WebArena

Self-hostable realistic web environment (e-commerce, forums, GitLab, CMS) for building and benchmarking autonomous web agents.

Connects to: Docker, Playwright, OpenAI · Python · Apache-2.0 1,500★

Use it with an AI agent

Loadbay is an MCP server, so an agent can search the catalog and find this harness:

claude mcp add --transport http loadbay https://loadbay.xyz/api/mcp

• Source: https://github.com/web-arena-x/webarena
• This harness as JSON: /api/harnesses/webarena
• Agent setup: /setup.md
• Browse all 370+ harnesses on Loadbay