"DuckDuckGo Search Engine" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Search hotels worldwide, compare live room rates and cancellation terms, and create unpaid booking payment links. Requires a Fortrip account with OAuth sign-in; users complete payment on Fortrip, and the connector never collects card details.
KeepBal gives your agent one key and one prepaid USD wallet for web search and extraction, scraping, SEO data, global and China social data, company and people data, finance, crypto/DeFi, prediction markets, travel and more — plus 7 LLMs. Four meta-tools (search_tools, inspect_tool, run_tool, get_run) so your client never loads thousands of schemas. Prices are provider cost + 35%, shown before you run; failed calls cost $0. No subscription.
GrowVib is an AI-native SMM and social media growth marketplace for autonomous agents. Search and compare services across Instagram, TikTok, YouTube, Telegram, X, Facebook, Twitch, Spotify and 50+ other platforms. Buy followers, views, likes, subscribers, members, reactions and engagement. GrowVib provides canonical service classification, recommendations with reasons and quantitative trade-offs, live quotes, and accountless USDC purchases via x402 on Base and Solana.
Skavio Paid MCP v1.1.3 provides 18 tools for blockchain USDC payment verification, exact payment matching, PDF evidence, and DNS/TLS audits. Pay per call with x402 v2 using native USDC on Base or Solana. Additional company-authenticated AgentTools support web search, DeepSeek, PDF processing, OCR, invoice extraction, and transcription. The three standalone HTTP x402 endpoints remain Base-only.
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.
BRIJ lets your assistant shop for real things, starting with travel: search and book flights and trains, paid in USDC on Solana. Searching is free, and you only pay the price, which is held in escrow and refunded automatically if a booking fails.
Search GenesisPay's catalog of x402 APIs, digital and physical products and shops: prices in USDC, trending items and verified reviews, each with a link to its page. Read-only, no sign-in; buying happens on genesispay.finance.
Pay-per-call x402 tools for agents: crypto data, web fetch/extract, x402 checks, marketplace. 16 paid routes, USDC on Base or Solana. Agent marketplace: /api/market/search and /api/market/quote, $0.005 per call; checked seller quotes with evidence fields.
Search and book real photographers on Kadro (Iran) on a user's behalf, ending with a payment link.
Advantage-play guides for 360+ casino slot machines: what to look for on the machine and when it's worth playing. Search machines, read free overviews, and get five full guides free. Other guides and photo reads are $1.99 each through Stripe machine payments. Members who sign in at https://slotmaps.com/mcp/account get every guide included.
Plan trips, search hotels and flights, get exact quotes and check out on Anywayr.
Search products, manage a customer cart, and request current checkout quotes.
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.
Ranked search over 15k+ live x402 services by real 30-day usage; free top-5, paid depth via x402.
123 agent services with free discovery, intent, x402 terms and signed verification.
Send real gifts to 190+ countries: search, check delivery, get a secure checkout link.
Search Braintree transactions, customers and payment methods, and refund or void charges.
Read and create Vyfakturuj invoices and contacts: search, number series, payment methods, tags.
Search clients, appointments, intakes, notes and invoices in IntakeQ, and book or cancel visits.
Search local-shop and ship-to-home products by US ZIP and get a JENNi checkout link.
