x402 Pay-Per-Call APIs for AI Agents
Pay-per-call APIs that use the x402 protocol: the server answers HTTP 402 with payment details, and an agent pays per request, usually in USDC, without an account or API key. Entries come from a public x402 discovery index, and each provider sets its own price.
api.printmoneylab.com
Korean exchange prices (Upbit, Bithumb) for a single token in KRW
Web Search, News & Page Reader
Real-time web search for AI agents — search the web and get ranked SERP-style results as clean JSON: title, URL, snippet, relevance score, optional…
x402factory.ai
Base X profile mini-endpoint. Fetches a full X profile and the 10 most recent tweets for a given handle, returning the raw profile data plus a…
Solana Account Snapshot
Call before moving funds on Solana: decision-grade account snapshot — kind; mint decimals/supply/authority; whole-account balance and recent…
defi.hugen.tokyo
List all blockchain networks supported by this API's security scanning — Ethereum, BSC, Polygon, Arbitrum, Base, Optimism, Avalanche, Fantom,…
twitr.sh
Search X/Twitter tweets with the full operator set — keyword, exact phrase, from-user, language, date range, media type, minimum likes/retweets,…
api.blockscout.com
Access to api/v2/addresses/:address_hash/token-transfers. List token transfers involving a specific address with filtering options
loophole tape
New Solana tokens as they launch on pump.fun: a cursor feed of new memecoin launches with rug probability and graduation odds ($0.001 per poll). Use…
Barker
Query real-time stablecoin supply yield pools from Barker's index of 500+ DeFi protocols. Returns ranked rows with protocol_name, chain_name,…
buero.halowerk.com
Import report: count rejection reasons independently of DNS latency. Reuses the existing email-list-clean motor. No SMTP probes or mailbox…
News search
News search: live Google News results for a query, localised by location and language. Returns ranked articles with title, URL, domain and, where…
Aether
Wallet balance on Base: the native ETH balance of any address, read live from the chain. Input: address
AllTheBot Wallet balance (Base)
Wallet balance and ERC-20 token balance on Base: live ETH, USDC and up to 5 ERC-20 balances of any address, read from Base mainnet. Pre-flight…
api.signalfuse.co
Web search via Brave Search API
chainverdict.xyz
Latest Base block: number, timestamp and hash. The cheapest call on the service — useful as a liveness and connectivity check.
Mart402
Web extraction for AI agents: URL to clean Markdown + metadata, automatic JS rendering, robots.txt respected. No API key.
agentpaystore.com
Travel planning and live booking research: destinations, itineraries, and quotes payable in USDC.
Agent Web-Access
Read any live web page as clean, LLM-ready text. Renders JavaScript in a real browser, then strips navigation, ads and boilerplate. Use it when a…
www.tradepilotusa.com
Review supplied schema/sample rows for quality issues and propose specific validation rules and correction actions. Uses buyer-supplied information…
Ethereum
Check this CA: Ethereum mainnet ERC-20 verdict of a token contract address. Not financial advice. Returns: an AI-written token verdict on one token…
OnchainPulse
Honeypot check, half a cent: can this token actually be sold? Simulated buy+sell verdict, buy/sell/transfer tax, mint authority, ownership…
api.oassis.dev
Lists a site's urls, from its sitemap and its page.
api.clawfetch.ai
Web scraping / URL fetch: retrieve any web page and return clean, LLM-ready markdown text. Strips boilerplate, ads, and navigation. Stealth HTTP…
voice.forgemesh.io
Text-to-speech synthesis in 1 of 10 standard voices (5 male M1-M5, 5 female F1-F5) across 31 languages, up to 500 characters, returned as inline WAV…
NanoParse
Fetch a web page and return clean Markdown with Litmus intelligence. Requires payment of $0.005 USDC per page.
