apache / casbin-gateway

What it does

• Is the API behind that key what it was sold as?. a reseller can quietly swap in a cheaper model or fake a cache hit, and none of it shows up in the traffic. Authenticity asks the upstream directly and grades it A–F.
• Switch every agent's provider from one place. change an API key or base URL once, and every agent pointed at Gateway picks it up.
• Keep going when a provider runs out. a key out of credit, a rate limit or a relay that is down moves the request on to the next provider, across vendors and APIs, and model routing rules decide which model each request is actually sent and
• Pool several subscriptions. hold several Claude, ChatGPT or Copilot accounts, start each conversation on the plan whose quota resets soonest, keep it there while its prompt cache lasts, see what every plan has left, and start a 5-hour wind
• Add a provider, an MCP server, a prompt or a skill from a link — click a vendor's "add this" button on the web and Gateway opens with what the link carries, before any of it is written.