Pay per token · no minimums

The Excession API.

The model behind the Excession agent, for your own tools and pipelines. Drop-in for OpenAI Chat Completions, OpenAI Responses and Anthropic Messages, with one key and one balance.

Input
$0.80/ 1M tokens
Cache read
$0.15/ 1M tokens
Output
$1.60/ 1M tokens
curl https://api.excessionlabs.ai/v1/chat/completions \
  -H "Authorization: Bearer $EXCESSION_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "excession-1",
    "messages": [{"role": "user",
      "content": "Review this nginx config for SSRF paths."}]
  }'

What you get

Three wire formats

/v1/chat/completions, /v1/responses and /v1/messages. Use the SDK you already have.

Streaming and tool calls

Server-sent events, parallel tool calls, JSON output and images, in every format.

1M-token context

Whole repositories, long captures and large disassembly in one request.

Tuned for security work

The same model the Excession agent runs on, for recon, audit, exploit development and analysis.

Exact cost per request

Every response carries a request id and its cost. Per-request history in your dashboard.

One balance

The API and the agent share one key system and one credit balance. Plans and top-ups cover both.

Same access check as the agent.

Verify your email, add a card for a $0 check, and accept the Acceptable Use Policy. Most people are approved on the spot.