Shared API keys lose accountability quickly
One shared key is easy to configure, but it hides which project, user, device, or script generated the cost. It also makes a runaway loop or failed retry sequence difficult to stop without interrupting the whole team.
Split keys by project, member, device, or tool. A local coding assistant, an image demo, and an internal reporting script should not rely on the same permanent credential.
Make test keys small, temporary, and revocable
Many unexpected charges originate during testing: loops, repeated authentication failures, oversized image requests, or several clients running at once. Test credentials should have a limited budget and should be disabled after the experiment.
Never place a real key in screenshots, public repositories, shared documents, or chat transcripts. Store it only in the intended client or server environment.
Measure completed-work cost instead of unit price alone
Token price matters, but total cost also depends on context length, image generation, failed retries, batch size, and how many clients share a key. A cheaper model can become expensive when a script calls it repeatedly.
Review model price, endpoint support, group access, success rate, and actual request pattern together. Use the current model marketplace rather than an old pricing screenshot.
Combine status checks with usage review
When requests fail, check the public channel status before changing local configuration or retrying a large job. Then inspect the model name, endpoint type, key permissions, balance, and the client's effective Base URL.
Build a weekly habit around usage logs: identify the highest-cost key, project, model, time window, and failure pattern. If the team cannot answer those questions, cost control is still based on guesswork.