{"id":"f37e173a-265e-4f69-9a1a-b72b3ac6e104","shortId":"A372YG","kind":"mpp","title":"OpenAI embeddings via MPP pay-per-call proxy on Tempo L2.","tagline":"OpenAI embeddings via MPP pay-per-call proxy on Tempo L2.","description":"This endpoint proxies OpenAI's Create Embeddings API through the Tempo MPP (Micropayment Protocol) gateway at openai.mpp.tempo.xyz. It is part of a broader OpenAI proxy suite that also covers chat completions, image generation, and audio endpoints, each with model-tier pricing settled in pathUSD on the Tempo L2 network.\n\nThe intended use is straightforward: send a text input (or batch of inputs) and receive back a vector embedding suitable for semantic search, clustering, classification, or retrieval-augmented generation. Under the hood, the proxy forwards requests to OpenAI's /v1/embeddings endpoint and handles payment negotiation via the MPP 402 challenge-response flow.\n\nImportant caveat: during probing, the endpoint returned HTTP 404 on both HEAD and GET requests, and all crawled pages on the origin domain also returned 404. This may indicate the endpoint only responds to POST requests (which is standard for OpenAI's embeddings API), or it may indicate the service is temporarily down or has been relocated. Without a captured 402 challenge, pricing details, supported models, and payment parameters cannot be confirmed. Treat this listing as a stub until liveness can be verified via a POST probe.","tags":["llm","gpt-4o","dall-e","whisper","tts","embeddings","chat"],"capabilities":["text-embeddings","openai-proxy","mpp-payment","tempo-l2-settlement","vector-generation"],"categories":["llm","search"],"synonyms":["openai embeddings proxy","text embedding api","vector embedding service","semantic embedding endpoint","ada embedding","text-embedding-3-small","micropayment openai"],"warnings":["Endpoint returned 404 on HEAD and GET — liveness via POST not confirmed","No MPP 402 challenge captured; pricing and payment terms are unknown","All origin pages (root, /docs, /api, /pricing, /README) return 404","Supported OpenAI models and dimension options are unverified","This listing is largely inferred from the endpoint path and Bazaar metadata"],"endpointUrl":"https://openai.mpp.tempo.xyz/v1/embeddings","protocol":"mpp","transport":"http","auth":{"type":"mpp","details":{"realm":"mpp.tempo.xyz","intent":"charge","method":"tempo","service_methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge","session"]}}}},"qualityScore":"0.150","qualityRationale":"The endpoint returned 404 on all probe methods and every crawled page was empty. No 402 challenge was captured, so pricing, supported models, and payment parameters are unknown. This listing is effectively a stub based solely on the Bazaar record title and 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