Sato Hub

x402 · merchants

openai.mm.family

Base · payout 0xa91238cf312440118f7dd59ba78232acdb8ea39b

Answers HTTP 402

unknown. We hold no reading for this seller's endpoints.

no reading date

Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.

144 x402-style payments from 3 distinct payers, $0.27 USDC in the last 7 days (Base, exact read)

window ended 2026-10-05

Payments
144
Outside payers
3
USDC
0.27

This window shows the pattern of machine noise (few payers, dust amounts), so it does not count toward the evidence ranking.

All USDC received at this payout address: $3.27 (includes payments that are not x402)

Method: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.

Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-05, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out

Delivery is not measured. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.

Chains · one payout address, each chain read on its own

ChainPayout addressListingsAnswers 402x402-style payments
Base0xa91238cf312440118f7dd59ba78232acdb8ea39b52unknown144 x402-style payments from 3 distinct payers, $0.27 USDC in the last 7 days (Base, exact read)
Hosts
openai.mm.family
Listings
52 registered in the x402 catalogue
Price range
$0.0010 to $0.0063 per call, as registered
Categories (auto)
Inference (52)
First seen
2026-10-05 · last seen 2026-10-05

Claim this merchant

Sign a message from the payout address 0xa91238…8ea39b to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.

Registrations · 52

EndpointChainCategoryPriceCatalogue date
https://openai.mm.family/x402/v1/audio/speech
OpenAI text to speech (gpt-4o-mini-tts, tts-1, tts-1-hd), paid per call in USDC. OpenAI list $15 / $30 per 1M characters (tts-1 / tts-1-hd) or $12 per 1M audio tokens (gpt-4o-mini-tts, quoted at 4 per character), plus $…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/chat/completions
gpt-6.1-sol (OpenAI's newest model) and 25 more OpenAI chat models (gpt-6, gpt-5.x, gpt-4.1, gpt-4o, o-series), paid per call in USDC. OpenAI token rates on Flex (half price, may answer 429; default where offered), Stan…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/embeddings
OpenAI embeddings (text-embedding-3-large, text-embedding-3-small, text-embedding-ada-002), paid per call in USDC. OpenAI list $0.13 / $0.02 / $0.1 per 1M input tokens, plus $0.0005 (Base) or $0.0005 (Solana) per call; …
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/chat-latest/chat/completions
chat-latest: OpenAI Chat Latest chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 5.0/30.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges inp…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-4.1-mini/chat/completions
gpt-4.1-mini: OpenAI GPT 4.1 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 0.4/1.6, Fast 0.7/2.8; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the qu…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-4.1-nano/chat/completions
gpt-4.1-nano: OpenAI GPT 4.1 Nano chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 0.1/0.4, Fast 0.2/0.8; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the qu…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-4.1/chat/completions
gpt-4.1: OpenAI GPT 4.1 chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 2.0/8.0, Fast 3.5/14.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charg…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-4o-mini-tts/audio/speech
gpt-4o-mini-tts: OpenAI GPT 4o Mini TTS text to speech, paid per call in USDC. OpenAI list $12 per 1M audio tokens (quoted at 4 per character) plus $0.6 per 1M text tokens, plus $0.0005 (Base) or $0.0005 (Solana) per ca…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-4o-mini/chat/completions
gpt-4o-mini: OpenAI GPT 4o Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 0.15/0.6, Fast 0.25/1.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the qu…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-4o/chat/completions
gpt-4o: OpenAI GPT 4o chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 2.5/10.0, Fast 4.25/17.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charg…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5-mini/chat/completions
gpt-5-mini: OpenAI GPT 5 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.125/1.0, Standard 0.25/2.0, Fast 0.45/3.6; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) pe…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5-nano/chat/completions
gpt-5-nano: OpenAI GPT 5 Nano chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.025/0.2, Standard 0.05/0.4; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quo…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.1/chat/completions
gpt-5.1: OpenAI GPT 5.1 chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.625/5.0, Standard 1.25/10.0, Fast 2.5/20.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per cal…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.2/chat/completions
