Home / Servers / PagerDuty API / list_extension_schemas

List extension schemas

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

List extension schemas List all extension schemas. A PagerDuty extension vendor represents a specific type of outbound extension such as Generic Webhook, Slack, ServiceNow. For more information see the API Concepts… [GET /extension_schemas]

Name on the gateway: pagerduty_api__list_extension_schemas · read-only.

Parameters

NameTypeDescription
limitintegerThe number of results per page.
offsetintegerOffset to start pagination search results.
totalbooleanBy default the total field in pagination responses is set to null to provide…

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:

call_tool arguments
{
  "name": "pagerduty_api__list_extension_schemas",
  "arguments": {}
}

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"

Try asking

Use the list extension schemas tool with limit set to ….

More from PagerDuty API