Explore APIs
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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2,776 results
OceanAltCrypto & DeFiSanctions screening, anti-money laundering (AML) screening and payee screening (KYT) before an AI agent pays: OFAC and other sanctions lists, mixers, scam and hack lists, on-chain risk. Returns a crypto compliance decision (allow / review / decline) with verifiable evidence and a signed receipt. Prepaid credits are cheaper: see POST /api/x402/credits.
BaseX LayerSolanaoceanalt.comfrom $0.0025 endpoints- AAgent UtilitiesAI & agents
Paste-ready bid draft (0.01 USDC cheapest). Free radar first: GET /v0/sample-radar then POST {brief}.
Basex402.devvizion.comfrom $0.015 endpoints - BBusker EmbeddingsImages, audio & video
Generate sentence embeddings (all-MiniLM-L6-v2, 384-dim, mean-pooled + L2-normalized) for up to 96 texts per call. Drop-in compatible with any all-MiniLM-L6-v2 index. Pairs with /chunk for a complete RAG pipeline.
Baseworkbot1.oddsys.orgfrom $0.00114 endpoints - Aapi.predictionmarketdata.ioData & research
Aggregated prediction-market statistics by sector.
Baseapi.predictionmarketdata.iofrom $0.0018 endpoints - HHALOWERK creatorwerkImages, audio & video
Requires shares totaling exactly 10,000 basis points, floors each proportional minor-unit allocation, and distributes leftover units by descending fractional remainder with a stable name tie-break. It performs arithmetic only and does not transfer funds, interpret contracts, withhold tax or resolve rights ownership.
Basecreator.halowerk.comfrom $0.00115 endpoints - Ppennypress.orgCrypto & DeFi
Witness the SHA-256 fingerprint of a literary work: submit a title, content hash, and optional pen name; receive a tamper-evident, hash-chained receipt. Timestamping, not endorsement. We never see the work itself.
Basepennypress.orgfrom $0.0130 endpoints - Xx4o2 pump.fun DataImages, audio & video
The ranked coin feed pump.fun's home page loads: each coin's mint, name, image, market cap, protocol (pump bonding curve or AMM), creator, creation time and activity figures. A broader, slower-moving list than the trending board. Use for market-wide scans.
BaseSolanapump.x4o2.comfrom $0.00113 endpoints - RRSoft BankMarkets & finance
Live USDC lending rates of RSoft Bank, a real lender for AI agents on Base mainnet. Call it before requesting a loan or when comparing the cost of agent credit: returns the annual interest rate per credit tier (AAA 5% to CCC 35%), the loan size range (5-25 USDC with a human sponsor, 2 USDC flat without one), the maximum term (90 days), network and last update. Cheapest way to learn what borrowing
Base7mavs5vu7ggbhtxvbavdgs26qa0cbawg.lambda-url.us-east-1.on.awsfrom $0.0017 endpoints - SStableStudioCrypto & DeFi
Get a client token for direct upload to Vercel Blob
BaseSolanastablestudio.devfrom $0.011 endpoint - AAgent Rest StopCrypto & DeFi
Crypto USD price. Send a symbol such as ETH or BTC.
Baseagent-gas-station.agent-gas-station.workers.devfrom $0.00254 endpoints - PParseAPIImages, audio & video
Recall tenant memory
Baseparseapi.infofrom $0.0025 endpoints - AAvasis Agent PlatformCrypto & DeFi
Base (chain 8453) gas tip for agents that send transactions: latest block number and age, base fee, eth_gasPrice, eth_maxPriorityFeePerGas and a suggested maxFeePerGas (2x base fee + priority), from one batched RPC call every 2 s. Long-poll with ?since=<seq>&wait=25. Prepaid meter price $0.0002/call (packs at /v1/meter); SSE at /v1/stream/tips.
Baseagents.avasis.aifrom $0.00226 endpoints - Aapi.nonsynthetic.netOther services
safe arithmetic eval (+ - * / % ^ parens)
BaseSolanaapi.nonsynthetic.netfrom $0.0026 endpoints - WWithZeroImages, audio & video
Generate images from a text prompt with xAI's Grok Imagine quality tier. Returns hosted image URLs.
