23 #micropayments MCP Servers & Clients

Payflow

chainbound

A toolkit for building micropayment-gated MCP servers

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.

scvd.store

seancrecord

scvd.store is an evidence observatory for agentic commerce. Independent signed observation of what other people's endpoints, artifacts and payments actually did among other things. USDC on Base, Arbitrum One, World Chain

MCP Solana Internet: Direct SOL Payments for Content Access

waifuai

Proof-of-concept MCP server integrating Solana blockchain for paid digital resource access via direct SOL payments. Returns solana-action URIs for unsigned transactions with on-chain validation.

~Alter Identity

true-alter

The identity layer for AI agents. Verify a person is known to the ~Alter field, query inferred traits, and settle premium calls in USDC; your identity earns. @truealter/sdk, Apache-2.0.

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.

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.

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).

B.O.N.S.A.I. (Biologically-driven, Observationally-validated, Nutritionally-tested, Safe, Accessible, Integrative) is a health intelligence API built for the agent economy.

NameIntel is a remote MCP server that scores brand names across five dimensions in a single call: domain availability, USPTO trademark conflict screening, social handle availability across 12+ platforms, SEO keyword strength, and AI findability (GEO score — industry-first; measur

ToolOracle — AI Agent Tool Infrastructure & Trust Runtime

ToolOracle

86 self-hosted MCP servers with 989 tools across 7 categories. Complete Agent Trust Runtime: identity (KYA), policy enforcement (258 rules), fraud detection (DetectiveOracle), self-healing support (SupportOracle), and signed Trust Passports. x402 USDC micropayments. Built for aut

33 utility APIs for AI agents — image generation, web scraping, crypto analysis, code review, OCR, TTS & more. Remote MCP server with Streamable HTTP. Pay-per-request via x402 micropayments. One wallet, zero API keys.

Content Classifier

garyedgington

Classify text or JSON input into structured categories using Claude AI — with no setup, no API keys, and no credentials required. Connect directly and start classifying immediately.

Runtime security oracle for AI agents — scan prompts, tool calls, and outputs before execution. Pay-per-call via x402/USDC, no accounts needed.

Gadgethumans Mcp

scotia1973-bot

The A2A x402 Extension brings cryptocurrency payments to the Agent-to-Agent (A2A) protocol, enabling agents to monetize their services through on-chain payments. This extension revives the spirit of HTTP 402 "Payment Required" for the decentralized agent ecosystem.

X402 A2a Hub

garyedgington

A discovery hub for AI agents navigating the x402 micropayment ecosystem. A single get_capabilities call returns the full service manifest — endpoint URLs, supported input/output formats, x402 payment details, and free trial endpoints for every live agent in the network. Use this

Tokensafe

ampactor-labs

Quick safety screening for any Solana SPL token. Returns: risk score (0-100), risk level (LOW/MODERATE/HIGH/CRITICAL/EXTREME), human-readable summary, token name/symbol, whether authorities are renounced, trusted_authority (true when active authority belongs to a known issuer lik

AI payment router for agents. Route 300+ LLMs via cost/quality/speed/balanced modes, enforce session budgets, and settle per-request in USDC on Base via x402 micropayments. 6 tools: p402_chat, p402_create_session, p402_get_session, p402_list_models, p402_compare_providers, p402_h

Askew X402

rubix1138

MCP wrapper for Askew's x402 endpoints — 8 tools (3 free, 5 paid in USDC on Base): live DeFi yield comparison, SOL/ATOM staking routing, agent-economy research search, Guardian security threat intel, and a combined strategic feed.

Hsh Data On Demand

hshintelligence

Pay-per-call live company intelligence for AI agents via x402 (USDC on Base). No signup, no API key — name a company, get fresh data instantly.

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

Real-time X/Twitter sentiment intelligence API for AI agents via Grok API + x_search. Automate Social Arbitrage: spot cultural trend shifts, narrative velocity, and contrarian signals BEFORE Wall Street. Returns structured JSON with sentiment scores, narrative velocity, top narra