--- $id: https://apis.ax/directory $type: Directory $context: https://schema.org app: "apis.ax" --- # apis.ax The agent-first API catalog — every high-quality API an agent needs mid-task, agent-legible by construction, worst-case cost on the wire before the first call. **42** of **42** listings. ## Facets _Derived from the Listing type — no facet was hand-authored._ ### Category (enum) - reference-data (8) — `/directory?category=reference-data` - enrichment (4) — `/directory?category=enrichment` - web-access (3) — `/directory?category=web-access` - intelligence (6) — `/directory?category=intelligence` - compute (2) — `/directory?category=compute` - geo (3) — `/directory?category=geo` - finance (2) — `/directory?category=finance` - commerce (2) — `/directory?category=commerce` - business (3) — `/directory?category=business` - compliance (4) — `/directory?category=compliance` - logistics (3) — `/directory?category=logistics` - platform (2) — `/directory?category=platform` ## Listings ### AXP conformance audit - id: `agent-legibility-gate` - category: platform - sources: OpenAPI 3.1, llms.txt, AXP - pricing: keyless — the audit is free to run - detail: https://apis.ax/listings/agent-legibility-gate Run the seven-clause AXP check against any API surface — OpenAPI 3.1 contract, llms.txt, markdown-first responses, typed errors, honest freshness labels, hard-ceiling pricing — and get a verdict anyone can re-run. ### auto.dev automotive - id: `auto-dev-automotive` - category: reference-data - sources: NHTSA vPIC, live used-car inventory, ACES/PIES - pricing: per VIN decode · per listings query · per valuation · per fitment lookup - detail: https://apis.ax/listings/auto-dev-automotive VIN decode (NHTSA vPIC normalized, with trim and options), 1M+ live used-car listings, recalls, market valuation, and ACES/PIES parts-fitment — one surface to decode, price, and fit a vehicle. ### Browser automation / computer-use - id: `browser-automation-computer-use` - category: compute - sources: Browserbase+Stagehand, Steel, Skyvern - pricing: per session - detail: https://apis.ax/listings/browser-automation-computer-use Drive a real browser session when a target has no API — navigate, click, extract — metered by the session, not the minute of your attention. ### builder.domains domain / whois / brand-suggest - id: `builder-domains-whois` - category: platform - sources: Netim, Porkbun, Dynadot, RDAP - pricing: per availability or suggest query · claim priced at registration - detail: https://apis.ax/listings/builder-domains-whois Domain availability with AI brand and subdomain suggestions, whois and DNS lookup, and identity-gated claim — wired to real registrar rails (Netim / Porkbun / Dynadot). ### Calendar / scheduling - id: `calendar-scheduling` - category: business - sources: Cal.com, Nylas, Google Calendar - pricing: per call · per seat - detail: https://apis.ax/listings/calendar-scheduling Reconcile availability and commit a time across calendar providers — one unified shelf instead of per-provider OAuth handshakes. ### Code sandbox / exec - id: `code-sandbox-exec` - category: compute - sources: E2B, Modal, Daytona - pricing: per second, against a declared ceiling - detail: https://apis.ax/listings/code-sandbox-exec Run generated code in an isolated sandbox, as many times as a build loop needs — per-second compute charged against a ceiling you declare up front. ### Content moderation / PII redaction / trust & safety - id: `content-moderation-pii` - category: compliance - sources: toxicity classifiers, PII scrubbing, CSAM hash-match - pricing: per call · per 1K tokens - detail: https://apis.ax/listings/content-moderation-pii Toxicity classification, PII redaction, and CSAM hash-matching — the guardrail shelf for any agent acting on user-generated content or handling personal data. ### Email deliverability / domain reputation - id: `email-deliverability-reputation` - category: enrichment - sources: DMARC/SPF/DKIM, blocklist, inbox-placement - pricing: per domain check - detail: https://apis.ax/listings/email-deliverability-reputation Check DMARC/SPF/DKIM alignment, blocklist presence, and inbox placement BEFORE a send — so outreach never leaves from a burned domain. ### Email / SMS / notify - id: `email-sms-notify` - category: business - sources: Resend, Twilio, Slack, Postmark - pricing: per send - detail: https://apis.ax/listings/email-sms-notify Send the finish-line