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Update a Field

An MCP tool from the PagerDuty API server, hosted on mcp.hjlabs.in.

Update a Field Update a Custom Field for Services. Scoped OAuth requires: custom_fields.write [PUT /services/custom_fields/{field_id}]

Name on the gateway: pagerduty_api__update_service_custom_field · may change things.

Parameters

Name	Type	Description
`field_id` required	`string`	The ID of the field.
`field` required	`object`	Details of the custom field to be updated.

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments

{
  "name": "pagerduty_api__update_service_custom_field",
  "arguments": {
    "field_id": "…",
    "field": "…"
  }
}

Or connect the PagerDuty API server directly, which lists 459 tools including this one:

Run in your terminal

claude mcp add --transport http hj-pagerduty-api https://mcp.hjlabs.in/mcp/pagerduty-api \
  --header "Authorization: Bearer YOUR_API_KEY"

Use the update a field tool with field_id set to ….