OpenAI-style chat completion from DeepSeek-V4-Flash-0731. POST {messages: [{role, content}], max_tokens <= 1024}, messages up to 16,000 characters in total. Returns: an OpenAI-style chat completion from the model the service is named for (DeepSeek-V4-Flash-0731, Qwen3-32B or Llama-3.1-8B-Instruct): POST {messages: [{role, content}], max_tokens <= 1024}; returns the assistant message, the model, and its token usage. Messages up to 16,000 characters in total.

GET https://ari001.tailb4ac3a.ts.net/v1/ventures/x402_chain_reads_v1/chat_deepseek_v3_2. Same payment terms as that HTTP route. Call once with no payment. The result is the payment terms. Retry the same call with the signed payment at _meta["x402/payment"].