Google Workflow Executions API

Name: Workflow Executions API
Brand: Workflow Executions API
Availability: InStock

✓ Official Vendor SpecCloud InfrastructureServerlessoauth29 Endpoints

Install Jentic One Beta

Connect the Workflow Executions API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Workflow Executions 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 Workflow Executions API.

Trigger a workflow execution with a JSON arguments payload

List executions for a workflow with state filters such as ACTIVE, SUCCEEDED, or FAILED

Cancel a running execution mid-flight

GET STARTED

Start building with Workflow Executions API

Explore with Jentic

View OpenAPI Document

For Agents

Trigger Cloud Workflows executions, watch step entries, cancel runs, and read final results. Runtime control plane for serverless orchestrations defined in the Workflows API.

Use for: Trigger a workflow execution with a JSON payload, List all failed executions for a workflow in the last 24 hours, Cancel an active workflow execution by name, Retrieve step entries for a specific execution

Not supported: Does not handle workflow definition authoring, container image building, message brokering, or scheduling - use for runtime control of Cloud Workflows executions only.

Use Cases

Patterns agents use Workflow Executions API for, with concrete tasks.

★ Event-driven serverless orchestration

Run a multi-step workflow in response to an event such as a file upload or a Pub/Sub message. The Workflow Executions API exposes triggerPubsubExecution so a workflow can be wired directly to a Pub/Sub topic without an intermediate Cloud Function. Execution state can be polled or watched through stepEntries to drive downstream UI updates.

POST to /v1/{+workflow}:triggerPubsubExecution with a Pub/Sub message envelope and return the resulting execution name.

Synchronous workflow invocation from a backend

A backend service triggers a workflow with POST /v1/{+parent}/executions, polls the execution by name until state is SUCCEEDED, then reads the result field for the structured output. This pattern replaces ad-hoc step functions or hand-coded retry loops with a declarative workflow definition. The stepEntries endpoint provides observability that an opaque function call cannot.

Create an execution under parent projects/{project}/locations/{loc}/workflows/{workflow} with argument payload {"orderId":"abc"}, poll until state=SUCCEEDED, and return the result field.

Operational debugging and audit

When a workflow fails, the stepEntries endpoint exposes input, output, exception, and routine name for every step, giving engineers a precise replay of execution flow. Combined with deleteExecutionHistory and exportData, teams can keep recent runs queryable while archiving older execution traces. This is essential for SRE postmortems and compliance auditing.

List stepEntries under a failed execution, find the step where exception is non-empty, and return its routine and exception fields.

Agent-driven workflow control through Jentic

Operations agents can launch, monitor, and cancel Cloud Workflows runs through Jentic without engineers writing client glue. The agent searches Jentic for trigger a cloud workflow, loads the executions create operation, and executes with the JSON arguments built from a user request. State changes can be polled through the same client.

Through Jentic, create an execution on a named workflow with arguments derived from the user's request, then poll the execution until state is SUCCEEDED or FAILED.

Key Endpoints

9 endpoints — the google workflow executions api runs workflows defined in google cloud workflows and exposes the lifecycle of each execution.

METHOD

PATH

DESCRIPTION

POST

/v1/{+parent}/executions

Create a new workflow execution

GET

/v1/{+name}

Get execution details

POST

/v1/{+name}:cancel

Cancel an active execution

GET

/v1/{+parent}/stepEntries

List step entries for an execution

POST

/v1/{+workflow}:triggerPubsubExecution

Trigger an execution from a Pub/Sub message

POST

/v1/{+name}:exportData

Export historical execution data

POST

/v1/{+parent}/executions

Create a new workflow execution

GET

/v1/{+name}

Get execution details

POST

/v1/{+name}:cancel

Cancel an active execution

GET

/v1/{+parent}/stepEntries

List step entries for an execution

POST

/v1/{+workflow}:triggerPubsubExecution

Trigger an execution from a Pub/Sub message

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. Its client secret and refresh token never enter the agent's prompt, logs, or context.

Intent-based discovery

Agents search Jentic by intent such as 'trigger a workflow run' or 'list execution step entries', and Jentic returns the executions create or step entries operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

Time to first call

FAQs

Specific to using Workflow Executions API through Jentic.

What authentication does the Workflow Executions API use?

It uses OAuth 2.0 (Oauth2 and Oauth2c schemes) scoped to https://www.googleapis.com/auth/cloud-platform. Through Jentic the OAuth credentials are stored encrypted and exchanged for access tokens at execution; the agent runtime never holds the refresh token.

Where do I define the workflow itself?

Workflow definitions are managed by the separate Workflows API. Workflow Executions only handles run-time concerns: creating, listing, getting, cancelling executions and reading stepEntries. The execution endpoints reference workflows by their fully qualified name like projects/{project}/locations/{loc}/workflows/{workflow}.

What are the rate limits for the Workflow Executions API?

Per-project quotas for execution creation and concurrent active executions are configured in the Cloud Console under APIs and Services. The published default is enough for most workloads; teams running thousands of concurrent runs request a quota increase. Step throughput within a single execution is governed separately by the Workflows runtime.

How do I trigger a workflow execution through Jentic?

Search Jentic for trigger a cloud workflow, load the schema for POST /v1/{+parent}/executions, and execute it with the parent set to the workflow name and an argument JSON payload. Jentic returns the execution name; poll GET /v1/{+name} until state is SUCCEEDED or FAILED.

Can I trigger workflows from Pub/Sub directly?

Yes. POST /v1/{+workflow}:triggerPubsubExecution accepts a Pub/Sub envelope and starts an execution without needing an intermediary Cloud Function. Configure your Pub/Sub subscription to push to this endpoint for fully serverless event-driven workflows.

Can I limit what my agent is allowed to do with the Workflow Executions API?

Yes. Because you run Jentic One yourself, your own rules decide which operations and credentials the agent may use. The Workflow Executions API puts the execution and workflow in the URL path, so a rule can pin the agent to a single workflow or execution, letting it create and inspect runs there and nothing else. You pick the operations it may call, so cancelling a run through /v1/{name}:cancel is off limits unless you explicitly grant it.

Google Workflow Executions API

Connect the Workflow Executions API to your agent

Capabilities

Start building with Workflow Executions API

Use Cases

Key Endpoints

Why Jentic?

Related APIs

FAQs