# apio
> Structured, cited, agent-readable comparisons of commercial APIs by capability, pricing, trust, and developer experience.

Each API profile has a JSON endpoint at /api/data/apis/{slug}.

## Categories
- [Communications & Messaging](/categories/communications)
  - [Email APIs](/categories/email) (11)
  - [Email Verification APIs](/categories/email-verification)
  - [SMS APIs](/categories/sms)
  - [WhatsApp & Chat APIs](/categories/whatsapp)
  - [Voice & Telephony APIs](/categories/voice)
  - [Push Notification APIs](/categories/push)
- [Payments](/categories/payments)
  - [Online Card Payment APIs](/categories/card-acquiring) (1)
  - [Card Issuing APIs](/categories/card-issuing)
  - [Bank Payment & Open Banking APIs](/categories/bank-payments)
  - [Payouts & Disbursement APIs](/categories/payouts) (1)
  - [Subscription & Billing APIs](/categories/billing) (1)
  - [Payment Fraud & Risk APIs](/categories/fraud) (1)
  - [Sales Tax APIs](/categories/tax)
- [Identity & Compliance](/categories/identity)
  - [KYC & Identity Verification APIs](/categories/kyc) (2)
  - [KYB & Business Verification APIs](/categories/kyb)
  - [AML & Sanctions Screening APIs](/categories/aml) (1)
- [Documents](/categories/documents)
  - [OCR & Document Parsing APIs](/categories/ocr)
  - [PDF & Document Generation APIs](/categories/pdf)
  - [E-Signature APIs](/categories/esignature)
- [Data & Web](/categories/web-data)
  - [Web Search APIs](/categories/web-search)
  - [Scraping & Crawling APIs](/categories/scraping) (7)
  - [Data Enrichment APIs](/categories/enrichment)
  - [SEO & Keyword Data APIs](/categories/seo-keywords) (9)
  - [SERP APIs](/categories/serp) (7)
  - [Backlink Data APIs](/categories/backlinks) (6)
  - [Site Audit & Technical SEO APIs](/categories/site-audit) (6)
  - [Rank Tracking APIs](/categories/rank-tracking) (4)
  - [Reviews Data APIs](/categories/reviews) (1)
  - [Product & E-commerce Data APIs](/categories/product-data) (1)
  - [App Store Data APIs](/categories/app-store-data) (1)
  - [AI Search Visibility APIs](/categories/ai-search-visibility) (1)
- [Location & Address](/categories/location)
  - [Geocoding APIs](/categories/geocoding) (1)
  - [Maps & Routing APIs](/categories/maps-routing)
  - [Address Validation APIs](/categories/address-validation) (1)
- [Media & AI](/categories/media-ai)
  - [Speech-to-Text & Transcription APIs](/categories/speech-to-text) (1)
  - [Text-to-Speech APIs](/categories/text-to-speech)
  - [Video & Audio AI APIs](/categories/video-audio-ai) (1)
- [Storage & Media](/categories/storage)
  - [Object Storage APIs](/categories/object-storage)
  - [Media Processing & Delivery APIs](/categories/media-processing)

