HarnessesCoding agent

OpenCode

Open-source coding agent for terminal, desktop and IDE that works with 75+ model providers.

Maker
Anomaly (formerly SST; repo anomalyco/opencode)
Kind
coding agent
Interface
CLI, desktop, IDE
Open source
Open source · Licence: MIT · GitHub
GitHub stars
214,864 (GitHub API, 2026-10-17)
Models
75+ providers via Models.dev incl. local models; GitHub Copilot and ChatGPT Plus/Pro logins; Zen curated models · Bring your own model
Pricing
—
MCP support
Yes
Subagents
Yes
Headless / scripted mode
Yes
Sandboxing
—
Note
Homepage says free models included; Zen pricing not read. Multi-session parallel agents stated on homepage.
Official site
https://opencode.ai
Sources
opencode.ai · api.github.com/repos/sst/opencode · api.github.com/repos/anomalyco/opencode · opencode.ai/docs/mcp-servers/ · opencode.ai/docs/agents/ · opencode.ai/docs/cli/ (docs checked 2026-10-17)
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Every value comes from the official site or docs, or from the GitHub API, on the date shown. A blank (—) means the value isn't stated or wasn't verified. It never means 'no'. Pricing is copied from official pages and changes often. No affiliate links.