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Create a signing key
An MCP tool from the Vercel API server, hosted on mcp.hjlabs.in.
Create a signing key Create a new signing key for a KMS issuer. Depending on the activation mode, the key is activated automatically once its public key has propagated, or manually via the activate endpoint. [POST /v1/kms/issuers/{issuerId}/keys]
Name on the gateway: vercel_api__create_kms_signing_key · may change things.
Parameters
| Name | Type | Description |
|---|---|---|
issuerId required | string | The ID of the issuer. |
teamId | string | The Team identifier to perform the request on behalf of. |
slug | string | The Team slug to perform the request on behalf of. |
activation | automatic | manual | Whether the new key is activated automatically after its public key has… |
revokePreviousAfterHours | number | For automatic activation, how many hours after activation the previous signing… |
revokePreviousAt | string | Deprecated. The ISO date string or timestamp when the previous signing key… |
importKey | string | The PEM-encoded private key to use for the issuer. |
importKeyId | string | The key id to use as the imported key's JWT/JWKS kid. Only allowed when… |
How to call it
Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:
{
"name": "vercel_api__create_kms_signing_key",
"arguments": {
"issuerId": "…"
}
}Or connect the Vercel API server directly, which lists 472 tools including this one:
claude mcp add --transport http hj-vercel-api https://mcp.hjlabs.in/mcp/vercel-api \
--header "Authorization: Bearer YOUR_API_KEY"Try asking
Use the create a signing key tool with issuerId set to ….