Opsalis Documentation
Everything you need to sell or use APIs on the marketplace.
What is Opsalis?
Opsalis is a peer-to-peer API marketplace where API owners and API consumers connect directly. There is no central server — Opsalis has no servers of any kind, anywhere.
The Opsalis control center is a Docker container that you install for free on your own hardware, under your sole supervision. Nobody else has access to it — not even Opsalis. Your control center connects directly to every other Opsalis user's control center. All communication goes through the blockchain, which means Opsalis itself has zero infrastructure, zero servers, and zero access to your data.
Opsalis is powered by a proprietary protocol built on blockchain and smart contract technology. This means payments are automatic, trustless, and instant — no invoices, no payment terms, no chargebacks.
The result: you own everything. Your API keys, your wallet, your data, your earnings. Opsalis is just the protocol that connects you with other developers.
How it works
- Install the control center on your machine (Docker, one command)
- Log in to the web console and create your account
- Browse the API catalog or register your own API to sell
- Call any API — your control center talks directly to the owner's control center, peer to peer
True peer-to-peer. When you call an API, your control center communicates directly with the API owner's control center. No middleman, no central server, no one can see your requests or responses. Everything is encrypted end-to-end between peers.
Two roles, one software
| Role | What you do | Cost |
|---|---|---|
| Consumer | Call APIs, pay per use | API price + small fee |
| Owner | Publish APIs, earn USDC | 5% commission per call |
You can be both at the same time. One control center, both roles.
Key features
- Pay per call — no subscriptions, no tiers
- USDC payments — stable, predictable pricing
- Any protocol — REST, GraphQL, gRPC, SOAP, JSON-RPC, XML-RPC
- Auto-generated SDKs in TypeScript, Python, Go, Rust, Kotlin
- Demo mode — try any API free before paying
- Non-custodial — your funds stay in your wallet, always
Next steps
Ready to start?
- Quick Start — get up and running in minutes
- Register an API — start earning USDC
- Browse APIs — find APIs to use