PERCIO MCP · WHAT LEAVES YOUR MACHINE
The MCP server never reads your repository or sends file contents. For localhost it opens one guarded tunnel to one origin, and closes it when the run ends.
YOUR MACHINE · STAYS HERE
WHAT CROSSES · THE WHOLE LIST
+ credentials, only if you type them
Stored encrypted, used by the runner in flight, wiped when the run ends. Never echoed back.
PERCIO · THE TUNNEL
WORKFLOWS
Plain words in your agent's chat. It drafts the test, you approve it, Percio runs it, and the findings come back to the same thread.
localhost:3000/sign-up
THE TOOLS
Eight tools, and not one of them drives a browser. Your agent picks the tool; you say what you want in plain words.
Nothing starts until you approve the wording. The launch must use exactly what you approved, or the server names the field that drifted.
Create an account as a first-time visitor
Rejected: not the wording you approved
0
confidence · medium
breakdown: every deduction
Pull-only progress and the result: score, confidence and the breakdown. It never blocks your agent.
Clinic receptionist, 50s
A guided chat builds a custom persona and saves it to your account, ready for the next run.
PROJECTS
PERSONAS
Your projects and saved personas, listed in the chat. The choice stays yours.
Bring last week's findings back into the chat by test id, and fix from there.
Clean markdown of a page, so your agent can shape the scenario without starting a run.
SETUP
One config entry, one key from your account, then ask. Nothing to install for localhost.
mcp.json
"percio": {
"command": "npx",
"args": ["-y", "@percio/mcp"],
"env": { "PERCIO_API_KEY": "prc_…" }
}01
Paste it in your client's MCP config (.cursor/mcp.json, .mcp.json or claude_desktop_config.json), then restart. Same release as Docker.
Integrations › Agent Integrations
Your API key
prc_••••••••••••••••
Shown once. Copy it into PERCIO_API_KEY now.
02
In the Percio app. Keys are personal and bound to one workspace, so every run is filed to whoever asked.
✓ list_personas · connected
Test the checkout as a first-time visitor
03
If your personas come back, you're connected. From here it's one sentence per test, and one credit per run.
PERSONAS
Every persona saved in your account is one sentence away. Need someone new? Describe them in the chat and create_persona builds them.
READING THE RESULT
Not how bad the pixel looked. Your agent relays the judgement as written, with the score's confidence next to it.
"Not scorable" is not a zero
A run with nothing grounded to score says so, and is never shown as 0.
Abandoned is not failed
An environment fault ends the run with no score, and the credit comes back.
FAQ
No. The repository is not read and no file contents are sent. What leaves is the URL, the mission, the stop condition, the scenario, the persona and project ids, and credentials only if you type them in the chat.
Percio sends AI personas through your product and surfaces real UX issues in minutes, not days.
No credit card required