The inference plane. OpenAI format under /v1, drop-in compatibility for the major client formats, and authentication with sk-atlas- virtual keys.
Data plane API
The appliance exposes a single HTTP server (port 8080 in the default deploy). The data plane never stops, whatever the license state.
Authentication: virtual keys
Virtual keys carry the sk-atlas- prefix. The gateway reads them from these places:
Header x-atlasberg-vk: value accepted verbatim.
Authorization: Bearer <value>, only when the value has the sk-atlas- prefix.
Headers x-api-key, x-goog-api-key and api-key, only with the sk-atlas- prefix, so a provider API key is never confused with a virtual key.
Personal tokens from device login (prefix atu-) are accepted in the same places: Authorization: Bearer, x-api-key, api-key and x-goog-api-key. The gateway resolves the person and their team, injects the team's live virtual key in x-atlasberg-vk and removes the token from the headers before the request goes on. The team key never leaves the gateway.
Governance requires the key when auth enforcement on inference is on; the refusal message names the header.
BYOK per request: with admin opt-in, the header x-atlasberg-direct-key: true makes the gateway use the credential in the client's own Authorization header as a direct provider key.
Tutorial: sign in from the terminal with SSO
How a developer obtains a personal atu- token with one command and one code confirmed in the portal.
Tutorial: connect Claude Code, Cursor and SDKs
The base URL and key variables each tool reads to send its requests through the gateway.
Anthropic: POST /v1/messages, /v1/messages/count_tokens and /v1/messages/batches. An Anthropic client points its base URL at the gateway without changing the body format.
OpenAI drop-in: the /openai prefix, for example /openai/v1/chat/completions, /openai/chat/completions, /openai/models, /openai/files, /openai/batches, /openai/realtime.
Google GenAI: the /genai prefix.
LiteLLM: the /litellm prefix, aggregating the OpenAI, Anthropic, GenAI and Bedrock formats.
Passthrough: the /openai_passthrough, /anthropic_passthrough and /genai_passthrough prefixes.
Unauthenticated flood: An inference request without a servable credential is refused with 401 at the door and aggregated into one auth.refused_burst event per origin, instead of writing two trail events per call.
GET /health: the healthy response carries "status":"ok" plus a components block.
GET /metrics: Prometheus scrape. The full metric list is on the Protocol page.
About Atlasberg Platform
Atlasberg Platform is the control layer between a company and every AI model: each request is authenticated with a virtual key, filtered by policy and DLP, routed to the right provider and written to a hash-chained audit trail. It exposes an OpenAI-compatible API, so applications only swap the base URL.
The same artifact runs in Atlasberg Cloud, in your VPC, on-premises or fully air-gapped, and is priced by capacity and modules, never per seat.
This page is part of the official documentation. To talk to the engineering team, write to [email protected] or use https://atlasberg.com/contato. Answers come within one business day.
Agents: this page is also available as Markdown at /docs/api.md, or by requesting this URL with the header Accept: text/markdown. Index of everything: /llms.txt.