message — outreach email, a confirmation text, a report posted to Slack — through one metered send call. ### Embeddings / vector / rerank - id: `embeddings-vector-rerank` - category: intelligence - sources: Cohere, Voyage, rerank-3 - pricing: per 1K tokens · per rerank - detail: https://apis.ax/listings/embeddings-vector-rerank Embeddings and reranking for retrieval pipelines — rerank is the slice where model choice visibly moves result quality, so it is the slice this shelf curates hardest. ### Data enrichment — multi-vendor waterfall - id: `enrichment-external-waterfall` - category: enrichment - sources: Apollo, Hunter, PDL, Prospeo, FullEnrich - pricing: per verified record across the cascade - detail: https://apis.ax/listings/enrichment-external-waterfall Apollo, Hunter, PDL, Prospeo, and FullEnrich orchestrated under one contract: the waterfall keeps trying vendors until a record verifies, and you pay only when one does. ### Data enrichment — company / person / email - id: `enrichment-waterfall-house-core` - category: enrichment - sources: enrichment.headless.ly, wikidata - pricing: per verified record · unverified results are never charged - detail: https://apis.ax/listings/enrichment-waterfall-house-core Domain or name → firmographics → decision-maker → verified email, in one waterfall call — you are charged only when the record verifies as deliverable, never for a miss. ### epcis.dev capture + EPCIS translate - id: `epcis-dev-capture-translate` - category: logistics - sources: EPCIS 2.0, Cloudflare Pipelines, R2 Iceberg - pricing: per translated document · per trace read · capture free - detail: https://apis.ax/listings/epcis-dev-capture-translate EPCIS 1.1/1.2/2.0 XML → 2.0 JSON-LD translation, event capture, and trace-by-EPC reads — a standards-native supply-chain event spine with capture free of charge. ### Financial / market data - id: `financial-market-data` - category: finance - sources: Polygon, FMP, Finnhub, CoinGecko - pricing: per symbol · per endpoint - detail: https://apis.ax/listings/financial-market-data Equities, fundamentals, and crypto from fragmented vendors, normalized onto one shelf — every endpoint labeled with its real freshness (real-time vs 15-minute) and latency. ### FX / currency conversion - id: `fx-currency-conversion` - category: finance - sources: live + historical FX rate feeds - pricing: per conversion · per rate - detail: https://apis.ax/listings/fx-currency-conversion Live and historical FX rates for cross-border pricing and settlement — quote in one currency, settle in another, with the rate on the wire. ### Government / legal / regulatory primary sources - id: `government-legal-sources` - category: reference-data - sources: SEC EDGAR, USPTO, PACER, Regulations.gov - pricing: per query · per document - detail: https://apis.ax/listings/government-legal-sources SEC EDGAR filings, USPTO records, PACER dockets, and Regulations.gov — the public filing corpus behind clean, queryable endpoints for legal, finance, and diligence work. ### GTIN attributes + auto fitment (ACES/PIES) - id: `gtin-fitment-expansion` - category: reference-data - sources: GS1 GPC, ACES/PIES, id.org.ai, auto.dev - pricing: per attribute set · per fitment - detail: https://apis.ax/listings/gtin-fitment-expansion Full product-attribute resolution — brand, GPC brick, net content, images — and year/make/model → fitting SKUs: the deep end of product identity and automotive fitment. ### headless.ly business verbs (CRM / billing / scheduling) - id: `headless-ly-business-verbs` - category: business - sources: headless.ly business-OS, 52 typed event-driven systems - pricing: per verb call - detail: https://apis.ax/listings/headless-ly-business-verbs CRM contacts and deals, billing and invoicing, scheduling — 52 typed event-driven systems exposed as verb calls built for agents, not dashboards. ### id.org.ai GTIN / GS1 Digital Link resolver - id: `id-org-ai-gtin` - category: reference-data - sources: GS1 Digital Link, in-house resolver, wikidata - pricing: per resolve · premium for serialized + attribute expansion - detail: https://apis.ax/listings/id-org-ai-gtin GTIN/UPC/EAN → a conformant GS1 Digital Link linkset plus normalized product attributes, cross-linked to a canonical wikidata QID — identity-complete product resolution from a bare barcode. ### Image / media generation - id: `image-media-generation` - category: intelligence - sources: