# Asterionyx

> Managed prepaid AI API access for builders. One API key, one Base URL, a live Model Catalog, and prepaid Points.

Asterionyx is an OpenAI-compatible API layer for customers who want predictable prepaid access without managing private routes. Customers see only Asterionyx vocabulary: Points, an Asterionyx API key, the Asterionyx Base URL, and published Asterionyx model IDs.

## Agent guidance

- Discover current model IDs from `https://api.a.eus/api/v1/public/models`; static files are not an availability list.
- Do not infer or expose internal gateway, provider, routing, or raw model details.
- API usage requires a customer account and API key from the customer portal.
- Billing is prepaid. Recharge orders are confirmed manually by an admin before Points are added.
- Current commerce flow is not autonomous checkout; see `/.well-known/agent-commerce.json`.
- WebMCP tools, when available, are public read-only helpers for guidance, model aliases, and API catalog metadata only.

## Core pages

- [Home](https://asterionyx.com/index.md): product summary, Base URL, model aliases, and Points overview.
- [Pricing](https://asterionyx.com/pricing/index.md): prepaid Points and recharge flow.
- [Models](https://asterionyx.com/models/index.md): live catalog discovery and public-ID guidance.
- [Docs](https://asterionyx.com/docs/index.md): API quickstart and client setup.
- [FAQ](https://asterionyx.com/faq/index.md): common account, key, Points, and model questions.
- [Blog](https://asterionyx.com/blog/index.md): practical guides and product thinking.
- [Changelog](https://asterionyx.com/changelog/index.md): product releases and improvements.

## Discovery

- [Full LLM guide](https://asterionyx.com/llms-full.txt)
- [Agent readiness manifest](https://asterionyx.com/.well-known/agent-ready.json)
- [Agent protocol readiness matrix](https://asterionyx.com/.well-known/agent-protocols.json)
- [API catalog](https://asterionyx.com/.well-known/api-catalog.json)
- [Customer API OpenAPI](https://asterionyx.com/.well-known/openapi.json)
- [Agent skills](https://asterionyx.com/.well-known/agent-skills.json)
- [Commerce status](https://asterionyx.com/.well-known/agent-commerce.json)
- Commerce protocol status: [x402](https://asterionyx.com/.well-known/commerce/x402.json), [MPP](https://asterionyx.com/.well-known/commerce/mpp.json), [UCP](https://asterionyx.com/.well-known/commerce/ucp.json), [ACP](https://asterionyx.com/.well-known/commerce/acp.json)
- [MCP server card](https://asterionyx.com/.well-known/mcp.json)
- [MCP runtime status](https://asterionyx.com/.well-known/mcp/runtime-status.json)
- [WebMCP tool status](https://asterionyx.com/.well-known/webmcp.json)
- [OAuth protected resource metadata](https://asterionyx.com/.well-known/oauth-protected-resource)
- [OAuth status](https://asterionyx.com/.well-known/oauth-status.json)

## Public API summary

- Customer API Base URL: `https://api.a.eus/v1`
- Staging Customer API Base URL: `https://api.staging.asterionyx.com/v1`
- Authentication: `Authorization: Bearer <Asterionyx API key>`
- OpenAPI: `https://asterionyx.com/.well-known/openapi.json`
- OAuth status: `https://asterionyx.com/.well-known/oauth-status.json` (OAuth authorization server not currently supported)
- MCP runtime endpoint: source-ready in the backend and verified on private staging; not advertised for production use until `https://api.a.eus/mcp` and production API TLS are verified. See `https://asterionyx.com/.well-known/mcp/runtime-status.json`.
- Live Model Catalog: `https://api.a.eus/api/v1/public/models`

## Optional

- [Terms](https://asterionyx.com/terms)
- [Privacy](https://asterionyx.com/privacy)
- [Imprint](https://asterionyx.com/imprint)