2s.io
Look up or search NAICS 2022 industry classification codes (US Census Bureau, public domain). Pass `code` for an exact NAICS code — 2–6 digits or a combined sector like 31-33 — and get its official title, hierarchy path, full official description, activity index terms, and direct child codes. Or pass `query` for free-text search (e.g. 'software publishers', 'coffee shop') over titles plus the official ~20k-entry activity index → ranked candidate codes, optionally filtered by `level` (2=sector … 6=national industry). Ground truth for industry coding in KYC, business registration, government filings, and ERP vendor/customer setup.
$0.001000 USDC
entertainment.x402.press
Multi-source AI entertainment reasoning via DeepSeek. Accepts any natural language question about movies, TV, music, games, or events.
$0.25 USDC
2s.io
Look up or search the global LEI (Legal Entity Identifier) registry — the authoritative ISO 17442 directory of ~2.6M legal entities worldwide. Pass `lei` for an exact 20-character LEI, or `query` to search by legal/other name (ranked best-match first). Filter name search by `country` (ISO 2-letter, HQ country) and `status` (active = currently active entities only; all = default). Each result returns the LEI, legal name, an alternate/other name, legal jurisdiction, entity category (GENERAL/FUND/BRANCH/…), ISO 20275 legal-form code, entity status (ACTIVE/INACTIVE), LEI registration status (ISSUED/LAPSED/RETIRED/…), headquarters city/region/country/postal code, the initial registration + last update + next renewal dates, and the managing LOU. Use this to canonicalize a company name to its LEI, resolve a counterparty, or enrich a vendor master. Data: GLEIF Golden Copy (CC0, public domain).
$0.001200 USDC
browser.gedx402.com
Firecrawl v2 API proxy — scrape. JSON body matches https://docs.firecrawl.dev/api-reference/v2-introduction. Poll GET routes are free; POST/PUT/DELETE are x402. $0.042 USDC per request. Agent search: scrape, markdown, firecrawl, web scrape, scrape-lite.
$0.04 USDC
api.kadec0.xyz
Web page to clean markdown. Converts any URL into LLM-ready markdown plus structured metadata — a keyless alternative to Firecrawl.
$0.03 USDC
x402.ottoai.services
AI-filtered crypto news and Twitter search for non-token topics (airdrops, DeFi trends, etc). Max 2 words.
$0.001000 USDC
crypto.apitoll.cloud
Highest-yield DeFi pools across every chain and protocol, filterable by chain, project, or asset symbol: each pool returns TVL in USD, total APY with base/reward split, stablecoin flag, impermanent-loss risk, and exposure. Sort by APY or TVL, and set sustainable=true to exclude IL-risky pure reward-emission farms. Find where to earn yield on USDC, ETH, SOL and more. Sourced from DefiLlama.
$0.001000 USDC
stablefinance.dev
Latest live metrics including market cap and enterprise value.
$0.02 USDC
api.kadec0.xyz
Geocoding and reverse geocoding. Converts an address or place name to latitude/longitude, or coordinates back to an address.
$0.01 USDC
geodns.iwsolutions.ca
Geo-located DNS resolution — resolve hostnames from specific countries to see how CDNs, geo-blocking, and DNS-based routing differ by region.
$0.005000 USDC
readx.sh
A user's timeline: tweets, retweets and quotes. Example: GET /api/jack
$0.01 USDC
api.loyalspark.online
Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.
$0.005000 USDC
dns-whois-lookup.underscoredone.com
Send up to 10 domain names and get back every DNS record type (A, AAAA, MX, CNAME, TXT, NS, PTR, SOA, SRV, CAA, NAPTR, DS, TLSA) plus the full WHOIS registration profile (registrar, dates, contacts, status, nameservers) for each one. URLs are accepted and automatically stripped down to the bare domain. Duplicate domains are quietly removed before processing. Results come back as one flat row per domain, ready to drop into a spreadsheet, database, or pipeline.
$0.01 USDC
crypto.apitoll.cloud
DeFi Total Value Locked (TVL) by blockchain or by protocol. Default returns the top chains ranked by TVL in USD; pass ?chain=Ethereum for one chain, or ?protocol=aave-v3 for a protocol's current TVL, 24h and 7d change, category, market cap, and the chains it spans. Track capital flows across DeFi. Sourced from DefiLlama.
$0.001000 USDC
api.loyalspark.online
Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.
$0.001000 USDC
grid.lonestaroracle.xyz
US electricity grid — demand, generation mix (renewable/gas/nuclear), and stress signals across 7 regions
$0.03 USDC
evm-gas.apitoll.cloud
Multi-chain EVM gas price oracle for AI agents — 17 chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Avalanche…). One x402 call returns slow/standard/fast EIP-1559 tiers as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei (plug straight into a viem/ethers tx, no conversion, exact even on sub-gwei L2s), plus base fee, head block, and fullness, from a live eth_feeHistory call. Pass ?chain= to switch chains.
$0.001000 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
x402.payperbyte.io
Agentic-payments go/no-go verdict: synchronous signed ALLOW/WARN/BLOCK for (domain, receiving address, amount, chain) BEFORE releasing USDC. ar-v1 ruleset over RDAP/TLS/DNS/Wayback domain signals + on-chain receiving-address signals + curated known-bad blocklist. The verdict carries an embedded EIP-712 PayloadAttestation — recompute keccak256(answer) and recover the signer before acting.
$0.10 USDC
x402.ottoai.services
Multi-chain portfolio snapshot with token balances and yield positions for a user's Otto AI Safe accounts across Base, Ethereum, Arbitrum, Polygon, BSC, Avalanche, and Solana.
$0.001000 USDC