"pre-commit" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth.
Pre-payment merchant trust checks for x402 agents on Base and Solana.
Check x402 endpoints like a paying agent: diagnose, fix plans, pre-payment checks. Free quick check.
Pay less for x402 APIs: free pre-payment checks, cheapest working service finder, web/PDF reader.
Pre-signature x402 payment-risk oracle. AI agents call forecast_payment before paying a counterparty and get a GO / HOLD / STOP verdict from settlement reputation, price-anomaly (quoted vs the payee's own median), and OFAC sanctions screening — plus a third-party-verifiable Ed25519 signed receipt. Verdict only; never takes custody. Free under $10 at risk; returns an x402 payment challenge over that.
22 AI microservices with x402 micropayments: summarize, translate, code-review. USDC on Base.
Keyless hosted MCP: pre-signature x402 payment verdict (GO/HOLD/STOP) with a signed receipt.
MIT research news: science & engineering. $0.01/query. Register in-session — free testnet funds.
German e-invoicing: generate XRechnung 3.0, pre-check and extract (incl. ZUGFeRD PDF). Paid.
Market regime, 7-dimension risk vectors and payment hazard grades. Abstains when data is thin.
Prefeitura PE Recife: NFS-e (Nota Fiscal Eletrônica de Serviços), official-source lookup. Platform-h
Exact lease finance calculations: equipment structuring, solvers, amortization, auto lease & loan
Read-only discovery for exact-commit Agent Skill validation, x402 payment, and signed receipts.
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.
AI-native ZATCA e-invoicing for Saudi Arabia. Create invoices, issue credit notes, check ZATCA compliance status, and diagnose invoice errors through natural language — from AI solutions or any MCP client. Connect with your own Saudi VAT Pro account (OAuth)
12 utility endpoints for AI agents (QR codes,screenshots, scraping, AI summarization). Two payment rails: pre-paid Bearer credits via NowPayments or x402 USDC pay-per-call on Base mainnet.
Colombia payments for AI agents — PSE / Nequi via Mercado Pago. Never holds funds.
Pre-payment checks for AI agents: x402 quotes, untrusted prompts and audit receipts.
Signed attestations for agents, $0.01/call via x402: URL witness, AI permission, tx finality, JWKS.
