---
title: Api Gateway Openapi Spec Authoring — Invoked Exchange skill
description: Writes, migrates, and fixes OpenAPI specs for Google Cloud API Gateway. Use when converting an OpenAPI 2.0 (Swagger) spec to OpenAPI 3.x, writing a new OpenAPI 3.x spec, or fixing a failed "gcloud api-gateway api-configs create", such as "extension is only supported in OpenAPI 2.x". Also use when quotas set with x-google-quota are never enforced, or when a backend receives path parameters as query parameters. Don't use for adding or debugging MCP tools (use api-gateway-mcp-server), backend lockdown or HTTP 429 tuning (use api-gateway-backend-security-and-rate-limiting), Cloud Endpoints, Apigee, or GKE Gateway API.
doc_version: "1.0"
last_updated: "2026-11-12T18:43:26.336Z"
canonical: https://invoked.ai/skills/api-gateway-openapi-spec-authoring
---

# Api Gateway Openapi Spec Authoring

Writes, migrates, and fixes OpenAPI specs for Google Cloud API Gateway. Use when converting an OpenAPI 2.0 (Swagger) spec to OpenAPI 3.x, writing a new OpenAPI 3.x spec, or fixing a failed "gcloud api-gateway api-configs create", such as "extension is only supported in OpenAPI 2.x". Also use when quotas set with x-google-quota are never enforced, or when a backend receives path parameters as query parameters. Don't use for adding or debugging MCP tools (use api-gateway-mcp-server), backend lockdown or HTTP 429 tuning (use api-gateway-backend-security-and-rate-limiting), Cloud Endpoints, Apigee, or GKE Gateway API.

- Shared by: google/skills
- Composes surfaces: 
- Tool chain: 
- Add to Invoked: https://invoked.ai/skills/api-gateway-openapi-spec-authoring

## Community usage

_Building — published once enough workspaces have run this skill._

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