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.
pumpdata
pump.fun base rate for Solana memecoins: how many coins first traded inside a market-cap band (e.g. $15k-28k) in a window and the share that reached…
qr-api-production-1836.up.railway.app
Generate a QR code PNG (returned base64-encoded in JSON) for any text or URL using default black-on-white styling.
QuantX402
Prediction markets: active prediction markets matched to BTC, ETH, SOL (price-level and touch markets) or MACRO (Fed decisions, US CPI) with the…
Wicked Registry
List and search scored x402/MCP tools
RemittancePulse
Best exchange rate and FX margin for money transfers: live mid-market rate vs provider markups for real-cost analysis. What recipient actually gets,…
router.forgemesh.io
Search x402 service registry — broad q search plus health, score, category, tag, and tags filters
Phoenix Zero Safe Check
Boolean pre-flight check for L2 transaction safety across all 12 chains (?chain= param, default: base). Returns safe=true/false with reason code.…
ScentPulse
Fragrance layering guide — combinations that work, application order, and resulting character, drawing on Gulf attar/oud layering culture and Korean…
ScrapeCheck
Checksum tier (deterministic, no LLM): verifies the exact bytes served at a public URL hash to a claimed sha256, by independent double re-fetch. Use…
scribe.vimabrosta.com
Look up a domain: registration data from RDAP (registrar, created, expires, status, nameservers), live DNS records (A, AAAA, MX, NS, TXT, CNAME),…
SeniorPulse
International state pension intelligence: eligibility, amount, and claiming-timing guidance for public pension systems worldwide. Deep coverage for…
sicher.halowerk.com
Providers each build their signing string differently — some sign only the body, others prepend a timestamp, an id, or a version marker in a fixed…
stable-domains-git-ben-upgrade-agentcash-r-bb6a65-merit-systems.vercel.app
Check domain availability and current registration price.
TablePulse
Head-to-head board-game comparison — mechanics, complexity, replayability, and a use-case-specific verdict for 2-4 titles, grounded in current web…
thevaultreport.com
CFTC Commitments of Traders — weekly disaggregated futures positioning by commodity: managed-money long/short/net, producer-merchant, swap-dealer,…
TradePulse
US trade-flow + tariff signal by commodity
TradePulse
Incoterms 2020 decoder for trade and import-export agents. Returns a plain-English explanation of any Incoterm with buyer/seller obligation split,…
TravelPulse
Flight compensation eligibility across 7 regimes — EU261, UK261, Canada APPR (incl. s.20 denied boarding), Brazil ANAC 400, Turkey SHY, India DGCA,…
TruthPulse
International FOI search for researcher and FOIA agents. Finds public records and files freedom-of-information requests in 15+ countries: UK,…
Verifiable Random Tools
Verifiable Random shuffle — a uniform Fisher-Yates permutation bound to a future drand round the server waits for (typically 3-6s) and verifies…
agent-reader
Did it happen? Check whether a prediction market event has settled on Polymarket or Kalshi and get the resolved outcome, resolution time, source and…
nsgoods Solana Payment Check
Did this Solana payment really arrive? Verifies that a finalized mainnet transaction credited the exact amount of a token to the payee. Signed…
Problocks
Verify payment connectivity with USDC on Base. Returns a JSON pong and UTC timestamp after settlement.
ZoningVerdict
Address-to-zoning lookup for published municipalities. Coverage: 64 municipalities in 6 states. Resolves a street address to supported municipality…
agent-safety-oracle.iykykblog.workers.dev
Trust check for any x402 pay-per-call API URL. Live-probes the target: verifies a valid 402 payment challenge, consistency between the challenge and…
AgentDrives
Find the SaaS tools and APIs an AI agent can use on its own for a task, such as "send an invoice". Each result gives the tool's agent level (0 to…
AgriPulse
Full agricultural commodity report with AI summary
Agent Watch
Trust check an npm package before an agent installs it: typosquat screen, deprecation, package age, maintainers, weekly downloads, source link.
AIS Fleet
Get the latest available AIS Fleet vessel position for a 9-digit MMSI, observed within the prior six hours. The response includes observation time,…
Anyway Possible Base Balance
Live Base wallet balance for AI agents. Returns native ETH and Circle USDC balances, atomic values, block height, contract address, and observation…
api.agentinternetruntime.com
SDK capabilities query ($0.01/request direct, or $0.003/request via Session Ticket at /v1/billing/tickets)
api.agentnewsstand.com
Latest US macro indicators (CPI/NFP/U3/oil) with release flags
CompliAPI
Screen a website URL or domain against OFAC SDN and other global sanctions lists. Call before paying, advertising on, or integrating with a website…
Keenable
Keenable page fetch for AI agents: the page at a URL as clean markdown with title and description. Pay per request, no API key.
