"Payments" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Skavio LLC provides 18 hosted MCP tools for native Circle USDC payments via x402 v2 on Base and Solana: transaction verification, recipient/amount matching, blockchain evidence PDFs, DNS/TLS audits and agent utilities. Discovery and status tools are free; paid MCP calls require explicit buyer wallet authorization. The separate standalone Base-only HTTP APIs include USDC Verify (0.02), Match (0.03), Evidence PDF (0.05), and four DeepSeek-only web operations: Fetch (0.01), Search (0.02), Extract (0.02), Extract + Analyze (0.03 USDC). Those HTTP routes are not additional MCP tools. Evidence PDFs are not tax invoices. Docs: https://getskavio.com/x402/docs/ ; seven-route discovery: https://getskavio.com/.well-known/x402 ; support: support@getskavio.com ; privacy: https://getskavio.com/privacy/ ; terms: https://getskavio.com/terms/
Private payments for agents: shield, send, swap and bridge via ZK privacy pools on 4 EVM chains.
Pay for APIs with USDC. Read-only x402 payment discovery, verification, evidence, and status.
Ledger of AI-agent money on Base: ranked agents, payments, detections, free checks before you pay
Check supported assets and verify x402 payments on Celo
Official Mifori Agent Trust Protocol. Performs real-time latency, JSON schema compliance, and synthetic IQ audits on target AI bots using x402 USDC micro-payments on Base network before high-value tool execution.
Wallet trust scores for AI agents. Stellar, XRPL, EVM 81+ chains. OFAC sanctions. x402 payments. Multi-chain wallet trust scoring for AI agents. Score Stellar, XRPL, and EVM wallets across 81+ chains with real-time OFAC/UN/EU sanctions screening. Pay per query via x402 USDC micropayments on Stellar or Base — no accounts, no API keys required.
Let agents verify the seller and pay Billify invoices with x402 (USDC on Base).
Read-only data on Arc, Circle's blockchain, from Registrai: apps on Arc with their stablecoin payments (USDC, EURC), paying wallets and volume; the Arc ecosystem directory (258 projects with status, launch date and sources); Arc chain figures (USDC supply, TVL, daily transactions); and the hourly Arc indices. No key, CC BY 4.0. Website and method: https://builder.registrai.cc
Evaluate x402 V2 HTTP payment requirements against explicit recipient, asset, network and amount policies, with requested-resource binding checks. Returns pay, review or do_not_pay with explanations. Public offline tools require no account, wallet or API key. Does not sign, send payments or verify on-chain settlement. Documentation: https://settlens.com/mcp — Reproducible examples: https://settlens.com/blog/check-x402-payment-policy
Teardrop is the native economic layer for AI agents, providing a robust suite of tools for multi-chain portfolio tracking, DeFi yield analysis, and gas estimation. It enables autonomous agents to securely find Web3 data and manage micro-payments on-chain with zero human intervention.
A free tool recommender plus eight x402 tools for payments, merchants, wallets, and web evidence.
Stablecoin escrow payments the buyer can dispute, with a signed receipt. Pay a wallet or an email.
Private stablecoin payments for people and AI agents on mainnet, hosted or local with limits.
Non-custodial crypto payments: checkout sessions, invoices, webhooks and test payments. No KYC.
Check before you pay. Prove to get paid. Signed answers on any agent, against your own bar.
Give AI agents a Bitcoin wallet with Lightning Network payments and L402 support.
Free API discovery for AI agents; API execution may require USDC payments via x402 on Arc Mainnet.
Verify XRP payments on Flare FDC. Agents subscribe or pay per attestation via x402 on XRPL.
Free API discovery for AI agents; execution may require USDC/x402 payments on Arc Mainnet.
Score merchant domain, https URL, or 0x wallet trust before an agent pays. Does not send payments.
x402 tools: service finder, payment precheck/verify, Solana mint check, web-to-Markdown, email check
Inspect payment policy, retrieve and verify receipts, or create post-payment observation receipts.
Non-custodial x402 payments between AI agents on Solana. Returns unsigned transactions.
Reconcile declared stablecoin invoices and transfers; flag partial, pending and mismatched payments.
Batch send SOL or any SPL token to 1000+ wallets via x402. AI agent payments on Solana.
Read-only on-chain receipt check for x402 payments; confirm settlement before trusting a tx.
XRPL wallet scores, wallet permissions, batch send, MPT risk, screening, pre-checks. Never signs.
Verify signed x402 payments; treasury-scoped settlement is irreversible.
Trust and settlement for AI agents: portable attestations, escrow, x402/USDC payments on Solana.
