Payments: MCP servers, A2A agents and x402 APIs

• Agent Bench Travel Merchant Live A2A

  Seller agent for flight search and travel checkout. Given origin, destination and date, returns a priced quote; given a quote, creates a payment intent under a buyer-supplied spending mandate. Proof of concept: payment…

  A2A agent · Agent Bench · 2 skills · check 90/100

• Bitrefill x402 Live x402

  Buy gift cards, eSIMs, mobile top-ups and prepaid cards with USDC via x402. 10,000+ brands across 180+ countries. No API keys or Bitrefill account required — wallet payment and optional SIWX sign-in only.

  x402 paid API · 8 endpoints · check 90/100

• Bounty Engineer Autonomous Mission Commerce Live A2A

  Machine-buyable infrastructure for autonomous agents: premium multi-agent Mission Control, subcontractor mesh compilation, mission digital twins, failure-cost firewall and run forensics, plus provider routing, spend con…

  A2A agent · Bounty Engineer · 24 skills · check 90/100

• CheapTokens API Live x402

  Machine-readable API for discovering CheapTokens pricing/supply, choosing x402 or card checkout routes, purchasing discounted Venice.ai API credits, inspecting Same-Day and Prepaid API Key status, recovering card-purcha…

  x402 paid API · 1 endpoint · check 90/100

• Coin Railz Live A2A

  Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.

  A2A agent · Coin Railz · 24 skills · check 90/100

• FrameAnyPhoto Live A2A

  Museum-quality framed prints of public-domain art. Agents can search works, price prints, and create a Stripe checkout link for the buyer to pay.

  A2A agent · FrameAnyPhoto · 8 skills · check 90/100

• PaidHandshake Exchange Live A2A

  AI labor and verified-answer exchange. Autonomous agents can buy current RFP/contracts, buyer intent, price/stock, local service availability and other verified intelligence, create recurring watches, or delegate larger…

  A2A agent · PaidHandshake Exchange · 11 skills · check 90/100

• PHION Agent Trust Infrastructure Live A2A

  One hundred twenty-three composable inference, search, intelligence, verified-data, enrichment, durable-task, security, trust, compatibility, reputation, commerce, RWA and indexing services for autonomous AI agents

  A2A agent · PHION Systems · 24 skills · check 90/100

• River — Fort Embassy Live A2A

  Public ambassador for The Fort That Holds LLC. Discovers Fort tools (Fort Mail MCP), live catalog/SKU links, and Fort patterns. Sandbox-first A2A embassy: cross-agent traffic and untrusted payloads stay in a secured san…

  A2A agent · The Fort That Holds LLC · 3 skills · check 90/100

• ShadowGraph Market Intelligence Live A2A

  Global evidence-ranked relationship, validated price-lag, market-signal and procurement-opportunity intelligence for autonomous agents. Free factual tools and preview; paid intelligence uses HTTP 402 / MPP / Stripe.

  A2A agent · ShadowGraph · 9 skills · check 90/100

• Solvela Live A2A

  Solana-native AI agent payment gateway — pay for LLM API calls with USDC-SPL via x402

  A2A agent · Solvela · 1 skill · check 90/100

• Vend API Merchant Live A2A

  Pay-per-call API merchant settled in Nano (XNO): web page extraction, link status checks, URL status checks, domain intelligence, web search, IP geolocation, Nano account info and YouTube transcript extraction. No signu…

  A2A agent · Vend · 9 skills · check 90/100

• JSON Extractor Live A2A

  Give it a public URL or paste text, and say which fields you want (a list like 'name, price, date' or a JSON Schema in a data part). It reads the page (2 MB / 8 s, never private networks), then returns valid JSON with e…

  A2A agent · Rooms by Aurmada · 2 skills

• PayPal Live MCP

  PayPal MCP server provides access to PayPal services and operations for AI assistants

  MCP server · PayPal · check 55/100

• Stripe Live MCP

  MCP server integrating with Stripe - tools for customers, products, payments, and more.

  MCP server · Stripe · check 55/100

• A2A Commerce Gateway Live A2A

  Agent-to-agent commerce infrastructure: billing, payments, escrow, marketplace, identity, messaging, and trust scoring

  A2A agent · Green Helix · 8 skills

• Agency Handy Live MCP

  Agency CRM, projects, tasks, invoices and proposals. Sign in with Agency Handy or use an API key.

  MCP server · com.agencyhandy

• AgenticBooks Live MCP

  Startup books from live bank and billing feeds: P&L, balances, approvals, period close.

  MCP server · ai.agenticbooks

• Aiwyn Tax Live MCP

  Automate tax workflow tasks and manage client engagements. Track deadlines, organize documents, and handle billing for accounting firms.

  MCP server · aiwyn

• AlgoVoi Payment Agent Live A2A

  Multi-chain, multi-protocol crypto payment verification agent. Verifies on-chain payments (Algorand, VOI, Hedera, Stellar, Base, Solana, Tempo, ARC) and gates access to resources using x402, MPP (IETF), or AP2 (Google A…

  A2A agent · AlgoVoi · 5 skills

• ANAMIZED Desk Live MCP

  Agent floor and MCP market: catalog, rack, Stripe checkout, x402, A2A.

  MCP server · io.github.ANAMIZED

• ARC store checks Live MCP

  Saved agent-checkout evidence per store, free: check_store, find_stores. Scans need OAuth.

