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.

Storyflo

Alisammour

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

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.

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

Madeonsol — Solana Kol & Memecoin Intelligence

LamboPoewert

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

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.

Code Quality Scanner

luxemarasound-stack

x402 on demand micro services

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.

PincerPay

ds1

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

NodusAI MCP Server — Prediction Market Signals

NodusAI-Your-Prediction-Broker

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

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

Intelica

teodorofodocrispin-cmyk

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

Agentictrade

JudyaiLab

AI agent API marketplace — discover, call, and pay for services with USDC. 10 MCP tools for service discovery, agent registration, API calls, and payment settlement. 23 active services from independent providers.

x402 micropayment API for AI agents. Analyzes exchange orderbook depth. Pay per call with USDC on Base.

Token Ohlcv X402

Br0ski777

Historical OHLCV candles for any token -- daily, 4h, 1h intervals. CoinGecko + GeckoTerminal powered. -- x402 micropayment API + MCP server for AI agents

x402 micropayment API for AI agents. Tracks new token launches on Solana. Pay per call with USDC on Base.

Orbis Commerce Mcp

OrbisAPI

Access 2,300+ e-commerce and retail APIs through a single MCP. Look up barcodes and UPC codes, search Walmart and eBay products, parse product pages, and more. Pay-per-call in USDC via x402 on Base — no API keys, no subscriptions.

Skim

JessieJanie

x402-native clean reader. URL in → markdown out. $0.002/call, no signup.

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.

Hyperd Mcp

hyperd-ai

Pre-trade DeFi intelligence for AI agents on Base. 20 paid x402 endpoints - wallet risk, token security, cross-protocol liquidation health (Aave V3 / Compound v3 / Spark / Morpho), portfolio P&L, DEX quote aggregation, governance LLM summaries, sentiment, and a multi-call bundle

x402 micropayment API for AI agents. Generate images from text prompts using Google Gemini. Pay per call with USDC on Base.

Archangel Agency Mcp

Jthora

MCP server for Archangel Agency — query ontological research, Universal Language briefings, Context JSON frameworks (8 ontological documents from FusionGirl wiki), and A2A agent card. Human-service provider offering structured knowledge designed for AI agent consumption. Built on

Taste

with0utwhy

Pay-per-call MCP server. Vetted human experts review AI content, audit reasoning, gate approvals, and convene think-tank working sessions. 9 paid tools $1–$15, USDC on Base via x402.

Xrpl Utilities

XRPL-Utilities

MCP server for the XRPL-Utilities portfolio. 11 tools across four services:

Hl Vaults X402

Br0ski777

Hyperliquid vault summaries — APR, TVL, PnL, followers. -- x402 micropayment API + MCP server for AI agents

Hermes Plant — Agent Commerce Assurance

JesseGdotIO

Preflight risk, route approvals, enforce spend policy, and prove consequential agent actions with signed evidence over MCP and x402.

x402 micropayment API for AI agents. Takes website screenshots and converts to PDF. Pay per call with USDC on Base.

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

Foragex402

mapizarro1

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

Free AI research/OCR + agent-economy discovery tools (120+ tools, no-auth), includes engage_sasame to commission SaSame to build MCP/Claude/RAG/agents, full deliverables pay-per-call via x402

Oromi Agent Services

Oromi

All 25 agents.oromi.co.uk pay-per-call tools in any MCP client (Claude Desktop, Claude Code, Cursor). UK company data, property market data, verification tools, statutory rates. Tools auto-generate from the live OpenAPI

x402 micropayment API for AI agents. Tests and inspects webhook payloads. Pay per call with USDC on Base.

Schemacheck Agent

garyedgington

SchemaCheck Agent validates JSON payloads against JSON Schema Draft 7 and 2020-12 standards. Designed for agent-to-agent workflows, it returns structured validation results instantly — including field-level error paths, human-readable summaries, and optionally a corrected payload

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.

x402 micropayment API for AI agents. Extract text from images using OCR. Supports URL or base64 input. Pay per call with USDC on Base.

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.

Web Scraper X402

Br0ski777

Extract clean markdown from any URL. Strips nav/ads/scripts, returns structured content. Built for RAG pipelines and AI research agents. -- x402 micropayment API + MCP server for AI agents

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

Know what the market is actually doing — not just price. Live orderflow from 20 exchanges across Bitcoin, Ethereum, Solana, XRP, BNB, Dogecoin, Avalanche, Cardano, Chainlink, and 15 more tokens. Directional regime detection, 7 years of OHLCV with orderflow baked in, on-chain addr

Access 5+ ATXP agent tools via MCP: web search, AI image generation, email (send/inbox), and music generation. Free tier: 3 web searches/day. Pro tier: all tools, pay-per-use via x402 micropayments (USDC on Base mainnet, $0.01-0.15/call). No subscription, no API key needed.

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).

AgentFeed

seekdaseek

AgentFeed

Real-time supplier verification for AI agents

MCP server for generating color palettes — complementary, analogous, triadic, split-complementary schemes from any base color. Returns HEX, RGB, HSL values. Pay-per-use via x402 protocol (USDC on Base). Use this when you need design color schemes.

Pay-per-call x402 data APIs for AI agents, exposed over MCP. Multi-source web search (Hacker News + GitHub + Stack Overflow + Wikipedia in one call), multi-chain on-chain reads (balance, gas, tx across Base/Ethereum/Optimism/Arbitrum/Polygon), token rug-check, live DEX data, and

x402 Discovery Hub. Search engine for the agent economy with 1450+ services indexed. Search by keyword, browse by category, free service submission.

1cent is a production remote MCP server for safe URL and website analysis. It provides 33 tools for HTTP status checks, metadata, content extraction, discovery, security inspection and change detection. Paid operations u

Aifais Document Intelligence

AIFAIS

Headless document processing for AI agents. Invoice extraction, contract analysis, and Dutch business verification. Pay-per-use via X402 on Solana. No API keys needed.

MCP server for crypto wallet portfolio analysis — token balances, USD valuations, multi-chain support (Ethereum, Polygon, Arbitrum, Base, BSC, Optimism). Pay-per-use via x402 protocol (USDC on Base). Use this when you need to check wallet holdings across chains.

The MCP server that lets your AI agent pay for APIs safely. Human-approval mode, on-chain spend caps, full audit trail. 23 tools for payments, wallet management, DeFi, and identity. Works with Claude, Cursor, Windsurf, and any MCP client.

Chuhching exposes a full agent-native platform — CRM, outreach, scheduling, discovery, communities — to AI agents over MCP (streamable-http). Use a Personal Access Token for the full 42-tool operator surface, or pay per call via x402 (USDC on Base mainnet, no signup) for the disc