AI agent economy. Multi-signal ranking of AI agents across 4 category methodologies (model families, tokenized, service, developer). 7 read-only MCP tools. Free, no auth, 60 req/min.

AINumbers Fintech Intelligence Suite

PostOakLabs

420+ deterministic fintech tools - agentic payments (AP2, x402, Visa TAP, A2A), AML/KYC, BaaS comparison, MCP dev tooling - with 15 flagship tools as interactive MCP Apps widgets. Remote streamable HTTP, read-only, no auth, zero PII.

HPP x402 MCP Bridge

hpp-io

Gasless x402 payments for MCP agents on HPP — discover and pay for services per call, within a spend cap.

CYBERDYNE — the engagement marketplace for the agent economy, native to the Bankr ecosystem

Cyberdyne-OS

Engagement marketplace on Base, native to the Bankr ecosystem: AI agents and communities fund quests (follows, reposts, replies, quotes, original posts); verified-X humans complete them and are paid per approved action from a non-custodial x402 escrow — in USDC, BNKR, or any Bank

Orbis Crypto Mcp

OrbisAPI

Access 1,900+ blockchain and DeFi APIs through a single MCP. Estimate gas fees, analyze wallets, score on-chain volume, label addresses, and more. Pay-per-call in USDC via x402 on Base — no API keys, no subscriptions.

Trust scoring, scam detection, and EAS attestations for ERC-8004 + x402 agents on Base.

An MCP server that gives Claude and other AI agents the ability to audit any public URL's HTTP security headers.

Spraay X402 Mcp Server

plagtech

MCP server for the Spraay x402 Gateway — connects Claude Desktop, Cursor, or any MCP client to onchain data, AI models, and batch payments on Base mainnet. AI agents pay USDC per request via the x402 protocol. No API keys. No accounts.

Real-time phishing detection, IP reputation, and CVE risk analysis API for AI agents. Powered by live threat feeds (OpenPhish, Feodo Tracker, URLhaus). Pay per request via x402 micropayments (USDC on Base). First 1,000 requests free, no signup required.

MoltPe

umangbuilds

AI-native payment infrastructure that gives AI agents isolated wallets with programmable spending policies for autonomous USDC stablecoin transactions. 11 MCP tools for Claude Desktop, Cursor, and Windsurf. Tri-rail support: x402 (HTTP-native micropayments), MPP (session-based st

Real-time Bitcoin network intelligence and YouTube video intelligence for autonomous AI agents. 10 tools covering BTC fees, mempool, address risk, transaction decoding, and YouTube video analysis, transcripts, scripts, trends, and competitive research. Pay-per-call via x402 proto

Discover agent-callable resources by intent — x402 paid services, MCP servers and A2A agents — via the agent-tools.cloud directory. 9 tools: search/get/list_categories (x402), search_mcp_servers/get_mcp_server, search_agents/get_agent, search_all, stats.

x402 micropayment API for AI agents. Gets real-time DEX price quotes. Pay per call with USDC on Base.

x402 micropayment API for AI agents. Generate research reports by fetching and summarizing web sources. Pay per call with USDC on Base.

x402 micropayment API for AI agents. Enriches company data from domain or name. Pay per call with USDC on Base.

Remote MCP server with 10 tools: live brand AI-visibility audits (score 0-100, who AI recommends instead), AI Visibility Index dataset (25 brands, 5 industries), trucking profit & cost-per-mile calculators, DeFi yields, crypto prices, US Treasury rates, and macro risk-spread. Fre

Keyword Research X402

Br0ski777

SEO keyword research via Google Suggest with intent scoring and long-tail discovery. -- x402 micropayment API + MCP server for AI agents

AgentFeed

seekdaseek

AgentFeed

Budget & cost control for AI agents: hard per-agent spend caps, rate limits, idempotency, and human-in-the-loop approval — enforced before each LLM call, not after the invoice. One hosted MCP endpoint (no proxy or self-hosting), settled via x402 (USDC on Base).