List Models
OpenAI Models API compatible endpoint. Returns Opper LLM and embedding models in OpenAI’s models.list shape so tools that point an OpenAI-compatible base URL at /v3/compat (gateways, n8n, LangChain, etc.) can discover the live catalogue without hardcoding model IDs. Each entry additionally carries OpenRouter-shaped pricing (USD per token) and context_length, plus an opper compliance summary (region, country, zdr, gdpr_residency, verification) so sync scripts can filter on residency/ZDR criteria in one call; full data-handling detail lives on /v3/models?include=route. Featured models first, then ID-ascending; no pagination, matching OpenAI.