# Opus Docs > Welcome to the Opus Developer Hub, where you can learn more about building on the Opus platform. ## Docs - [Introduction](https://developer.opus.com/api-reference/introduction.md): Programmatically initiate, execute, and monitor workflows with the Opus Job Operator API - [Execute Job](https://developer.opus.com/api-reference/jobs/execute-job.md): Run a workflow with populated inputs - [Get Job Execution Results](https://developer.opus.com/api-reference/jobs/get-job-results.md): Retrieve the output and results of a completed job - [Get Job Execution Status](https://developer.opus.com/api-reference/jobs/get-job-status.md): Check the current status of a job execution - [Get Upload URL](https://developer.opus.com/api-reference/jobs/get-upload-url.md): Generate a presigned URL for uploading files to use as job inputs - [Get Workflow Details](https://developer.opus.com/api-reference/jobs/get-workflow-details.md): Retrieve the complete schema and input requirements for a workflow - [Initiate Job](https://developer.opus.com/api-reference/jobs/initiate-job.md): Create a new job instance and receive a jobExecutionId - [Job Audit Log](https://developer.opus.com/api-reference/jobs/job-audit-log.md): Retrieve a detailed, timestamped log of all actions during job execution - [Postman Collection](https://developer.opus.com/api-reference/jobs/postman-collection.md): Pre-built API request templates to get started quickly - [Upload File](https://developer.opus.com/api-reference/jobs/upload-file.md): Upload your file to the presigned URL from Get Upload URL - [API Quickstart](https://developer.opus.com/api-reference/quickstart.md): Get started with the Opus Job Operator API - [Builder](https://developer.opus.com/guides/builder.md): The visual workflow interface for designing, configuring, and testing automation workflows in Opus. - [Jobs](https://developer.opus.com/guides/jobs.md): Learn how to run workflows and track results in Opus. - [Manhours](https://developer.opus.com/guides/manhours.md): Understand how Opus measures and bills usage through Manhours. - [Organization](https://developer.opus.com/guides/organization.md): Manage your company's Opus account, billing, team members, and settings. - [Workflows](https://developer.opus.com/guides/workflows.md): Learn how to build, manage, and run automated workflows in Opus. - [Workspace](https://developer.opus.com/guides/workspace.md): Team spaces where your workflows, jobs, and collaboration happen in Opus. - [Introduction](https://developer.opus.com/index.md): Design, execute, and govern AI-powered workflows at enterprise scale. - [Integrations Marketplace](https://developer.opus.com/integrations/overview.md): Connect Opus workflows with 3,500+ external services and 36,000+ actions. - [Opus Docs MCP Server](https://developer.opus.com/mcp-setup.md): Connect Opus documentation to AI-powered development tools using the Model Context Protocol. - [Opus Quickstart](https://developer.opus.com/quickstart.md): Create and execute your first Opus workflow in under 5 minutes. - [Release Notes](https://developer.opus.com/release-notes.md): Stay up to date with the latest Opus platform updates and improvements. - [Custom Agent](https://developer.opus.com/tasks/agent/custom-agent.md): Direct control over LLM selection, prompting, and output configuration for advanced AI tasks. - [Decision Agent](https://developer.opus.com/tasks/agent/decision-agent.md): Automatically route your workflow down different paths based on conditions you define. - [Human Decision Agent](https://developer.opus.com/tasks/agent/human-decision-agent.md): Pause your workflow for a person to make a routing decision when human judgment is needed. - [Opus Agent](https://developer.opus.com/tasks/agent/opus-agent.md): The default AI workhorse for LLM-based reasoning, extraction, and generation with typed inputs and outputs. - [Opus Code](https://developer.opus.com/tasks/agent/opus-code.md): Write custom Python code when you need logic that other tasks can't handle. - [Opus Human Task](https://developer.opus.com/tasks/agent/opus-human-task.md): Pause your automation to collect information from a real person when you need human input to continue. - [Export Data](https://developer.opus.com/tasks/data/export-data.md): Send files and data from your workflow to external services. - [External Service](https://developer.opus.com/tasks/data/external-service.md): Connect to any REST API. - [Import Data](https://developer.opus.com/tasks/data/import-data.md): Pull files and data from external services into your workflow. - [Integrations Task](https://developer.opus.com/tasks/data/integrations.md): Use pre-configured integrations from the marketplace in your workflows. - [Opus Text Extraction](https://developer.opus.com/tasks/data/opus-text-extraction.md): Extract text from documents and images so your workflow can process them. - [Execute Workflow](https://developer.opus.com/tasks/execute-workflow.md): Run another workflow inside your workflow to reuse logic and keep things organized. - [Review Task](https://developer.opus.com/tasks/review.md): Add quality checks to your workflow using human reviewers or AI validation. ## OpenAPI Specs - [openapi](https://developer.opus.com/api-reference/openapi.json)