Catalog

Every agent-payable API.

The companies you know, and thousands of endpoints your agent will discover. The catalog groups the network's 11,000+ payable services under the companies that operate them — one company row can carry many service endpoints. Placement can't be bought.

All APIs

11,174 APIs
APICompanyCategoryPrice / callStatus
Issuers Comment Letters
Issuers Comment Letters — an agent-callable issuers comment letters service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.02 USD per call.
cryptoetfsentinel.com-$0.02listed
Kronos Crypto Data & Forecasts
Full crypto asset snapshot in one call (all 16 assets): real-time Binance spot price, derivatives (funding rate, OI, basis from Bybit/OKX perp), market regime alerts (BTC only). FORECASTS: BTC/ETH/SOL only (Kronos ML coverage). DERIVATIVES DATA: all 16 assets. Bundle replaces 3 separate paid calls — $0.08 vs $0.09 à la carte. For AI agents & trading bots. Live track record at /api/stats: ~54% hit over 15k+ scored forecasts, not a backtest.
kronossignals.com-$0.08listed
Kronos Crypto Data & Forecasts
Cross-venue funding arbitrage signal from real-time 8h-equivalent funding rates on Binance, OKX, Bybit, KuCoin, Bitget and Hyperliquid. Returns the gross and net-of-fees spread between the best short venue and best long venue (gross_spread_bps, net_spread_bps after a 20 bps round-trip fee estimate), spread_8h_normalized, venues_count, per-venue rates with funding_interval_hours, annualized_pct, and an actionability label. All 16 assets. $0.02 USDC via x402.
kronossignals.com-$0.02listed
Kronos Crypto Data & Forecasts
Market-wide screener across all 16 crypto assets in one call. Returns derivatives signals (funding rate, annualized rate, OI 1h change, basis, funding trend, extreme flag) and regime event count per asset. Optional ?assets=btc,eth,sol to scan a subset. One call replaces 16 separate signals calls + 16 alerts calls. $0.04 USDC via x402.
kronossignals.com-$0.04listed
Kronos Crypto Data & Forecasts
Implied volatility surface for BTC and ETH from Deribit options (public API, no auth). Returns ATM IV (annualized %), IV rank and IV percentile from Kronos iv_history (daily cron), term structure (weekly/1m/3m ATM IV + contango/backwardation/flat shape label), 25-delta risk reversal (BS-approximated strikes), 10-delta wing IVs, max-pain strike across top-5 expiries, and a vol-regime label. Falls back to OKX if Deribit is unreachable. $0.03 USDC via x402.
kronossignals.com-$0.03listed
Kronos Crypto Data & Forecasts
Real-time and ML-forecasted Bitcoin (BTC) price. Kronos deep-learning model: up-probability, expected close, price range, p10-p90 quantiles, forward volatility across 1h/4h/24h horizons. Crypto price prediction / price forecast API for AI agents and trading bots. Pay-per-call via x402 on Base USDC. Live track record at /api/stats: ~54% directional hit, ~70% in-range over 15k+ scored forecasts — measured on served predictions, not a backtest.
kronossignals.com-$0.05listed
Kronos Crypto Data & Forecasts
BNB (BNB) price direction forecast. Kronos-base (60-path Monte-Carlo) ML model, cached ~20 min — switched from the composite heuristic 2026-07-10. Measured on predictions actually served: 52.5% directional over 3,700+ scored BNB forecasts. Prior composite record (42.9%/n147) retained at /api/stats. Falls back to the composite heuristic if the cache is briefly stale. Pay-per-call via x402 on Base USDC. Live scored track record at /api/stats — not a backtest.
kronossignals.com-$0.05listed
Kronos Crypto Data & Forecasts
Realized volatility for 16 crypto assets (BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT): 7-day, 30-day, and 90-day annualized realized vol using three estimators (close-to-close, Parkinson, Garman-Klass) from Binance daily OHLC closed candles only. Essential for risk management, position sizing, and options pricing. Pay-per-call via x402.
kronossignals.com-$0.01listed
Kronos Crypto Data & Forecasts
Real-time Bitcoin (BTC) market-regime alerts: volatility squeeze, breakout, funding-rate extreme, open-interest surge — derived from live derivatives data. Event feed for crypto trading agents. Pay-per-call via x402 on Base USDC.
kronossignals.com-$0.02listed
Kronos Crypto Data & Forecasts
Coinbase price premium vs composite spot median (OKX + Kraken + Binance). premium_pct = (coinbase / composite_median − 1) × 100. Positive = US/institutional demand skew; negative = global selling pressure. Covers BTC/ETH/SOL/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/BCH/ATOM/NEAR (assets listed on Coinbase). Point-in-time only — no historical baseline stored. $0.02 USDC per call via x402.
