Protocol guide
OpenAI-compatible vs Anthropic Messages APIs
Compare request shapes, base URLs, streaming events, tool calls, and the client choices that determine which protocol to use.
ScaleMax guides
Practical notes for building and using AI API integrations.
These guides explain the protocol, billing, and reliability details that tend to cause real client failures. Each guide links to the exact ScaleMax documentation needed to configure or verify the behavior.
Billing guide
Pay as you go vs token packs
Understand what each billing mode measures, how cache tokens are counted, and which base URL belongs to each key.
7 minute readRead guide: Pay as you go vs token packs
Reliability guide
Stop retries from multiplying AI token usage
See how client and gateway retries combine, where idempotency belongs, and why a stream must never be retried after visible output.
India guide
Pay for the Claude API from India with UPI
Why the Anthropic API needs a US-dollar card, how to buy Claude API access in rupees with UPI instead, and how to point Claude Code and the SDK at it.
Setup guide
Use Claude Opus in Cursor without a US card
Add Claude Opus to Cursor as a custom OpenAI-compatible model on a key paid in rupees: the three fields, the model ID, and what Cursor still runs itself.
Protocol guide
OpenAI-compatible base URLs, explained
What a base URL is, how SDKs append the endpoint path, the double-/v1 and missing-/v1 mistakes, and where each coding tool keeps the setting.
7 minute readRead guide: OpenAI-compatible base URLs, explained