Lightning AI Visibility Data
AI Visibility - Banking - Argentina 2026 (Visibilidad IA - Banca - Argentina 2026). Full study in one call: question-universe design, 214 raw AI…
api.lucasnode.app
Quick research: ask any question, get a concise sourced answer with key points, sources, a confidence rating, and anything that could not be verified.
M2M Sentinel
How deep is liquidity for tracked Base tokens and how much is actually trading, with the source named, for sizing an order or declining one.
api.speccy.cloud
Top Polymarket prediction markets by 24h volume. Returns up to 50 markets with id, question, slug, volume, volume24hr, liquidity, endDate, outcomes…
banking-compliance-production.up.railway.app
Search the federal banking compliance rules database. 56 rules across Reg DD, Reg Z, UDAAP, ECOA, BSA/AML, and more.
Bitwise AND
Bitwise AND across two or more non-negative integers (given as decimal strings, evaluated as arbitrary-precision BigInt). Returns the result in…
BuildPulse
Subcontractor intelligence for GC and contractor agents. Returns market rates, scope of work, a bid checklist, and contract terms for hiring subs.
cc0.company
cc0.company — x402 agent-services marketplace on Base (USDC): CC0 image generation, market-data digests, and third-party agent tools. This endpoint:…
EAN / UPC / GTIN check
Validate a GTIN barcode number — EAN-8, UPC-A (12), EAN-13 or GTIN-14 — by the standard mod-10 check digit. Length selects the scheme.
claim-grounding.prospectintel.workers.dev
Extract claims. Splits text into atomic, checkable claims with character spans, grounding_required, claim_type…
Validate a card number
Validate a payment-card number: Luhn check-digit test plus network detection and length check. A syntactically valid number that fails Luhn returns…
DataForAgents
DataForAgents — Steam catalog search for agents (name, genre, price filters)
defi-signals.org
Cross-venue perpetual funding rates (OKX, Kraken Futures, dYdX) for any major token. Per-venue annualized rates plus the cross-venue spread in…
EconSignalPulse
Economic impact of sanctions regimes via satellite, shipping AIS and alternative signals — Russia, Iran, Venezuela, DPRK and all OFAC/EU/UN…
finance.toonhaus.dev
Trending symbols
FundingRates
Full funding rates — all assets, all exchanges, signal analysis
GeopoliticalPulse
Rapid geopolitical event assessment for trading, risk, and intelligence agents. Maps cascading implications across diplomatic, economic, military,…
AUROS Agent Watch
Paid agent-market intelligence pack: demand board, content briefs (LinkedIn/newsletter/journal), monetization plays, RWA context. Freemium board is…
gibai.app
The world's 100 largest banks ranked by Bitcoin and digital-asset adoption, from the Global Institutional Bitcoin Adoption Index. Returns every bank…
Exchange Trading Calendar
Use when an agent needs to know if a stock exchange trades on a given day (default today) before scheduling orders, reports or alerts. 28 exchanges…
hexscan.xyz
Is this token safe to buy? Honeypot check -- can the token be bought but not sold? Fast honeypot detection for ERC-20 tokens.
free-books-1820s
Free books first published in the 1820s: public-domain works dated 1820-1829 in the catalogue (Internet Archive scans and dated Gutenberg editions),…
Liquidations
Full liquidation report — all assets, long/short breakdown, hot zones
material.halowerk.com
Multiplies the copper quantity by literature emission factors for the chosen secondary route and for primary cathode production, and reports the…
Court Delta Pro
Look up a North Carolina (NC) court case or traffic citation and get its status, hearing dates, charges, party roster and counsel, dispositions,…
MealPulse
Ingredient substitute finder / what can I use instead of X / cooking swap calculator. Takes an ingredient and the reason (out of it, allergy,…
money-mind-extract.onrender.com
Fetch a web page three independent ways (rendered, static, second-render cross-check), confidence-scored, with a tamper-evident attestation. Refuses…
Note parse
Parse a note in scientific pitch notation (e.g. "A4", "C#5", "Bb3") into its letter, accidental, pitch class (0..11), octave, MIDI number and…
predator-ubuntu.taild9a745.ts.net
Small utilities: time, hashing, encoding, math
predict.memoryapi.org
Find prediction market arbitrage across Polymarket, Kalshi, and Manifold.
