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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.

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exa.ai logo
exa.ai
✓ verifiedFreemium

Search, crawling and research API built for AI agents, with token-efficient results and structured web-data enrichment.

761K visits/mo1.7K saves
VideoSDK logo
VideoSDK
Free trial

Developer APIs and SDKs to embed real-time voice, video, live streaming, and AI voice agents into web and mobile apps.

164K visits/mo
Gladia logo
Gladia
✓ verifiedFreemium

Speech-to-text API infrastructure with multilingual real-time and batch transcription for building voice products.

211K visits/mo
Capsolver logo
Capsolver
✓ verifiedPaid

Automatic AI CAPTCHA solver for reCAPTCHA and Cloudflare; high traffic but bypass niche.

281K visits/mo787 saves
HTTPie logo
HTTPie
✓ verifiedFreemium

Human-friendly API testing client for terminal, desktop and web, known for readable syntax; the CLI is open source.

82K visits/mo
Pricing
Free: $0 (20,000 requests/mo)
Search: $7/1k requests
Contents: $1/1k pages
Deep Search: $12-15/1k requests
Monitors: $15/1k requests
Agent: $0.012-$1.00/run
Pay-As-You-Go: audio from $0.001/min
Pay-As-You-Go: video from $0.004/min

Free trial available

No public pricing

Free trial available

No public pricing

No public pricing

Core features
  • Web search API tuned for agents
  • Full-page contents with token-efficient highlights
  • Asynchronous agents for deep research and enrichment
  • Structured outputs with grounded citations
  • Web monitors that track new events on a schedule
  • Zero data retention and SOC 2 Type II controls
  • Audio and video calling APIs and SDKs
  • Interactive live streaming APIs and SDKs
  • AI voice agent integration
  • Web and mobile platform support
  • Pay-as-you-go pricing with one-time $20 free credit
  • Real-time multilingual speech-to-text (<300ms)
  • Batch/async transcription
  • Solaria speech models
  • Key-entity capture and enrichment
  • EU data residency
  • Free tier and playground
  • Automatic CAPTCHA solving
  • AI-powered automation
  • Image to text conversion
  • Browser extensions for CAPTCHA solving
  • Multi-language support
  • Human-friendly command-line HTTP client
  • Web and desktop GUI apps
  • Simple, readable request syntax
  • Request export/import and history
  • Path parameters and 'copy as command'
  • Open-source terminal version
Use cases
  • Give coding agents current docs and repo context
  • Power chatbots with real-time web answers
  • Enrich company and people data at scale
  • Monitor the web for fresh events
  • Embedding video and audio calling into web and mobile apps
  • Adding interactive live streaming to a platform
  • Building AI voice agent experiences into products
  • Transcribe voice-agent and contact-center calls
  • Power meeting-assistant note taking
  • Generate subtitles and media transcripts
  • Build voice products on one API
  • Web testing
  • Social media automation
  • Data collection
  • Market research
  • SEO optimization
  • Online shopping automation
  • Online gaming
  • Financial services automation
  • Testing REST APIs
  • Sending and inspecting HTTP requests
  • Debugging web services
  • Sharing API requests across a team
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