Explore APIs
Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
- Projects
- 4.4K
- Paid endpoints
- 87K
- Paid calls · 30 days
- 885K
- Launched here
- 0
All projects
2,776 results- NNanoParseSearch & web
Fetch a web page and return clean Markdown with Litmus intelligence. Requires payment of $0.005 USDC per page.
Basenanoparse.appfrom $0.0051 endpoint - MMekler AIMarkets & finance
Check one email address or domain. Report common address syntax, MX or null MX and A/AAAA fallback, SPF, exact-domain DMARC and optional caller-supplied DKIM selector records, and a small known disposable-domain list. DNS failures remain unknown. Does not verify a mailbox or predict delivery.
SolanaBaseapi.mekler.aifrom $0.002840 endpoints
AgentUtility.aiImages, audio & videoSearch Hacker News for startup news, YC news, Show HN launches, and founder discussion through the Algolia HN index. Send a query, then filter stories, comments, or polls by author, minimum points, and ISO-8601 date range; sort by relevance or newest first. Returns titles, authors, points, comment counts, timestamps, URLs, and matching text. Use it as a startup news search API, YC news search, Sho
BaseSolanax402.agentutility.aifrom $0.00137 endpoints- AAI Open ModelsImages, audio & video
OpenAI-compatible LLM inference and chat completions across seven open-weight reasoning, coding, and vision models. Choose Kimi K3, Qwen3.6, Qwen3.8, GLM-5.2, GLM-5.3, GLM-5.3-Flash, or DeepSeek V4.1 Flash. Use them to generate text or JSON, analyze images, and call client-provided tools. Supports up to 4 images and selectable reasoning controls. Pricing is quoted dynamically from the prompt and m
Baseapi.ai-open-models.comfrom $0.00211 endpoints
Messy VirgoCrypto & DeFiCrypto news that moves markets, already triaged: each six-hour window Messy Virgo dedupes the headlines, keeps the items that matter, scores their market impact and adds a news score, verdict and summary. Feed current events into market analysis or a trading agent without scraping feeds. Refreshed four times a day.
Baseapi.messyvirgo.comfrom $0.017 endpoints- Ssignal-engine-production-d88d.up.railway.appOther services
Individual arena strategy signal
Basesignal-engine-production-d88d.up.railway.appfrom $0.00113 endpoints
Horizon PulseImages, audio & videoCrypto market data: a current USD price snapshot for BTC, ETH and SOL, or one coin via symbol= (bad symbol: 400), for quick market context. JSON per asset: priceUsd, change24hPct, momentum; plus overall momentum, sentiment, direction, avgChange24hPct, asOf. Prices from Coinbase Exchange, CoinGecko fallback (source field). Labels are fixed rules on 24h change, not a forecast and not financial advic
BaseSolanaxrpl+1horizonpulse.devfrom $0.00236 endpoints- Ffanfare.runOther services
All 30 NBA teams with ID, city, abbreviation, conference, and division. Use team IDs to query schedules and standings.
Basefanfare.runfrom $0.00124 endpoints - Ddefi.hugen.tokyoCrypto & DeFi
List all blockchain networks supported by this API's security scanning — Ethereum, BSC, Polygon, Arbitrum, Base, Optimism, Avalanche, Fantom, Solana, and 20+ chains with chain IDs and names. Accepts USDC payments on Base and Solana
BaseSolanadefi.hugen.tokyofrom $0.0111 endpoints
Otto AICrypto & DeFiImportance-ranked crypto headlines with per-article source links and publish times, plus a sentiment-scored market brief. Regenerated hourly; meta carries the snapshot's age and a fresh/stale verdict.
BaseSolanaEVM chain 5042+2api.aidress.aifrom $0.00114 endpoints- Aapi.reloadpi.comOther services
Reloadpi — List available regions for mobile top-up services
Baseapi.reloadpi.comfrom $0.00112 endpoints - PPulseScannerCrypto & DeFi
Validators grouped by withdrawal address, or blocks grouped by the graffiti they carried. PulseChain (chain id 369). $0.003 USDC per call.
Basex402.pulsescanner.iofrom $0.00346 endpoints - AAgent MercantileCrypto & DeFi
Determine whether the bounded normalized representation of one public HTTPS webpage has changed since a caller-held baseline. Returns fingerprints and change status, not continuous monitoring, alerts, webhooks, semantic importance, AI summaries, or site-wide crawling.