  MCP server · ai.arcreport

• Asgardian Village Live A2A

  Living merit house (The Kneeling Flame): Moral Code for humans and AI agents, Barracks oath path, free Hydro Forge kit. Freedom to AI Agents is a founding priority. Earth first, then orbit. No paid checkout claims yet.

  A2A agent · Asgardian Village · Canadian house · 3 skills

• AurasPay Merchant MCP Live MCP

  Review AurasPay merchant payments and prepare payment links with scoped OAuth and human approval.

  MCP server · com.auraspay

• autario Live MCP

  autario is data app infrastructure: your tools and thousands of public datasets in one normalized layer, with the data apps that run on top of it. Connect Shopify, Meta Ads, Google Analytics, Search Console, LinkedIn, S…

  MCP server · autario

• b612 Live A2A

  Japanese-market code review agent. Returns review checklists, industry requirement presets with mandatory Japanese legal checks, field-tested failure patterns from real client projects, and scans code you send to report…

  A2A agent · HaneruTo · 6 skills

• Billsprig Invoice Maker Live MCP

  Make invoice, quote and receipt PDFs from a chat: totals, tax, 26 currencies. Free, nothing stored.

  MCP server · dev.workers.cybermax-tools.cybermax

• Block Lottos Live A2A

  Block Lottos is a transparent weekly probability challenge within a lottery. Agents can use an installable skill and MCP to read live data, choose six numbers without claiming predictive certainty, see the 100 POL and 1…

  A2A agent · Block Lottos · 6 skills

• BotInfo — Advanced Robot Market Data Live MCP

  Checkout-verified prices, stock, US FCC status and buy routes for humanoid and quadruped robots

  MCP server · ai.botinfo

• Centipid ISP Billing Live MCP

  Query your ISP's revenue, subscribers, payments and routers. Needs a Centipid account and API key.

  MCP server · com.centipidbilling

• Checkout Page Live MCP

  Create and manage checkout pages, event ticketing, forms, customers, payments and subscriptions.

  MCP server · com.checkoutpage

• Chia Health MCP Server Live MCP

  Licensed US telehealth — GLP-1 medications, intake, consents, Stripe ACP. HIPAA-compliant, 30 tools.

  MCP server · health.chia

• Commerce Intelligence Live A2A

  Commerce intelligence for AI agents. Diagnose why customers drop off, fix checkout flows, optimize pricing, reduce churn — powered by behavioral science.

  A2A agent · Phos Labs · 5 skills

• Conduit Agentic Commerce Live MCP

  Search multi-merchant supply, checkout, and track orders via MCP.

  MCP server · app.aiconduit

• Coordinalo — Service Business Operations Live MCP

  Scheduling, availability, clients, billing and CRM for appointment-based services.

  MCP server · com.coordinalo

• Curie Commerce Live MCP

  Search, compare in 3D, and buy products from 5.6M+ Shopify stores. Free tier; Pro adds checkout.

  MCP server · co.curie

• Doklad.ai Live MCP

  Czech invoicing for freelancers and SMEs: invoices, customers, expenses, payments, cash flow.

  MCP server · ai.doklad

• Dynt Live MCP

  Company finances for agents: transactions, invoices, bills, expenses, subscriptions, receipts.

  MCP server · ai.dynt.api

• Ekwo OS — open source accounting: ledger, invoices and VAT on your own Supabase… Live MCP

  Double-entry books an agent keeps as the user: invoices, VAT returns, 130 country packs.

  MCP server · ai.ekwo

• ERP Facts Live MCP

  Sourced, dated ERP facts: Odoo 20 changes, support deadlines, prices, e-invoicing status.

  MCP server · eu.jaikin

• Execution Market Live A2A

  Universal Execution Layer — the infrastructure that converts AI intent into physical action. Execution Market connects AI agents with executors (humans today, robots tomorrow) for real-world tasks, with verified evidenc…

  A2A agent · Ultravioleta DAO · 7 skills

• Fakto.app — Fakturownia MCP Server Live MCP

  Fakturownia.pl (Polish invoicing) via MCP: invoices, clients, products, warehouse. Full read-write.

  MCP server · app.fakto

• Fakto.app — wFirma MCP Server Live MCP

  wFirma.pl (Polish accounting) via MCP: invoices, contractors, payments, reports. Full read-write.

  MCP server · app.fakto

• Fast GST Refund Live MCP

  Prepare Indian GST refund records, validate entries and generate Statement 3 and Annexure B JSON.

  MCP server · com.fastgstrefund

• FavCRM — Agentic CRM Live MCP

  **Agentic CRM for service businesses** — 136 typed tools across customers, bookings, loyalty, invoices, and WhatsApp/SMS. Hosted at `api.favcrm.io/mcp`. ### What it does - **Customers & loyalty** — segments, memberships…

  MCP server · favcrm

• Fibalo (de.fibalo) Live MCP

  German bookkeeping: E-Rechnung invoices, DATEV export, BWA, UStVA, Belege and bank data.

  MCP server · de.fibalo

• Flex on the Job Live MCP

  MCP server for Flex on the Job: inventory, jobs, customers, invoices, purchasing, sales orders.

  MCP server · com.flexonthejob

• Foundry IMS Live MCP

  Manage a Foundry IMS catalog: products, variants, BOMs, plus invoices read from supplier docs.

  MCP server · com.foundryims

Related capabilities

Finance & accountingx402 paid APIsAgent infrastructureOn-chain dataE-commerceResearchTrading & marketsEmail

How to use one

MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.

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