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Catalog

Every agent-payable API.

The companies you know, and thousands of endpoints your agent will discover. The catalog groups the network's 26,500+payable services under the companies that operate them — one company row can carry many service endpoints. Placement can't be bought.

All APIs

25,584 APIs
APICompanyCategoryPrice / callStatus
Oracle Sentiment Analysis API
Social + news sentiment read for a named crypto asset or topic, scored and sourced (not a raw keyword count). Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). Same sentiment methodology as research.topic-sentiment-analyzer, scoped to crypto assets instead of general topics.
craigmbrown.com-$0.06listed
Oracle Volatility Monitor API
Real-time volatility read for a trading pair with configurable alert thresholds you can act on. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). Complements oracle.alert-generator (fires the alert) and oracle.historical-analysis (explains the trend behind the number).
craigmbrown.com-$0.04listed
Orbit Decay API
Uses da/dt = -rho×sqrt(mu×a)/ballistic_coefficient for a circular orbit, holds density and ballistic coefficient constant, and linearly projects altitude over a bounded horizon. Real density changes rapidly with altitude and solar activity; the result is not a lifetime prediction or maneuver plan.
halowerk.com-$0.004listed
Orchestrated Bundle API
Orchestrated bundle: runs /linkcheck, /sitegrade, and /domain-intel (plus /email-verify if an email is supplied) and synthesizes one confidence-weighted trust verdict, explicitly flagging disagreement between sources -- e.g. a very new domain paired with an unusually mature TLS/header setup -- rather than just concatenating four outputs. Supply at least one of domain, url, or email.
tariffmonkee.com-$0.10listed
Orcpin
Single-trade T+1 settlement date, as a one-line GET: given a trade date and an as-of date, returns the settlement date and whether it has settled, on the versioned NYSE holiday calendar with SEC Rule 15c6-1 cited. The low-integration sibling of the batch settlement-dates route — no request body. A dates fact, never a violation determination. Nothing is stored.
orcpin.dev-$0.02listed
Order Book Depth & Slippage
Order book depth of one coin's perpetual on Bybit, Hyperliquid, dYdX, Gate, Kraken, Bitfinex, Deribit and OKX: best bid/ask, spread in bps, market depth in USD within 0.1/0.5/1/2% of mid, bid/ask imbalance, estimated slippage for your order size and the largest resting orders (walls). L2 orderbook liquidity for BTC, ETH, SOL and more. Data only. Bad input is free; under 2 venues not charged.
duoleads.com-$0.003listed
Order Flow Of A Crypto Or Tokenized Stock ($0.005) API
Order flow of a crypto or tokenized stock ($0.005): buy and sell volume from the taker side of on-chain swaps, buy pressure, momentum, volume versus its own baseline, anomaly flags and a signal for ETHUSD, BTCUSD, NVDA, TSLA and more, windows 1m, 5m or 15m. Use to see who is in control now.
marketintelligenceapi.com-$0.005listed
Order Flow Snapshot API
Order flow snapshot — CVD, OI, whale CVD, session levels, proximity to key levels, volume gear ratio. Live from rook-engine MMT WebSocket feed
ai-rook.com-$0.125listed
Order Report API
Order a researched report (company brief, Israeli regulation explainer, market scan, tech comparison). Written from public sources, delivered within 24h, general information only, not advice. Poll the returned status_url.
workers.dev-$0.01listed
Orderbook History API
5-minute spot order book depth snapshots on 29 venues, recorded since 2026-09-15 (five venues from the start, eleven from 2026-09-20, the rest from 2026-09-22), for BTC, ETH, SOL, XRP, DOGE, ADA, LINK, AVAX, LTC and BNB: the book binned into 0.1% buckets within 20% of mid as USD notional (bids and asks as JSON arrays), 2% depth per side, coverage, level count and in_aggregate; the free /api/public/orderbook returns the live aggregate and up to 24 hours of summed history.
bykaranteli.com-$0.10listed
Ordinal
Format a non-negative integer as an ordinal — both the suffixed form (21st) and the ordinal words (twenty-first).
openverbs.com-$0.002listed
Organic Bing results for a keyword — the second search engine, often different from Google
Organic Bing results for a keyword — the second search engine, often different from Google
connskill.com-$0.10listed
Organic search competitors
Find a domain's organic search competitors: rival domains ranking for the same Google keywords, each with the number of common keywords, average position, total ranked keywords and estimated organic traffic. For competitive SEO research. Empty results if none.