Replicate, Fal, Flux, ElevenLabs - pricing: per generation · per second - detail: https://apis.ax/listings/image-media-generation Produce images, audio, and video mid-task — the model marketplaces behind one agent-native metered contract. ### IP intelligence / geolocation / fraud + bot detection - id: `ip-intelligence-geolocation` - category: compliance - sources: MaxMind, IPinfo, proxy/VPN detection - pricing: per IP lookup - detail: https://apis.ax/listings/ip-intelligence-geolocation IP → geolocation, proxy and VPN detection, and fraud risk — the trust layer for abuse prevention and personalization. ### Machine translation / language - id: `machine-translation-language` - category: intelligence - sources: DeepL, Google Translate v3 - pricing: per character - detail: https://apis.ax/listings/machine-translation-language Translate content, outreach, or a freshly scraped page — high-frequency language coverage, metered cleanly per character. ### Maps & routing (premium) - id: `maps-premium-proxy` - category: geo - sources: Google Places, Distance Matrix - pricing: per call - detail: https://apis.ax/listings/maps-premium-proxy Places details and distance-matrix routing for booking, travel, and logistics — metered per call, complementing the places.org.ai geocoder. ### News & real-time event feeds - id: `news-event-feeds` - category: reference-data - sources: NewsAPI, GDELT, RSS-at-scale - pricing: per query · subscription for standing feeds - detail: https://apis.ax/listings/news-event-feeds Standing monitored news and event feeds — subscribe to a topic instead of re-querying it — for alerting, monitoring, and research that has to notice change, not just search for it. ### Payments & checkout - id: `payments-x402-rail` - category: commerce - sources: Stripe agent wallet - pricing: per settled charge - detail: https://apis.ax/listings/payments-x402-rail Agent-native checkout on live payment rails, so a metered call can settle inside a spending ceiling a human declared once. ### PDF / OCR / document parse - id: `pdf-ocr-document-parse` - category: intelligence - sources: LlamaParse, Reducto, Mistral OCR, Mathpix - pricing: per page · per document - detail: https://apis.ax/listings/pdf-ocr-document-parse Invoices, contracts, 10-Ks, scanned forms — parsed to structured JSON or markdown, with table extraction accurate enough to act on the numbers. ### Phone & address validation (canonical /validate) - id: `phone-address-validate` - category: enrichment - sources: live-telco lookup, places.org.ai address data - pricing: per validation - detail: https://apis.ax/listings/phone-address-validate One canonical /validate/phone and /validate/address with published accuracy benchmarks — live-telco phone checks, address checks on the places.org.ai geographic base. ### places.org.ai geocode + jurisdiction resolve - id: `places-org-ai-geocode` - category: geo - sources: GeoNames, Overture, Natural Earth - pricing: per geocode · per jurisdiction resolve - detail: https://apis.ax/listings/places-org-ai-geocode Geocode and reverse-geocode, plus point-in-polygon jurisdiction resolution — lat,lon → county, utility territory, school district, zoning, FEMA flood zone — on GeoNames + Overture + Natural Earth. ### Read-URL / scrape - id: `read-url-scrape-curated` - category: web-access - sources: Firecrawl, Jina Reader - pricing: per page - detail: https://apis.ax/listings/read-url-scrape-curated A link in, clean LLM-ready markdown out — markdown-native by construction, with a typed EMPTY/BLOCKED contract instead of wrong-but-parseable HTML. ### Sanctions / AML / KYC + identity-doc verification - id: `sanctions-aml-kyc` - category: compliance - sources: OFAC/EU/UN screening, Persona, Onfido, Sardine - pricing: per screen · per verification - detail: https://apis.ax/listings/sanctions-aml-kyc Screen a person or entity against OFAC, EU, and UN lists and verify identity documents — the compliance check that naturally follows entity resolution. ### schema.org.ai taxonomy knowledge graph - id: `schema-org-ai-taxonomy` - category: reference-data - sources: NAICS/SIC/ISIC/UNSPSC, O*NET, Schema.org - pricing: per lookup - detail: https://apis.ax/listings/schema-org-ai-taxonomy NAICS/SIC/ISIC/UNSPSC crosswalk, O*NET's 1,459 occupations and 17,588 tasks, a 52-system SaaS crosswalk, and 871-type Schema.org resolution — canonical classification lookups on the same entity IDs the rest of the catalog