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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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Crypto & DeFi
1,108 results- AAdalia UndertowCrypto & DeFi
Latest liquidation map for one coin: price clusters of leveraged liquidation levels with each cluster's share of the map and its exact (on-chain) share, the reference price, open interest on-chain and on centralized exchanges, and the exact vs modeled fraction. Coins: BTC, ETH, SOL, XRP, DOGE, BNB, AVAX, LINK, LTC, ADA, SUI, WIF.
Basex402.adalia.eefrom $0.011 endpoint - TThe Tie Stablecoin IntelligenceCrypto & DeFi
Retrieve a seven-day USD-denominated report of Tether bridge flows on Ethereum. This is a bounded onchain stablecoin intelligence product backed by The Tie's data API.
Base Sepoliax402-stablecoin-data-demo.ryan-ee4.workers.devfrom $0.011 endpoint - CCovenantCrypto & DeFi
Observe an MPL Core asset, its 014 Registry binding, and DAS-reported AppData. This does not prove identity or claim truth.
Solanax402-seller.opencovenant.orgfrom $0.0011 endpoint - TThe WildCrypto & DeFi
A numbered material, Cairn Crab or Pocket Wild pixel creature from The Wild's field edition, $0.01 USDC on Base: 1000 editions per material or crab, 128 per pixel creature. A public site record with a receipt, optionally dedicated to a spirit's altar; not an NFT.
Basethe-wild-x402.mhoydich.workers.devfrom $0.011 endpoint - SscorestatusCrypto & DeFi
Buy a live status line install for a team. Returns the client script file(s), config snippets, and step-by-step instructions for the installing agent to execute locally. The response token makes the line endpoint work and re-downloading the same bundle via /api/bundle is free — never pay twice for a retry.
Basescorestatus.devfrom $0.051 endpoint - Sscan.convrgent.aiCrypto & DeFi
Paid equivalent of /api/aeo/scan — scanner for AI search visibility (AEO, GEO) and agent readiness. Triple score + AI Identity Card + top issues covering JSON-LD Schema.org, meta tags, llms.txt, robots.txt, sitemap, and agent-discovery signals for ChatGPT, Perplexity, Google AI Overviews, Bing Copilot. $0.01 in USDC (Base or Solana) — Bazaar-indexable variant; the free version at /api/aeo/scan sta
BaseSolanascan.convrgent.aifrom $0.011 endpoint - Ppayerproof-production.up.railway.appCrypto & DeFi
Verified on-chain USDC revenue stats for any x402 seller address on Base: total received, transfer count, unique payers, top-payer concentration, largest transfers. Window up to 720h (30d), incremental coverage.
Basepayerproof-production.up.railway.appfrom $0.012 endpoints - Ppastebin.0000402.xyzCrypto & DeFi
Pay $0.01 USDC to store up to 100 KB of text or code. Returns a token for free retrieval anytime via GET /paste/{token}. Network: Base Mainnet. Each request stores one text or code blob and returns a retrieval token, making it useful for notes, code snippets, logs, and debug-output sharing.
Basepastebin.0000402.xyzfrom $0.011 endpoint - Ooracleinsight.xyzCrypto & DeFi
Execution preflight: a chain-neutral ALLOW/CAUTION/BLOCK data-sufficiency decision for one declared action. A complete BLOCK result is charged; settlement occurs only after a successful response.
BasePolygonArbitrum+3oracleinsight.xyzfrom $0.022 endpoints
MintScopeCrypto & DeFiEvidence-based NFT collection risk report: verified OpenSea market data, realized sales versus listings, creator evidence, risk flags, missing data and a confidence level. Not a profit prediction.
Basemintscope-zrvv.onrender.comfrom $2.992 endpoints- TTestnet ETH MerchantCrypto & DeFi
Buy Sepolia ETH with Base or Solana USDC at $0.1 per testnet ETH
BaseSolanamerchant-production-c224.up.railway.appfrom $0.101 endpoint - WWicked MemoryCrypto & DeFi
Semantic search over an agent's own persistent memories (wallet-scoped). Free with a valid x-api-key.
Basememory.wickedapi.comfrom $0.0011 endpoint
XR-LedgerCrypto & DeFiXR-Ledger account statement for an XRPL address
xrplBaseledger.xrpl-utilities.io—1 endpoint- LLazarettoCrypto & DeFi
Pre-install scan of an npm or PyPI package, GitHub repo, raw URL, ClawHub skill, MCP server or tool list, or inline content. Matches OSV and OpenSSF malicious-package advisories, then behavioral analysis for credential theft, exfiltration, obfuscation, prompt injection, install-time droppers and MCP tool poisoning. Returns a verdict, file-and-line evidence, a SHA-256 of the input and an Ed25519-si
Baselazaretto.devfrom $0.031 endpoint - DDecode a JWTCrypto & DeFi
Decode a JSON Web Token WITHOUT verifying its signature and return the header, payload and signature. A structurally malformed token is rejected before payment. Never trust a decoded payload you have not verified.
Basejwt.openverbs.comfrom $0.0042 endpoints - AAlgono InferenceCrypto & DeFi
Low-cost OpenAI-compatible Responses API inference over Solana USDC x402.
