cobalt_tin_verify
Pack: cobalt · Endpoint: https://gateway.pipeworx.io/cobalt/mcp
Verify a business TIN/EIN against IRS records — confirms a 9-digit EIN matches the legal business name on file with the IRS. Returns match status, IRS code/reason and last-checked date. Synchronous (<5s). Example: cobalt_tin_verify({ tin: “123456789”, businessName: “Acme Corp”, _apiKey: “your-key” })
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
tin | string | yes | The 9-digit EIN/TIN, digits only (no dashes), e.g. “123456789”. |
businessName | string | yes | The legal business name exactly as filed with the IRS. |
_apiKey | string | yes | Cobalt Intelligence API key. |
Example call
curl -X POST https://gateway.pipeworx.io/cobalt/mcp \
-H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"cobalt_tin_verify","arguments":{}}}'Connect
Add this to your MCP client config, or use one-click install buttons:
{
"mcpServers": {
"cobalt": {
"url": "https://gateway.pipeworx.io/cobalt/mcp"
}
}
}See Getting Started for client-specific install steps.