OPEN SOURCE Created by Netlify

Stop guessing if agents
can use your service

Think Lighthouse, but for agent experience. AXIS — the Agent Experience Index Score — is open source tooling and a scoring framework to measure how well your APIs, services, and project structure work for AI agents.

1
INSTALL $ npm i -g @netlify/axis
2
SET UP $ axis init
3
RUN $ axis run
TEST YOUR API · MCP · CLI WITH 20+ CODING AGENTS
Agent Experience Index Score

Four dimensions, one score.

A single pass/fail tells you nothing about why an agent struggled. AXIS scores four independent dimensions so you can focus on what matters: a slow API, a confusing layout, a noisy tool, or the agent's own decisions.

40%
Goal achievement

Did the agent actually finish the task? Scored against your rubric checks by an LLM judge.

20%
Environment

Shell, filesystem, build tools. Measure whether your project structure and dev workflow trip agents up.

20%
Service

APIs, MCP tools, third-party services. Tells you whether your endpoints are actually usable by an agent.

20%
Agent

Planning, tool selection, self-organization. Captures the quality of the agent's own decisions.

.axis/reports/sample/report.html
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Fits in your workflow

Score it. Baseline it. Gate CI on it.

AXIS is built to slot into the same place as your unit tests, just for agent experience. Run it locally to iterate, then turn on baselines and let your CI catch regressions automatically.

1
Define a scenario

A JSON file with a prompt, a rubric, and optional setup steps. A minimal scenario is five lines.

2
Run any agent

23 built-in agents including Claude Code, Codex, Gemini, Cursor, Copilot, and more. Not listed? Register any agent via the custom agent API.

3
Set a baseline

Snapshot a passing run, commit the baseline, and any future regression beyond noise tolerance fails the build.

Founding contributors

Built with teams already building for agents.

AXIS was created by Netlify and is being developed in the open. These are the founding contributors — the first teams to run it, publish their results, and help shape the standard.

Ship for humans and
the agents they use

AXIS is open source and free.
You can wire it into your project in just a few minutes.