Public API documentation
Codus Nullus Wholesale Voice API
The wholesale voice API powers number provisioning, voice termination, and AI-dialer
orchestration for Codus Nullus customers. It is a Hono-on-Workers surface served from https://api.c0.lt/v1. We ship a stable OpenAPI 3.1 spec at /openapi.json and keep these docs in sync on every release.
Our team built this API to let other operators (resellers, integrators, in-house IT) consume
Codus Nullus voice infrastructure programmatically. It speaks JSON, returns RFC 7807
problem-details on error, accepts bearer JWTs for auth, and requires an Idempotency-Key header for every mutating money / provisioning request.
The intended audience is engineers integrating the platform into their own systems. If you are a human looking to manage a single account, the customer portal at portal.c0.lt probably wants you instead.
To get started: create an account via the portal or contact our team at [email protected] to get a sandbox tenant. Then read the Auth flow and browse the Endpoint reference.
Quick links
Endpoint reference
Browse the full surface, try requests in-page, copy curl + JS snippets.
Auth flow
Sign-up, magic link, bearer tokens, refresh rotation, Idempotency-Key.
Error codes
RFC 7807 problem-details registry with HTTP statuses and common fixes.
Changelog
What changed and when. Breaking changes are called out at the top.