gpt-5.2: OpenAI GPT 5.2 chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.875/7.0, Standard 1.75/14.0, Fast 3.5/28.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per cal…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.4-long/chat/completions
gpt-5.4-long: OpenAI GPT 5.4 (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.5/11.25, Standard 5.0/22.5; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solan…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.4-mini/chat/completions
gpt-5.4-mini: OpenAI GPT 5.4 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.375/2.25, Standard 0.75/4.5, Fast 1.5/9.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.4-nano/chat/completions
gpt-5.4-nano: OpenAI GPT 5.4 Nano chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.1/0.625, Standard 0.2/1.25; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.4/chat/completions
gpt-5.4: OpenAI GPT 5.4 (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.25/7.5, Standard 2.5/15.0, Fast 5.0/30.0; pick with service_tier. Plus $0.0005 (Base) or $0.0…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.5-long/chat/completions
gpt-5.5-long: OpenAI GPT 5.5 (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 5.0/22.5, Standard 10.0/45.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solan…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.5/chat/completions
gpt-5.5: OpenAI GPT 5.5 (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.5/15.0, Standard 5.0/30.0, Fast 12.5/75.0; pick with service_tier. Plus $0.0005 (Base) or $0.…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.6-luna-long/chat/completions
gpt-5.6-luna-long: OpenAI GPT 5.6 Luna (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.2/0.9, Standard 0.4/1.8, Fast 0.8/3.6; pick with service_tier. Plus $0.0005 (Ba…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.6-luna/chat/completions
gpt-5.6-luna: OpenAI GPT 5.6 Luna (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.1/0.6, Standard 0.2/1.2, Fast 0.4/2.4; pick with service_tier. Plus $0.0005 (Base) …
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.6-sol-long/chat/completions
gpt-5.6-sol-long: OpenAI GPT 5.6 Sol (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 4.0/15.0, Standard 8.0/30.0, Fast 16.0/60.0; pick with service_tier. Plus $0.0005 (…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.6-sol/chat/completions
gpt-5.6-sol: OpenAI GPT 5.6 Sol (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.0/10.0, Standard 4.0/20.0, Fast 8.0/40.0; pick with service_tier. Plus $0.0005 (Base)…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.6-terra-long/chat/completions
gpt-5.6-terra-long: OpenAI GPT 5.6 Terra (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.0/9.0, Standard 4.0/18.0, Fast 8.0/36.0; pick with service_tier. Plus $0.0005…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5.6-terra/chat/completions
gpt-5.6-terra: OpenAI GPT 5.6 Terra (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.0/6.0, Standard 2.0/12.0, Fast 4.0/24.0; pick with service_tier. Plus $0.0005 (Ba…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-5/chat/completions
gpt-5: OpenAI GPT 5 chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.625/5.0, Standard 1.25/10.0, Fast 2.5/20.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; t…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-6-astra-long/chat/completions
gpt-6-astra-long: OpenAI GPT 6 Astra (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 10.0/37.5, Standard 20.0/75.0, Fast 40.0/150.0; pick with service_tier. Plus $0.000…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-6-astra/chat/completions
gpt-6-astra: OpenAI GPT 6 Astra (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 5.0/25.0, Standard 10.0/50.0, Fast 20.0/100.0; pick with service_tier. Plus $0.0005 (Ba…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-6-luna-long/chat/completions
gpt-6-luna-long: OpenAI GPT 6 Luna (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.1/0.375, Standard 0.2/0.75, Fast 0.4/1.5; pick with service_tier. Plus $0.0005 (Bas…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-6-luna/chat/completions
gpt-6-luna: OpenAI GPT 6 Luna (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.05/0.25, Standard 0.1/0.5, Fast 0.2/1.0; pick with service_tier. Plus $0.0005 (Base) or…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-6-sol-long/chat/completions
gpt-6-sol-long: OpenAI GPT 6 Sol (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.0/7.5, Standard 4.0/15.0, Fast 8.0/30.0; pick with service_tier. Plus $0.0005 (Base) …
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-6-sol/chat/completions
gpt-6-sol: OpenAI GPT 6 Sol (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.0/5.0, Standard 2.0/10.0, Fast 4.0/20.0; pick with service_tier. Plus $0.0005 (Base) or $…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-6.1-sol-long/chat/completions
gpt-6.1-sol-long: OpenAI GPT 6.1 Sol (>272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 2.0/7.5, Standard 4.0/15.0, Fast 8.0/30.0; pick with service_tier. Plus $0.0005 (Ba…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-6.1-sol/chat/completions
