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Connect Json5 Resilient Parser 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. Turn messy LLM outputs into valid, strict JSON.

Ask AI about this Connector

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.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

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.

A futuristic MCP client docking bay
V8 Isolate01

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.

Kill Switch02

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.

FinOps per User03

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 · 1 capability

We ship only the actions that matter.

Capability set01 / 01

01

1 capability in this set.

Part of 1 available through JSON5.

  1. 01

    Parse json5

    This capability converts any JSON5-compliant string into strict RFC 8259 JSON. It cleans up trailing commas, single quotes, and comments to ensure the output is ready for standard parsers.

Real work

What teams actually run

01

Config File Repair

Your agent generates a configuration file with comments and trailing commas that needs to be saved as strict JSON.

02

LLM Data Cleaning

You take raw, unformatted JSON output from an AI client and pass it through the MCP to make it usable in a script.

03

Data Pipeline Sanitization

The MCP acts as a pre-processing step to ensure AI-generated data doesn't crash your production parsers.

04

Automated Tooling

Your agent uses the capability to normalize various data formats into a single, standard JSON type.

Automate a task

Put JSON5 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

JSON5 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.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put JSON5 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

948ms average. Fast in production.

JSON5 is checked daily against the live service.

Daily averagePeak 1015ms
Oct 3Today
Fastest day
701ms
Slowest day
1015ms
14-day trend
Improving-8%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 1 capability arrives 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 JSON5, so you can see the experience inside your AI.

It does not authenticate your account with JSON5. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

JSON5 Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_ipuPbcyZFLzpHTIX4HAe9NmAw6sUUhJhrkFNUBqr/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — JSON5 capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "json5-resilient-parser-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_ipuPbcyZFLzpHTIX4HAe9NmAw6sUUhJhrkFNUBqr/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 JSON5 in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work JSON5 owners hand off.

Developers and engineers who build workflows involving AI-generated data structures.

  • 01

    Software Engineers

    They hand off messy AI configurations to the MCP to get valid code-ready data.

  • 02

    DevOps Engineers

    They use it to clean up automated configuration files generated by agents.

  • 03

    Data Engineers

    They use the MCP to sanitize non-standard JSON formats before ingestion.

FAQ

Questions JSON5 owners ask.

  • 01

    What is the difference between JSON5 and strict JSON?

    JSON5 allows for things like trailing commas, single quotes, and comments, while strict JSON (RFC 8259) does not. This MCP converts the former into the latter.

  • 02

    Can this MCP fix trailing commas?

    Yes, it specifically handles trailing commas that cause standard JSON parsers to fail.

  • 03

    Does it work with single quotes?

    Yes, it converts single quotes into the double quotes required for valid JSON.

  • 04

    Which AI clients can use this MCP?

    Any MCP-compatible client like Claude, Cursor, Windsurf, or VS Code can use it.

  • 05

    What happens to inline comments?

    The MCP strips out both // and /**/ style comments during the parsing process.

  • 06

    What makes this different from JSON.parse()?

    JSON.parse() rejects trailing commas, comments, single quotes, and unquoted keys. JSON5 accepts all of these and outputs strict RFC 8259 JSON.

  • 07

    Does it support JavaScript-style comments?

    Yes. Both single-line (//) and multi-line (/ /) comments are supported and stripped from the output.

  • 08

    Can it handle unquoted object keys?

    Yes. {name: 'Alice'} is valid JSON5 and will be converted to {"name": "Alice"} in the strict output.

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