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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.

Google Opal logo
Google Opal
✓ verifiedFree

Google Labs experiment for building and sharing AI mini-apps from natural-language prompts, no coding required.

2.1M visits/mo
Builder.io logo
Builder.io
✓ verifiedFreemium

Visual development platform with AI design-to-code, a visual editor and headless CMS so teams and agents ship UI in real code.

806K visits/mo
The New GitBook logo
The New GitBook
✓ verifiedFreemium

Documentation platform for publishing accurate, AI-ready docs sites, with Git sync and an MCP server for AI tools.

653K visits/mo2.9K saves
APIMart logo
APIMart
✓ verifiedPaid

Unified API gateway to 500+ AI models (GPT, Claude, Sora, image/video) with OpenAI-compatible endpoints and discounted usage.

328K visits/mo1.9K saves
Pricing

No public pricing

No public pricing

Free: $0 per user/mo (60 agent credits)
Pro: $24/user/mo (500 credits)
Team: $40/user/mo

No public pricing

Free trial available

No public pricing

Core features
  • CSV to API conversion
  • Data parsing (CSV to JSON)
  • Filtering capabilities
  • Build AI mini-apps from natural-language prompts
  • Visual editor for prompt/tool workflows
  • Share created apps with others
  • No-code AI app prototyping
  • AI design-to-code (Figma to code)
  • Visual editor tied to your components
  • Headless/visual CMS
  • AI agents (Builder-Agent) that open PRs
  • Integrations: GitHub, GitLab, Bitbucket, Figma, VS Code
  • Roles, reviews and collaboration
  • Publish structured documentation sites
  • Git sync for docs-as-code workflows
  • AI setup agent to build and import docs
  • GitBook MCP server for AI access
  • Enterprise controls
  • Free tier to start
  • Single OpenAI-compatible API for 500+ models
  • Chat, image, video and audio models
  • Discounted per-request pricing
  • One dashboard for keys, quotas and usage
  • Multi-region routing and failover (99.9% uptime)
  • Multiple payment methods incl. crypto
Use cases
  • Sharing CSV data with a team via an API
  • Creating a public API from CSV data
  • Filtering and accessing specific data within a CSV file programmatically
  • Prototyping an AI workflow quickly
  • Sharing a custom AI mini-app
  • Automating a task with chained prompts
  • Convert designs to production code
  • Let non-developers edit pages visually
  • Manage content with a headless CMS
  • Collaborate across design, PM and engineering
  • Publish product and API documentation
  • Maintain docs-as-code with Git sync
  • Make docs consumable by AI assistants
  • Import existing docs into a hosted site
  • Accessing many AI models via one API
  • Cutting AI model API costs
  • Building multimodal AI apps
  • Consolidating AI billing and keys
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