Human-in-the-loop for AI agents

The imprimatur for your AI agents.

Watchers watch the world. The approval inbox holds your agent's hands until a human says yes — then it executes. Nothing ships without a signature.

Self-host in 5 minutes MCP + REST Open-core, MIT
reddit.comment act_9f3c…
Reply: constant loan-option calls
blocking wont do much here since they spoof a new number every time, but the call screening you found is exactly the right tool for this…
Pending review
Reject Approve
The loop

Sense the world. Propose. Get a human yes. Then act.

Impri never executes anything itself. It holds the queue and the signatures — your agent does the work, once a person approves.

01

Watch

Watchers poll RSS, Reddit and page changes, score the signal and drop the noise.

02

Propose

Your agent POSTs an action with a preview — a draft reply, an email, a publish.

03

Approve

A human approves, rejects or edits the draft — from the web inbox or their phone.

04

Execute

The decision returns via webhook or polling. Your agent executes — never before.

Why Impri

Built as a safety layer, not a bot.

Human-in-the-loop by design

Fail-closed: on any doubt, don't execute. Edit-before-approve with a signed diff. A decision is immutable and audited.

Agent-first API

MCP tools and a curl-friendly REST API. Idempotent, versioned, with clear failure states. Quickstart in five lines.

Open-core, self-hostable

Run the full core for free with docker compose up and SQLite. No license, no data hostage, full export.

Fair pricing

A free tier you can actually use, no card. Paid tiers cheaper than the hour they save you each month. Security features on every tier.

Five lines

Push an action.
Wait for the human.

One POST puts a draft in the inbox. Your agent polls (or gets a webhook) and only acts on the decision — approved, rejected, or edited. Same flow from an MCP tool.

How to add human approval →
agent — bash

      
Pricing

Start free. Self-host free. Pay only for the hosted comfort.

Free
$0
  • 1 project, 3 watchers
  • 100 approvals / month
  • No card required
Most popular
Indie
$9 / mo
  • 10 projects, 20 watchers
  • 2,000 approvals / month
  • Push notifications
Team
$29 / mo
  • Everything in Indie
  • 5 members, roles
  • Audit export, 1yr history
Self-host
$0
  • Full core, MIT
  • Inbox + watchers + MCP
  • No feature paywall

HMAC-signed webhooks and audit logs are on every tier — security is never a paid add-on.

Give your agent hands — and a conscience.

Self-host in five minutes, or wire the MCP server into your agent today.

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