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AI API Marketplace — How to Read Pricing Cards & Buy API Keys

How to use the APIMaster.ai AI API marketplace — read pricing cards, compare input/output costs vs official pricing, understand savings percentages, and buy OpenAI, Claude, or DeepSeek API keys.

Marketplace & verification

The marketplace groups channels under each model so you can compare price and trust signals.

Card fields

  • Channel id — Backend label (e.g. 02, 03) for display and history only; not the API model parameter.
  • IN / OUT — USD per million input / output tokens.
  • Save XX% — Approximate discount vs official reference pricing.
  • Fingerprint history — Recent detection runs (older → newer, left to right).
  • Status — Whether the channel is enabled upstream.

Fingerprinting

APIMaster runs periodic black-box probes on some channels. Bars reflect TrustScore-style layers.

Run your own check anytime on APIMaster.ai.

Workflow

  1. Open the model tab (e.g. Sonnet 4.6).
  2. Compare price and history bars.
  3. Create a key in the console; call with model id claude-sonnet-4-6 — no channel id in the request.
  4. If something breaks, check marketplace status then FAQ.