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Temporal Workflows API

Start, describe, list, count, and read the history of workflow executions.

Temporal Workflows API is one of 8 APIs that Temporal publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Workflows. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 7 operations across 7 paths, and defines 9 schemas. It is described by OpenAPI 3.0.3, at version 1.0.

Requests are made against 2 base URLs: https://{namespace}.{account}.tmprl.cloud/api/v1, http://localhost:7243/api/v1.

7 operations 7 paths 9 schemas 6 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
1.0
Base URL
https://docs.temporal.io/references/api-reference
Authentication
HTTP Bearer
License
Resource Areas
1

Authentication & Security 1

Temporal Workflows API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). By default, every request must be authenticated.

  • bearerAuth — Bearer API key. On Temporal Cloud, pass an API key as Authorization: Bearer . Self-hosted deployments may use mTLS instead. Requests are scoped to the namespac…

Paths & Operations 7

Across 7 paths, the API surfaces 7 operations — 6 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Workflows 7

Start, describe, list, count, and read the history of workflow executions.

POST
/namespaces/{namespace}/workflows/{workflow_id}
Start a workflow execution
startWorkflowExecution 2 params body → 200401429
GET
/namespaces/{namespace}/workflows/{execution.workflow_id}
Describe a workflow execution
describeWorkflowExecution 3 params → 200401404
GET
/namespaces/{namespace}/workflows
List workflow executions
listWorkflowExecutions 4 params → 200401
GET
/namespaces/{namespace}/workflow-count
Count workflow executions
countWorkflowExecutions 2 params → 200401
GET
/namespaces/{namespace}/archived-workflows
List archived workflow executions
listArchivedWorkflowExecutions 4 params → 200401
GET
/namespaces/{namespace}/workflows/{execution.workflow_id}/history
Get workflow execution history
getWorkflowExecutionHistory 4 params → 200401404
GET
/namespaces/{namespace}/workflows/{execution.workflow_id}/history-reverse
Get workflow execution history (reverse)
getWorkflowExecutionHistoryReverse 4 params → 200401

Schemas 9

The contract defines 9 schemas that model the data the API accepts and returns. The most detailed are StartWorkflowExecutionRequest (10 properties), Status (3 properties), GetWorkflowExecutionHistoryResponse (3 properties), ListWorkflowExecutionsResponse (2 properties). Each schema is shown below with its type and property counts.

DescribeWorkflowExecutionResponse
object
2 properties
WorkflowType
object
1 property
StartWorkflowExecutionRequest
object
10 properties
Status
object
A google.rpc.Status-style error payload.
3 properties
GetWorkflowExecutionHistoryResponse
object
3 properties
StartWorkflowExecutionResponse
object
1 property
TaskQueue
object
2 properties
ListWorkflowExecutionsResponse
object
2 properties
Payloads
object
Temporal payloads envelope. Each payload carries base64-encoded metadata and data.
1 property

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

temporal-io-workflows-api-openapi.yml Raw ↑

Other APIs Temporal publishes across the network.

Temporal Operator Service API
Temporal Cloud Operations API
Temporal Nexus API
Temporal Cluster API
Temporal Namespaces API
Temporal Workflow Lifecycle API
Temporal Workflow Messaging API