Auth & Billing

gpt88.cc uses Bearer token authentication. Pricing, rate limits, and quota numbers are managed dynamically in the console.

Authentication

All requests use Authorization: Bearer <API_KEY>. Treat the key as a production secret.

HTTP headers

http

Authorization: Bearer $GPT88_API_KEY
Content-Type: application/json
X-Gpt88-User: usr_abc123
Idempotency-Key: 9c4a52a4-2fdd-4b49-9e72-1a7b7b4e3a01

Key security

Use keys only on the server side.
Do not commit secrets into source control.
Rotate keys by creating a new key first, deploying it, then revoking the old one.

Billing model

Important: group multipliers determine the deduction

A multiplier is the RMB amount deducted from your balance for each $1 of official API usage. Actual deduction (RMB) = official usage (USD) x the selected group multiplier.

A 2.0 group multiplier deducts RMB 2.0 for $1 of official usage.
A 0.5 group multiplier deducts RMB 0.5 for $1 of official usage.
A lower multiplier means a lower unit cost.

Group multipliers are shown in the group selector on the API Keys page. Groups may use different upstream routes and have different stability characteristics, so choose the group that fits your needs.

For model and price discovery, browse the Model Square and the website pricing page. The currently available models, group multiplier, and final deduction for your account still follow the live console.

Top-ups are 1:1: RMB 1 topped up = 1.00 balance. If the page shows a $ symbol, the actual unit is still RMB.

gpt88.cc uses RMB balance and official usage multiplied by the selected group multiplier. Pricing and group settings are controlled dynamically in the console.

If USD pricing or a $ symbol is confusing, read the RMB Balance & USD Top-Up Billing Guide for the difference between payment currency, account balance, and official usage.

Top-up 1 RMB = 1 RMB in account balance.
Actual deduction = official usage in USD x the selected group multiplier.
Lower group multipliers reduce the cost per unit of usage.
Pricing and quota values are read from the console and may change with upstream vendors.