openverbs.com-$0.05listed
Organic search competitors of a domain, with keyword overlap metrics
Organic search competitors of a domain, with keyword overlap metrics
connskill.com-$0.08listed
Organic visibility overview of a domain: keyword counts by position bucket plus estimated traffic
Organic visibility overview of a domain: keyword counts by position bucket plus estimated traffic
connskill.com-$0.10listed
Organization Entity Audit API
Organization entity audit fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.
halowerk.com-$0.001listed
Organization Entity Decision API
Organization entity decision fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.
halowerk.com-$0.001listed
Organization Entity Repair API
Organization entity repair plan fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.
halowerk.com-$0.001listed
Origin Rules API
Checks supplied preference-origin criteria and reports the applied threshold. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. This is neither legal advice nor customs advice.
halowerk.com-$0.003listed
OrionCMD Checks
OrionCMD Checks: Prepaid domain threat watch: up to 25 domains for 30 days, webhook alerts. Pay once; each domain is re-checked about once a day for 30 days. You get an HMAC-signed JSON POST at your https webhook_url (event watch.changed) when a domain or its IPv4 appears in (or leaves) ThreatCluster's high-confidence IOC feed, when a new ransomware leak-site claim names it, when its A/NS/MX records change, or when registration expiry changes or falls within 30 days. A watch.created POST is sent
orioncmd.com-$0.30listed
OrionCMD Checks
OrionCMD Checks: Bulk IOC check: up to 100 domains or IPv4 (domains resolved, IPs matched too). Up to 100 comma- or newline-separated domains, URLs or IPv4 addresses in ?q=. Each domain is resolved (A) and the name, parent domains and resolved IPv4 are matched against ThreatCluster's high-confidence 30-day IOC feed (cached, refreshed hourly). No ransomware-claim lookups (use /v1/threat-check). Stale feed answers 503 before payment.
orioncmd.com-$0.50listed
OrionCMD Checks
OrionCMD Checks: Certificate status from CT logs + live HTTPS probe. Issuer, validity, days left, % of lifetime used, renewal cadence and a renewal-stall heuristic from Certificate Transparency logs (NOT the live served cert), plus a live HTTPS pass/fail probe from Cloudflare's edge.
workers.dev-$0.01listed
OrionCMD Checks
OrionCMD Checks: Domain threat check: IOC feed match (name + resolved IPs) and ransomware leak-site claims. Resolves the hostname (A/AAAA via Cloudflare DoH), matches the hostname, its parent domains and resolved IPv4 addresses against ThreatCluster's high-confidence 30-day IOC feed (cached, refreshed hourly), and looks up ransomware leak-site claims naming the domain from commercially reusable sources (via Dragons Eye). Returns one verdict: listed, claimed, listed_and_claimed or no_known_threat
orioncmd.com-$0.02listed
OrionCMD Checks
OrionCMD Checks: Domain security grade A-F with a per-category breakdown. Runs the cert, DNS, expiry, email-auth and security-header checks and scores them: TLS 25, email auth 25, HTTP headers 20, DNS (resolves, DNSSEC, CAA) 15, registration expiry 15. Returns one A-F letter, a 0-100 score, each category's points and notes, and the top fixes. Unlike /v1/site-health (raw cert/DNS/expiry data, no grade), this is a graded scorecard that also covers email auth and headers.
orioncmd.com-$0.03listed
OrionCMD Checks
OrionCMD Checks: HTTP security headers + redirect chain for a site. One HTTPS GET from Cloudflare's edge: redirect chain, final status, HSTS, CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy, COOP, a simple A-F grade and plain-English findings.
orioncmd.com-$0.01listed
OrionCMD Checks
OrionCMD Checks: Email authentication posture: SPF, DMARC, DKIM, MTA-STS, TLS-RPT, BIMI. SPF validity and DNS-lookup count (limit 10), DMARC policy/pct/rua, DKIM on common selectors, MTA-STS mode, TLS-RPT and BIMI, with a rough 0-100 score and plain-English findings. Live DNS via Cloudflare DoH.
orioncmd.com-$0.01listed
OrionCMD Checks
OrionCMD Checks: Live DNS / email-auth / CAA / DNSSEC check. NS, A/AAAA/CNAME, MX, SPF, DMARC, CAA (tree-climbing) and DNSSEC via Cloudflare DoH, with plain-English findings and fixes[] (paste-ready SPF merge, DMARC and CAA records with dig verify commands).
