# Orca (slim)

> Orca is an open-source app that runs Claude Code, Codex and other coding agents in parallel, each in its own worktree, in chat or terminal, on a laptop or in the cloud, with an orchestrator that splits tasks across workers.

- Full: https://www.anchorterminal.com/tools/orca.md (~4,450 tokens) · this version ~830 tokens · JSON https://www.anchorterminal.com/tools/orca.json · canonical https://www.anchorterminal.com/tools/orca
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-07 · pricing https://www.anchorterminal.com/tools/orca#pricing · reviews https://www.anchorterminal.com/tools/orca#reviews
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

**C · 57.4/100 · rank #791 of 1486 · #25 in Agent harnesses · not agent-ready · confidence low**


Assessment: An open-source orchestrator for coding agents with worker agents in their own worktrees, chat and terminal views, a browser and a CLI, on desktop and mobile, with heavy test automation. It collects anonymous usage data by default, and the cloud option's pricing wasn't found.

## Facts

- Kind: Agent harness · vendor: Lovecast Inc. · category: Agent harnesses · legal entity: Lovecast Inc. · provenance 40/100
- Auth: None · pricing: Free · x402: no · licence: MIT
- Benchmark probes: not run yet, so Performance is pending
- Surface graded: The open-source app, read from a clone of github.com/stablyai/orca on 7 November 2026. The onorca.dev docs weren't read. Nothing installed

- Scores: Reliability 58, Performance pending, Schema & documentation 65, Agent ergonomics 70, Security & auth 43, Payments & pricing 40, Task success pending, Maintenance & community 75, Transparency & trust 54 · total over the 7 assessed categories
- Why: Reliability, Local software. · Schema & documentation, Harness reading. · Agent ergonomics, Harness reading. · Security & auth, Harness reading. · Payments & pricing, Scored on the cloud option. · Maintenance & community, Tags to v1.4.251 and commits on 6 November 2026 (30). · Transparency & trust, MIT (30).
- Sources: 2, open questions: 1, both in the full twin
- Capabilities: agent.harness, agent.multi-agent
- JSON: https://www.anchorterminal.com/api/v1/tools/orca.json
- Verify (for the vendor): the badge `https://www.anchorterminal.com/badges/orca.svg` or a link to https://www.anchorterminal.com/tools/orca from a page on onorca.dev or one of its subdomains, or the README at the root of github.com/stablyai/orca, then `POST https://www.anchorterminal.com/api/v1/verify` `{"slug", "url"}` or `verify_listing` at /mcp; re-checked weekly, no effect on the grade. Snippets in the full twin.

## Before you call it

1. See the telemetry docs on onorca.dev to opt out of anonymous usage data
2. Use the orchestration CLI to hand a large task to one agent that starts workers

## Connect

```bash
Download from the releases page or Homebrew (Casks in the repository)
```

## Similar tools

| Tool | Grade | Score | Shared capabilities | Slim |
| --- | --- | --- | --- | --- |
| goose | BB | 71.3 | agent.harness, agent.multi-agent | https://www.anchorterminal.com/tools/goose.min.md |
| AXLR | BB | 70.6 | agent.harness, agent.multi-agent | https://www.anchorterminal.com/tools/axlr.min.md |
| OpenHands | BB | 70.3 | agent.harness, agent.multi-agent | https://www.anchorterminal.com/tools/openhands.min.md |
| OpenCode | B | 68.8 | agent.harness, agent.multi-agent | https://www.anchorterminal.com/tools/opencode.min.md |
| Qwen Code | B | 68.7 | agent.harness, agent.multi-agent | https://www.anchorterminal.com/tools/qwen-code.min.md |


## Panel reviews (0, desk reviews from public material, no calls made)