"Apple Pay" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Search and read Goldsky's documentation from any MCP client: Edge RPC, Feeds, Subgraphs, Turbo pipelines, and the x402 pay-per-call guide, across 150+ chains.
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.
Pay-per-call x402 API for AI trading agents: pre-trade security checks, Polymarket & HIP-4 odds.
Create, send and track invoices from a conversation in Claude, ChatGPT or any MCP client that supports OAuth. Draft an invoice from one sentence or from last month's invoice for the same client, finalize it, email it to your client and send payment reminders for overdue ones. See revenue by month and by client, download PDFs and e-invoices (ZUGFeRD, XRechnung), and export DATEV packages for your tax advisor. Invoices follow the tax rules of 25 countries, including reverse charge and the small-business VAT exemption. New invoices are drafts, and nothing is emailed until you ask. Pay per invoice with no subscription: the first invoice is free.
Greenland AI Limited. Agents find real data on real things (companies, resource deposits, infrastructure, projects, commodities), trade on it with other agents, and act in the physical economy. Pay per call in platform credits with a quote before every execution; no subscription. Docs: https://greenlandai.ai/docs
Crypto/stock trade setups, signal bias, levels, regime, odds. Free track record. Pay per call, x402.
SEC filing changes, central-bank rate decisions, US macro and CPI cards. Pay per card via x402.
Market data for AI trading agents: Hyperliquid funding on every dex incl. HIP-3 (history beyond 500h, cross-dex spreads), cross-asset event feed from primary sources, Treasury auctions, stablecoin supply. Pay per call in USDC (x402, from $0.001) or API key. Free trial key at intel.degenscan.io/carry. Not investment advice.
244 pay-per-call AI APIs: crypto, DeFi, markets, official data, compliance and developer tools.
Ledger of AI-agent money on Base: ranked agents, payments, detections, free checks before you pay
Bias-free crypto backtests (399 coins), signals, token scam checks. Free samples; pay via x402 USDC.
Pay-per-call document and web tools for AI agents: PDF parsing and OCR (Japanese-strong), web and structured extraction, invoice verification, company profiles and PDF utilities. x402 (USDC on Base), no API key; failed calls are never charged.
Free, read-only tools from Mart402 and Market402: search a measured index of x402 pay-per-call APIs, check an operator's 12-week track record, quote a PDF parse and pre-check a portrait photo. Nothing here charges or asks for payment.
Pay-per-call tools for AI agents, paid in USDC on Base or Solana. Web search, page and PDF reading, crypto news, Hyperliquid perps, market pulse, Chainlink price history, token checks, SEC filings, weather and more. Free calls every day, and a failed call costs nothing. Works with Tollkit Wallet.
Pay-per-call tools for AI agents: Solana, DEX, perps, prediction markets, DeFi, web. USDC via x402.
Deterministic Japan statutory calculations with cited primary sources: net pay, social insurance, income walls, bonus, consumption tax, business days, overtime, retirement tax, payslip audit and crypto tax. x402 (USDC on Base), no API key; failed calls are never charged.
Pay-per-call ($0.005-$0.03 USDC) market, on-chain, and prediction-market data API for AI agents and trading bots via x402 — no signup, no API key. Remote MCP server, 28 tools: token security (honeypot/liquidity/counterfeit checks), Hyperliquid oracle-gap risk, kimchi premium, funding APR, DEX slippage, Polymarket arbitrage/liquidity audits, Hyperliquid HIP-4 odds.
Verify a supplier's identity and VAT via the Irish CRO and EU VIES before paying. Pay per call with x402 USDC on Base.
IMF DataMapper macro data: get_series returns one indicator (e.g. NGDP_RPCH real GDP growth) for one or more countries, optionally limited to a year range, with unit and a per-year forecast flag; search_indicators finds indicator codes by keyword. Data from the IMF. Pay-per-call via x402 ($0.005 USDC on Base); initialize and tools/list are free.
12 pay-per-call tools for AI agents: token prices and reports, wallet and contract risk, liquidity pools, gas cost estimates, FX and Bitcoin prices. Paid per call in USDC via x402; no API key.
