Business apps with APIs for AI agents
10 APIs compared on price, free tier, MCP support and real usage. Prices from the vendors' pricing pages, checked Oct 9, 2026.
| API | Free | Price | SDK downloads / wk | GitHub stars | MCP |
|---|---|---|---|---|---|
| Notion All-in-one workspace for organizing work with databases, docs, AI features, and integrations. |
— | $10 per 1,000 monthly Notion credits (for Custom Agents/Workers) | — | — | |
| monday.com Work management platform with AI agents, automations, and API calls for team collaboration. |
Up to 2 seats, 3 boards, 3 docs, 200+ templates | Free plan · paid from $9/mo | — | — | MCP |
| Airtable Platform for organizing work with databases, automations, and collaborative applications. |
Free plan available, no cost for users | Free plan · paid from $20/mo | — | — | |
| Asana Project management platform for teams to track tasks, projects, and goals. |
Free forever with 2 users, unlimited tasks... | Free plan · paid from $10.99/mo | — | — | |
| GitBook Create and publish product documentation with AI assistance and collaboration tools. |
Free plan for individuals, 1 user, 10... | Free plan · paid from $65/mo | — | — | |
| Intercom Customer service platform with AI agent for resolving customer issues automatically. |
— | $0.99 per Fin outcome | — | — | |
| Linear Project management and issue tracking platform with AI agent capabilities. |
Unlimited members, 2 teams, 250 issues | Free plan · paid from $10/mo | — | — | |
| Trello Team collaboration board with cards, lists, and automation for task management. |
Up to 10 boards per Workspace, unlimited... | Free plan · paid from $5/mo | — | — | |
| Webflow Website builder and hosting platform with CMS, hosting, and AI tools. |
Free plan with Webflow.io domain, 2 static... | Free plan · paid from $15/mo | — | — | MCP |
| Cal.com Meeting scheduling and booking platform with calendar integration and automation. |
Free forever, 1 user, unlimited event types... | Free plan · paid from $12/mo | — | — |
Other categories
Web search APIs Scraping and crawling Browser automation (cloud) Code sandboxes Memory for agents Vector databases LLM gateways and routers Email sending Voice (speech-to-text, text-to-speech) Payments for agents Blockchain RPC and node providers DEX swap and liquidity APIs Crypto market and on-chain data 3D model generation Image generation APIs Sound effects and music generation Video generation APIs Model hosting and inference Embeddings and rerank Document parsing and OCR LLM observability and evals Error tracking and analytics Databases and backends Auth and user accounts File storage and media CDN Hosting and deployment SMS, chat and notifications Integrations and automation Maps and location Wallets, tokens and NFTs Speech-to-text and transcription