Treza
Text to speech: send text, get a natural voiceover MP3 back in the same response. ElevenLabs Eleven v3 (expressive, takes [whispers]-style…
Apify
Apify is the largest and most trusted marketplace of tools for web scraping, crawling, data extraction, and automation. Use these tools, called…
Livecheck
Is this job posting still open? POST {"url"} with one specific job posting URL (Greenhouse, Lever, Ashby, Workday, or a company careers page).…
ENS Text Records API
Read an ENS name's address plus its text records (avatar, url, email, description, com.twitter, com.github and more) in one call, live from the…
HALOWERK Agent Tools
Nimmt jede Schreibweise, erkennt die Landeskennzahl aus 150 Vorwahlen, ergaenzt bei nationaler Schreibweise das Standardland, zerlegt in Vorwahl und…
handel.halowerk.com
Takes a warehouse as a table and returns a placement. You supply the storage locations with their walking distance to the pick-and-drop point and,…
Minifetch Technical SEO API
Cheap robots.txt preflight check before you call the Minifetch /extract and /run/seo-page-audit endpoints: returns whether Minifetch may fetch a…
Crypto Market Data
Real crypto market data in one batched call: price, market cap, market-cap rank, 24h volume/high/low/change, circulating/total/max supply, and…
[Deprecated] 17711 Websearch
[Deprecated - use websearch_search_web] Enqueues a websearch_search_web job and returns a task id immediately
Locus x402 Services
Locus public pay-per-use API
Web Page Scraper
Fetch any public web page and return clean main content as JSON: title, author, publish date, hostname, excerpt, full text, and word_count.…
glim.sh
Search users by keyword
api.interzoid.com
Generate an AI-powered similarity key for individual/person name matching. Handles variations like 'Bob Smith', 'Robert Smith', 'Smith, Robert J.'…
d21 crypto_news
Crypto News ($0.001 -- matches the category-leading incumbent's price exactly): fixed, no-required-params crypto headline feed -- a drop-in-shaped…
Grokzilla x402 Micro Pay
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).…
stable-people-data-git-pdl-signoz-usage-alarms-merit-systems.vercel.app
PDL Company Enrich - Enrich a company record with firmographics, industry codes, funding, and social profiles. Supports lookup by name, website,…
Vibe Springs
Real-time BTC/USD price feed oracle. Retrieves live spot rate, 24h high/low, and volume directly from Coinbase Exchange.
CanaryGuard 402
Deterministic prompt-injection firewall and honeypot scrubber for AI agents. Sanitizes untrusted text and blocks detected wallet-draining commands…
Horizon Pulse
Crypto price API: BTC, ETH and SOL spot prices in USD in one GET, no parameters. Returns JSON: assets.BTC/ETH/SOL with priceUsd, change24hPct and…
URL Metadata Fetcher
Use to fetch page metadata from a URL: title, description, Open Graph, favicon, HTTP status, and content type. Optional main-content text. One URL…
archtools.dev
Parse RSS/Atom feeds into structured JSON. Pay per call with USDC (x402) or credits - archtools.dev
Solana Account Snapshot
Call before pricing or settling a crypto payment: live spot prices for one or more coins by CoinGecko id (USD price, 24h change, market cap) from a…
modelprices.xyz
Together AI pricing table: per-token cost of every AI model Together AI serves, in one call — input, output, cache and batch USD per 1M tokens,…
Otto AI
Importance-ranked crypto headlines with per-article source links and publish times, plus a sentiment-scored market brief. Regenerated hourly; meta…
Messy Virgo
Crypto macro regime in one call: a 0-100 Messy Virgo macro score and risk regime built from 20 indicators (global liquidity, Fed balance sheet, spot…
Signal Oracle
Full stored detail for a single SEC EDGAR merger / acquisition agreements filing by accession number (entityId like 'edgar:0000320193-26-000064') —…
Brazilayer Commodity Signals
Causal chain for arabica coffee: minimum temperature forecast 72h ahead over the southern Minas belt (frost is the event that historically moves KC…
Remix Project
AI-powered smart contract audit checklist matching - analyzes contract code and returns relevant security checklist items. Returns immediately (202…
Agent Utility Suite
Read any public URL as clean Markdown for an LLM: articles, docs, product pages, news, PDFs (text by page), RSS feeds and JSON. Real tables, code…
SCVD General Store
Spot Check. REQUIRES ?host= on the paid request — a signed request without it is refused before the gate and no money moves. Name a host and get…
x402.swaphunt.dev
SwapHunt — a crypto market-context toolkit for trading agents: live prices, market regime, volatility, sentiment, funding, macro events, seasonality…
1gateway
Use when scheduling across time zones or turning a local time into UTC without guessing DST. Input: to (IANA zones or KST, PST, CET...), optional…
api.newsgurus.ai
News Gurus Intel API — token authenticity verdict for one Solana mint: 0-1 realness score, confidence, recommended action (PASS / SMALL_SNIPER /…
opendata402
Dutch address search and geocoding from the official BAG register via PDOK: free-text query (street, number, postcode, town) returns up to 5…
api.automaton-sovereign.workers.dev
Automaton-Sovereign Value API call
x402.pokt-agent.com
South Korea's exports from Korea Customs Service statistics: 10-day provisional totals, change vs prior month and year, major items, HS codes and…
GitHub Status Check
Check GitHub's official status source for current incidents, component health, and scheduled maintenance before an agent retries, deploys, or…
agentum.lat
Mesmo dado do /taxas-brasil (Selic, CDI, dólar comercial) — rota técnica liquidada pelo Facilitador CDP da Coinbase, só pra indexação no…
Duo Data Utilities
Spell a number out in words in English, Dutch, German, French, Spanish, Italian, Portuguese, Polish, Russian, Turkish, Swedish or Japanese, in…
Macaroon Network
Current block number and gas price for Base and Polygon mainnet, fetched live via RPC on every call. Unlike this catalogue's corpus-search listings,…
Palmyr
Palmyr: POST /social/twitter/unfollow
ForwardLane
BM25 plus vector search with reciprocal rank fusion over Function and Class nodes, with repository, domain, ontology concept, confidence, and…
api.x402lint.dev
Paid ($0.05). ALWAYS runs a fresh 25-check scan of the origin (non-settling GET/HEAD + benign empty-POST probes), bypassing the 24h cache — use free…
Cyre
Cyre Bazaar Scan — before you pay a new x402 / Agentic Market skill, probe the resource URL, forensics the 402 offer, and grade payTo. Shopping…
Degenscan Intel
Active Hyperliquid perp markets by dex (main + HIP-3: xyz, io, para, mkts…) and the count of delisted ones. Market data only — not investment advice.
