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Find what's broken before your users do.

Synthetic users that navigate your product, identifying friction, violating heuristics, and delivering structured UX reports.

Learn moreRequest a demo
Continuous testingConnect to your agent via MCP
AccessibleStarts at $19/month
TrustedHelping teams worldwide
How it works

Continuous usability signal, built into how you ship.

  • Step 01 — PersonasLive

AI personas, Real reactions!

Spin up personas tailored to your product, send them through your flows, and read every reaction in minutes, not weeks.

Learn more

Independent research

85%

of 1,052 real people's own survey answers reproduced by generative agents

Park et al. · Stanford University & Google DeepMind, 2024

no recruitingno no-showsno bias

Same issues, found side by side

Top findings from a checkout flow · human panel vs. synthetic users

FindingHumanSynthetic
Filter labels are unclear
Low-contrast checkout CTA
Vague error states
Onboarding is too long
Nav depth too deep
18 / 19 issues matchedSee the full parity study →
Where personas come from

A persona is compiled, not imagined.

Each synthetic user is assembled from research you already own — and from the attributes that decide how a person actually behaves. More evidence in, sharper lens out.

user interviews·24
support tickets·1,204
session replays·310
product analytics·90d
app store reviews·2.8k
NPS verbatims·640
Goals
Frustrations
Context
Digital literacy
Age
Device
Signals absorbed0 / 18Ø 96 → 520
MCP

Any agent. One tool call.

Whatever you build with — Claude Code, Cursor, Copilot — it can run a Percio test without leaving the editor.

Claude Code · Cursor · Copilot · Codex · GitHub · Linear — anything that speaks MCP

In your editor

Ask your agent to test it.

claude — percio mcp · live
Running
>
percio-mcpconnectedOpus 4.6

You ask, in plain English.

“Test the checkout flow.” Your agent turns it into a Percio run.

Personas explore it for real.

Each one reacts in its own words — not a checklist.

The fix happens in the thread.

The report lands back in context, so your agent patches before you merge.

Build your own testing loops.

Percio is just a tool your agent calls — so you decide what to test, which personas, and what 'done' means. Describe a loop once, in plain English, and your agent runs it your way.

Describe a loop for your agent…
⏎ run
Saved loops — yours, in plain English2 saved
On every PRSign-up change as first-timer, rerun as power user, compare
Before a releaseRe-run last sprint's failing scenarios, report shipped Quick Wins
Custom personasYour scenariosPass criteriaAny URL, even localhost

Easily connect with
your AI agents

Connect Percio to any AI agent or MCP client in minutes.

Quick config

MCP. Connect any MCP-compatible client.

{
  "mcpServers": {
    "percio": {
      "command": "npx",
      "args": ["-y", "@percio/mcp"],
      "env": {
        "PERCIO_API_KEY": "$API_KEY"
      }
    }
  }
}
One paste

Skill. A contract your agents already understand.

SKILL.mdView
Paste into your AI agent's context

# Paste SKILL.md into your agent's system prompt

claude · cursor · windsurf — same file, same rules


✓ Aligns the MCP contract across every host

Plans

Compare plans and choose monthly or annual billing at checkout.

Free

Try Percio with no commitment.

$0
  • 20 free credits for 14 days
  • 30-day test history
  • Up to 3 AI personas

No card required. Credits don't renew.

Get Started

Indie

For individuals shipping every week.

$19
per month
  • 35 credits/month
  • 90-day test history
  • Up to 5 AI personas
  • Credits refresh each billing period
Start with Indie

Pro

More volume and history for active teams.

$35
per month

Everything from Indie, plus:

  • 70 credits/month
  • 365-day test history
  • Up to 10 AI personas
  • Credits refresh each billing period
Start with Pro

Secure payments via Stripe.

FAQ

Your guide to
continuous testing.

No, and we'll be the first to say it. Percio is a complement to real user research, not a substitute. It gives you fast, continuous signal between moderated sessions.

Start testing today

Ship with confidence,
not guesses.

Percio sends AI personas through your product and surfaces real UX issues in minutes, not days.

Start for freeView pricing

No credit card required