JSONPlaceholder MCP Server with 21 Tools for Claude, Cursor, and AI Agents

Name: JSONPlaceholder
Price: 29 USD
Availability: InStock
Rating: 4.9 (1 reviews)
Author: Vinkius

GDPR Free for Subscribers

Access fake online REST API for testing and prototyping — manage posts, comments, albums, photos, and todos directly from your AI agent. Vinkius routes your AI agents directly to JSONPlaceholder through a governed connection. 21 tools ready to use with Claude, ChatGPT, Cursor, or any AI agent — no hosting, no setup, connect in 30 seconds.

Built for AI Agents by Vinkius

Ask AI about this server

Open in ChatGPT Open in Claude Open in Perplexity

Compatible with every major AI agent and IDE

Claude

ChatGPT

Cursor

Gemini

Windsurf

VS Code

JetBrains

Vercel

+ other MCP clients

AI Agent→Vinkius

High Security·Kill Switch·Plug and Play

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

What is the JSONPlaceholder MCP Server?

The JSONPlaceholder MCP Server routes AI agents like Claude, ChatGPT, and Cursor directly to JSONPlaceholder via 21 tools. Access fake online REST API for testing and prototyping — manage posts, comments, albums, photos, and todos directly from your AI agent. Powered by Vinkius — your credentials stay on your side of the connection, every request is auditable. Connect in under 2 minutes.

Built-in capabilities (21)

create_postdelete_postget_albumget_album_photosget_commentget_photoget_postget_post_commentsget_todoget_userget_user_albumsget_user_postsget_user_todoslist_albumslist_commentslist_photoslist_postslist_todoslist_userspatch_postupdate_post

Tools for your AI Agents to operate JSONPlaceholder

Ask your AI agent "List all posts for user 1." and get the answer without opening a single dashboard. With 21 tools connected to real JSONPlaceholder data, your agents reason over live information, cross-reference it with other MCP servers, and deliver insights you would spend hours assembling manually.

Works with Claude, ChatGPT, Cursor, and any MCP-compatible client. Powered by Vinkius — your credentials never touch the AI model, every request is auditable. Connect in under two minutes.

Why teams choose Vinkius

One subscription gives you the infrastructure to connect your AI agents to thousands of MCP servers — and deploy your own to the Vinkius Edge. Your credentials stay yours. Your data flows directly between your agent and the API. DLP blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade routing and governance, zero maintenance.

Build your own MCP Server with our secure development framework →

The JSONPlaceholder App Connector works with every AI agent you already use

…and any MCP-compatible client

Use all 21 JSONPlaceholder tools with your AI agents right now

Update post on JSONPlaceholder

Update a post (replace)

What the JSONPlaceholder MCP Server unlocks

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

Frequently asked questions about the JSONPlaceholder MCP Server

Can I filter posts by a specific user?

Yes! Use the list_posts tool with the userId parameter to retrieve only the posts created by that specific user ID.

Does creating or updating a post actually save the data?

No. JSONPlaceholder is a fake API. Tools like create_post, update_post, and delete_post simulate the response as if the action succeeded, but the server state remains unchanged.

How do I find comments for a specific post?

Use the list_comments tool and provide the postId. This will return all comments associated with that specific post ID.

We built the connector to JSONPlaceholder. Now put your agents to work. Fully governed.

Vinkius is the AI Gateway with managed hosting. Stop building connectors. Every connection runs inside eight layers of security.

How it works

Infrastructure

Hosted, sandboxed, and live on AWS. You don't provision anything. You don't maintain anything. You connect.

Visibility

Every tool call, every token, every response. Logged and auditable. Data flows direct from JSONPlaceholder to your agent. Nothing is stored on our side. Ever.

Control

Eight governance layers on every request. Sensitive data redacted before it reaches the model. Kill switch if anything goes sideways. Always on.