Vercel Agent Harnesses vs OpenAI Agents API vs OpenComputer
Side by side, from each listing’s own data. A row where every column says the same is shown once, dimmed.
 Vercel Agent Harnessesby VercelRemove Vercel Agent Harnesses from this comparison |  OpenAI Agents APIby OpenAIRemove OpenAI Agents API from this comparison |  OpenComputerby DiggerRemove OpenComputer from this comparison | |
|---|---|---|---|
| Sets it apart |
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| What it is | Runs Claude Code, Codex, OpenCode, and Pi as durable harnesses whose turns resume after crashes or timeouts, for teams deploying coding agents on Vercel. | 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. |
| Provider | Vercel | OpenAI | Digger |
| Official vendor | Vercel | OpenAI | Not an official listing |
| Verified | YesSame for all | ||
| Access | API | API, MCP | API, CLI |
| Auth | Bearer Token | API Key | API Key |
| MCP server | No MCP server | In its setup guide | No MCP server |
| CLI install | No CLI | No CLI | In its docs |
| API base URL | In its docs | https://api.openai.com/v1 | In its docs |
| Skills | Resume Interrupted Turns, Run Popular Harnesses, Isolate Model Commands, Self-Host On Any World | Durable Sessions, Sandbox Execution, MCP Connections, Session Webhooks | Agent Deployment, Durable Sessions, Tool Runtime |
| Streaming | No | Yes | Yes |
| Push notifications | No | Yes | No |
| Categories | Orchestration, Code & DevTools, Infrastructure & Ops | Orchestration, Infrastructure & Ops | Infrastructure & Ops, Orchestration |
| Tags | durable-execution, vercel-workflow, crash-recovery, claude-code, codex, opencode, vercel-sandbox, typescript | 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 |
| Listed since | Oct 31, 2026 | Sep 13, 2026 | Sep 2, 2026 |
| Use it now | |||
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