
Connect JSONBin.io to ChatGPT, Claude and Gemini
Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Give your AI agent a persistent place to store and query JSON data.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Your AI does the work. We keep it safe and sound.
No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.
Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

Each Connector runs inside its own sealed environment.
Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.
One switch stops every agent. Instantly.
One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.
Spending limits that pause instead of surprise.
Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.
Three controls, built into the layer your AI connects through.
Curated set · 27 capabilities
We ship only the actions that matter.
01-04
4 capabilities in this set.
Part of 27 available through JSONBin.io.
- 01
Count bin versions
This capability tells you how many versions of a specific JSON bin exist.
- 02
Create collection
Use this to start a new collection for grouping your bins.
- 03
Create schema
This capability generates a new JSON schema document.
- 04
Create xl bin
This capability creates an XL JSON bin for files up to 10MB, requiring a paid plan and early access.
05-08
4 capabilities in this set.
Part of 27 available through JSONBin.io.
- 05
Delete access key
Use this to remove an existing access key.
- 06
Delete all bin versions
This capability wipes every version of a specific JSON bin.
- 07
Delete bin
Use this to permanently remove a JSON bin.
- 08
Delete xl bin
This capability deletes an XL JSON bin.
09-12
4 capabilities in this set.
Part of 27 available through JSONBin.io.
- 09
Download usage logs
This capability lets you download usage logs for a specific date.
- 10
Fetch collection bins
Use this to get a list of all bins inside a specific collection.
- 11
List collections
This capability returns a list of all your existing collections.
- 12
List usage log dates
Use this to see which dates have available usage logs.
13-16
4 capabilities in this set.
Part of 27 available through JSONBin.io.
- 13
Read schema
This capability retrieves a specific JSON schema document.
- 14
Read xl bin
Use this to read the contents of an XL JSON bin.
- 15
Remove schema from collection
This capability detaches a schema from a collection.
- 16
Update bin
Use this to modify the contents of an existing JSON bin.
17-20
4 capabilities in this set.
Part of 27 available through JSONBin.io.
- 17
Update bin name
This capability lets you change the name of a JSON bin.
- 18
Fetch uncategorized bins
Use this to find all bins that aren't in a collection.
- 19
List access keys
This capability shows you all your current access keys.
- 20
Add schema to collection
Use this to attach a schema to a collection for data validation.
21-24
4 capabilities in this set.
Part of 27 available through JSONBin.io.
- 21
Create access key
This capability creates a new restricted access key.
- 22
Create bin
Use this to create a new JSON bin with your provided data.
- 23
Read bin
This capability reads a bin and can use JSON Path to filter for specific data or fetch specific versions.
- 24
Update bin privacy
Use this to change a bin from public to private or vice versa.
25-27
3 capabilities in this set.
Part of 27 available through JSONBin.io.
- 25
Update collection name
This capability lets you rename a collection.
- 26
Update schema
Use this to modify an existing JSON schema.
- 27
Update schema name
This capability allows you to change the name of a JSON schema document.
Real work
What teams actually run
App Configuration
Store your application settings in a bin so your agent can read and update them as needed.
Prototyping Backends
Use bins as a temporary data layer while you build out a new application.
State Management
Keep track of an agent's progress or current state in a JSON file.
Mocking APIs
Create bins that act as mock endpoints for testing your code.
Automate a task
Put JSONBin.io to work on one thing.
Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.
One connector, every AI
JSONBin.io works with the most popular AI clients.
These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.
Claude
ChatGPT
Gemini
Perplexity
Grok
Microsoft Copilot
Cursor
VS Code
Windsurf
JetBrains
Cline
LangChain
Vercel AI SDK
Lovable
Z.ai
Raycast
Qwen Code
Kimi Code
Le ChatBuilding your own app? The connector is yours to use.
You don't need a client to put JSONBin.io to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.
Observed, not estimated
1083ms average. Fast in production.
JSONBin.io is checked daily against the live service.
- Fastest day
- 792ms
- Slowest day
- 1348ms
- 14-day trend
- Improving-5%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 27 capabilities arrive ready to run.
Preview access · not provider authentication
The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of JSONBin.io, so you can see the experience inside your AI.
It does not authenticate your account with JSONBin.io. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
JSONBin.io Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_athZnerYbK0rQNGUvk71pdB6RUnmoKqEpzl5PGVK/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — JSONBin.io capabilities are ready to use.
{
"mcpServers": {
"jsonbinio-mcp": {
"url": "https://edge.vinkius.com/vk_preview_athZnerYbK0rQNGUvk71pdB6RUnmoKqEpzl5PGVK/mcp"
}
}
}
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Step-by-step instructions for each client are in the guide. How to connect
Guided setup for Claude? Set up JSONBin.io in Claude and other AIs
Who it's for
Built for the work JSONBin.io owners hand off.
This MCP is built for technical users who need a quick, no-setup way to give their AI agents a place to store data.
- 01
Developers
They use it to store API mock data or app configurations without a database.
- 02
Data Analysts
They use it to save processed JSON results and query them via chat.
- 03
Automation Engineers
They use it to maintain state across different agent sessions and workflows.
FAQ
Questions JSONBin.io owners ask.
- 01
How do I connect this MCP to my AI client?
You subscribe to the MCP on Vinkius and enter your JSONBin.io Master Key and Access Key. Once connected, it is ready to use in any compatible client like Claude or Cursor.
- 02
Can I store large files?
Yes, you can use the XL bin capability to store JSON files up to 10MB, though this requires a paid plan and early access.
- 03
How can my agent find specific data within a bin?
Your agent can use JSON Path expressions to filter through a bin and retrieve only the specific data points it needs.
- 04
Is my data secure?
You can manage privacy by using the capability to set bins to private, and you can create restricted access keys to control who can reach your data.
- 05
Can I organize my data?
Yes, you can create collections to group related bins together for better project management.
- 06
Can I filter the data inside a bin without downloading the whole JSON?
Yes. When using the read_bin capability, you can provide a json_path expression to filter the data on the server side and retrieve only the matching subset.
- 07
How do I store datasets larger than the standard bin limit?
You should use the create_xl_bin capability. This is specifically designed for large JSON files (up to 10MB) and requires a paid JSONBin.io plan with Early Access enabled.
- 08
Is it possible to change a bin from public to private after creation?
Absolutely. Use the update_bin_privacy capability with the target bin_id and set is_private to true or false as needed.
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Connect JSONBin.io to Claude, Cursor, ChatGPT & more
