AI assistants: Jsonpage in Claude, Cursor and VS Code

Q: Which address should I use?

The server address is https://mcp.jsonpage.com/mcp.

What your assistant can do

Once connected, your assistant calls Jsonpage by itself when you ask about a company. It changes nothing: every tool is read-only, with your key and your usual quotas.

Example conversation

Example

You: Is my supplier EXAMPLE SARL (company number 123456782) active, and is its VAT number FR12123456782 valid?
Assistant: [calls check_company and validate_vat]
Assistant: EXAMPLE SARL is active, based in Lyon. VAT number FR12123456782 is valid. Checked on 16 October 2026 at 09:30 UTC.
You: Any changes on my monitored companies this week?
Assistant: [calls get_monitor_events]
Assistant: Two events: an address change and an activity change. A missing piece of information is reported as unavailable, nothing is invented.

Connect your assistant

Claude Code

Create a key in your dashboard, then run this command, replacing YOUR_API_KEY:

claude mcp add --transport http jsonpage https://mcp.jsonpage.com/mcp --header "Authorization: Bearer YOUR_API_KEY"

Other MCP clients

Clients that accept a remote server with a header (Cursor, VS Code, Claude Desktop depending on the version) use this JSON, to adapt to your client's file:

{
  "mcpServers": {
    "jsonpage": {
      "type": "http",
      "url": "https://mcp.jsonpage.com/mcp",
      "headers": { "Authorization": "Bearer YOUR_API_KEY" }
    }
  }
}

The key can also be sent in the X-API-Key header. Do not share it: if it leaks, renew it in the dashboard.

The five tools

Tool	What it does	Parameters
Search a company	Finds companies by name: identity, status, legal form, activity.	`query, country, active_only, limit`
Check a company	Checks a company number (SIREN or SIRET) or a global identifier: existence, activity, address.	`identifier`
Validate a VAT number	Checks a VAT number with its country code: format, registration, answer of the member state.	`vat_number, requester_vat`
Check an EORI number	Checks an EORI number with its country code.	`eori_number`
Read events	Reads the changes detected on the companies you already monitor.	`company_id, after, limit`

search_company check_company validate_vat check_eori get_monitor_events

Good to know

Read-only. No tool creates, changes or deletes anything. Monitors are managed in your dashboard.
Your quotas. Each tool uses requests of your plan, like the API. A missing or invalid key gets a 401 error.
Verification date. Every result carries a checked_at field in ISO 8601 format (UTC).
Nothing invented. A missing piece of data is returned as "information indisponible".

Frequently asked questions

Do I need a special plan?+

No. The server uses your current API key and plan, with no new account.

Can my assistant change my data?+

No. Every tool is read-only.

Which address should I use?+

The server address is https://mcp.jsonpage.com/mcp.

Ask Jsonpage from your AI assistant