The same API as OpenRouter at the provider's list price, with 0% platform fee and no subscription.
Stage
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Founded
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Based in
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Pricing model
Open source
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Pricing
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Prepaid credit from $5 USD (whole dollars), no platform fee. Own provider keys are free with no fee at any volume. First top-up bonus: $5 extra on a first top-up of $5 or more. Up to 20% bonus credit on top-ups through referrals (1% per person referred who pays $20+), posting about plaingateway, or
Key features
Single sign-on with OpenID Connect and two-factor authentication
Format translation through KPP canonical format, allowing any SDK to call any model
Spend and token budgets with hard limits that are never skipped
Complete request logging with status, tokens, cost, timing and content when permitted
Encrypted provider key storage with AES-256-GCM
Web console for managing organizations, projects, members, roles and request logs
Stateless Rust gateway for horizontal scaling
Support for 14 built-in AI providers
Docker Compose deployment with Caddy, PostgreSQL, Valkey and ClickHouse
Error reporting that names unsupported fields instead of silently dropping them
0% platform fee with no markup
Bring your own provider keys at no cost
Up to 20% bonus credit on top-ups
Referral program earning 10% for 12 months
Encrypted key storage
No data retention for requests
Compatible with coding agents and IDEs
First top-up bonus of $5
What makes it different
OpenID Connect single sign-on and two-factor authentication included in the open-source code, not an enterprise edition
Hard budgets with worst-case reserves for every request to prevent burst overruns
Single MIT-licensed repository for gateway, console, KPP and UI library with no separate enterprise version
Rust gateway architecture with no interpreter on the hot path for performance
Free when using your own provider keys with no fee at any volume
Transparent provider list pricing with no hidden costs
Kaeso
plaingateway