OpenAI's newest model. gpt-6.1-sol: OpenAI GPT 6.1 Sol (<=272K input tokens) chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.0/5.0, Standard 2.0/10.0, Fast 4.0/20.0; pick with service_tie…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/o1/chat/completions
o1: OpenAI o1 chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 15.0/60.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 10% of ma…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/o3-mini/chat/completions
o3-mini: OpenAI o3 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Standard (default) 1.1/4.4; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote charges input plus 1…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/o3/chat/completions
o3: OpenAI o3 chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 1.0/4.0, Standard 2.0/8.0, Fast 3.5/14.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; the quote c…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/o4-mini/chat/completions
o4-mini: OpenAI o4 Mini chat completions, paid per call in USDC. Per 1M tokens in/out: Flex (default) 0.55/2.2, Standard 1.1/4.4, Fast 2.0/8.0; pick with service_tier. Plus $0.0005 (Base) or $0.0005 (Solana) per call; t…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/text-embedding-3-large/embeddings
text-embedding-3-large: OpenAI Text Embedding 3 Large embeddings, paid per call in USDC. OpenAI list $0.13 per 1M input tokens, plus $0.0005 (Base) or $0.0005 (Solana) per call; minimum $0.001 per call; up to 8192 token…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/text-embedding-3-small/embeddings
text-embedding-3-small: OpenAI Text Embedding 3 Small embeddings, paid per call in USDC. OpenAI list $0.02 per 1M input tokens, plus $0.0005 (Base) or $0.0005 (Solana) per call; minimum $0.001 per call; up to 8192 token…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/text-embedding-ada-002/embeddings
text-embedding-ada-002: OpenAI Text Embedding Ada 002 embeddings, paid per call in USDC. OpenAI list $0.1 per 1M input tokens, plus $0.0005 (Base) or $0.0005 (Solana) per call; minimum $0.001 per call; up to 8192 tokens…
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/tts-1-hd/audio/speech
tts-1-hd: OpenAI TTS 1 HD text to speech, paid per call in USDC. OpenAI list $30 per 1M characters, plus $0.0005 (Base) or $0.0005 (Solana) per call; up to 4096 characters; voices: alloy, ash, coral, echo, fable, onyx, …
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/tts-1/audio/speech
tts-1: OpenAI TTS 1 text to speech, paid per call in USDC. OpenAI list $15 per 1M characters, plus $0.0005 (Base) or $0.0005 (Solana) per call; up to 4096 characters; voices: alloy, ash, coral, echo, fable, onyx, nova, …
BaseInference$0.0012026-10-01
https://openai.mm.family/x402/v1/models/gpt-image-1-mini/images/generations
gpt-image-1-mini: OpenAI GPT Image 1 Mini image generation, paid per call in USDC. OpenAI list $18.4 per 1M image tokens (1024x1024: low 272, medium 1056, high 4160 tokens), text in $2 per 1M, plus $0.0005 (Base) or $0.…
BaseInference$0.0030162026-10-01
https://openai.mm.family/x402/v1/images/generations
OpenAI image generation (gpt-image-2.5, gpt-image-2, gpt-image-1.5, gpt-image-1, gpt-image-1-mini, chatgpt-image-latest), paid per call in USDC. OpenAI list rates per 1M image tokens (1024x1024 low = 196 tokens on gpt-i…
BaseInference$0.0034732026-10-01
https://openai.mm.family/x402/v1/models/gpt-image-2.5-flare/images/generations
gpt-image-2.5-flare: OpenAI GPT Image 2.5 Flare image generation, paid per call in USDC. OpenAI list $30 per 1M image tokens (1024x1024: low 196, medium 439, high 1756 tokens), text in $5 per 1M, plus $0.0005 (Base) or …
BaseInference$0.0034732026-10-01
https://openai.mm.family/x402/v1/models/gpt-image-2.5-sunburst/images/generations
gpt-image-2.5-sunburst: OpenAI GPT Image 2.5 Sunburst image generation, paid per call in USDC. OpenAI list $30 per 1M image tokens (1024x1024: low 196, medium 439, high 1756 tokens), text in $5 per 1M, plus $0.0005 (Bas…
BaseInference$0.0034732026-10-01
https://openai.mm.family/x402/v1/models/gpt-image-2/images/generations
gpt-image-2: OpenAI GPT Image 2 image generation, paid per call in USDC. OpenAI list $30 per 1M image tokens (1024x1024: low 196, medium 1756, high 7024 tokens), text in $5 per 1M, plus $0.0005 (Base) or $0.0005 (Solana…
BaseInference$0.0034732026-10-01
https://openai.mm.family/x402/v1/models/gpt-image-1.5/images/generations
gpt-image-1.5: OpenAI GPT Image 1.5 image generation, paid per call in USDC. OpenAI list $32 per 1M image tokens (1024x1024: low 272, medium 1056, high 4160 tokens), text in $5 per 1M, plus $0.0005 (Base) or $0.0005 (So…
BaseInference$0.005592026-10-01

Descriptions are the seller’s own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.

Data CC-BY-4.0, attribution: data by satohub.ai. Collector run 2026-10-05. Appearing here is not an endorsement. Check an endpoint with the doctor.