{"id":"4dda2aeb-f7fd-4350-926b-973ca6ca8e47","shortId":"FhnAWg","kind":"mpp","title":"Generate images from text prompts via xAI's Grok models, paid per-call over MPP/Tempo.","tagline":"Generate images from text prompts via xAI's Grok models, paid per-call over MPP/Tempo.","description":"This endpoint provides text-to-image generation powered by xAI's Grok image models, accessible through the Locus MPP (Micropayment Protocol) gateway. It accepts a text prompt and returns one or more generated images as URLs or base64-encoded data. Two model tiers are available: 'grok-imagine-image' (default) and 'grok-imagine-image-pro'. You can control the number of images generated, the aspect ratio (1:1, 16:9, 9:16, 4:3, 3:2, or auto), and the response format.\n\nPayment is handled via the MPP charge intent settled on Tempo L2, with pricing listed at $0.02–$0.08 per image depending on the model selected. The endpoint is part of a broader Grok service suite hosted at grok.mpp.paywithlocus.com that also offers chat completions, web/X search, code execution, image editing, and text-to-speech — each on its own path.\n\nNote: The probe did not capture a live 402 challenge on HEAD/GET for this specific path (it returned 404), which is expected since the endpoint only accepts POST requests. The OpenAPI spec is well-defined with a clear request schema, and the service root directs callers to skill.md and llms.txt documentation at paywithlocus.com for integration guidance.","tags":["llm","chat","x-search","web-search","image-generation","tts"],"capabilities":["text-to-image","image-generation","aspect-ratio-control","base64-output","url-output","per-call-payment","tempo-settlement","mpp-protocol"],"categories":["vision","ai"],"synonyms":["grok image generation","xai image api","text to image grok","grok-imagine-image","ai image generator","grok imagine pro","locus mpp image"],"warnings":["Probe returned 404 on HEAD/GET — endpoint likely POST-only; no live 402 challenge was captured to confirm liveness","No response schema documented in the OpenAPI spec; response format is inferred from the response_format parameter","Pricing ($0.02–$0.08 per image) comes from the OpenAPI x-payment-info description only, not from a captured payment challenge"],"endpointUrl":"https://grok.mpp.paywithlocus.com/grok/image-generate","protocol":"mpp","transport":"http","auth":{"type":"mpp","details":{"realm":"grok.mpp.paywithlocus.com","intent":"charge","method":"tempo","service_methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}}}},"qualityScore":"0.550","qualityRationale":"The OpenAPI spec provides a clear request schema, model options, pricing description, and parameter documentation. However, no live 402 challenge was captured for this POST-only endpoint, no response schema or example response is documented, and all crawled pages returned 404 (expected for non-endpoint paths). Pricing is described but not machine-verifiable from a captured 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