Krosyn

Krosyn is a middleware platform for building data connectors between your applications and external APIs. Built for developers and IT teams who want the power of Zapier without the price tag.

Each connector follows a three-step pipeline:

• Trigger: evaluates a condition against the incoming request to decide whether to run
• Process: optionally calls an external API to enrich or look up data, and transforms fields with expressions
• Perform: builds a request and sends it to a target API (POST, PUT, PATCH, DELETE)

Everything is configured in the web UI. No code required.

Features:

• Expression language with 55+ built-in functions for strings, math, dates, arrays, and conditionals
• Secrets Vault for API keys and credentials, encrypted at rest with AES-256-CBC and automatically redacted from event logs
• Dedicated endpoints per connector with bearer token, secret token, HMAC-SHA256 signature verification, origin whitelisting, and optional token expiry
• Retry with exponential backoff and circuit breaker protection
• Full event history with request/response details, timing, and one-click retry
• Role-based access control, team roles, and audit logging
• Social login / SSO via Google, Microsoft, GitHub, Apple, and LinkedIn (Business plan)
• Optional TOTP-based two-factor authentication

Security and compliance:

• Passwords hashed with bcrypt; API tokens, OAuth tokens, and secrets encrypted at rest (AES-256-CBC)
• TLS for all data in transit, CSRF protection, SameSite cookies, server-side sessions
• Webhook payload data is processed solely on customer instructions - never used for Krosyn analytics or training
• Infrastructure hosted in the EU (Hetzner, Germany) with no webhook payload persistence beyond pipeline execution
• GDPR compliant with a standard DPA available
• Chmura Software is registered in the Netherlands (KVK 90392000)

Pricing is simple and transparent. Free tier includes 2 connectors and 500 events/month. Paid plans start at $24/mo (Starter, 10k events) and scale to $99/mo (Business, 40 connectors, 100k events) - the same workload costs $400+/month on Zapier.

No credit card required to start.