Linear API vs Notion API

Detailed side-by-side comparison to help you choose the right tool

Linear API

🔴Developer

Project Management

GraphQL API, MCP server, webhooks, and developer docs for building Linear integrations and AI agent workflows.

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🔴Developer

Voice AI Tools

Developer platform for building integrations with Notion workspaces. Access databases, pages, and content programmatically for AI agent workflows.

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Feature	Linear API	Notion API
Category	Project Management	Voice AI Tools
Pricing Plans	8 tiers	4 tiers
Starting Price	$0	Contact
Key Features	• GraphQL API with schema explorer • Native MCP server documentation • Real-time WebSocket subscriptions	• Database Operations • Page Management • Block-Level Content

✓Uses Linear's GraphQL API for structured access to issues, projects, teams, comments, and workflow data.
✓Supports both personal API keys and OAuth 2.0 depending on integration needs.
✓Includes a TypeScript SDK for common JavaScript and TypeScript development workflows.
✓Webhooks can reduce polling for event-driven integrations.
✓Webhook security and OAuth scopes support production integration patterns.
✓Native MCP and agent documentation make it practical for AI coding and workflow assistants.

✗The API is GraphQL-first, so REST-focused teams may face a learning curve.
✗Rate limits and plan limits require careful handling in large or high-volume integrations.
✗Linear explicitly favors its own workflow model, which may not fit every project management process.
✗Agent APIs and MCP workflows can change as AI product surfaces mature.
✗Webhook delivery still requires reliable endpoint hosting, retries, and observability.

✓No separate API pricing - included with existing Notion subscription plans
✓Comprehensive access to all Notion features including databases and rich content
✓Strong authentication and permission system maintains workspace security
✓Real-time webhook support enables responsive AI agent workflows
✓Extensive documentation and SDK support accelerates integration development

✗Strict rate limit of 3 requests/second per integration with additional payload size limits (500KB)
✗Complex size constraints on requests - 1000 block elements max, 2000 character limits on URLs/text
✗API complexity requires significant development effort for advanced integrations beyond basic CRUD operations
✗Dependent on Notion subscription costs which scale with user count for team workspaces
✗Rate limits may change without notice as Notion adjusts for demand and reliability

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Security Feature	Linear API	Notion API
SOC2	✅ Yes	✅ Yes
GDPR	✅ Yes	✅ Yes
HIPAA	—	—
SSO	✅ Yes	✅ Yes
Self-Hosted	❌ No	❌ No
On-Prem	❌ No	❌ No
RBAC	✅ Yes	✅ Yes
Audit Log	✅ Yes	✅ Yes
Open Source	❌ No	❌ No
API Key Auth	✅ Yes	✅ Yes
Encryption at Rest	✅ Yes	✅ Yes
Encryption in Transit	✅ Yes	✅ Yes
Data Residency	Not specified in this record	—
Data Retention	Plan and workspace dependent	configurable

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