AI gateways
Bifrost and Opper are listed as AI gateways. Hopscotch is one API for many models. Navige sits between agents and the models they pay for and routes calls to cut spend. 4 tools, in the order they appear in the directory. This is not a ranking.
Navige
Sits between AI agents and the models they pay for to cut spend via caching, smart routing, context trimming and loop guards.
Bifrost
Open-source (Apache-2.0) AI gateway from Maxim AI: one OpenAI-compatible API for thousands of models with failover, load balancing, semantic caching, virtual keys, budgets and an MCP gateway; Enterprise plan available.
Opper
EU-hosted AI gateway: 700+ models behind one OpenAI-compatible API, pay-as-you-go, with spend caps, model allowlists and zero data retention; works with Claude Code, OpenCode and Cursor.
Hopscotch
One API for 500+ models from Anthropic, OpenAI, Google and more, with spend limits per key, teammate and workspace, guardrails, fallbacks, request logs and bring-your-own-key; pay as you go at list price.
Each listing.
The directory page, alternatives in the same category, and a head-to-head where we have one.
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