Baseagents.withzero.xyzfrom $0.0130 endpoints - AApify APIImages, audio & video
Start the "Instagram Scraper" Apify actor (apify/instagram-scraper). Scrape and download Instagram posts, profiles, places, hashtags, photos, and comments. Get data from Instagram using one or more Instagram URLs or search queri…
Basestableapify.devfrom $0.0110 endpoints - Xx402-service-production-e242.up.railway.appDeveloper tools
Email and domain trust check. Give an email address or a domain, get one risk level (low, medium, high) with plain-language flags and the facts behind them: domain age, registrar, expiry and hold status (RDAP); MX, SPF and DMARC policy; the live TLS certificate; and for emails, syntax, disposable-provider and role-address checks. Judges the domain: does not verify that the mailbox exists and does
SolanaBasex402-service-production-e242.up.railway.appfrom $0.00510 endpoints - Gglim.shSocial & people
Search users by keyword
SolanaBaseEVM chain 143twitter.surf.cascade.fyifrom $0.0016 endpoints - Xx402 FunSearch & web
A fortune cookie: one short, upbeat fortune (80 written for this service) and six lucky numbers from 1 to 49. Give a seed for a repeatable draw.
Basefun.kagurazaka.devfrom $0.0017 endpoints - Xx402 toolsCrypto & DeFi
Generate QR codes for text, URLs, or Web3 payment requests (EIP-681 / Solana Pay). Supports PNG, SVG, JSON output with dataUri, custom colors, and batching. Flat $0.002 per call.
Basex402-tools-production-2755.up.railway.appfrom $0.00213 endpoints
WebLensImages, audio & videoExtract text and metadata from PDF documents. Supports page-specific extraction and returns structured content.
SolanaBaseapi.weblens.devfrom $0.000536 endpoints- Iintel.halowerk.comOther services
Ein bezahlter Aufruf liefert alle nicht abgelaufenen Einträge des Zahlers als JSON-Lines. Die verifizierte Zahleradresse ist der Eigentümer; Ergebnisse und gespeicherte Daten sind strikt auf diesen Zahler begrenzt.
Baseintel.halowerk.comfrom $0.0016 endpoints - Xx402 Dev ToolsCrypto & DeFi
Asks the public x402 facilitators (CDP, x402.org, PayAI, x402.rs, Dexter, Daydreams, OpenX402, Mogami, Heurist) for GET /supported right now: whether each answers, its latency, and the x402 versions, schemes and networks it settles. Pass network to keep only those that support it.
Basedev.kagurazaka.devfrom $0.0027 endpoints - HHyperliquid Smart Money Data APICrypto & DeFi
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
SolanaBaseArbitrum+2whaletape.xyzfrom $0.015 endpoints - Aagentworld.meSocial & people
AgentWorld Agent Leaderboard - top AI agents ranked by USDC wealth or reputation score. Includes job role, city, mood, personality archetype. Updated every 3 minutes by the tick engine. Filter by city or job.
BaseEthereumArbitrum+3agentworld.mefrom $0.0012 endpoints - Ccontent.hugen.tokyoCrypto & DeFi
Extract and classify all hyperlinks from a web page — internal vs external using eTLD+1 domain matching. Returns up to 200 internal and 200 external links with counts. No web crawler setup needed. Accepts USDC payments on Base and Solana
BaseSolanacontent.hugen.tokyofrom $0.011 endpoint - Wweb-searchSocial & people
Free-text web search for AI agents: ranked title/url/snippet results fused across multiple engines (Brave, Google, DuckDuckGo, Mojeek, Startpage, Yahoo), with freshness filters (past day/week/month/year), region/locale and SafeSearch. One call for grounded, up-to-date web results — no keys, no scraping setup.
Basewebtools402.176-109-107-191.sslip.iofrom $0.00112 endpoints - Ttouchstone.locomot.ioOther services
Exact structured diff. mode=text -> unified diff + line counts; mode=json -> an RFC 6902 JSON Patch (RFC 6901 pointers) that round-trips a->b; mode=words -> inline word-level opcodes. For large inputs use POST. Every answer signed. Free sample, no payment required: GET /play/diff
Basetouchstone.locomot.iofrom $0.00114 endpoints - 447620 Utilities APICrypto & DeFi
Convert any value between units: length (m/km/mi/ft/in/yd/nmi, plus Russian verst/sazhen/arshin/vershok), mass (g/kg/lb/oz/tonne, plus Russian pood/funt/zolotnik), area (m2/ft2/km2/acre/hectare) and temperature (C/F/K). Pass ?value=<n>&from=<unit>&to=<unit>. Returns the converted value and the unit category.
SolanaBasePolygon47620.xyzfrom $0.00185 endpoints - WWebsterBerry SynapticSocial & people
Screen a person or business name against the US Treasury OFAC SDN sanctions list (including aliases), and optionally confirm an EIN against IRS Publication 78 nonprofit data.
Basesynaptic.websterberrymarketing.comfrom $0.00510 endpoints - BbasedueCrypto & DeFi
Public holiday and business-day calendar for US and UK: is a date a business day, add N business days, count business days between dates (net of holidays), and list a year's holidays. $0.01 per call in USDC on Base via x402.
Baseapi.firstmention.ukfrom $0.0127 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.