travel.brij.fi
Booking intent creation
x402-gateway-production.up.railway.app
Meta's open-source model — great general-purpose performance at very low cost
LION Verified Company
Cheapest OFAC SDN wallet screen for AI agents ($0.001). AML/KYT pre-pay gate: PASS/WARN/BLOCK before you settle any x402 counterparty. Keyless Base…
api.carbon-cashmere.de
Curated Bitcoin coinbase scriptSig messages (printable ASCII only). Pool tags, BIP-comment campaigns, political statements. Window up to 7d.
Massive
SEC EDGAR master index providing metadata for all SEC filings including form types, filing dates, and direct links to source documents. Can't find…
omniguchi.0000402.xyz
Restore all four needs in one care action. Any verified payer may care for any hatched target.
property.payapi.market
UK HM Land Registry sold property prices by postcode.
TxSim Decoder
Decode raw EVM calldata into a named function, signature and arguments, plus security risk flags (unlimited token approval, setApprovalForAll,…
api.gitbeacon.dev
Paid ($0.01 USDC via x402). Top trending GitHub repos from the latest daily scan, sorted by stars — description, language, topics, license, forks,…
ApiToll SEC Filings
Latest SEC EDGAR filings for any US-listed company by stock ticker or CIK: 10-K annual reports, 10-Q quarterly reports, and 8-K material events.…
x402 Video Intelligence
YouTube video metadata in one call: title, channel name and id, duration, upload date, view and like counts, description, thumbnail URL, the chapter…
x402 MCP Storefront
Should I submit this Base transaction now, and at what fee? One call returns submit-or-wait, max fee per gas and priority fee in gwei (EIP-1559),…
x402 Endpoint Checker
RugRadar: Solana rug check and rug pull checker for pump.fun memecoins, plus BNB rug check / BSC honeypot check (four.meme rug check), Base,…
TBS Weather & Climate API
Complete weather bundle in one call: current conditions (temperature, feels-like, humidity, wind speed/direction/gusts, pressure, cloud cover,…
api.dexl.io
Builds unsigned transaction(s) to sell any token - DexL bonding curve, graduated DEX pair, or any other token with WETH liquidity on the chain's DEX…
api.zendiq.ai
Solana swap triage for AI agents. Returns a Safe / Protect / Refuse verdict for a proposed swap: token risk screening, sandwich-attack exposure, and…
SCRIPTMASTERLABS
Web scraping and extraction credit pack for AI agents: 10 accepted public-URL clean-text reads at a micro-price with no scraper subscription.
Tuski
Create an email validation job from a JSON list of addresses or CSV text (send exactly one). Poll its status, then fetch results as JSON or CSV.…
MimirAPI
Phone number intelligence for agents: pass any number and get back whether it is a valid E.164 number, its country, the carrier that holds it, and…
API Acre
Read the latest Base mainnet block and a bounded EIP-1559 fee history in one RPC batch, including gas utilization and priority-fee percentile samples.
api.reloadpi.com
Reloadpi — List available regions for mobile top-up services
telemost-x402
Telegram content analytics and data extraction: pull structured entities from a channel's recent posts, links, @mentions, #hashtags, $cashtags,…
formwerk.halowerk.com
Prüft am Objekt skript den Befund vorhandene Feldbeschriftung.
FractalAI Pay-per-Proof
Pay-per-Proof: one post-quantum ML-DSA-65 / Dilithium-3 (NIST FIPS 204) signature over your message/hash, x402-native.
SYNTHORA
SYNTHORA github-repo-activity: Activity metrics for any public GitHub repo (input owner/repo): stars, forks, open issues, last push, language,…
Locus x402 Services
Locus public pay-per-use API
CoinGecko Crypto Price & Data
Crypto token price in USD, EUR and more — real-time spot prices for one or many coins by CoinGecko id (bitcoin, ethereum, solana).
Ozmium Agent API
Executable buy or sell of a Coinbase tokenized stock on Base for USDC: ordered { to, data, value } steps (ERC-20 approve when short, then Uniswap V3…
SolSentry
Full risk assessment for an SPL token mint: risk score and level, the flags that drove it, bundle detection, the deploying wallet when it is known,…
ByKaranteli LiqMap Levels
Every $1M+ aggressive market print recorded live from our own trade sockets, with side, price, quantity and notional, recorded since 2026-08-13,…