9 related posts
This topic page groups 9 posts around Claude API, with coverage across Access and integration, Pricing and quotas and Fixes, so you can jump straight to the right article for the task.
Fix Claude Code `API Error: 400 due to tool use concurrency issues` by rewinding corrupted tool history or correcting Anthropic `tool_result` ordering before changing keys, quota, or providers.
Compare current LLM API prices across major providers with official rows, router-fee caveats, workload rules, and a reusable monthly cost worksheet.
Claude usage credits let paid users continue after plan limits, but they bill separately at standard API rates unless a bundle discount applies. Compare Pro, Max, Claude Code, and API billing before you keep working.
Compare Claude Opus 4.7 and Sonnet 4.6 by current role, price, access, workload fit, and a same-workflow test before changing your default model.
Fix Claude API connection errors by separating returned API errors from reachability failures, then checking status, proxy, VPN, firewall, DNS, TLS, SDK timeouts, Claude Code, and gateways safely.
A route-first Claude API 529 runbook: check status, separate overloaded_error from 429, retry with capped jitter, reduce pressure, and escalate with request_id evidence.
Fix Claude `API Error: Rate limit reached` by checking Claude Code status, API keys, model context, Console limits, provider route, headers, and Claude Status before retrying.
Complete Claude Opus 4.5 pricing breakdown: $5/$25 per million tokens, 90% savings with prompt caching, 50% batch discounts. Includes real cost calculators, competitor comparisons, and optimization strategies for developers and businesses.
Fix Claude exceeded quota errors with 8 proven solutions. Covers 429/529 errors, API rate limits, subscription tiers, and production-ready code examples.