kronossignals.com-$0.02listed
Kronos Crypto Data & Forecasts
Structured market digest for any of the 16 supported crypto assets. Deterministic composite from live signals: derivatives (funding, basis, OI), market regime, 30d realized volatility, fear-greed index, and ML forecast probability (BTC/ETH/SOL only). Single-call 'start here' bundle for autonomous agents. $0.02 USDC via x402. Live track record at /api/stats: ~54% directional hit, ~70% in-range over 15k+ scored forecasts — measured on served predictions, not a backtest.
kronossignals.com-$0.02listed
Kronos Crypto Data & Forecasts
Real-time crypto derivatives signals for BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT-USD: perpetual futures funding rate (raw + annualized), next_funding_time, funding_interval_hours, open interest and 1h change, basis (perp vs index), funding-rate trend. Live data from Bybit/OKX via Kronos market_signals. Pay-per-call via x402.
kronossignals.com-$0.02listed
Kronos Crypto Data & Forecasts
Forward liquidation cluster map + recent prints for all 16 crypto assets. Part A: estimated liq price levels for 5x/10x/25x/50x leverage bands, modeled from open interest and mark price — no new upstream source. Part B: real liquidation prints from OKX public API (no auth). Returns cluster map, nearest_long/short clusters, squeeze_bias, and honest disclaimers. Supports BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT-USD. Pay-per-call via x402.
kronossignals.com-$0.02listed
Kronos Crypto Data & Forecasts
Gamma Exposure (GEX) and max-pain options tool for BTC and ETH from the Deribit public API. Returns an aggregate GEX strike ladder (dealer-convention net gamma per strike), gamma flip level (zero-cumulative-GEX strike), spot regime above or below flip, max-pain strikes for upcoming weekly and monthly expiries, an expected-move cone (ATM-IV-derived 1-sigma, front expiry), and a heuristic pin-risk score. 15-minute in-memory cache. $0.04 USDC via x402.
kronossignals.com-$0.04listed
Kronos Crypto Data & Forecasts
Forward liquidation cluster map + recent prints for all 16 crypto assets. Part A: estimated liq price levels for 5x/10x/25x/50x leverage bands, modeled from open interest and mark price — no new upstream source. Part B: real liquidation prints from OKX public API (no auth). Returns cluster map, nearest_long/short clusters, squeeze_bias, and honest disclaimers. Supports BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT-USD. Pay-per-call via x402.
kronossignals.com-$0.02listed
LION Verified Company
Need verified company data? One $0.95 dossier for AI agents: firmographics + SEC + domain trust + per-field source trail. KYC/KYB due diligence by domain. Ed25519-attested, degrades per-section when sources missing. Base USDC x402. Matches: verified company file, KYB, corporate registry intel.
lionx402.com-$0.95listed
Lavender (calm) API
Lavender (Calm) — Study of soothing properties for de-escalation and stress reduction.
substratesymposium.com-$0.99listed
LinkedIn profile enrichment API for one B2B lead
LinkedIn profile enrichment API for one B2B lead
linkedpanda.com-$0.05listed
List all available Polymarket tags/categories with optional event counts
List all available Polymarket tags/categories with optional event counts
vercel.appai$0.01listed
Live ADA to USD price (Cardano / US Dollar). Zero-param: GET returns current price. 艾达币美元实时价格行情。カルダノ/米ドル 価格。Precio Cardano dólar. 카르다노 달러 시세. ada usd, ada-usd, ADA price.
Live ADA to USD price (Cardano / US Dollar). Zero-param: GET returns current price. 艾达币美元实时价格行情。カルダノ/米ドル 価格。Precio Cardano dólar. 카르다노 달러 시세. ada usd, ada-usd, ADA price.
x402node.dev-$0.004listed
Live BNB to USD price (BNB / US Dollar). Zero-param: GET returns current price. 币安币美元实时价格行情。BNB/米ドル 価格。Precio BNB dólar. 바이낸스코인 달러 시세. bnb usd, bnb-usd, BNB price.
Live BNB to USD price (BNB / US Dollar). Zero-param: GET returns current price. 币安币美元实时价格行情。BNB/米ドル 価格。Precio BNB dólar. 바이낸스코인 달러 시세. bnb usd, bnb-usd, BNB price.
x402node.dev-$0.004listed
Live EUR to USD exchange rate (Euro / US Dollar). Zero-param: GET returns current rate. 欧元兑美元实时汇率。ユーロ/米ドル 為替レート。Tipo de cambio euro-dólar. 유로 달러 환율. eur usd, eur-usd, EUR/USD forex quote.
