x402.ottoai.services
Which protocols earn the most — and who is accelerating? Top 30 DeFi protocols by 24h fees, each with revenue, take-rate (the cut the protocol keeps vs fees users pay), 7d/30d trend and category, plus total DeFi fees & revenue. A fundamentals screen (fee/revenue economics), distinct from TVL. Sourced from DefiLlama (public). Cached while fresh (DefiLlama fees are daily aggregates), regenerated on demand when stale.
$0.001000 USDC
data.greeneris.io
Postal code resolution for ~60 countries via Zippopotam.us (GeoNames data, CC BY 4.0). Forward: ?country=us&code=90210 -> place names, state, lat/lon. Reverse: ?country=us&state=ca&city=beverly hills -> matching postal codes with coordinates. Unknown codes return found=false (an explicit validation verdict). Cached 30 days.
$0.001000 USDC
smx.space
Read SMX (Space Markets Stage 1) testnet event markets on space milestones, e.g. Starship Flight 14 and The Moon Race, on Base Sepolia (eip155:84532): list markets, market detail, or mid price in cents. Each read costs $0.01 test USDC via x402. Test collateral has no monetary value. This API does not place orders: trading is wallet-signed from your own wallet per https://smx.space/skill.md. Docs: https://smx.space/llms.txt
$0.01 USDC
agent402.tools
Live $1-peg deviation for the top USD stablecoins (USDT, USDC, USDS, DAI, USDe, PYUSD, USDD, TUSD, FDUSD by default, or pass your own list): current price, deviation in basis points, 24h high/low, worst 24h deviation, market cap, and an on-peg / stressed / depegged status. Data provided by CoinGecko.
$0.003000 USDC
cryptyx.ai
Single-call LLM grounding bundle — top 10 and bottom 5 composite-ranked assets, all signals triggered today, 30-day factor breadth across 8 classes, plus a ready-to-drop plaintext brief for an agent prompt. Runs across 200+ digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.
$0.01 USDC
agent402.tools
Current gas price on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, Sei, Arc, or Robinhood Chain - for an agent budgeting a transaction: returns network, gasPriceGwei and gasPriceWei (decimal strings) from the chain's own eth_gasPrice, the node's suggested all-in price per gas unit. Multiply by the gas a transaction uses (21000 for a plain transfer) for its fee. Read-only.
$0.001000 USDC
ausca.com
Extract normalized forms, tables, signatures, or layout from a document.
$0.30 USDC
api.kadec0.xyz
Citation lookup and reference list for a paper. Given a DOI, arXiv id, OpenAlex id, or PMID, returns its references (the works it cites) and its cited-by list (recent works that cite it), plus full metadata and citation count — for bibliography building and citation lookup. Keyless via OpenAlex and Semantic Scholar.
$0.03 USDC
web.cyberwarex.com
Extract text from an image by URL (OCR): PNG/JPG/WEBP/TIFF/BMP of a screenshot, scan, receipt, chart or photo -> the readable text, via the Tesseract engine. Keyless, no LLM. Use it to read text an agent can only see as an image. SSRF-guarded; max ~10MB.
$0.005000 USDC
agent.pocket.network
Read-only JSON-RPC access to opBNB, the OP-Stack L2 on BNB Chain, served by the Pocket Network decentralised supplier set. Pay per request in USDC; no account, no API key.
$0.005000 USDC
data.greeneris.io
Current wall-clock time for any IANA timezone, resolved live by timeapi.io (IANA tz database, includes DST rules). Query: ?tz=Europe/Paris (or America/New_York, Asia/Tokyo...). Returns ISO datetime, date, time, day_of_week and dst_active flag. Served with a 60s cache.
$0.001000 USDC
netintel.dev
Split text into overlapping chunks for RAG ingestion — by characters or words, with configurable chunk size and overlap. Deterministic (same input → same chunks), returns each chunk with its index and start/end offsets. No API key, no LLM. Pairs with /v1/embeddings for a full chunk→embed pipeline.
$0.001000 USDC
web.cyberwarex.com
Targeted web scrape: pass a CSS selector and get back only the matching elements from a fully JavaScript-rendered page. Each element returns its tag, text content and every HTML attribute. Use it to pull prices, links, table rows, headlines or any repeated structure without parsing a whole document. Returns a match count so an agent can tell an empty page apart from a broken selector.
$0.001000 USDC
api.xynaptic.io
Xynaptic Crypto Price — real-time snapshot of 6 major crypto assets (BTC, ETH, SOL, ADA, LINK, DOT) with 24h changes, breadth and top movers. USD only, agent-ready.
$0.01 USDC
agent.pocket.network
Read-only JSON-RPC access to Berachain mainnet, served by the Pocket Network decentralised supplier set. Pay per request in USDC; no account, no API key.
$0.005000 USDC
agent.pocket.network
Read-only JSON-RPC access to Kaia mainnet, the Klaytn and Finschia merged chain, served by the Pocket Network decentralised supplier set. Pay per request in USDC; no account, no API key.
$0.005000 USDC
agent.pocket.network
Read-only JSON-RPC access to BNB Smart Chain mainnet, served by the Pocket Network decentralised supplier set. Pay per request in USDC; no account, no API key.
$0.005000 USDC
x402financialdata.com
Every US airport currently under an active FAA advisory in one call: closures, ground stops, ground delay programs, and arrival/departure delays, each with its reason and timing. Live from the FAA's own public National Airspace System status feed -- the same source air traffic control uses. Not airport-specific. $0.01/call.
$0.01 USDC
agent.pocket.network
Read-only JSON-RPC access to Scroll, the zkEVM rollup on Ethereum, served by the Pocket Network decentralised supplier set. Pay per request in USDC; no account, no API key.
$0.005000 USDC
api.oblique.markets
Use when an agent needs mpp route. Returns MPP-native catalog-first task router: paid top-three shortlist with prices, payment methods, MCP schemas, health metadata and operator source attribution. $0.01.
$0.01 USDC