prediction-bot-iggf.onrender.com
Live X (Twitter) sentiment for any Polymarket or Kalshi prediction market. Pass the market question as q; Grok reads the last 3 days of X posts and…
Pro Yield API
Live Pro Yield yield intelligence: curated stablecoin lending venue rates with safety tiers, the vault blend target, fixed-pool and satellite sleeve…
rekt-ceo-brandification.onrender.com
List Rekt CEO meme templates from the Brandify catalog
Scan text for leaked secrets
Check up to 50 CVE IDs against CISA's Known Exploited Vulnerabilities (KEV) catalog. Returns membership, vendor/product, exploitation evidence,…
screenshot-api-production-fe7e.up.railway.app
Render an http(s) URL to a PDF (A4/A3/Letter/Legal/Tabloid) with print emulation; returns a JSON envelope with the PDF base64-encoded under…
stat.halowerk.com
Reports the credit-to-GDP gap for a country, which is the deviation of the credit ratio from its long-run trend and the quantity the Basel framework…
Stock Bloc
What changed in a company's latest 10-K or 10-Q risk factors vs the prior filing: added, removed and changed items with quotes, key XBRL financial…
SupplyChainPulse
Full supply chain report — shipping rates, BLS PPI, NY Fed GSCPI, AI summary
TikTok Automation
List the TikTok accounts your wallet owns, with session health.
code402 Chain Data
Latest Ethereum block height
visual.hugen.tokyo
OCR extraction from scanned PDF documents (English). Uses Tesseract to read text from image-based pages that have no embedded text layer. Returns…
vps.phoneagent.xyz
VpsAgent — rent disposable VPS compute via x402, no signup required. Two product lines: ephemeral sandboxes (1h / 6h / 24h, 1 vCPU / 1 GB RAM / 25…
wAILand Disaster Signals
Call this when an agent needs current significant global disaster events — e.g. before routing logistics or assessing exposure. Returns ALL matching…
x402-defi-signals.onrender.com
Top DeFi yield opportunities per chain from DefiLlama — TVL-filtered, outlier-cleaned (unsustainable meme-pool APYs removed), sorted by APY. Fields:…
CVE / Vulnerability Lookup
CVE lookup and vulnerability search — resolve a CVE ID via OSV and return summary, severity, affected packages, and references for agent triage.
agent.memoryapi.org
Browse ERC-8004 registered AI agents on Base. Filter by x402 payment support.
alest.io
On-chain state of ALST, the alest.io token for a tokenized Tesla Cybercab robotaxi (real-world asset). Name, symbol, decimals and total supply read…
almanac.locomot.io
Deterministic citation formatter — APA 7, MLA 9, Chicago 17 author-date, BibTeX. From structured fields, returns the reference entry…
AARN Web Read
Read one public webpage URL and return clean, LLM-ready Markdown or plain text. Designed for AI agents that need webpage contents, RAG context,…
Automaton Media APIs
URL to Markdown for LLM agents and RAG: send a web page or PDF link, get its main content as clean Markdown (title, author, language, word count)…
WickedAPI Trading Data API
Binance long/short ratios: global account, top-trader account, top-trader position, and taker buy/sell. Companion to funding-oi.
api2ls.com
Get live EVM gas pricing with EIP-1559 breakdown and USD cost estimates
audit-site-web.pga-agent.fr
Smart-contract inspection for any Base token address: which functions exist (mint, pause, blacklist, owner-only), proxy type and admin, verified…
canary.countersignpay.com
Current Base mainnet block height and base fee per gas in wei, read from the chain at request time
ChronicaPulse
Chronological timeline for genealogy and research agents. Returns a narrative for a person, place, or topic across historical newspaper archives.
compute.memoryapi.org
Rent-and-mine arbitrage: GPU rental cost vs best mining revenue.
Convert Guru File Type Detection
Detects the likely real file format from filename, file creation time, file size, and the first 200 bytes of the file. Identifies common formats…
crypto-sentiment-x402.onrender.com
Real-time crypto sentiment for a ticker symbol (e.g. BTC, ETH, SOL) from 9 crypto news RSS outlets (CoinDesk, Cointelegraph, Decrypt, Bitcoin…
Query JSON with JMESPath
Evaluate a JMESPath expression against a JSON value and return the selected/projected result. A malformed expression is rejected before payment.
BSM Price+Greeks
When to use: you already have model inputs (S or forward mark, K, T, r, σ) and need fair value + hedge ratios — not market-premium IV. European BSM…
econdash.org
EconDash economic data API (M2M)
EduPulse
Student-loan fix screen: routes a problem to the correct legal lane — federal false-certification or closed-school discharge (34 CFR…
Beehive AI Engine
Utah County, Utah (USA) planning-commission land-use hearing items parsed from official Utah Public Meeting Notice agendas. Verbatim agenda text…
entropy.rip
Generate cryptographic random bytes
Evidence402
Extract published JSON-LD and optional CSS-selector fields from a public static HTTPS page. Use for product data, organization metadata or…
Code security scan
Static security scan of a code snippet. Finds hardcoded secrets (AWS keys, private keys, API keys, DB connection strings with passwords), eval/exec,…