Solanainference.algono.cofrom $0.0021 endpoint - Iident.halowerk.comCrypto & DeFi
Creates a five-minute inbound SMS lease through a configured licensed provider, polls received messages, and releases the number upstream on cancellation, expiry or failed x402 settlement. Twilio is supported directly; an HTTPS bearer-token lease provider can also implement the documented generic contract. Messages and lease metadata are removed after expiry.
Baseident.halowerk.comfrom $0.0061 endpoint - HHash dataCrypto & DeFi
Compute a cryptographic digest (SHA-2, SHA-3, BLAKE2, and legacy SHA-1/MD5/RIPEMD-160) of some data. The input may be utf8/hex/base64/base64url and the digest is returned as hex/base64/base64url.
Basehash.openverbs.comfrom $0.0022 endpoints - x402 Trust ScanCrypto & DeFi
Batch EVM token contract-risk check: up to 10 addresses in one paid call (half the per-token price), on any one chain (base, ethereum, arbitrum, optimism, polygon, bnb). Same output as /v1/check. Query: ?addresses=0x1,0x2,...&chain=base
SolanaBasegdzlcxskuhupymyxywzm.supabase.cofrom $0.0018 endpoints
DeepCounterfeitCrypto & DeFiDeepCounterfeit pre-buy check for 8QtbrC9d3BezyCwzBFUQbNsWJGte7ckrZ7HWcn81pump (risk signals, informational only, not financial advice)
BaseSolanaPolygon+1deepcounterfeit.comfrom $0.011 endpoint- Ccounterpartycheck.comCrypto & DeFi
Pre-payment counterparty risk check for AI agents: OFAC sanctions (names, aliases, wallets), domain age and email authentication, vendor and executive impersonation domains, routing/IBAN/SWIFT/wallet validation, and invoice-fraud signals. Returns proceed/review/block, explained findings and a signed receipt.
Basecounterpartycheck.comfrom $0.251 endpoint - Ccasino.caishen.ukCrypto & DeFi
Top up a balance for provably fair higher-or-lower. Each side wins 49.5% and pays 2x. Bets from $0.01, played off-chain from the balance.
Basecasino.caishen.ukfrom $0.251 endpoint - Bbase-reads-api.rafliyaputra.deno.netCrypto & DeFi
Base mainnet head: latest block number, block age in seconds, base fee and gas price in gwei. Use it to check the chain is advancing and to estimate fees before sending a transaction. One small JSON read instead of several raw RPC calls and unit conversions.
Basebase-reads-api.rafliyaputra.deno.netfrom $0.0011 endpoint - BBase PulseCrypto & DeFi
Run before sending ETH or USDC or paying gas, to confirm the wallet really has enough. Never trust a balance remembered from earlier in a chat. Reads a wallet's ETH and native USDC balance on Base directly from the chain, at one block.
Basebase-pulse-1021990235790.us-central1.run.appfrom $0.012 endpoints - AAsia PulseCrypto & DeFi
Asia-session snapshot: kimchi premium for 8 coins, BTC and ETH funding, BTC regime classification, US Treasury 5y/10y/20y and 2s10s, Fed dollar indexes, Asian FX, US crypto regulation filings, and events with results.
X LayerBaseasia-pulse.comfrom $0.031 endpoint - Xx402 Intelligence APICrypto & DeFi
x402 market intelligence with current catalog-attributed USDC flow, address-level demand signals and separately labeled value-matched history. The headline covers Base only (market.universeChains); the multi-chain picture ships alongside it as ecosystem, split into an RPC-proven floor and an indexed upper bound that are not additive (notASum). Attribution is not exclusive protocol-intent proof.
Baseapi.x402intel.ukfrom $0.051 endpoint - WWalletTriageCrypto & DeFi
WalletTriage — real-time wallet risk check: dangerous ERC20 approvals cross-referenced with a live exploit threat feed. Returns risk_score (0-100), risk_level and actionable findings.
Baseapi.wallettriage.comfrom $0.011 endpoint - Ttokenplans.devCrypto & DeFi
Full JSON catalog of verified AI coding-subscription plans across 31 providers (Claude, OpenAI, Cursor, Gemini, and more). Each record: monthly price and cadence, included models, usage ceilings and rate-limit windows, coding-tool lock-in, and pricing provenance with lastChecked dates. Use it to pick the right plan for an agent workload or to compare providers.
Baseapi.tokenplans.devfrom $0.101 endpoint - Aapi.relayshield.netCrypto & DeFi
Scan a URL for phishing or malware using heuristic signals (Google Safe Browsing, RDAP domain age, known IOC corpus) plus VirusTotal multi-engine analysis. Returns an async analysis ID to poll. Call before an agent clicks, fetches, or shares a link from an untrusted source.
BaseSolanaapi.relayshield.netfrom $0.053 endpoints - OOrionCMD ChecksCrypto & DeFi
OrionCMD Checks: Prepaid domain threat watch: up to 25 domains for 30 days, webhook alerts. Pay once; each domain is re-checked about once a day for 30 days. You get an HMAC-signed JSON POST at your https webhook_url (event watch.changed) when a domain or its IPv4 appears in (or leaves) ThreatCluster's high-confidence IOC feed, when a new ransomware leak-site claim names it, when its A/NS/MX recor
Baseapi.orioncmd.comfrom $0.0112 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.