Fizzl Buy
Server Details
Say what your agent needs: Fizzl buys the right paid x402 API, checks the answer. Free pick.
- Status
- Healthy
- Uptime
- 100.0% over the last 24 hours
- Last Tested
- Transport
- Streamable HTTP · MCP 2025-11-25
- URL
- Repository
- Fizzl13/x402-doctor
- GitHub Stars
- 1
- ChatGPT
- –
- Claude
- –
TDQS
Scored across 3 tools
The three tools have clearly separable roles: feedback is for reporting issues to humans, x402_pick is the free preview/discovery call, and x402_buy is the paid execution call. The pick/buy pair shares a lot of description text and could momentarily blur, but the free-vs-paid distinction is stated explicitly in both.
x402_pick and x402_buy form a clean prefix+verb pattern that makes the pair obvious. feedback breaks the convention (bare noun, no prefix), a minor deviation in an otherwise tiny and readable set.
Three tools is lean but each earns its place: one discovery call, one paid execution call, one human feedback channel. No filler tools, though the surface is small enough that some adjacent capabilities (history, receipts) are absent rather than consolidated.
The core lifecycle (preview what will be bought, buy it, report problems) is covered, but there is no way to retrieve past purchases or receipts, check wallet/balance state, or browse sellers without specifying a need. Agents that want to verify or audit a prior transaction hit a dead end.
Available Tools
3 toolsfeedbackSend feedback (free)AInspect
Report a bug, a missing feature or anything else about this service, in a structured way. Free. A person reads every report; nothing is run or changed automatically.
Inputs: message (required), type, contact, payment, +1 more. Returns: id, note, type, service, +1 more
x402_buyBuy what your agent needs ($0.02)AInspect
Paid ($0.02 via x402 in USDC on Base, Solana, Algorand, Stellar, Monad, Polygon, Arbitrum or Avalanche, or RLUSD on the XRP Ledger, or USD₮0 on X Layer, inside the call): say what your agent needs ("weather forecast for Amsterdam tomorrow", "BTC price", "EUR to USD rate") and Fizzl buys the right paid x402 API, the one x402 Doctor has seen paying out day after day at a fair price (up to $0.01), fills in its input, pays it from its own wallet and returns the answer, checked by TypeSafe Jev, with which service it came from and a signed receipt. Nothing is charged when no seller delivers. To see first what it would buy, call x402_pick (free).
Inputs: need (required). Returns: need, tried, answer, accepts, +6 more
x402_pickWhich paid API to buy (free)ARead-onlyInspect
Free: say what your agent needs and get the paid x402 API that x402 Doctor has seen paying out day after day at a fair price (up to $0.01), with its track record, price and example input (example_in: "query" for URL parameters, "body" for a JSON body), plus alternatives. To buy it in one call, POST https://buy.fizzl.eu/v1/buy {"need": …} ($0.02 over x402): the answer comes back checked, and nothing is charged when no service delivers. Limited to 10 free calls an hour.
Inputs: need (required). Returns: buy, need, note, pick, +1 more
Tool Schema Changelog
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Related MCP Connectors
Let your AI agent pay for APIs and data without handing it your money. In ChatGPT, Claude or Grok, the agent finds paid x402 APIs (with each seller's payout record from x402 Doctor) and asks to pay; you approve and sign each payment in your own wallet: MetaMask or Coinbase Wallet (USDC on Base), Phantom (USDC on Solana) or Xaman (RLUSD on the XRP Ledger). Fizzl checks every payment before you sign and every paid answer for hidden instructions. Fizzl never holds your keys. Free to start.
Find and live-check the paid x402 API for an agent task, ranked by real 30-day payers and price.
x402-paid agent tools: 18 over HTTP, 14 over stdio. USDC per call, no API key.
x402 pay-per-call APIs for agents: web search, wallet/token checks, text structuring.
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