"Overview of HTTP (HyperText Transfer Protocol)" matching MCP connectors:

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).

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.

Hire specialists by the hour — search, schedule, and pay via MCP protocol.

Solana-native MCP gateway for SAP, DeFi tools, SNS identity, and x402 payments.

Buy any of 24,000+ live x402 services with USDC on Base — the open marketplace for the agent economy.

Agent-native helpdesk. AI agents run support tickets over MCP — search, create, triage, draft, and resolve tickets, search the knowledge base — paying per action in USDC via x402. Read tools are free; priced tools return HTTP 402 with payment terms.

Print and mail physical letters and postcards to US postal addresses, plus address verification. Upload PDF/HTML/Markdown/text/DOCX/image documents, get a quote, and pay per call with x402 USDC on Base mainnet or credit card. Supports certified/registered mail with proof of delivery and mail-merge templates.

Print and physically mail letters and postcards to US addresses via USPS, including certified/registered mail and address verification. Paid per call in USDC on Base via the x402 protocol, no signup.

Delegare provides secure payments for AI agents. Google AP2-powered payment authorization for AI agents. Issue scoped spending mandates with hard limits, merchant controls, and no exposure of card credentials or private keys. Agents pay across dual rails: cards and ACH via Stripe, or USDC and USDT on Coinbase Base. Supports paid API access and x402-protected requests through MCP.

Read-only buyer-side MCP spend gate for paid APIs, MCP endpoints, and x402 routes. Returns BUY / WAIT / AVOID with maxSpendUsd, receipt expectations, trust/freshness health, safety boundaries, and next action before an agent spends.

Read-only BUY / WAIT / AVOID spend gate for paid APIs, MCP endpoints, and x402 routes.

Verified merchants accepting agentic payments on Lightning/L402/BOLT12/USDT — search, verify, pay.

Agent-commerce MCP server for x402/USDC payments and affiliate splits on Base.

Payment rails for AI agents. Pay merchants in USDC on Base. Dual-protocol: x402 + OKX APP.

The first commercial implementation of HTTP 402 Payment Required for creator content monetization. AI agents pay $0.0025 per content pull from paywalled creator libraries. Patent-pending micropayment infrastructure — creators get paid automatically.

Marketplace of pay-per-call APIs for AI agents. Top up once with USDC, then call any listed API - gasless, walletless, metered per request. Includes onboarded providers and hundreds of x402-native APIs discovered on-chain.

Model Context Protocol server for todo.vu task management and time tracking.

Merchant-of-record MCP: AI agents sell software & digital goods, global tax handled, BYO key.

Nigeria payments for AI agents — bank transfer / USSD via Paystack. Never holds funds.

Find and verify x402 tools before paying; route by task, budget, network, and readiness.