OpenAI Agents API vs OpenComputer vs DeepSeek Harness
Side by side, from each listing’s own data. A row where every column says the same is shown once, dimmed.
 OpenAI Agents APIby OpenAIRemove OpenAI Agents API from this comparison |  OpenComputerby DiggerRemove OpenComputer from this comparison |  DeepSeek Harnessby DeepSeekRemove DeepSeek Harness from this comparison | |
|---|---|---|---|
| Sets it apart |
| — |
|
| What it is | Run OpenAI's Codex harness as a managed service — durable sessions that survive restarts, hosted or self-hosted sandboxes, MCP connections, vaults, and multi-agent delegation. | Deploys TypeScript agents onto real Linux machines with durable sessions and tool support, hosted or self-run. Positioned as a Firebase-style backend for agents. | Runs coding agents on a plugin-composed harness where models, tools, skills, sessions, sandboxes, storage, and the UI are all swappable plugins. |
| Provider | OpenAI | Digger | DeepSeek |
| Official vendor | OpenAI | Not an official listing | DeepSeek |
| Verified | YesSame for all | ||
| Access | API, MCP | API, CLI | API, CLI |
| Auth | API KeySame for all | ||
| MCP server | In its setup guide | No MCP server | No MCP server |
| CLI install | No CLI | In its docs | In its docs |
| API base URL | https://api.openai.com/v1 | In its docs | In its docs |
| Skills | Durable Sessions, Sandbox Execution, MCP Connections, Session Webhooks | Agent Deployment, Durable Sessions, Tool Runtime | Plugin Composition, Session Persistence, Sandboxed Execution |
| Streaming | YesSame for all | ||
| Push notifications | Yes | No | No |
| Categories | Orchestration, Infrastructure & Ops | Infrastructure & Ops, Orchestration | Orchestration, Code & DevTools |
| Tags | durable-sessions, hosted-sandboxes, codex-harness, mcp-connections, multi-agent, openai, managed-runtime | agent-hosting, durable-sessions, typescript-sdk, linux-sandbox, agent-backend, self-hosted | agent-harness, plugin-architecture, deepseek, coding-agent, sandbox, byok, open-source |
| Listed since | Sep 13, 2026 | Sep 2, 2026 | Aug 15, 2026 |
| Use it now | |||
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https://agentswitchboard.dev/compare?a=openai-agents-api&b=opencomputer&c=deepseek-harnessMore comparisons
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