JSONPlaceholder MCP Connector for Claude

Connect to JSONPlaceholder, the industry-standard fake REST API, to simulate data interactions within your AI workflows. Perfect for developers testing MCP integrations or prototyping agentic behaviors without a real backend.

What you can do

• Post Management — Use list_posts, get_post, create_post, update_post, patch_post, and delete_post to test full CRUD lifecycles.
• Social Interactions — Query comments via list_comments and get_comment to simulate discussion threads and linking.
• Media Handling — Explore list_albums, get_album, list_photos, and get_photo to manage hierarchical media metadata.
• Task Tracking — Use list_todos to verify state-based logic and completion status in your agents.
• Data Filtering — Test precise data retrieval by filtering lists by userId, postId, or albumId directly through tool parameters.

How it works

1. Subscribe to this server
2. No real API key is required for this public service, but you can provide a placeholder string if prompted
3. Start prototyping your data-driven agents immediately

Who is this for?

• MCP Developers — verify that your client correctly handles tool calls, pagination, and JSON responses
• AI Researchers — prototype complex agent behaviors that require structured data interaction without setting up a database
• Product Designers — demonstrate AI-driven workflows using realistic (but safe) mock data