Synap
One OpenAI-compatible API for open-weight models, free tier, no card
About Synap
Synap โ one OpenAI-compatible API for open-weight models (Qwen3 Coder, gpt-oss-20b, Gemma 4, Qwen3-VL and more) at cost-level prices, e.g. gpt-oss-20b $0.017/$0.085 per 1M tokens. Change base URL and key in any OpenAI SDK. Free tier: 100K tokens/day on Qwen3 Coder 30B, no card. Zero data retention by default. Pay by card or with USDC over x402 (no account needed โ the paying wallet is the account). Base URL https://synap402.com/v1. Docs https://synap402.com/docs. Models and prices https://synap402.com/models.

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