Claude DesktopIDE

JSONPlaceholder MCP Server

Bring Rest Api
to Claude Desktop

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

Learn how to connect JSONPlaceholder to Claude Desktop and start using 21 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.

GDPR Free for Subscribers

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

Unlock for AI Agents

Ask AI about this MCP Server ChatGPT Claude Perplexity

Compatible with every major AI agent and IDE

Claude

ChatGPT

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Gemini

Windsurf

VS Code

JetBrains

Vercel

+ other MCP clients

What is the JSONPlaceholder MCP Server?

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

Subscribe to this server
No real API key is required for this public service, but you can provide a placeholder string if prompted
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

Built-in capabilities (21)

create_post

Create a new post

delete_post

Delete a post

get_album

Get a specific album by ID

get_album_photos

Get photos for a specific album

get_comment

Get a specific comment by ID

get_photo

Get a specific photo by ID

get_post

Get a specific post by ID

get_post_comments

Get comments for a specific post

get_todo

Get a specific todo by ID

get_user

Get a specific user by ID

get_user_albums

Get albums for a specific user

get_user_posts

Get posts for a specific user

get_user_todos

Get todos for a specific user

list_albums

Can be filtered by userId. List all albums

list_comments

Can be filtered by postId. List all comments

list_photos

Can be filtered by albumId. List all photos

list_posts

Can be filtered by userId. List all posts

list_todos

Can be filtered by userId. List all todos

list_users

List all users

patch_post

Update a post (partial)

update_post

Update a post (replace)

Why Claude Desktop?

Claude Desktop is the definitive way to connect JSONPlaceholder to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 21 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.

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Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available
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Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface
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Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions
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Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network

See it in action

JSONPlaceholder in Claude Desktop

AI Agent→Vinkius

High Security·Kill Switch·Plug and Play

Why Vinkius

JSONPlaceholder and 4,000+ other MCP servers. One platform. One governance layer.

Teams that connect JSONPlaceholder to Claude Desktop through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.

4,000+MCP Servers ready

<40msCold start

60%Token savings

	Raw MCP	Vinkius
Server catalog	Find and host yourself	4,000+ managed
Infrastructure	Self-hosted	Sandboxed V8 isolates
Credential handling	Plaintext in config	Vault + runtime injection
Data loss prevention	None	Configurable DLP policies
Kill switch	None	Global instant shutdown
Financial circuit breakers	None	Per-server limits + alerts
Audit trail	None	Ed25519 signed logs
SIEM log streaming	None	Splunk, Datadog, Webhook
Honeytokens	None	Canary alerts on leak
Custom domains	Not applicable	DNS challenge verified
GDPR compliance	Manual effort	Automated purge + export

Unlock for AI Agents View step-by-step setup guide for Claude Desktop →

Enterprise Security

Why teams choose Vinkius for JSONPlaceholder in Claude Desktop

The JSONPlaceholder 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. All 21 tools execute in hardened sandboxes optimized for native MCP execution.

Your AI agents in Claude Desktop only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.

Unlock for AI Agents View full JSONPlaceholder details →

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

The Vinkius Advantage

How Vinkius secures
JSONPlaceholder for Claude Desktop

Every tool call from Claude Desktop to the JSONPlaceholder MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.

< 40msCold start

Ed25519Signed audit chain

60%Token savings

FAQ

Frequently asked questions

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.

How does Claude Desktop discover MCP tools?

When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.

What happens if the MCP server is temporarily unavailable?

Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.

Can I connect multiple MCP servers simultaneously?

Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.

Is there a limit on the number of tools per server?

Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.

Does Claude Desktop support Streamable HTTP transport?

Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.

Server not appearing after restart

Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).