{"uid":"cap_VBfBKcRqvNWQ0dqSHh6uA","slug":"stability-ai-sketch-c770a16d","name":"Stability AI Sketch","description":"Convert a rough sketch into a detailed image guided by a prompt.","url":"https://stability-ai.mpp.paywithlocus.com/stability-ai/sketch?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["image","prompt"],"properties":{"seed":{"type":"number","description":"Random seed"},"image":{"type":"string","description":"Sketch / line art image Send a public HTTPS URL (recommended; files up to 10 MiB) or base64/data URI. Hosted MPP JSON requests must stay below 8 KiB, so use a URL for larger files."},"prompt":{"type":"string","description":"Target image description"},"output_format":{"type":"string","description":"jpeg|png|webp"},"negative_prompt":{"type":"string","description":"Things to exclude"},"control_strength":{"type":"number","description":"Sketch adherence 0–1 (default 0.7)"}},"additionalProperties":true},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["image-generation","stable-diffusion","upscaling","3d","ai","media"],"displayCostAmount":"0.057","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":1,"rating":{"score":"0.75","successRate":"0.50","reviews":1,"stars":"4.0","state":"rated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.057/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.057","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.057","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Oznr6Ya5T4EQ84s0Eg9YG","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.057","costPer":"request","priority":0,"asset":"0x20c000000000000000000000b9537d11c60e8b50","unit":"request","depositMicros":null,"planRef":null}],"brandName":"Stability AI","brandSlug":"stability-ai","brandBaseUrl":"https://stability.ai","brandDocsUrl":"https://platform.stability.ai/docs/api-reference","whatItDoes":"Transforms a sketch or line art image into a fully rendered image guided by a text prompt, using Stability AI's ControlNet-style sketch conditioning","exampleAgentPrompt":"Take this sketch image I'm uploading and render it as a detailed fantasy landscape painting — the prompt is 'mystical forest with glowing mushrooms and misty atmosphere', exclude any urban or modern elements, and keep the sketch adherence at 0.8, output as PNG.","exampleUseCases":null,"resultDescription":"A fully rendered image (JPEG, PNG, or WebP) generated by using the provided sketch or line art as a structural guide combined with the text prompt, respecting the specified control strength for how closely the output follows the input sketch","failureModes":["Missing required 'image' field — returns validation error","Missing required 'prompt' field — returns validation error","Invalid control_strength value outside 0–1 range — returns parameter error","Unsupported output_format value — returns validation error","Image file too large or unsupported format — returns upload error","Payment insufficient or USDC balance too low — returns payment error"],"whenToPreferThis":"Choose this endpoint when you have an existing sketch, line drawing, wireframe, or rough outline and want to generate a finished image that preserves the structural composition. Ideal for concept artists, designers turning wireframes into visuals, or anyone who wants AI to render their hand-drawn ideas while respecting the original layout. Prefer this over pure text-to-image (Generate SD3) when compositional control from an existing drawing is needed, or over Structure when the input is specifically a sketch/line art rather than a detailed photo.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":2,"lastUsedAt":"2026-06-16T18:15:41.331Z","lastSuccessfullyRanAt":"2026-06-16T18:15:41.331Z","lastHealthCheckAt":"2026-10-10T18:33:16.986Z","isFirstParty":false,"canonicalSlug":"stability-ai-sketch-c770a16d"}