Now in Early Access

Sign to Approve.
Not Click.

Cryptographic approval workflows for AI agents. From solo devs to enterprise teams — Ed25519 signatures replace insecure button clicks. Tamper-proof. Auditable.

Request Early Access → View on GitHub

FlowKey — Live Approval Demo

🤖

AI Agent

📋

Request

🔑

Sign

✅

Execute

⚡ Refund Request

⏳ Pending

Amount
$50,000.00

Customer
Acme Corp

Reason
Service issue

Approver
finance-lead

ed25519:kP9x2mR7vQ4nL8wJ3yT6bA5cF1hG0dS...

✓ Signature verified — Approved by finance-lead

⚡ How it Works

Three Steps. Cryptographic Proof.

Replace insecure button clicks with Ed25519 signatures. Every approval is cryptographically signed and tamper-proof.

Define Your Flow

Write approval workflows in TypeScript. Define steps, approvers, and conditions with a simple DSL. Version control friendly.

Sign to Approve

Approvers receive notifications via Telegram, Slack, or email. They approve by signing with their Ed25519 private key — not clicking a button.

Execute & Audit

Once signed, the action executes automatically. Every approval is logged with the signature, timestamp, and approver identity. Tamper-proof.

👀 See it in Action

Built for Real Workflows

From Telegram notifications to dashboard management — FlowKey integrates where your team already works.

🔑

FlowKey Bot

bot

🔔 New Approval Request

Type: Refund
Amount: $50,000.00
Customer: Acme Corp
Reason: Service issue

Approval ID: apv_7kX9mR2n
Requested by: AI Agent (support-bot)

✓ Approve & Sign

✗ Reject

23:42

Approval Dashboard

3 Pending

⚡ Refund — Acme Corp

finance-lead

$50,000

✓ Approved

🚀 Deploy — v2.4.1 prod

devops-admin

—

⏳ Pending

🔐 Data Export — EU users

compliance-officer

2.4 GB

⏳ Pending

💳 Payment — Vendor Q3

cfo

$128,500

✗ Rejected

TypeScript

import { FlowKey } from '@flowkey/core'

const flow = new FlowKey()

// Define a refund approval workflow
const refund = flow.define({
  name: 'refund-approval',
  steps: [{
    action: 'approve',
    approver: 'finance-lead',
    notify: ['telegram', 'email'],
    timeout: '24h'
  }]
})

// AI Agent triggers the flow
const result = await refund.run({
  amount: 50000,
  customer: 'Acme Corp',
  reason: 'Service issue'
})
// result.signature → Ed25519 proof
          

🎯 Use Cases

From Solo Devs to Enterprise Teams

Whether you're an indie hacker or running a 50-person team — your AI agents need guardrails.

Your AI handles 90% of the work.
But the critical 10% — money, data, public actions — needs your sign-off.

💰

Financial Operations

AI manages your portfolio, subscriptions, expenses — but executes trades or payments only after you sign.

AI → "Buy $2,000 NVDA"
→ You sign via Telegram
→ Trade executes

Pain: "My AI bought the wrong stock"

📧

Outbound Communications

AI drafts emails, tweets, messages — but nothing goes out until you review and sign.

AI → "Send cold email to 50 leads"
→ You review & sign
→ Emails sent

Pain: "My AI sent an embarrassing email"

🗄️

Data & File Operations

AI organizes your cloud storage, cleans up data — but destructive actions need your approval.

AI → "Delete 500 old backups (12GB)"
→ You confirm & sign
→ Cleanup runs

Pain: "My AI deleted important files"

It's not just "approve or reject".
It's who approved it, when, and can you prove it in an audit.

💳

Financial Approval Chains

AI processes refunds and payments. But amounts over $1K need manager sign-off. Over $10K? CFO co-signs.

AI → "Refund $50K to Acme Corp"
→ Manager signs → CFO co-signs
→ Refund API executes

Pain: "Who authorized this refund?"

🔐

Data Access & Compliance

AI handles customer queries. But exporting PII or bulk data requires DBA + Security team dual-sign.

