Zivv Blog

What an AI API gateway is and how it works: request routing, protocol translation, data security and compliance questions, plus a selection checklist.

Claude Pro/Max subscription or API pay-as-you-go? Compare billing, usage windows, team fit, and how a gateway's Claude MAX group combines both approaches.

Install and configure Claude Code on Windows: npm install steps, PowerShell environment variables for a gateway, WSL notes, and common error fixes.

Fix 402 insufficient balance and quota exhausted errors: tell account balance, key quota, and budget caps apart, top up, and add preflight checks.

Fix 529 overloaded_error, request timeouts, and dropped streams in AI APIs with correct retries, timeout settings, stream recovery, and task splitting.

Set up Cline in VS Code with a custom gateway: OpenAI-compatible and Anthropic provider settings, model IDs, curl checks, and context cost control.

Fix 403 Forbidden and permission_denied errors in AI APIs by checking API key permissions, model group access, region blocks, and organization policies.

Configure Cursor with a custom OpenAI-compatible API: exact base URL format, key setup, model ID matching, curl checks, and fixes for common errors.

Diagnose and fix 429 Too Many Requests in AI APIs: tell RPM, TPM, concurrency, and quota limits apart, and add exponential backoff that actually works.

A step-by-step 401 Unauthorized checklist for AI APIs: key format, Bearer headers, endpoint differences, stale client config, and leaked-key response.

Fix 404 and model_not_found errors in OpenAI-compatible tools: check /v1 base URLs, exact model IDs, key group access, and stale client model entries.

Configure Cherry Studio with Zivv's OpenAI-compatible API: the exact endpoint, key setup, model IDs, connection testing, and 401 and 404 fixes.

How AI API token billing really works: input vs output pricing, prompt cache rates, long-context spend, and monthly budget estimates from real usage.

Why Claude Code hits rate limits faster than chat, how to confirm it, and a step-by-step Zivv setup that keeps long agent sessions stable.

Step-by-step Codex setup on an OpenAI-compatible gateway: base URL and key config, model selection, curl verification, team keys, and fixes.

A low-risk migration playbook for OpenAI SDK projects: audit config, switch baseURL, map model names, verify errors, roll out, validate cost.

Where Gemini long context pays off, where tokens get wasted, and a read-once reuse-often pattern with gateway setup, code, and budget caps.

A practical playbook for team API key management: key structure, budget layers, weekly usage reviews, and an incident process for spend spikes.

A practical multi-model routing guide: classify tasks, set defaults for Claude, GPT, and Gemini, add escalation rules, and control costs.

Official APIs, Zivv, and third-party relays compared across pricing, rate limits, protocols, team features, and support — and how to choose.

Set up Claude Code and Codex with Zivv in about three minutes: environment variables, key creation, verification, and fixes for common errors.

A five-layer playbook for cutting AI API spend: gateway pricing, model routing, prompt optimization, caching and batching, and team budget controls.