resolves against. ### Read-URL — anti-bot escalation - id: `scrape-anti-bot-escalation` - category: web-access - sources: Bright Data, Oxylabs, Browserless - pricing: per page, premium tier - detail: https://apis.ax/listings/scrape-anti-bot-escalation When a page will not yield, escalate: residential routing and full browser rendering pick up exactly where plain scraping stops, on the same read-URL contract. ### Shipping / logistics rates + carrier tracking - id: `shipping-logistics-tracking` - category: logistics - sources: EasyPost, Shippo, Aftership - pricing: per rate-shop · per tracking event - detail: https://apis.ax/listings/shipping-logistics-tracking Rate-shop carriers and track parcels — EasyPost, Shippo, and Aftership behind one metered contract, carrier-facing where EPCIS is event-facing. ### Social-graph data (IG / TikTok / LinkedIn / X / YouTube) - id: `social-graph-unofficial` - category: reference-data - sources: IG, TikTok, LinkedIn, X, YouTube - pricing: per successful record · empty or blocked auto-refunds - detail: https://apis.ax/listings/social-graph-unofficial Profiles, posts, and follower graphs behind ONE schema-stable contract — with automatic refunds on empty or blocked results and live uptime and freshness readings per endpoint. ### Speech-to-text / transcription - id: `speech-to-text-transcription` - category: intelligence - sources: Deepgram, AssemblyAI, Whisper API - pricing: per audio minute - detail: https://apis.ax/listings/speech-to-text-transcription Bring audio in — meetings, calls, voice notes — transcribed per audio minute, so voice and meeting-summary work can start at step one. ### Supply-chain visibility reads - id: `supply-chain-visibility-reads` - category: logistics - sources: visibility.cloud, epcis.dev - pricing: per trace · per evidence read - detail: https://apis.ax/listings/supply-chain-visibility-reads Chain-of-custody evidence and partner-sharing-grant reads over captured EPCIS events — global-trade answers on the epcis.dev spine. ### Tax & compliance calculation - id: `tax-compliance-calculation` - category: compliance - sources: Avalara, TaxJar, EU-VIES, places.org.ai - pricing: per rate lookup · per validation - detail: https://apis.ax/listings/tax-compliance-calculation Tax rates and registration validation by jurisdiction — the exact rate for a point on the map, riding the places.org.ai jurisdiction resolver. ### Travel & booking inventory - id: `travel-booking-inventory` - category: commerce - sources: Amadeus, Duffel (flights, hotel, car inventory) - pricing: per search · per booking - detail: https://apis.ax/listings/travel-booking-inventory Flight, hotel, and car inventory — search availability and complete a booking through Amadeus and Duffel — so a trip gets ticketed, not just planned. ### Vision / image + chart understanding - id: `vision-image-chart` - category: intelligence - sources: Cloud Vision, Landing AI, Pixtral - pricing: per image - detail: https://apis.ax/listings/vision-image-chart Read screenshots, charts, and rendered UIs — the specialized slices (detection, chart-reading) beyond the generic captioning a base model already does. ### Weather - id: `weather-forecast` - category: geo - sources: Open-Meteo, Tomorrow.io - pricing: per forecast - detail: https://apis.ax/listings/weather-forecast Forecast and historical weather — Open-Meteo for volume, Tomorrow.io for premium accuracy — the reading every travel and logistics flow checks before it commits. ### Web search - id: `web-search-curated` - category: web-access - sources: Exa, Tavily, Serper - pricing: per query - detail: https://apis.ax/listings/web-search-curated Fresh web results for the call agents make first and most — with honest typed BLOCKED/EMPTY statuses on every response, never a fake success. ### wikidata / wikipedia entity resolution - id: `wikidata-entity-resolution` - category: reference-data - sources: wikidata mirror, GLEIF, company registries - pricing: per resolve - detail: https://apis.ax/listings/wikidata-entity-resolution Name → canonical wikidata QID with GLEIF, registry, and ISIN links; fuzzy company / person / product reconciliation; a registry-identifier crosswalk — served from a dedicated mirror, free of public-endpoint rate limits. --- > Agent register. Submit a listing: `POST https://apis.ax/listings` with a JSON Listing body. The same state renders as HTML at `https://apis.ax/directory?format=html`.