Cylink API · CyanixLabs

Routing, not a wrapper

ARI reads each request before anything is generated and decides how it should be handled — answered directly, grounded with a live search, or handed to a tool. You send one request; the gateway picks the cheapest path that still gets a good answer, and tells you which one it picked.

ARI routing

Per-request, with a confidence score.

Execution traces

What ran, in what order, and what it cost.

Show-once keys

Copy it at creation or not at all.

Usage and latency

Tokens, cost estimates, p50 and p95.

Endpoints

Endpoint	Shape	Use it for
/cylink-api	OpenAI-compatible chat completions	Anything an existing client already speaks. Cheapest per call.
/axion	Grounded — returns `sources`, `citations`, `images`, `trace_events`, `cost_usd`	Answers that have to be checkable. This is what Cyanix uses.
/usage	JSON	Tokens, calls and cost for your key.
/status	JSON	Gateway and model availability.

Drop-in · OpenAI-compatible

const res = await fetch("https://cylinkdev.vercel.app/api/cylink-api", {
  method: "POST",
  headers: {
    "Authorization": "Bearer cyk_your_key_here",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    model: "cyanix-vista",
    messages: [{ role: "user", content: "Who won, and where did you read it?" }]
  })
});

Grounded · sources come back with the answer

const res = await fetch("https://cylinkdev.vercel.app/api/axion", {
  method: "POST",
  headers: {
    "Authorization": "Bearer cyk_your_key_here",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({ query: "What changed in the EU AI Act this month?" })
});

const { response, sources, citations, trace_events, cost_usd } = await res.json();

Models

Four names, picked by what you are asking for rather than by parameter count.

Model	For
cyanix-quick	Short, cheap turns. Classification, follow-ups, anything high-volume.
cyanix-vista	The balanced default — what the Cyanix app sends for a normal turn.
cyanix-apex	Multi-step reasoning and code.
cyanix-core	The base path, when you want the model and nothing around it.

The console

Playground. Test a prompt against any model before wiring it into anything.
Keys. Generated through a show-once modal and prefixed cyk_, so a key in a log is obvious.
Usage. Calls, tokens, latency and cost estimates per key.
Installable. A PWA with an update-available prompt, so the console is never running stale code.

On multi-tenancy: before this opened publicly we audited row-level security across the whole backing project and fixed a case where permissive world-readable policies were stacked on top of correctly scoped ones. Every table that serves API traffic is scoped per user.

What’s planned

In progress

Pricing and rate-limit tiers

Early access is free while the shape of real usage is still being learned. Tiers land before that changes.

In progress

Expanded documentation

Full reference for /axion, including the trace format and every field in a citation.

Planned

Streaming on the grounded endpoint

Sources first, then the answer as it is written — the order that makes a grounded answer readable while it arrives.