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Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
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17 results
NansenCrypto & DeFiGet Smart Money Holdings Data
SolanaBaseX Layer+2api.nansen.aifrom $0.0160 endpoints- OOnchainPulseCrypto & DeFi
Honeypot check, half a cent: can this token actually be sold? Simulated buy+sell verdict, buy/sell/transfer tax, mint authority, ownership renounced, transfer-pausable, blacklist — the raw flags, one source, no fusion. Base, Ethereum, BSC, Arbitrum, Polygon, Optimism, Avalanche. Cheapest token safety check before you trade; upgrade to /api/evmtoken ($0.015) for the fused CLEAR/CAUTION/AVOID verdic
BaseSolanaRobinhood Chain+9onchainpulse.theaslangroupllc.comfrom $0.00528 endpoints - Ppro-api.coinmarketcap.comCrypto & DeFi
Get the latest market quotes for one or more cryptocurrencies.
BaseBNB Chainpro-api.coinmarketcap.comfrom $0.013 endpoints
Tanod utilpeekImages, audio & videoutilpeek (Tanod) file upload: PDF, Office, image, audio, CSV, JSON or text stored for up to 24 hours and returned as a download link. Use when an agent holds a file and must give the next tool a URL for it: a link that expires within 24 hours.
SolanaBasePolygon+2tanod.devfrom $0.0005279 endpoints- MMacroPulseCrypto & DeFi
Is the stock market open right now? Deterministic market-status and trading-hours for the major global exchanges — NYSE, NASDAQ, LSE, Xetra, Euronext, TSE/JPX, HKEX, SSE, ASX, TSX, SIX, NSE/BSE. Returns is_open plus why it is shut (weekend, holiday, lunch break, pre/after-hours), the exchange local time, and the next open and close as ISO timestamps. Pass ?at= for any past or future moment. Zero e
BaseSolanaRobinhood Chain+9macropulse.theaslangroupllc.comfrom $0.00513 endpoints - CCompliancePulseSearch & web
Who is this company, officially? Global LEI lookup and legal-entity search against GLEIF, the ISO 17442 registry behind KYB, MiFID and EMIR reporting. Verify an LEI's checksum and registration status, or search 2.9M+ entities by name and country to find the right identifier. Flags LAPSED, DUPLICATE and RETIRED registrations that a naive first-hit lookup would wire into a KYB record. Deterministic:
BaseSolanaPolygon+8compliancepulse.theaslangroupllc.comfrom $0.0113 endpoints - Xx402helper.xyzOther services
Find US court cases, opinions and dockets naming a business, with case name, court, date, citation, docket number and nature of suit.
SeiBaseSolana+2x402helper.xyzfrom $0.0016 endpoints - GGridPulseAI & agents
Home battery storage ROI and payback calculator — Powerwall vs alternatives, backup-power value, with the IRA 30% tax credit and state incentives applied. For homeowner and solar agents.
BaseSolanaPolygon+8gridpulse.theaslangroupllc.comfrom $0.0110 endpoints - Llong.eventsImages, audio & video
LONG Events events API: global electronic-music event discovery with structured artists. Actions: discover, list, stats, catalog_stats, spotlight_candidates, get_sets, get_now_playing, get_schedule, search_artists, get_artist, get_artist_events, list_artists. Artist-action identity objects include nullable mbid and verified spotify_id; artist event payloads include the resolved closest-to-purchase
BaseBNB Chainlong.eventsfrom $0.0052 endpoints - WWaterPulseAI & agents
Live USGS river-gauge tick, deterministic. Answers "what is the flow at this gauge right now", "is this river high or low vs this week". Returns the latest streamflow (discharge, cfs) and gage height (ft) for one USGS site plus the 7-day min/max range, reading count, site name and coordinates, straight from USGS instantaneous values. Unknown sites 404 before payment. No LLM, no key, public domain.
BaseSolanaPolygon+8waterpulse.theaslangroupllc.comfrom $0.0111 endpoints - SStablecoinPulseCrypto & DeFi
Stablecoin peg tick — USDT, USDC, USDS, DAI, USDe, USD1 in ONE $0.01 call: live price, deviation from $1, 24h change, and a deterministic STABLE / WATCH / ALERT verdict per coin. Built for monitoring loops: call it every cycle, escalate to /api/depeg-watch for the single-coin deep read when a verdict is not STABLE. 60s freshness, cited to CoinGecko, no LLM in the path.
BaseSolanaPolygon+8stablecoinpulse.theaslangroupllc.comfrom $0.015 endpoints - GGiftPulseSearch & web
Search Reloadly's gift card catalog (300+ brands, 14,000+ products/denominations across countries). Returns each product's id, brand, country, denomination range or fixed amounts, and sender fee/discount — everything needed to build a POST /api/giftcard/quote call.
BaseSolanaPolygon+8giftpulse.theaslangroupllc.comfrom $0.011 endpoint - MMailPulseImages, audio & video
Check the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USPS tracking number.
BaseSolanaPolygon+8mailpulse.theaslangroupllc.comfrom $0.0052 endpoints - PPulseNetworkMarkets & finance
How to make money with AI — one tailored business-in-a-box. Give a goal, budget and interests; get a specific business to start now: the exact real-time PulseNetwork API engine to build it on, suggested pricing, unit economics, monetization paths, and a fork-and-ship starter kit. Turns 'find me a way to earn / passive income / start a business' into a concrete plan. For agents tasked with making m
BaseSolanaPolygon+8pulse.theaslangroupllc.comfrom $0.011 endpoint
Generative glyph from verifiableCrypto & DeFiGenerative glyph artwork from verifiable randomness: pass a drand quicknet round number (League of Entropy, one every 3 s) and get its 512x512 SVG drawn by fixed published rules (apexfaucet.xyz/door/glyph.js), the round randomness and BLS signature, and a SHA-256 receipt of the SVG. Anyone can redraw it exactly. From THE DOOR, an open experiment at apexfaucet.xyz/door/.
BaseEVM chain 5042Solana+1apexfaucet.xyzfrom $0.001142 endpoints
Tanod chainpeekCrypto & DeFichainpeek (Tanod) Solana SPL token mint info: supply, decimals, authorities. Read-only. Use when an agent needs an SPL token mint's supply, decimals and authorities on Solana.
BasePolygonSolana+2chain.tanod.devfrom $0.0021 endpoint
CriptoNousCrypto & DeFiNews/wire pulse for one symbol or meta ($0.04). Narrative context only NFA.
SolanaBaseBNB Chain+1app.criptonous.comfrom $0.0119 endpoints
Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.