docs: add ClickUp integration setup guide (ext-393)

[devin-ai-integration]

ClickUp Integration Documentation

This PR adds comprehensive documentation for the ClickUp integration, including a detailed setup guide for creating and configuring OAuth credentials.

Changes

• Added complete setup guide with step-by-step instructions
• Updated access requirements section
• Reformatted useful links into a table for better readability
• Enhanced API gotchas section with important considerations

References

• ClickUp API Documentation
• ClickUp Authentication Documentation
• ClickUp OAuth Flow
• ClickUp OAuth Endpoints

Link to Devin run: https://app.devin.ai/sessions/94f14c04f0bf4a7bb75ab740686940de
Requested by: khaliq@nango.dev

---

This PR significantly expands the ClickUp integration documentation by providing a detailed, step-by-step OAuth setup guide, clarifying access requirements, and reformatting and enriching reference links and API gotchas. The update replaces placeholders and previous incomplete content with actionable instructions on app registration, OAuth credential management, and integration steps with Nango, while also addressing API behaviors specific to ClickUp (e.g., scope handling and workspace authorization). Older notes, duplicate sections, and unnecessary imports were removed for clarity.

Key Changes:
• Added a comprehensive, multi-step ClickUp OAuth setup guide using and components.
• Clarified the access requirements table (noting free accounts and lack of review/audit needs).
• Replaced and expanded useful links with a clear list of authoritative API documentation and endpoints.
• Expanded the API gotchas section to explain scope handling and workspace/authorization nuances.
• Removed placeholders, outdated notes, and unnecessary import lines.

Affected Areas:
• docs-v2/integrations/all/clickup.mdx

This summary was automatically generated by @propel-code-bot

[linear]

EXT-393 clickup: document access requirements and setup guide.

[devin-ai-integration]

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[devin-ai-integration]

I've recorded a video demonstrating the complete setup process for ClickUp integration. The video shows the OAuth app creation process, including navigating the developer portal, configuring redirect URIs, and setting up necessary permissions.

[devin-ai-integration]

Closing due to inactivity for more than 7 days.