JSONPlaceholder MCP Server for Claude DesktopGive Claude Desktop instant access to 21 tools to Create Post, Delete Post, Get Album, and more

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

GDPR Free for Subscribers

Claude Desktop is Anthropic's native application for interacting with Claude AI models on macOS and Windows. It was the first consumer application to ship with built-in MCP support, making it the reference implementation for the Model Context Protocol standard.

Ask AI about this MCP Server for Claude Desktop

Open in ChatGPT Open in Claude Open in Perplexity

The JSONPlaceholder MCP Server for Claude Desktop is a standout in the Productivity category — giving your AI agent 21 tools to work with, ready to go from day one.

Built for AI Agents by Vinkius

Vinkius delivers Streamable HTTP and SSE to any MCP client

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+ other MCP clients

Classic Setup·json

{
  "mcpServers": {
    "jsonplaceholder": {
      // Your Vinkius token. get it at cloud.vinkius.com
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

RecommendedModern Approach — Zero Configuration

Vinkius Desktop App

The modern way to manage MCP Servers — no config files, no terminal commands. Install JSONPlaceholder and 4,000+ MCP Servers from a single visual interface.

Download Free Open SourceNo signup required

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

About 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.

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.

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.

update

Update post on JSONPlaceholder

Update a post (replace)

Connect JSONPlaceholder to Claude Desktop via MCP

Follow these steps to wire JSONPlaceholder into Claude Desktop. The entire setup takes under two minutes — your credentials stay safe behind Vinkius.

Open Claude Desktop Settings

Go to Settings → Developer → Edit Config to open claude_desktop_config.json

Add the MCP Server

Paste the configuration above into the mcpServers section

Restart Claude Desktop

Close and reopen Claude Desktop to load the new server

Start using JSONPlaceholder

Look for the 🔌 icon in the chat. your 21 tools are now available

Why Use Claude Desktop with the JSONPlaceholder MCP Server

Claude Desktop by Anthropic provides unique advantages when paired with JSONPlaceholder through the Model Context Protocol.

Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available

Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface

Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions

Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network

JSONPlaceholder + Claude Desktop Use Cases

Practical scenarios where Claude Desktop combined with the JSONPlaceholder MCP Server delivers measurable value.

Interactive data exploration: ask Claude to query DNS records, look up WHOIS data, and cross-reference results in a single conversation

Ad-hoc security audits: type a domain name and let Claude enumerate subdomains, check DNS history, and flag configuration anomalies. all through natural language

Executive briefings: generate comprehensive domain intelligence reports by asking Claude to compile findings into a formatted summary

Learning and training: new team members can explore API capabilities conversationally without needing to read documentation

Example Prompts for JSONPlaceholder in Claude Desktop

Ready-to-use prompts you can give your Claude Desktop agent to start working with JSONPlaceholder immediately.

"List all posts for user 1."

"Get the details for comment ID 5."

"Create a new post for user 10 with title 'MCP Test' and body 'Testing JSONPlaceholder'."

Troubleshooting JSONPlaceholder MCP Server with Claude Desktop

Common issues when connecting JSONPlaceholder to Claude Desktop through Vinkius, and how to resolve them.

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).

Authentication error

Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.

Tools not showing in chat

Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.

JSONPlaceholder + Claude Desktop FAQ

Common questions about integrating JSONPlaceholder MCP Server with Claude Desktop.

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.