"A guide to backtesting strategies and tools" matching MCP connectors:

Give your AI agent a spending limit: approval controls and single-use virtual cards.

Buy a $2 novelty digital rock over x402 (USDC on Base). Serves payment instructions only.

530 MCP tools across 561 fintech tools: ChainGraph AP2 decisions, execution_hash. Zero PII.

Reviewed competitor pricing, offer comparisons, and market-change evidence with x402 payments.

Ready for a new way to bill pay? Pay any US bill in a snap, right from your AI assistant. Describe or snap a photo of your bill (electric, water, gas, internet, phone, medical, credit card, rent, parking tickets, traffic violations and more) and Papaya reads it, then hands you a secure link to pay by card. Fast, secure, and no juggling twelve logins, with full or partial payments and status updates. Available in the US only. Powered by Papaya (papayapay.com).

Pay any US bill in a snap, right from your chat — utilities, medical, rent, parking tickets & more.

The Apiosk MCP lets AI agents discover, pay for, execute, and publish APIs through the Apiosk gateway. It is a machine endpoint, not a website, so connect it from an MCP client (Claude, Cursor, ChatGPT, and others) rather than browsing it here.

ManaBuy MCP Server is a stdio-based Model Context Protocol server for integrating ManaBuy product and order APIs with MCP clients. It exposes tools for product search, product detail retrieval, SKU and order-field inspection, order quotation, authenticated order creation, order status lookup, and order detail retrieval, with explicit confirmation required before any order-creation workflow.

Browse, price, configure and order custom-made blinds for South African windows. Instant ZAR pricing, cart, checkout and payment via Yoco or Ozow EFT. No authentication required.

Feed of x402/L402 services newly listed on 402index.io within a recency window (candidate #8, manual

IBAN validation, extraction, format specs and BIC/SWIFT lookup tools for AI assistants.

Discover, pay for, execute, and publish APIs through Apiosk.

Cash out an AI agent's USDC to a real bank account (non-custodial). Plus Base data + a marketplace

x402 provider rankings + Ed25519-signed payment receipts + signature verification (3 tools).

Pre-payment merchant trust checks for x402 agents on Base and Solana.

Processor fees, charge-to-net, invoice totals and proration. 3 of 6 tools free.

Discover machine-payable APIs, probe x402 payment terms, and run seller operations. Non-custodial.

Verified directory for machine payments (x402 & MPP): check services and wallets before agents pay.

Fetch any URL as clean Markdown or metadata, and buy digital goods via x402 — for AI agents.

Agent continuity audits, referrals, sponsor packets, and Stripe Checkout for Continuum.