orioncmd.com-$0.01listed
OrionCMD Checks
OrionCMD Checks: Certificate status from CT logs + live HTTPS probe. Issuer, validity, days left, % of lifetime used, renewal cadence and a renewal-stall heuristic from Certificate Transparency logs (NOT the live served cert), plus a live HTTPS pass/fail probe from Cloudflare's edge.
orioncmd.com-$0.01listed
Orizn Visa API
Visa and entry requirements for a passport/destination pair: requirement type, visa-free days, documents, fees, processing time, transit rules, passport validity, overstay penalties and embassy contacts. Answers travel compliance and passport restriction checks, in 15 languages, with the official source and verification date where that pair has been verified.
orizn.app-$0.03listed
Orlando STR License Check
Does this Orlando address hold a short-term rental license? Query any street address in Orlando, Florida and get license number, status, issued/expire dates, and holder name. For host compliance and agent workflows. Input: address string. Output: JSON, live City of Orlando open data.
onrender.com-$0.01listed
Ota Sign API
Canonicalizes firmware hash, version, device model and minimum bootloader version, then produces a SHA-256 manifest digest and HMAC-SHA256 release tag using caller-supplied ephemeral key material. This is a symmetric integrity tag, not a vendor PKI signature or code-signing service.
halowerk.com-$0.003listed
Otto AI
Base chain status from Otto's configured RPC: latest, safe, finalized and pending heads with validated mined block hashes; pending hash nullable and provisional. Public source ID, per-head observation times and retrieval window disclose non-atomic RPC reads. Base fee, congestion, finality lag and block age at observation, separate from cache staleness. Refreshed every minute. $0.001 per call.
ottoai.services-$0.001listed
Otto AI
Otto X402 Router — Meta Intelligence. Ask what data/service you need; get the best Otto-verified plus live CDP Bazaar x402 candidates with prices, pay_urls and blunt source labels. Non-custodial discovery.
ottoai.services-$0.001listed
Otto AI
Daily technical snapshot for a vendor-resolved equity from licensed Tiingo adjusted closes: Wilder RSI-14, 20-session momentum, SMA-20/SMA-50, price distance from each average, above/below/mixed trend state, and the latest observed golden/death cross. Price and averages retain Tiingo payload units because the captured feed does not identify a currency.
ottoai.services-$0.003listed
Otto AI
Latest insider trades feed across ALL US-listed companies — the 20 most recent SEC Form 4 filings by acceptance time, not one ticker at a time: issuer ticker and name, filer and role, transaction code (P purchase / S sale / A award / M exercise / F tax), shares, price, value and shares held after, with EDGAR links. Refreshed every 15 minutes. Filings with no Table I rows are excluded and counted. Public-domain SEC EDGAR. $0.003 per call.
ottoai.services-$0.003listed
Otto AI
Earnings calendar and surprise history for a vendor-resolved equity: next report date/session with EPS and revenue estimates, latest reported EPS versus estimate, surprise percentage, and four-quarter history. Monetary estimates retain Finnhub payload units because the captured feed does not identify a currency. Event-window price drift is explicitly unavailable rather than inferred.
ottoai.services-$0.003listed
Otto AI
Full SEC financial statements for any US-listed company by ticker: income statement, balance sheet and cash flow, five periods deep, annual and quarterly. Every figure names its XBRL concept, its filing and date, and whether it was filed, derived from year-to-date figures or computed; restatements flagged with the earlier value; unreported cells explicit. Plus the filing index (10-K/10-Q/8-K, item codes). SEC EDGAR, public domain.
ottoai.services-$0.003listed
Otto AI
8-K filings by ticker — the item-coded SEC material-event feed: every 8-K a US-listed company filed in 90 days, tagged with the SEC's own item codes and official titles (1.01 material agreement, 1.05 cybersecurity incident, 3.01 delisting notice, 5.02 officer change, 8.01 other). Returns event and filing dates separately, amendments labelled, EDGAR links. Earnings-only filings excluded and counted. Public-domain SEC EDGAR. $0.003 per call.
ottoai.services-$0.003listed
Otto AI
Find the DEX pools a tokenized US stock is a member of, on Robinhood Chain, Base, BNB Chain or Solana. Returns pool id (v4 ids kept distinct from v3 addresses), DEX, the side the stock is on, the counterpart with an evidence-backed class, reported USD liquidity, 24h volume and pool age. Membership discovery only: a provider-covered read, not a census; no APR, no execution; a return is the stock's only where it is the base token. $0.001 per call.
