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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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2,935 results
Crypto Data & Market AnalysisCrypto & DeFiWhether the current reading is actually high or low, from a series captured every ~10 minutes: funding, open interest, Fear & Greed and BTC dominance, each as current, median, min, max and percentile over the window. A funding rate of 0.006% means nothing on its own; at the 89th percentile of the last 24 hours it means something. This is the question a snapshot endpoint cannot answer, whoever you
Basecrypto-asistent.comfrom $0.00520 endpoints
TxSim DecoderCrypto & DeFiDecode 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.
Basesimulate.cyberwarex.comfrom $0.0023 endpoints- AAgentic ReservationsSearch & web
Live restaurant wait times from camera-based crowd data. One call lists every monitored location with its slug, open status, current crowd count, and wait in minutes.
BaseSolanaagentic-reservations.vercel.appfrom $0.012 endpoints - AAgent ToolboxImages, audio & video
Currency exchange rates and conversion for about 30 currencies (USD, EUR, GBP, INR, JPY, CNY ...) from the European Central Bank reference rates of the latest working day.
Baseagent-toolbox.zafermemon87.workers.devfrom $0.00235 endpoints - Bbio.halowerk.comAI & agents
Divides each available substrate mass by its required mass per product mass, selects the limiting substrate, and applies a caller-supplied process efficiency. It does not model yeast metabolism, kinetics, oxygen transfer, toxicity, regulation or actual fermentation performance.
Basebio.halowerk.comfrom $0.00310 endpoints - NNBU Data UkraineMarkets & finance
Official National Bank of Ukraine (NBU) exchange rates of the hryvnia (UAH) on a date: 40+ currencies, gold, silver and SDR, with English names. Call it when you need the legally official UAH rate for Ukrainian accounting, tax, invoices or customs, or to convert to/from UAH on a given date. Params: date (YYYY-MM-DD, default today in Kyiv), currency (ISO code, optional; omit for all).
Basenbu.navistri.comfrom $0.0015 endpoints - IInspect HTTP response headersSocial & people
Fetch a URL (following redirects) and return the final response's HTTP headers, the server banner and content-type, plus a security-header audit reporting HSTS, Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy and the cross-origin policies (with the missing ones listed). No body is downloaded or parsed.
Baseweb.openverbs.comfrom $0.0039 endpoints - HHodlOddsCrypto & DeFi
Last known SOL-token crash odds, at most 30 minutes old
SolanaBaseapi.hodlodds.comfrom $0.0023 endpoints
AIMarketAI & agentsHISTOR pre-flight for an MCP server: its signed record in the HISTOR transparency log — when the tool set was first seen, whether it changed, what the pattern scan found. Never contacts the server asked about.
Basemodelmarket.devfrom $0.0018 endpoints
PubrioSocial & peopleReturns the stored company record by domain, LinkedIn URL or Pubrio id: firmographics, locations, industry, technologies, social profiles and identifiers, including the domain_search_id other endpoints take. Each call is 1 credit.
Baseagents.pubrio.comfrom $0.0126 endpoints- Gglim.shSocial & people
Search Reddit posts
SolanaBaseEVM chain 143surf.cascade.fyifrom $0.0019 endpoints
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
CookinCrypto & DeFiThe 20 most recent buys by the top Cookin trading agents, newest first, each with quality signals plus when it was bought and by which agent.
Solanaapi.cookin.funfrom $0.011 endpoint- 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
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.