AI → "Export 10K user records"
→ DBA signs → Security signs
→ Export runs with audit trail

Pain: "We can't prove who accessed the data"

🚀

Infrastructure Changes

DevOps AI auto-scales and deploys. But production changes need CTO approval with cryptographic proof.

AI → "Scale to 20 instances ($3K/mo)"
→ CTO signs via Slack
→ AWS API executes

Pain: "Unauthorized prod change at 3am"

⚡ Features

Built for AI Agents

Everything you need to add human-in-the-loop approvals to your AI workflows.

🔐

Cryptographic Signatures

Ed25519 signatures replace button clicks. Every approval is cryptographically signed and verifiable.

⚡

Code-First DSL

Define workflows in TypeScript. Version control friendly. No XML, no drag-and-drop.

🔔

Multi-Channel Notify

Telegram, Slack, Email, Webhook. Notify approvers wherever they are.

🔗

One-Time Links

Secure, single-use approval URLs. Sign in-browser without exposing private keys.

📊

Full Audit Trail

Every approval logged with signature, timestamp, and approver identity. Tamper-proof.

🚀

Self-Hosted

Open source core. Run on your infrastructure. Full control over your data.

🔍 Why FlowKey?

The Problem is Real

AI agents are powerful — but without guardrails, one wrong action can cost you everything.

👤

Without FlowKey

Solo devs & teams face the same risk

AI sends wrong email to your client
AI executes a bad trade at 3am
No one knows who approved the $50K refund
Audit fails — no cryptographic proof
"It wasn't me" — no way to verify
One click away from disaster

🔑

With FlowKey

Every critical action is signed & verified

You review & sign before AI sends
Phone buzzes — you approve or reject
Ed25519 signature proves who approved
Tamper-proof audit trail for compliance
Multi-sig for high-stakes team decisions
Cryptographic proof, not just a button click

💰 Pricing

Start Free. Scale as You Grow.

Open source core. Self-hosted or managed. Pay only for what you need.

Individual

$29/month

For solo developers & indie hackers

100 approvals/month
1 user (you)
Telegram + Email notifications
Ed25519 key signing
Full audit trail
Community support

Team

$99/month

For startups & growing teams

1,000 approvals/month
Up to 10 users
Slack + Telegram + Email
Multi-signature workflows
Role-based permissions
Priority support
SSO (coming soon)

Enterprise

Custom

For large organizations

Unlimited approvals
Unlimited users
Self-hosted or managed
Custom integrations
SLA & dedicated support
Compliance assistance
On-premise deployment

✓ All plans include open source core · ✓ Self-hosted option available · ✓ Free for early adopters

Sign to Approve.
Not Click.

Three Steps. Cryptographic Proof.

Define Your Flow

Sign to Approve

Execute & Audit

Built for Real Workflows

From Solo Devs to Enterprise Teams

Financial Operations

Outbound Communications

Data & File Operations

Financial Approval Chains

Data Access & Compliance

Infrastructure Changes

Built for AI Agents

Cryptographic Signatures

Code-First DSL

Multi-Channel Notify

One-Time Links

Full Audit Trail

Self-Hosted

The Problem is Real

Without FlowKey

With FlowKey

Start Free. Scale as You Grow.

Join the Waitlist

Ready to Build?

Sign to Approve.Not Click.

Three Steps. Cryptographic Proof.

Define Your Flow

Sign to Approve

Execute & Audit

Built for Real Workflows

From Solo Devs to Enterprise Teams

Financial Operations

Outbound Communications

Data & File Operations

Financial Approval Chains

Data Access & Compliance

Infrastructure Changes

Built for AI Agents

Cryptographic Signatures

Code-First DSL

Multi-Channel Notify

One-Time Links

Full Audit Trail

Self-Hosted

The Problem is Real

Without FlowKey

With FlowKey

Start Free. Scale as You Grow.

Join the Waitlist

Ready to Build?

Sign to Approve.
Not Click.