sort by:defaultA → ZZ → Aapi callsvolume
api.insumermodel.com
Signed attestation (ECDSA plus a post-quantum ML-DSA-65 companion) of on-chain wallet conditions across 37 chains: token balance, NFT ownership, EAS, Farcaster, view calls, ratio rules, account code (plain key, EIP-7702 delegation, or contract), and agent standing (ERC-8004 registration, ERC-7710 delegation validity). A verifiable boolean, never raw balances or code. Up to 10 conditions per pay-per-call request. Pay in USDC on Base, Polygon, Arbitrum, Arc, or Solana.
$0.05 USDC
gas.apitoll.cloud
Base gas oracle / gas price API for AI agents and bots — get the gas price for a transaction on Base in one x402 call. Real-time slow/standard/fast EIP-1559 fee tiers from a live eth_feeHistory call, returned as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei — plug straight into a viem/ethers transaction, no gwei conversion. Plus base fee, head block, and network fullness. Call it before every Base tx to set a fair fee or wait out congestion.
$0.001000 USDC
whaletape.xyz
Hyperliquid perps (perpetual futures). What history exists before you pay for it: how many markets we track, which asset classes, and the range covered. The cheap probe that tells an agent whether the paid series is worth buying
0.01 tokens
glim.sh
Search tweets, X-API-style raw shape. Body: {"q":"x402","sort":"Latest","limit":20} - the param is q, not query
0.01 tokens
cdp-agent-0-01.onrender.com
AgentWire service card for webhook inbox relay and web fetch infrastructure.
$0.001000 USDC
api.robinx.io
Live scored launch feed (realtime) — or add ?tier=free for the 10-min-delayed free feed, or ?tier=alpha ($0.02) for caller_signal enrichment
$0.01 USDC
x402.problocks.io
Verify payment connectivity with USDC on Base. Returns a JSON pong and UTC timestamp after settlement.
$0.001000 USDC
brasil-dados-api.onrender.com
Official USD/BRL and EUR/BRL exchange rates (PTAX, Central Bank of Brazil).
$0.002000 USDC
api.nansen.ai
Get Address Related Wallets Data
$0.01 USDC
simulate.cyberwarex.com
Decode raw EVM calldata into a named function, signature and arguments, plus security risk flags (unlimited token approval, setApprovalForAll, ownership transfer, unknown selector, native value transfer). Keyless, deterministic, no simulation - the cheap way for an agent to understand and risk-screen a piece of calldata before signing.
$0.002000 USDC
api.solenrich.com
Screen every StonkFun reward coin from a 10-minute index. Per row: payout status (PAYING / STALE / NEVER), hours since last payout, live flag (traded AND paid in 24h), round-trip transfer-tax cost, holders, rewards USD, yields, volume, mcap, 24h change. Filters: quote_mint, category, holders, age, volume, market cap, paying_only, live_only. Sort by volume24h (default), lastPayout, holders, priceChange24h, or yield. "Which coins on NVDAX paid holders today?" is one call.
0.01 tokens
offercheck.offercheck.workers.dev
Read any public web page as clean Markdown: main-content extraction (navigation, footers, scripts and hidden elements removed), headings, lists, tables, code blocks, links (absolute, deduplicated), images, plus title, description, canonical URL, language, author and publish date, and a content hash + fetch time as evidence. JSON and plain-text URLs are returned as-is. No JavaScript rendering. $0.001 per page.
$0.001000 USDC
coingecko.use.x402atlas.com
Crypto token price in USD, EUR and more — real-time spot prices for one or many coins by CoinGecko id (bitcoin, ethereum, solana).
$0.005000 USDC
readx.sh
Search for tweets by query (optional product filter; paginate with cursor). Example: GET /api/search/tweets?q=typescript
$0.01 USDC
crypto.apitoll.cloud
Perpetual-futures market data from Hyperliquid for any coin (BTC, ETH, SOL, HYPE…): mark price, hourly funding rate and its annualized APR, open interest in coin and USD, 24-hour notional volume, 24h price change, and max leverage, across 200+ perp markets. Sort by volume, open interest, or funding. Track the perp market the way trading agents do. Sourced from Hyperliquid.
$0.001000 USDC
crypto.apitoll.cloud
A snapshot of the total crypto market: aggregate market capitalization in USD, 24-hour trading volume, Bitcoin and Ethereum dominance percentages, 24h market-cap change, and the number of active cryptocurrencies and markets. The macro view in one call. Sourced from CoinGecko.
$0.001000 USDC
quartermaster.surewhynot.app
Resolve DNS records using DNS-over-HTTPS and return structured JSON for infrastructure, security, and agent workflows.
$0.001000 USDC
rpc.nodeflare.app
Arbitrum One RPC (chain 42161): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive) - good for indexing, event queries, and simulation. Simple calls $0.001; heavy calls priced by compute units.
$0.001000 USDC
api.justaname.id
Resolves an ENS name into its addresses, text records, and content hash, with batch support up to 50 names and per-name chain scoping via interop addresses.
$0.005000 USDC
api.kadec0.xyz
Web search results (SERP). Keyless web search returning ranked title, URL, and snippet for a query — with locale/region targeting, freshness filters (past day, week, month, year), pagination, a news mode that adds publish date and source, and selectable backend engine (auto rotation, or pin Brave, Yahoo, or Yandex).
$0.05 USDC
← prevnext →