## API profiles
- [Ahrefs API](/apis/ahrefs): With Ahrefs API, you can use data from your Ahrefs workspace to create custom integrations and automations. — JSON: /api/data/apis/ahrefs
- [Amazon Simple Email Service](/apis/amazon-ses): Amazon Simple Email Service (Amazon SES) is a cloud-based email service provider that can integrate into any application for high-volume email automation. — JSON: /api/data/apis/amazon-ses
- [Brevo](/apis/brevo): Brevo is the most intuitive all-in-one customer engagement platform: email and SMS marketing, automation, CRM, live chat, and transactional email. — JSON: /api/data/apis/brevo
- [Bright Data Web Unlocker](/apis/brightdata-web-unlocker): Automate your CAPTCHA solving while scraping websites. Our advanced technology rotates IPs, tackles user agents, and solves CAPTCHAs with ease. — JSON: /api/data/apis/brightdata-web-unlocker
- [Cloudflare Email Service](/apis/cloudflare-email-service): Send transactional emails and route incoming emails to Workers or email addresses with Cloudflare Email Service. — JSON: /api/data/apis/cloudflare-email-service
- [DataForSEO](/apis/dataforseo): We provide comprehensive SEO and digital marketing data solutions via API — JSON: /api/data/apis/dataforseo
- [Deepgram](/apis/deepgram): Build with the most accurate and cost-effective real-time APIs for speech-to-text, text-to-speech, and voice agents. Available in real-time and batch, cloud and self-hosted. — JSON: /api/data/apis/deepgram
- [Diffbot](/apis/diffbot): Web Data for your AI — JSON: /api/data/apis/diffbot
- [Firecrawl](/apis/firecrawl): The API to search, scrape, and interact with the web at scale. — JSON: /api/data/apis/firecrawl
- [Google Ads API](/apis/google-keyword-planner): Keyword Planning is a process for getting keyword metrics and forecasts as well as searching for new keywords to add to campaigns. — JSON: /api/data/apis/google-keyword-planner
- [Jumio](/apis/jumio): Accelerate customer onboarding, combat fraud, and ensure compliance with Jumio's industry-leading identity verification platform. — JSON: /api/data/apis/jumio
- [Keywords Everywhere](/apis/keywords-everywhere): Pull search volume, CPC, competition, related keywords, traffic and backlink data into your own app, over one REST API, using the same API key you already use in the extension. — JSON: /api/data/apis/keywords-everywhere
- [Mailchimp Transactional](/apis/mandrill): Send targeted and event-driven messages to anyone, fast—with best-in-class deliverability. — JSON: /api/data/apis/mandrill
- [MailerSend](/apis/mailersend): MailerSend is a powerful transactional email system built for developers but designed so non-tech teams can contribute without coding. — JSON: /api/data/apis/mailersend
- [Mailgun](/apis/mailgun): Mailgun is the all-in-one, intelligent email delivery platform trusted by businesses and loved by developers. — JSON: /api/data/apis/mailgun
- [Mailjet](/apis/mailjet): The best email marketing software that's built for devs and loved by marketers. — JSON: /api/data/apis/mailjet
- [Melissa](/apis/melissa): Global data quality and enhancement solutions to profile, verify, clean, update, match, and integrate People data. — JSON: /api/data/apis/melissa
- [Moz API](/apis/moz): Moz API gives you the power to quickly create custom SEO tools, dashboards, and integrations — affordably and at scale. — JSON: /api/data/apis/moz
- [Oxylabs](/apis/oxylabs): The best proxy service platform with 175M+ Residential and 2M Datacenter IP proxies. Extract public data from any website with ease! — JSON: /api/data/apis/oxylabs
- [Postmark](/apis/postmark): Fast, Reliable Email Delivery Service — JSON: /api/data/apis/postmark
- [Resend](/apis/resend): The best way to reach humans instead of spam folders. Deliver transactional and marketing emails at scale. — JSON: /api/data/apis/resend
- [SE Ranking](/apis/se-ranking): Automate SEO & GEO workflows with SE Ranking's SEO API — JSON: /api/data/apis/se-ranking
- [SERP API](/apis/brightdata-serp): A comprehensive solution for easy, real-time search engine scraping, handling proxy management, unblocking, and parsing with ease. — JSON: /api/data/apis/brightdata-serp
- [ScraperAPI](/apis/scraperapi): Collect data from any public website with our web scraping API, without worrying about proxies, browsers, or CAPTCHA handling. — JSON: /api/data/apis/scraperapi
- [ScrapingBee](/apis/scrapingbee): ScrapingBee is the best web scraping API that handles proxies and headless browsers for you — so you can focus on extracting the data you need. — JSON: /api/data/apis/scrapingbee
- [Semrush API](/apis/semrush): Semrush API (Application Programming Interface) is a method of extracting raw Semrush data without manually logging into the platform. — JSON: /api/data/apis/semrush
- [SendGrid](/apis/sendgrid): Email at scale, proven deliverability, and so much more — JSON: /api/data/apis/sendgrid
- [SerpApi](/apis/serpapi): SerpApi is a real-time API to access Google search results. We handle proxies, solve captchas, and parse all rich structured data for you. — JSON: /api/data/apis/serpapi
- [Serpstat API](/apis/serpstat): The most cost-effective API SEO data provider — JSON: /api/data/apis/serpstat
- [SparkPost](/apis/sparkpost): The world's most powerful email delivery solution is now yours in a developer-friendly, quick to set up cloud service. — JSON: /api/data/apis/sparkpost
- [SpyFu API](/apis/spyfu): Customize your marketing stack with the SpyFu API — JSON: /api/data/apis/spyfu
- [Stripe](/apis/stripe): Financial infrastructure to grow your revenue. — JSON: /api/data/apis/stripe
- [VALUE SERP](/apis/valueserp): Get real-time and reliable search data from the world's best value SERP API – VALUE SERP — JSON: /api/data/apis/valueserp
- [Zenserp](/apis/zenserp): Zenserp lets you fetch live Google search results through a fast and stable SERP API. — JSON: /api/data/apis/zenserp
- [Zyte API](/apis/zyte): Effortlessly scrape data with our all-in-one web scraping API. Unblocking, browser rendering and web data extraction in one full-stack web scraper. — JSON: /api/data/apis/zyte