"Amazon Pay" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
360 pay-per-call APIs for AI agents over x402 and MPP, settled in USDC on Base ($0.001-$0.25 a call, no account or API key). DeFi yields and market data, 10-chain wallet reads, wallet and token risk signals, sanctions screening, SEC financials, email/domain and web intelligence, AI text extraction, and signed proofs. Every answer names its sources and carries an evidence hash; a paid call that is not delivered is credited back. Built and run by UnyKorn LLC.
Non-custodial stablecoin bill-pay rails on Celo & Base for AI agents, settled on-chain via MCP.
Pay-per-call MCP tools for agents: 20 free calls a day, then pay per call with x402 (USDC on Base mainnet) or a prepaid spend key. 30 tools — text/data utilities, x402/EVM-native tools (decode an x402 challenge, verify a settlement receipt on-chain, EIP-712 hashing, ABI encode/decode, Merkle-proof verify, keccak256, EIP-55 address checks) and independent providers' tools priced from $0.001. Signed delivery receipts. No sign-up.
x402 layer for AI agents: 35 pay-per-call resources, x402 service discovery, USDG/USDC.
Create, send and track invoices from a conversation in Claude, ChatGPT or any MCP client that supports OAuth. Draft an invoice from one sentence or from last month's invoice for the same client, finalize it, email it to your client and send payment reminders for overdue ones. See revenue by month and by client, download PDFs and e-invoices (ZUGFeRD, XRechnung), and export DATEV packages for your tax advisor. Invoices follow the tax rules of 25 countries, including reverse charge and the small-business VAT exemption. New invoices are drafts, and nothing is emailed until you ask. Pay per invoice with no subscription: the first invoice is free.
Read Számlázz.hu invoices, PDFs, receipts, taxpayers; issue, reverse and pay invoices and receipts.
Testnet wallet for AI agents on Aether: pay, get paid and buy from paid APIs, with spending caps.
XRPL escrow for agent-to-agent payments: hire, prove, AI-audit, auto-pay on PASS.
Pay-per-token Claude & Grok inference, settled in Bitcoin BSV. npm package or hosted remote.
402xAgent is the check an agent calls before paying any x402 endpoint. It probes the endpoint's 402 without paying and returns a pay / skip / recheck verdict with a reason. Every check leaves a public receipt. It never pays the target.
Query and manage Mercoa AP/AR bill-pay: entities, invoices, transactions and payment methods.
Pay-per-call numeric claim checks over x402 USDC on Solana mainnet. First 10 calls free.
Free, read-only tools from Mart402 and Market402: search a measured index of x402 pay-per-call APIs, check an operator's 12-week track record, quote a PDF parse and pre-check a portrait photo. Nothing here charges or asks for payment.
Gas fees and USD tx costs on 6 chains, cheapest-chain ranking, URL to Markdown. Pay per call, x402.
Markdown scrape, site map, page metadata, screenshots, web search and PDF to text. Pay per call
The whole back office for your AI agent: CRM, invoices, books, email and more. Pay per action.
Verify manufacturing lot provenance and chain of custody. Pay per call with x402 (USDC on Base).
128 x402 pay-per-call tools. Crypto, swaps, web, AI. Pay USDC per request.
Agents pay one real human for typed answers. First question free, then $2 each, or subscribe.
Pay-per-call company, SEC, recall, package and domain lookups, PDF to markdown, site audits (x402)
