Caprock vs eryx
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Caprock compared with eryx
| Detail | 
Caprock | 
eryx |
|---|
| What it does | The ledger of every coding agent you run
| WebAssembly sandbox for running untrusted Python safely
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| Stage | Startup
| Not given
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| Founded | 2026
| Not given
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| Based in | US
| Not given
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| Pricing model | Not given
| Open source
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| Pricing | Free Community Edition with 83 features. Premium: $30 per year or $100 once. Teams in your VPC: $6,000 per year or $1,000 per month plus $500 setup.
| Not given
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| Key features | - Track who is waiting on you and who is stuck across agents
- Live plan limits for Claude and Codex
- Cost per pull request and repository at API list price
- Run Claude Code, Codex, OpenCode and Gemini CLI in terminal tabs
- Follow branches from agent to pull request, CI, merge and release
- Loop alerts when a session calls the same tool five times in three minutes
- Search session history after Claude Code deletes transcripts
- Pair phone by QR code for access from anywhere
- Auto-pause sessions at daily budget limit (Premium)
- Run tasks unattended with automatic verification
| - Full CPython 3.14 with standard library
- Async callbacks from sandboxed code
- No filesystem or network unless allowed
- Fast startup in 1–5 milliseconds
- Embed from Python, JavaScript or Rust
- MCP server support
- gRPC server deployment
- Hosted execution over HTTP and WebSocket
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| What makes it different | - Works with multiple agents on the same machine in one unified ledger
- Prices agent work at API list price with cost per pull request and repository
- Team version runs in your VPC with one flat price for all machines
| - Full CPython 3.14 running in WebAssembly
- Async callbacks between sandbox and host
- Extremely fast sandbox startup
- Works as MCP server for AI agents
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| Free plan | Not given
| Not given
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| Open source | Not given
| Not given
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| Platforms | Not given
| Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 12 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 21 | 6 |
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| Referring domains (Majestic) | 14 | 2 |
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3 details filled in for both companies.
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