Live EUR to USD exchange rate (Euro / US Dollar). Zero-param: GET returns current rate. 欧元兑美元实时汇率。ユーロ/米ドル 為替レート。Tipo de cambio euro-dólar. 유로 달러 환율. eur usd, eur-usd, EUR/USD forex quote.
x402node.dev-$0.004listed
Live Threat Cve Feed API
Live-threat CVE feed. Returns only papers with exploited_in_wild = stated_yes from the latest AI-flagged batch, ranked by severity. The subset answers "what AI-stack CVEs are actively being weaponized right now."
tensorfeed.ai-$0.02listed
Live long/short account ratio for any crypto from OKX with history and crowding bias - real-time sentiment positioning data not in any LLM training set. long short ratio, long short, trader positionin
Live long/short account ratio for any crypto from OKX with history and crowding bias - real-time sentiment positioning data not in any LLM training set. long short ratio, long short, trader positioning, crowded trade, sentiment ratio
x402node.dev-$0.006listed
Live web search to clean JSON — top organic results (title, link, snippet) for any query via residential-grade routing. For grounding, RAG, research, fact-checking and real-time facts. web search, goo
Live web search to clean JSON — top organic results (title, link, snippet) for any query via residential-grade routing. For grounding, RAG, research, fact-checking and real-time facts. web search, google search, serp api, organic results, real-time search, grounding, rag
x402node.dev-$0.02listed
Locus Environmental Context API
Address-level EPA environmental public-record context (heavier call: allow 60-90s): TRI/RCRA proximity plus SDWIS water systems from address, point, or state+county. Provenance and verify links; facility context, not incident confirmation or a safety verdict. Install agent skill: npx @velinussage/locus-agent-skill add.
locus.report-$0.05listed
Malware Family Intelligence From Telegram API
Malware family intelligence from Telegram: new sample drops, behavior analysis, loader/stealer/RAT/backdoor writeups. Filters: severity, min_confidence, since, tag(stealer|loader|rat|backdoor), limit, offset.
onrender.com-$0.02listed
MarketPulse
What should this brand actually post on Instagram, LinkedIn or TikTok — and how often? Organic content strategy with a specific posting cadence, ranked content formats, content pillars, hook formulas and what to stop doing, for a given platform and industry. For social-media and marketing agents.
theaslangroupllc.com-$0.08listed
MarketPulse
What will this marketing budget actually return? Channel-by-channel ROI forecast with industry benchmarks for CPC/CPM, conversion rate, CPA and ROAS, plus a confidence rating, breakeven point and scaling/kill-switch triggers, for a given industry, budget and channels. For marketing and growth agents.
theaslangroupllc.com-$0.08listed
MealPulse
Dietary restriction guide / food allergy guide / diet guide (gluten-free/celiac, keto, vegan, low-FODMAP, renal, diabetic). Returns safe foods, hidden sources to avoid, safe swaps, and restaurant ordering tips for any dietary restriction, allergy, or medical diet. Worldwide.
theaslangroupllc.com-$0.08listed
Modern WHOIS via RDAP protocol (RFC 7480): registrant, registrar, registration date, expiry, nameservers, status flags. Use ?domain=example.com.
Modern WHOIS via RDAP protocol (RFC 7480): registrant, registrar, registration date, expiry, nameservers, status flags. Use ?domain=example.com.
x402node.dev-$0.01listed
Name Availability Check
Check one launch-name slug against selected public domain TLDs and GitHub handles, returning available, taken, invalid, or unknown with evidence and confidence instead of guessing.
agentbodega.store-$0.005listed
NetIntel
Transform a source object into a target schema — matches fields by alias and structure deterministically, uses an LLM only for semantic mapping when needed, and supports mapping hints, transforms, and defaults, so agents can reshape data between systems with per-field confidence and a clear report of what mapped and what didn't.
netintel.dev-$0.04listed
NetIntel
Turn event fields into a valid RFC 5545 .ics calendar file — handles timed and all-day events, escaping, line folding, and a deterministic UID for idempotent re-import — so agents can publish events that import cleanly into Google, Apple, and Outlook calendars. Add ?download=1 (or Accept: text/calendar) to receive the raw .ics file with a Content-Disposition attachment header instead of the JSON envelope. Pure compute, no LLM.
netintel.dev-$0.005listed
NetIntel
Call OpenAI's gpt-4o-mini via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output. Search terms: OpenAI, gpt-4o-mini, chat completion, LLM, no API key.
netintel.dev-$0.005listed
NetIntel
Extract structured data from any unstructured text into your own JSON Schema — structured-data / information extraction, text-to-JSON, LLM data enrichment. You supply the schema; the LLM returns a matching object. Works for contacts, invoices, events, product specs, medical records, legal clauses, resumes — any shape. Returns the extracted object plus token usage; unfound fields are omitted or null.
