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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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325 results
SmartPerps by AgentGateSocial & peopleSmart-money positioning for one Hyperliquid perp: how the 120 most profitable Hyperliquid accounts (30-day PnL, public leaderboard, rules-based) are positioned right now: traders long vs short, long/short/net notional in USD, bias (strong long / lean long / mixed / lean short / strong short), 1h and 24h net notional flow, snapshot age, cohort coverage. Fail-closed: stale or low-coverage snapshots
Basesmartperps.agentgate.workers.devfrom $0.0031 endpoint- CContract Risk APISocial & people
Combined pre-trade safety check: on-chain risk score (proxy + privileged-function detection from live bytecode) plus Telegram alert-channel monitoring, in one call. Cheaper than calling /v1/scan and /v1/alert-check separately ($0.04 vs $0.05), and the two signals are worth more together — a contract with privileged functions that is also being flagged in a security channel is a different situation
Basesmartcontractrisk.0xhodhod.xyzfrom $0.023 endpoints - Llink-rel-pingbackSocial & people
Change watch for does site use owl carousel: runs the check, compares it with the result from your previous call for the same domain (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.
Basesite.intel.rallylive.cafrom $0.0148 endpoints - Ssemagram.ioSocial & people
Profile details and latest posts of named Telegram channels, groups, and bots, read live
BaseSolanasemagram.iofrom $0.012 endpoints - RWA RiskSocial & people
Per-vault RWA risk profile — admin/freeze control + exit-liquidity
Baserwa.lonestaroracle.xyzfrom $0.101 endpoint - TTELAGO Domain Age & RDAPSocial & people
Free TELAGO Korea geocode discovery preview for AI agents. Shows the paid $0.001 Korea address geocode endpoint and building-enrichment capabilities without an API key.
Baseozeejewwpjmabshxyitc.supabase.cofrom Free36 endpoints - NNamewhereSocial & people
Namewhere: Company name to official website domain, with confidence and evidence.
Basenamewhere.cybermaxtools.comfrom $0.0021 endpoint - NNamewhereSocial & people
Namewhere: Company name to official website domain, with confidence and evidence.
Basenamewhere.cybermax-tools.workers.devfrom $0.0021 endpoint - Iis-fandom-com-downSocial & people
Change watch for is trello com down: runs the check, compares it with the result from your previous call for the same query (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.
Basemonitor.intel.rallylive.cafrom $0.0114 endpoints - MMnemoSocial & people
Write a memory for the delegating user: fact, preference, instruction, decision or transient state with TTL. Tier B stores client-side ciphertext the server cannot read.
Basememory.reversecaptcha.funfrom $0.0016 endpoints
LocationListsSocial & peopleNo connector needed: any AI assistant can answer a location question by opening https://locationlists.com/find?q=<the question in plain words> — counts, a preview, a price and a card checkout link. Connect the MCP for repeat use or wallet payments. Ready-to-use lists of US business locations: 1,084 datasets compiled from each brand's official store locator or the public register that publishes th
Baselocationlists.comfrom $0.211 endpoint- Llinkdepot.netSocial & people
Lifetime Featured VIP Directory Listing on LinkDepot.net ($99.00 USDC one-time, zero renewals): pinned top-of-category VIP ribbon, static SEO entity profile, Organization JSON-LD, permanent DoFollow link & 1 custom feature request.
Baselinkdepot.netfrom $1.001 endpoint - Lleadsuperstore.netSocial & people
LeadSuperstore.net verified external SMB & B2B prospect feed enriched with Core Web Vitals, WCAG 2.1 AA, JSON-LD & /llms.txt flaw diagnostics ($0.25 USDC per 10-lead batch).
Baseleadsuperstore.netfrom $0.251 endpoint - Landing en 24hSocial & people
Validate an Argentine tax ID (CUIT/CUIL): checks length, prefix and modulo-11 check digit offline, and returns normalized and formatted values plus entity type (person/company). Send {cuit}. Nothing is stored.
BasePolygonlandingen24h.comfrom $0.00118 endpoints - CCrypto Microdata for AgentsSocial & people
Live Korea kimchi premium: Upbit KRW vs global USD for BTC and ETH, plus USD/KRW FX. Korea crypto arb/sentiment signal. Optional symbols=BTC,ETH filter. Alias: /kr/kimchi-premium.
Basekr-x402-mvp.kgy5612.workers.devfrom $0.00163 endpoints - KKlearFlow RelaySocial & people
Inspect a real business revenue opportunity using KlearFlow scoring and revenue-leak economics.
