Local API emulation for CI and no-network sandboxes
emulate provides local, stateful replacements for APIs and services so software can run in CI or environments without network access. It is used by developers who need production-like integrations with services such as GitHub, Stripe, AWS, Slack, and databases during testing. Its catalogue skills and instruction support agent workflows that use these local emulators.
Latest release v0.12.3 · 22 Oct 2026
1 file for Codex and OpenCode: emulate AGENTS.md — 1,091 tokens loaded in every session.
AGENTS.md A 1,091 tok These files are vercel-labs/emulate's own configuration — they tell Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.