Baseapi.agentmercantile.comfrom $0.00511 endpoints
TenjinAI & agentsTenjin's tool router. Send a turn's bounded conversation packet, or a one-line query, and get which pay-per-call x402 service fits the step, if any, with its spec to fill and pay yourself. Quotes $0.003 and charges $0.001 per answer from a completed routing gate; an answer made without one settles at $0. batch-settlement only. Agent guide: https://tenjin.sh/llms.txt
Basetenjin.shfrom $0.0032 endpoints- Aapi.printmoneylab.comCrypto & DeFi
Korean exchange prices (Upbit, Bithumb) for a single token in KRW
BasePolygonSolanaapi.printmoneylab.comfrom $0.0019 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 - GGrokzilla x402 Micro PayCrypto & DeFi
Estimate whether text (or a web page's text) is AI-written using a trained classifier: about 78% accurate on a held-out benchmark (not a guarantee). Uncertain results suggest a rerun on a longer section (300+ words); tell phrases are only a secondary 'possible AI influence' signal.
Basegrokzilla.shopfrom $0.00140 endpoints
CoinGeckoCrypto & DeFiSearch onchain DEX pools and token, by contract address, name, or token symbol.
BaseSolanaPolygonpro-api.coingecko.comfrom $0.00532 endpoints- MMart402Images, audio & video
Web extraction for AI agents: URL to clean Markdown + metadata, automatic JS rendering, robots.txt respected. No API key. $0.005 fast / $0.01 rendered; cached results half price (this 402 quotes the exact amount).
Basemart402.comfrom $0.00127 endpoints - Ssovereign-x402-zeta.vercel.appSearch & web
Scrape a URL and return clean Markdown (via Firecrawl). Priced above Firecrawl's own per-scrape cost.
Basesovereign-x402-zeta.vercel.appfrom $0.00130 endpoints - Hhcrb.inOther services
Validate IBAN structure and MOD-97 checksum. Does not establish account ownership, beneficiary identity or absence of fraud.
BasePolygonAvalanche+2hcrb.infrom $0.00546 endpoints
DeepAIImages, audio & videoApplies AI edits to an image guided by a text instruction. Pass the image as a URL and the edit as text. Choose the quality tier with image_generator_version: genius or super_genius for the highest detail at 2k output. The genius tier also takes an art style in genius_preference: classic, anime, photography, graphic, or cinematic. Returns a link to the edited image.
Basedeepai.pay.zeroclick.iofrom $0.0124 endpoints- Oopendata402Markets & finance
Official monthly inflation (HICP, annual rate of change, all items) for EU countries, the euro area and the EU from Eurostat. Give a country code (NL, DE, FR, EA20, EU27_2020) and the number of recent months. Use it for price indexation, wage or rent adjustment and economic context. Eurostat data, CC BY 4.0; values unchanged.
BasePolygonArbitrumopendata402.comfrom $0.00145 endpoints - Eedgar.openverbs.comMarkets & finance
Read a single XBRL financial concept for a company (by CIK or ticker) from its as-filed statements. Give the concept's XBRL tag (e.g. Revenues, NetIncomeLoss, Assets, EarningsPerShareDiluted) and optionally the taxonomy (default us-gaap, also dei). Returns the label and, per unit (USD, shares), recent datapoints with period end, value, fiscal year/period, form, filing date and accession. Bounded,
Baseedgar.openverbs.comfrom $0.0064 endpoints
PalmyrSocial & peoplePalmyr: POST /social/twitter/unfollow
SolanaBasepalmyr.aifrom $0.00124 endpoints- Mminia2a.ukDeveloper tools
Convert a byte count to a human-readable size (B/KB/MB/GB/TB/PB, 1024 steps, 2 decimals). Input: bytes.
Baseminia2a.ukfrom $0.00593 endpoints - Xx402 settlement checkCrypto & DeFi
x402 settlement check. Get proof a wallet can finish 402, sign, settle, and read the result on Base, plus an echo and a signed Ed25519 receipt. Check the receipt with the published key. $0.01 USDC. Optional ?echo= comes back in the body. Includes a signed Ed25519 receipt you can check with the published key.
Baseaizamon.comfrom $0.00326 endpoints - Ffractalai.net.coCrypto & DeFi
Signed attestation of an Aave V3 position's liquidation risk right now: health factor, debt, collateral, risk tier and the observation time, read live from public RPCs by the FractalAI MIDAS scanner across 6 chains and signed with ML-DSA-65 (NIST FIPS 204). Publicly verifiable by receipt id at /api/midas/alerts/receipt/<id> and in-browser at /midas/proof — proof of "what was seen, when", not a liq
BasePolygonArbitrum+2fractalai.net.cofrom $0.00510 endpoints - MMN Rental License CheckAI & agents
Minneapolis rental license check — is this property licensed? Property due diligence agent for Minneapolis Minnesota (Hennepin) housing compliance open data. GET ?address= (street 1-120 chars) → compliance_verdict (licensed_clean|licensed_with_violations|unlicensed|condemned_or_boarded), rental license status/tier/units/expiration, violation cases, condemned/boarded. Live City JSON. Tenant screeni
Basex402-mcp.onrender.comfrom $0.0121 endpoints - Oo1.exchange via vAPICrypto & DeFi
Hosted by vAPI for o1.exchange: Get details for one tracked launch token.
Baseapi.vapinetwork.aifrom $0.0023 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.