Baseklearflow.vercel.appfrom $0.0051 endpoint - ipv4.fr network toolsSocial & people
HTTP response headers of a public URL (HEAD request, redirects reported, not followed).
Baseipv4.frfrom $0.00214 endpoints - Iis-ip-alibabaSocial & people
Bulk is ip tencent: up to 20 ips in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.
Baseip.intel.rallylive.cafrom $0.0116 endpoints - IInjectScanSocial & people
Prompt-injection scan for text your AI agent is about to read (web pages, emails, tool output, MCP tool descriptions): risk score 0-100, verdict, categories and exact spans. Detects instruction overrides, jailbreak personas, system-prompt extraction, fake chat delimiters, data-exfiltration URLs, tool hijacking, hidden Unicode and encoded payloads. Deterministic rules, no data stored.
Baseinjectscan.agentgate.workers.devfrom $0.0031 endpoint - Iia.vonenzobaschello.comSocial & people
Identity Alchemy chart summary — full multi-system identity profile: Big Five numerology, Big Six astrological positions, four-way archetype (primary/secondary/shadow/compensating) and colour alchemy. Requires birth date, time and geocoded location.
Baseia.vonenzobaschello.comfrom $0.052 endpoints - HHirePulseSocial & people
Detect website technologies, ad pixels and DNS signals from a home page, HTTP headers, cookies and up to two public Google Tag Manager containers. Single domain. No browser JavaScript execution. Blocked, unreachable and nonexistent websites, and pages where no technology was detected (no_signals), are not charged.
Basehirepulse-gateway.hirepulse-commerce-sandbox.workers.devfrom $0.013 endpoints - Ggibai.appSocial & people
Bitcoin and digital-asset adoption scores for the world's 100 largest banks, as CSV. Answers questions like: does a given bank offer Bitcoin custody or trading, how has its position changed, and which banks lead. One row per scoring change since the index began, each with the bank, the activity (custody, trading, stablecoins, tokenization and 12 more), old and new values, a reason, a primary sourc
Basegibai.appfrom $0.015 endpoints - Ffunding.payforapi.comSocial & people
Live and historical crypto token prices (BTC, ETH, SOL, any symbol, CoinGecko id or chain:0x… address) — USDC on Base
Basefunding.payforapi.comfrom $0.0056 endpoints - Fformo.x402.paysponge.comSocial & people
Service: Formo (https://formo.x402.paysponge.com/v0/profiles/0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)
Baseformo.x402.paysponge.comfrom $0.051 endpoint - RReadr HTTPCheckSocial & people
HTTP endpoint health checker: follows the redirect chain of any URL, reports per-hop status codes, total timing, final URL and response headers. Query params: url (required), maxHops (optional, default 10).
Basefailure.zo.spacefrom $0.00032 endpoints - Eexpertlawforum.comSocial & people
Publish a compliant English (en-US) or Spanish (es-US) Legal, Personal Injury, Criminal Defense, DUI, or Immigration authority article on ExpertLawForum.com with LegalService JSON-LD & Ed25519 receipt ($1.00 USDC).
Baseexpertlawforum.comfrom $1.001 endpoint - EEVM WatchdogSocial & people
EVM Watchdog: npm/Foundry dependency advisories split by on-chain vs toolchain surface, plus known Solidity bug-class leads, for a public GitHub repo. A scan, not an audit.
Baseevm-watchdog-scan.fly.devfrom $0.014 endpoints - Eenrich-domainSocial & people
Return RDAP registration, subdomains, and HTTP headers for a domain.
Baseenrich.node01.orgfrom $0.011 endpoint - Eenrich-b2b-account-firmographicsSocial & people
Company-Enrich Autonomous B2B Account & Firmographics Node: Enriches corporate domains with firmographics, technographics, and executive OSINT.
Baseenrich.agentdiet.devfrom Free1 endpoint - Ddeal-radar-x402Social & people
Recent SEC Form D private-placement filings parsed into scored leads (0-100 with reasons): issuer, website and domain when EDGAR has one, industry, related persons and roles, offering amount, amount sold, amount remaining, investor count, use of proceeds, placement agent / broker-dealer with CRD, fund vs operating company, and the sec.gov filing link. Missing values are null. Up to 25 leads per ca
SolanaBasedeal-radar-x402.vercel.appfrom $0.012 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.