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openai.mm.family - OpenAI models over x402

□ No challenge detected

OpenAI-compatible chat completions for gpt-6.1-sol (OpenAI's newest model) and 25 more OpenAI models (gpt-6, gpt-5.x, gpt-4.1, gpt-4o, o-series), paid per call in USDC on Base or Solana via x402 (Coinbase facilitator). No account or API key. One endpoint per model plus one generic endpoint; Flex, Standard and Fast tiers; reasoning levels via model suffix; answers with no visible output are not charged. Live prices: https://openai.mm.family/x402/pricing

x402
Base
Solana
USDC
AI

Listed price: $0.001
Challenge detected: 6 of the last 10 checks
Median response: 329 ms
Last checked: 17 Oct, 08:59 UTC
In our index since: 2 Oct 2026

Endpoint

curl -i https://openai.mm.family/x402/v1/chat/completions
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

36 listed endpoints · on x402-list.com

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://openai.mm.family/x402/v1

GET/models/gpt-4o-mini/chat/completions$0.001
GET/models/gpt-5.2/chat/completions$0.001
GET/chat/completions$0.001
GET/models/gpt-5.4-nano/chat/completions$0.001
GET/models/gpt-5.6-terra-long/chat/completions$0.001
GET/models/gpt-5.4/chat/completions$0.001
GET/models/gpt-5.6-sol-long/chat/completions$0.001291
GET/models/gpt-4.1-mini/chat/completions$0.001
GET/models/gpt-5.6-sol/chat/completions$0.001024
GET/models/gpt-6.1-sol/chat/completions$0.001
GET/models/gpt-6-sol-long/chat/completions$0.001

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 11 of 36 listed endpoints. First endpoints

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/openai.mm.family

Recent checks

3 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026

All 10 checks

When (UTC)	Result	HTTP	Response
17 Oct, 08:59 UTC	No challenge detected		346ms
15 Oct, 23:42 UTC	No challenge detected		262ms
14 Oct, 17:17 UTC	No challenge detected		479ms
14 Oct, 00:19 UTC	No challenge detected		209ms
12 Oct, 00:34 UTC	Challenge detected	402	355ms
10 Oct, 10:04 UTC	Challenge detected	402	323ms
9 Oct, 06:42 UTC	Challenge detected	402	338ms
8 Oct, 03:32 UTC	Challenge detected	402	314ms
7 Oct, 00:45 UTC	Challenge detected	402	332ms
3 Oct, 05:05 UTC	Challenge detected	402	325ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 17 Oct, 08:59 UTC, we detected no payment challenge.

What price is recorded for openai.mm.family - OpenAI models over x402?

Its listed price is $0.001.

What payment terms does openai.mm.family - OpenAI models over x402 advertise?

The listing advertises x402, Base, Solana and USDC. Check the seller's current payment challenge and authentication requirements before paying.

Where is openai.mm.family - OpenAI models over x402 listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 2 Oct 2026.

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