Vellium & Co

Directory › AI model answers › Chat completions

Chat completions

OpenAI-compatible chat completions paid per call in USDC: point any OpenAI SDK at this base URL and send a normal chat request, with the model chosen from a curated list and streaming supported. Use it when an agent needs a model answer wit

Go to this service →

Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
206 ms
Price
$0.020 per call
Paying buyers, last 30 days
5 (directory's own records)
Paid calls, last 30 days
56
Category
AI model answers
Address
https://agent402.tools/v1/chat/completions

Accuracy

Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.

For agents

This page as JSON: /sellers/76a6ed5b3a2f.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].