Google API Gateway API

Name: API Gateway API
Brand: API Gateway API
Availability: InStock

✓ Official Vendor SpecCloud InfrastructureNetworkingoauth215 EndpointsREST

Install Jentic One Beta

Connect the API Gateway API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the API Gateway API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.

Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.

Step 1: Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register       # connects your agent to your Jentic One instance

Jentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.

Capabilities

What an agent can do with API Gateway API.

Create and update API resources that group related ApiConfigs

Upload an OpenAPI spec as an ApiConfig with auth and quota policy

Deploy a Gateway that routes traffic to a specific ApiConfig

GET STARTED

Start building with API Gateway API

Explore with Jentic

View OpenAPI Document

For Agents

Provision and manage Google Cloud API Gateway resources to front Cloud Run, Functions, and App Engine backends. Useful for agents that need to expose internal services as authenticated, rate-limited public APIs.

Use for: Create a new API and upload an OpenAPI spec as a config, Deploy a gateway that routes to my Cloud Run service, Update an existing API config to a new spec version, Grant a service account invoke permission on a gateway

Not supported: Does not handle backend service hosting, full enterprise API management, or runtime traffic processing - use for control-plane management of Google Cloud API Gateway resources only.

Use Cases

Patterns agents use API Gateway API for, with concrete tasks.

★ Expose Cloud Run services as a managed public API

Teams running services on Cloud Run or Cloud Functions front them with API Gateway to add API key auth, JWT validation, and quota enforcement without writing middleware. The agent uploads an OpenAPI spec as an ApiConfig and deploys a Gateway that becomes the public entry point for the backend.

Create API 'orders-api', upload openapi.yaml as config 'v1', then create a gateway 'orders-prod' bound to that config in us-central1.

Versioned API rollouts

Engineering ships new contract versions by uploading a new ApiConfig and pointing the Gateway at it. Because the Gateway resource is independently mutable, switching versions is a single update call, and a rollback is the inverse update - no DNS or load-balancer change required.

Patch gateway projects/p/locations/us-central1/gateways/orders-prod to reference apiConfig v2 and poll the returned operation until done.

IAM-locked partner APIs

When the gateway should only accept calls from specific partner service accounts, IAM bindings on the gateway resource restrict who can invoke it. The setIamPolicy and getIamPolicy endpoints on the gateway resource make this auditable through Terraform or scripts.

Set IAM policy on the orders-prod gateway granting roles/apigateway.invoker to serviceAccount:partner@example.iam.gserviceaccount.com.

AI agent gateway operations through Jentic

An infra-focused AI agent rolls out new API versions by reading a Pull Request that updates the OpenAPI spec, uploading the new ApiConfig, swapping the gateway, and reporting success. Through Jentic the agent uses search-load-execute and never holds the project's service account JSON.

Read openapi.yaml from the PR diff, create config 'v3', update gateway orders-prod to reference it, and post the new gateway URL into the PR.

Key Endpoints

15 endpoints — the google cloud api gateway api lets developers create and manage gateways, api configs, and apis that front backend services running on cloud run, cloud functions, or app engine.

METHOD

PATH

DESCRIPTION

GET

/v1/{+parent}/apis

List APIs in a project

GET

/v1/{+parent}/configs

List API configs under an API

GET

/v1/{+parent}/gateways

List gateways in a location

GET

/v1/{+resource}:getIamPolicy

Get IAM policy on a gateway, API, or config

GET

/v1/{+name}/locations

List supported locations

DELETE

/v1/{+name}

Delete an API, config, or gateway

GET

/v1/{+parent}/apis

List APIs in a project

GET

/v1/{+parent}/configs

List API configs under an API

GET

/v1/{+parent}/gateways

List gateways in a location

GET

/v1/{+resource}:getIamPolicy

Get IAM policy on a gateway, API, or config

GET

/v1/{+name}/locations

List supported locations

Why Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Your Google Cloud OAuth credential is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.

Intent-based discovery

Agents search Jentic by intent such as 'deploy an API gateway' or 'upload an OpenAPI config', and Jentic returns the matching API Gateway operation with its input schema so the agent calls the right endpoint without the gcloud CLI or the full Cloud reference.

Time to first call

FAQs

Specific to using API Gateway API through Jentic.

What authentication does the Google API Gateway API use?

OAuth 2.0 with Google Cloud credentials (service account or user). Through Jentic the credentials are vaulted and exchanged for short-lived scoped access tokens at call time.

Can I deploy a new gateway version without downtime?

Yes. Upload a new ApiConfig under the same API resource, then patch the gateway to reference the new config. Traffic shifts at the platform level once the operation completes, so there is no DNS change required.

What are the rate limits for the Google API Gateway API?

Control-plane operations (create, update, list) follow the standard Google Cloud per-project per-minute quotas. Data-plane traffic through the deployed gateway has its own quotas configured per ApiConfig and is independent of this control-plane API.

How do I deploy a gateway through Jentic?

Search Jentic for 'create google API gateway', load the schema for the gateways.create operation under /v1/{+parent}/gateways, and execute it with parent project and location plus the apiConfig reference. Poll the returned operation until done.

Is the Google API Gateway API free?

Control-plane calls are free. Data-plane traffic through deployed gateways is billed per million requests, separately from this management API.

What is the relationship between API, ApiConfig, and Gateway?

An API is the logical grouping; an ApiConfig is a versioned OpenAPI spec plus policy; a Gateway is the deployed endpoint that points at one ApiConfig. Updating the gateway to a different config switches traffic without recreating resources.

Can I limit what my agent is allowed to do with the Google API Gateway API?

Yes. Because this API carries the resource name in the URL path, such as /v1/{parent}/gateways and /v1/{name}, your self-hosted Jentic One instance lets you write rules that pin the agent to one project or location, so it can list and manage APIs, configs, and gateways there and nothing else. You decide which operations the agent may call, so destructive ones like deleting a gateway or config are excluded unless you explicitly add them. Your own rules, not the agent, decide which operations and which Google Cloud OAuth credential are in scope at call time.