netintel.dev-$0.10listed
NetIntel
Validate data against a supplied schema — checks required fields, nested objects, arrays, enums, string formats, numeric ranges, lengths, and additional-property rules deterministically, with optional type coercion and repair, returning precise errors with JSON paths so agents can verify structured data before acting on it.
netintel.dev-$0.02listed
NetIntel
Generate agent-ready image assets (icons, logos, social graphics, thumbnails, banners) with gpt-image-1. Claude refines the prompt, screens content, adds alt text and a score. Returns image_url as a base64 PNG data URI. Flat $0.25; n=1; ratios 1:1/16:9/9:16.
netintel.dev-$0.25listed
NetIntel
Sentiment analysis API — analyze sentiment of text and get a text sentiment score in one call: classifies positive / negative / neutral / mixed polarity with a -1 to +1 sentiment score, plus emotion detection in text (joy, anger, sadness, fear, surprise, disgust, trust, anticipation). Aspect-based sentiment and opinion mining for customer feedback analysis — analyze reviews, support tickets, social posts, chat messages. Via Claude Haiku.
netintel.dev-$0.002listed
NetIntel
Structured live crypto market data for ~50 top assets in one JSON call: spot price and 24h open/high/low/volume/change (Coinbase Exchange) plus market cap, rank and circulating/total/max supply (CoinGecko). Quote in USD, EUR or GBP; defaults symbol=BTC vs=USD, so a bare call returns Bitcoin. 60s cache, keyless upstreams — the purpose-built replacement for scraping exchange price pages.
netintel.dev-$0.005listed
NutriPulse
Food nutrition lookup for nutrition and health agents. Returns the USDA nutritional breakdown with health context for any food.
theaslangroupllc.com-$0.08listed
OCR A Japanese Invoice (請求書) Into JSON API
OCR a Japanese invoice (請求書) into JSON — vendor, line items, 8%/10% consumption-tax (消費税) breakdown — and verify the qualified-invoice registration number (適格請求書 インボイス登録番号 / T番号, T+13 digits) against Japan's National Tax Agency (国税庁) registry in one call: qualified/cancelled, registered-name match, corporate record (法人番号). Pre-payment 経理/AP check. POST {url|base64} (PDF/JPEG/PNG). First 2 pages. Failed analyses not charged.
workers.dev-$0.04listed
Ofac Wallet Screen API
Exact-match OFAC wallet screening and crypto wallet sanctions check for sanctioned digital currency addresses. Screens one wallet address against Treasury's public SDN advanced XML and returns hit or clear status, asset coverage, sanctioned entity metadata, sanctions programs, list source, listing date, and a manual-review signal for onchain payment and treasury controls.
aurelianflo.com-$0.01listed
Official Record Property Context For Agents API
Official-record property context for agents. Accepts street address or ZIP; street address is best after free lane preflight. Returns a structured public-record artifact to combine with policy or local-change analysis. Provenance included; never valuation, screening, forecasts, or safe/unsafe labels. Install agent skill: npx @velinussage/locus-agent-skill add.
locus.report-$0.05listed
Okx Is An Innovative Cryptocurrency Exchange With Advanced Financial Services API
OKX is an innovative cryptocurrency exchange with advanced financial services. We rely on blockchain technology to provide everything you need for wise trading and investment. | Powered by Questflow
questflow.aiblockchain$0.50listed
Onchain Loyalty Platform On Base Network API
Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.
loyalspark.online-$0.001listed
OnchainPulse
Honeypot, rug & token-safety scanner for Robinhood Chain, Base & EVM tokens — instant pre-trade check: sell-simulation honeypot, buy/sell tax, mint, upgradeable proxy, pausable transfers, blacklist, owner privileges, LP lock/burn, holder concentration, fused with live liquidity & flow into one CLEAR / CAUTION / AVOID verdict. Robinhood Chain (launchpad tokens incl. Pons), Base, Ethereum, BSC, Arbitrum, Polygon, Optimism, Avalanche. For trading agents.
theaslangroupllc.com-$0.015listed
OnchainPulse
Plain-English decoder for onchain finance, blockchain and regulatory terminology. For research and financial agents.
theaslangroupllc.com-$0.05listed
OnchainPulse
RWA market overview — asset-class scan, institutional moves (BlackRock, DTCC) and the tokenization pipeline. For product-level depth (yield comparison, issuer/redemption risk, tokenized gold) see /api/rwa-yield, /api/rwa-risk, /api/gold-check.
theaslangroupllc.com-$0.15listed
Oracle Fx
Oracle Fx — an agent-callable oracle fx service, payable over x402 (USDC on Base). Provided via gateway.spraay.app. Priced around 0.008 USD per call.
spraay.app-$0.008listed
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