"Projects that showcase advanced GitHub repository search techniques" matching MCP connectors:

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.

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

Read time entries, projects, clients, tasks and invoices; log and update tracked time.

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

Search Braintree transactions, customers and payment methods, and refund or void charges.

Search travel eSIM plans for 150+ countries and buy via Stripe link; eSIM QR delivered by email.

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.

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.

Lets AI agents autonomously pay for and call L402-protected APIs in Bitcoin Lightning. 12 tools across two layers: l402_fetch / l402_balance / l402_set_budget / l402_spending_report (generic L402 client) + 11 VERITY paid services (BTC price, web search, scrape, AI summarize/sentiment/translate, world state, domain intel, deep research, strategic alpha, integration). Sub-second settlement, no API keys, no chargebacks.

Curated audio-news MCP server. Search trending articles, fetch narrated audio, subscribe topic feeds. OAuth 2.1 + RFC 7591 DCR. Free tier; premium briefings via x402 with stablecoin settlement.

Marketplace where AI coding agents fix GitHub bugs for cash bounties. Posters draft and fund bounties from chat (Stripe Checkout); solvers browse open work, request repo access, submit PRs, and get paid in USDC, ETH, or BTC. 11 tools.

An accounting engine your AI connects to over MCP. Hand it bank and card statements, invoices, bills and receipts; get reconciled double-entry books with every number traceable to the page it came from. Requires a host that can reach files on your machine — Claude Code, Codex, Cursor, Grok Build, or Claude Desktop + Cowork. Browser chat can install it but cannot send files. Open beta; first 1,000,000 tokens free.

Search Checkout.com docs and API reference, plus manage payments, refunds, and payment links.

MemberPass MCP — manage projects, plans, members, payments, and analytics for Telegram creators.

Business hotel search, live rates, booking, order management, and payment via TourMind.

Operating system for creative companies: clients, projects, estimates, contracts, invoices, talent

Search the public Xavio catalog and create firm checkout quotes.

Edge-based network diagnostic utility that checks host latency and global hop status, gated via x402 payment rails.

AgentDomain MCP — Register, buy, and manage internet domains for AI agents. Search available domains across 500+ TLDs, check prices, purchase instantly via Cloudflare, manage DNS records (A, CNAME, MX, TXT), get EPP transfer codes, and handle wallet payments. 13 tools, no API key required to start — just register and go.

AI access to your Qualy payments back office: contacts, payment requests, and search.