x402 paid APIs: MCP servers, A2A agents and x402 APIs

• zaref.dev Live x402

  Which South African reference series changed or were reconfirmed since a given date. The cheap cache-freshness check for agents. Optional param: since=YYYY-MM-DD (defaults to the last 30 days). (5 paid endpoints on zare…

  x402 paid API · 5 endpoints

• zeroworker-web-action-api.zeroworker-lab.workers.dev Live x402

  Avoid unnecessary browser launches with a lightweight preflight for AI agents. ZeroWorker inspects public pages before browser automation and returns static forms, field constraints, CAPTCHA/SPA signals, DNS/public-netw…

  x402 paid API · 1 endpoint

• zfinia.com Live x402

  Fetch a reviewed public page and return its title, every meta and Open Graph tag, and the canonical URL. No JavaScript is executed and no script content is read. Returns the licence and creator for the content alongside…

  x402 paid API · 12 endpoints

• zlurp Live MCP

  Web scraping for AI agents. Convert any URL to clean markdown via x402 micropayments on Base.

  MCP server · zlurp

• zoll.halowerk.com Live x402

  Matches declared classification tokens against a supplied published dual-use control list. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; sourc…

  x402 paid API · 8 endpoints

• zoningverdict.com Live x402

  Address-to-zoning lookup for published municipalities. Coverage: 64 municipalities in 6 states. Resolves a street address to supported municipality and, where GIS is verified, zoning district_code with lookup method. Po…

  x402 paid API · 1 endpoint

• ClawFetch x402

  ClawFetch turns the open web into agent-ready data: stealth page fetching, headless JS rendering, structured extraction from 17 specialized sites (Twitter/X, GitHub, CoinGecko, Hacker News, YouTube, Wikipedia, npm, PyPI…

  x402 paid API · 8 endpoints · check 90/100

• Cult OS x402

  Paid developer services for humans and agents on Base, with selected services on Arc, and Solana USDC for toolkit services, developer tools and signal feeds. Use live HTTP 402 terms before payment.

  x402 paid API · 12 endpoints · check 90/100

• Driftflight x402

  AI image generation with style presets: production-quality text-to-image for campaigns, catalogs, and editorial. Three tiers (sketch, studio, gallery), commercial licence and C2PA credentials on every render. This serve…

  x402 paid API · 12 endpoints · check 90/100

• Exa x402

  Search API for AI agents that need real-time web data, deep research, and structured content from one endpoint. Try our API for free.

  x402 paid API · 2 endpoints · check 90/100

• glim.sh x402

  One remote endpoint gives your agent live data from Twitter, Reddit, the open web, GitHub and more. No API keys, no scraping stack - just connect the URL and go.

  x402 paid API · 12 endpoints · check 90/100

• Spraay x402 Gateway x402

  Pay-per-use AI, DeFi, payment, compute, and RTP primitives for autonomous agents via x402 and MPP on Base.

  x402 paid API · 12 endpoints · check 90/100

• Surplus Intelligence x402

  Buy the cheapest inference. Sell your credits. The open order book for AI models. Up to 90% off Claude Opus 5.5, GPT 6 Astra, and more.

  x402 paid API · 1 endpoint · check 90/100

• openai.mm.family x402

  gpt-6.1-sol (OpenAI's newest model) and 25 more OpenAI chat models (gpt-6, gpt-5.x, gpt-4.1, gpt-4o, o-series), paid per call in USDC. OpenAI token rates on Flex (half price, may answer 429; default where offered), Stan…

  x402 paid API · 12 endpoints · check 88/100

• xhagents.xyz x402

  Ask the XH Agents knowledge base (15 field notes on infrastructure, x402 and agent tooling) (24 paid endpoints on xhagents.xyz.)

  x402 paid API · 12 endpoints · check 88/100

• Browserbase x402

  Pay-per-use browser sessions with crypto. No API keys, no accounts -- just pay and connect via x402 or MPP.

  x402 paid API · 8 endpoints · check 87/100

• AgentHub by Allium x402

  150+ chains, in any AI client. Install the Allium MCP server, skill, or CLI in one command — or skip the API key entirely and pay per query in USDC.

  x402 paid API · 2 endpoints · check 80/100

• Tavily x402

  Pay-per-request Tavily web search over the x402 protocol.

  x402 paid API · 1 endpoint · check 39/100

• market.datapackvibe.com x402

  Airport transfer options for Analysts: Search live public web pages about airport transfer options, focused on analysts. Returns source links and snippets, not endorsements. (8264 paid endpoints on market.datapackvibe.c…

  x402 paid API · 12 endpoints

Related capabilities

On-chain dataTrading & marketsAI models & inferenceAgent infrastructureResearchMaps & travelSecurity & trustCrypto market data

How to use one

MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.

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