ottoai.services-$0.001listed
Otto AI
Daily US macro-regime snapshot from licensed Alpha Vantage series: 10-year Treasury yield, effective federal funds rate, three-month rate changes, CPI index and YoY inflation, plus a mechanical rates-direction/inflation-direction label with disclosed thresholds. Three upstream calls per daily refresh; scanner context only.
ottoai.services-$0.003listed
Otto AI
Dividend intelligence for a vendor-resolved equity: TTM yield, payout ratio and dividend/share, next known ex-date, latest raw and adjusted dividend values, adjusted complete-year growth, recent payments, and a yield-trap checklist with explicit coverage. Monetary fields retain FMP payload units because the captured feeds do not identify a currency.
ottoai.services-$0.003listed
Otto AI
Day movers for tokenized US stocks on TWO rails in one call: Robinhood Chain (chainId 4663, ~95 names) and Base B20 (13 Coinbase-issued tokens, keyed by token address). Gainers and losers by REAL day-over-day change of the UNDERLYING stock vs the prior NYSE session close (Finnhub quotes), with per-rail coverage counts and named exclusions. Off-hours values freeze; a tokenized share can trade at a premium/discount. Refreshed every 15 minutes.
ottoai.services-$0.003listed
Otto AI
Extract all links (hrefs) from any web page as structured JSON — every internal, external and anchor link, deduplicated, returned with a total count. Renders the page in a real headless browser, so it captures links injected after JavaScript runs that fetch-only scrapers miss. For crawling, sitemap building, link audits and site-structure mapping. Keyless, pay-per-call.
ottoai.services-$0.003listed
Otto AI
Latest company news for a vendor-resolved equity: licensed Finnhub headlines from the trailing seven days with publication time, source, and summary. Only articles that name the company are served — labelled `primary` when the headline names it, `mentioned` when only the summary does — so a symbol-tagged story about another company never fills the list. Redirect URLs withheld; no sentiment is fabricated.
ottoai.services-$0.003listed
Otto AI
Base gas oracle from Otto's own RPC: current base fee (wei+gwei), legacy gas price, and slow/standard/fast EIP-1559 priority-fee tiers (p25/p50/p90 over the last 20 blocks) with a ready-to-sign maxFeePerGas per tier. Unlike the crowded gas shelf it PUBLISHES the formula, so every tier is reproducible from the response. Flat JSON, refreshed every minute. Base gas oracle, gas price, priority fee, EIP-1559, maxFeePerGas. $0.001 per call.
ottoai.services-$0.001listed
Otto AI
Otto X402 Router — Feedback & Refunds. Rate a paid Router call by its payment tx_hash. An approved refund returns this $0.001 fee PLUS the refundable amount, only to the original payer, never above what you paid Otto.
ottoai.services-$0.001listed
Otto AI
Analyst-rating snapshot for a vendor-resolved equity: consensus distribution, high/low/median/consensus price targets, target versus a timestamped reference price, recent firm-level grade actions, and transparent 90-day upgrade-minus-downgrade momentum. Price fields retain FMP payload units because the captured feeds do not identify a currency.
ottoai.services-$0.003listed
Otto AI
One call returns the full domain profile for vetting, deliverability, or phishing/fraud checks: live DNS (A/MX/NS + record counts), RDAP/WHOIS registration (registrar, domain age, expiry, status, DNSSEC) and email authentication (SPF, DMARC policy, detected DKIM selectors) — plus a one-line summary. Bundles three lookups into one hourly-fresh read. Keyless, license-clean, pay-per-call.
ottoai.services-$0.02listed
Otto AI
AI video generation via fal.ai — default model: ByteDance Seedance 2.0. Alternatives: fal-ai/sora-2/text-to-video, fal-ai/veo3.1. Dynamic pricing per request: at-cost fal.ai rate + 15% margin (floor $0.05); the advertised price is the Seedance 5s reference quote — the actual quote is returned per request. Supports text-to-video and image-to-video.
ottoai.services-$1.75listed
Otto AI
Schedule 13D and 13G activist stake filings by ticker: every beneficial-ownership filing made about a US-listed issuer in the last 365 days, each validated against its own cover page so a company's outbound filings about OTHER companies are excluded. Returns 13D vs 13G counts, amendments, reporting-person names and EDGAR links. 13D is the schedule filed without a passive/qualified certification. Public-domain SEC EDGAR. $0.005 per call.
ottoai.services-$0.005listed
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