Hyphen Gateway API

One key, every frontier model, one base URL.

The Hyphen gateway is an OpenAI-compatible LLM proxy. A single Hyphen key — sk-hy-… — authenticates every endpoint below. Create one at app.hyphen-solution.com (Dashboard → API Keys → Create).

Authentication

All requests use HTTP Bearer auth:

Code
Authorization: Bearer sk-hy-...

Models

The gateway serves four models. Pick one by tier:

Model	Use for
`m2.5`	Fast, cheap, high-volume calls
`m2.7`	Balanced default for most agent work
`m3`	Strongest reasoning / large refactors
`text`	Plain text completion

Three stable aliases also map onto these — hyphen-fast = m2.5, hyphen-sonnet = m2.7, hyphen-opus = m3 — and keep working as the mapping is upgraded.

Budgets & caps

Every key carries a monthly USD budget. When the budget is exhausted the gateway returns HTTP 429 with the reset date — there is no surprise overage. Credits can extend a key past its cap. See the 429 responses documented on each endpoint.