{"id":"da7b49fd-fb1d-40cf-9690-35454ec71cb1","shortId":"mrf4yX","kind":"mpp","title":"Nano Banana Pro image editing via micropayments — up to 14 reference images, up to 4K resolution","tagline":"Nano Banana Pro image editing via micropayments — up to 14 reference images, up to 4K resolution","description":"This endpoint provides AI image editing using the Nano Banana Pro model, hosted on StableStudio. It accepts a text prompt along with 1–14 reference image URLs and produces an edited image at up to 4K resolution. Aspect ratios supported include 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, and 21:9. The edit operation costs $0.13–$0.24 per call and typically completes in ~10 seconds.\n\nPayment is handled via the MPP/x402 micropayment protocol using USDC on Base (EIP-155:8453). No API keys or subscriptions are required — callers POST to the endpoint without payment to receive a 402 challenge, then sign a USDC authorization and resubmit with a PAYMENT-SIGNATURE header. The response returns a jobId which is polled via GET /api/jobs/{jobId} (authenticated with SIGN-IN-WITH-X wallet signature) until the result is ready. Reference images must first be uploaded through the /api/upload flow ($0.01 per upload) to obtain blob URLs.\n\nStableStudio is part of a broader platform offering multiple image and video generation models including GPT Image 1.5, Flux 2 Pro, Grok, Seedance, Wan 2.6, Sora 2, and Veo 3.1. The endpoint is a POST-only route; the probe returned 405 on HEAD/GET, which is expected behavior for a POST endpoint. An MCP server is available via `npx -y agentcash@latest`.","tags":["image","video","generation","nano-banana","gpt-image","grok","flux","sora","veo","seedance","wan"],"capabilities":["image-editing","reference-image-input","multi-image-input","aspect-ratio-selection","resolution-up-to-4k","micropayment-auth","usdc-on-base","async-job-polling","no-api-key","wallet-auth"],"categories":["vision","image-generation"],"synonyms":["nano banana image edit","AI image editing","image manipulation API","reference-based image editing","StableStudio edit","nano-banana-pro edit","pay-per-use image editing","micropayment image API","USDC image generation"],"warnings":["Probe returned 405 on HEAD/GET — endpoint is POST-only, which is expected but means no live 402 challenge was captured for this specific route","Reference images require a separate paid upload flow ($0.01 per upload via /api/upload) before they can be used","No dedicated documentation pages found (stablestudio.dev/docs returns 404); all docs are in the OpenAPI x-guidance field"],"endpointUrl":"https://stablestudio.dev/api/generate/nano-banana/edit","protocol":"mpp","transport":"http","auth":{"type":"mpp","details":{"realm":"stablestudio.dev","intent":"charge","method":"tempo","service_methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}}}},"qualityScore":"0.820","qualityRationale":"Full OpenAPI schema with detailed input/output definitions, clear pricing ($0.13–$0.24), documented payment flow, and comprehensive guidance. The probe returned 405 because the endpoint is POST-only, which is expected. Deducted slightly because no direct 402 challenge was captured for this specific endpoint and crawled docs pages return 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'/api/jobs':166 '/api/upload':190 '0.01':192 '0.13':99 '0.24':100 '1':55,74,75 '1.5':216 '10':107 '14':10,26,56 '16':89,90 '2':76,79,218,225 '2.6':223 '21':93 '3':77,78,80,83 '3.1':228 '4':81,82,84,87 '402':141 '405':240 '4k':15,31,68 '5':85,86 '8453':123 '9':88,91,94 'AI image editing' 'StableStudio edit' 'USDC image generation' 'accept':49 'agentcash':259 'ai':36 'along':53 'api':125 'aspect':70 'aspect-ratio-selection' 'async-job-polling' 'authent':168 'author':147 'avail':255 'banana':2,18,42 'base':120 'behavior':246 'blob':197 'broader':204 'call':102 'caller':131 'challeng':142 'complet':105 'cost':98 'edit':5,21,38,63,96 'eip':121 'endpoint':34,135,230,250 'expect':245 'first':185 'flow':191 'flux':217 'generat':211 'get':165 'gpt':214 'grok':220 'handl':111 'head/get':242 'header':155 'host':45 'imag':4,12,20,28,37,58,64,183,208,215 'image manipulation API' 'image-editing' 'includ':73,213 'jobid':160,167 'key':126 'latest':260 'mcp':252 'micropay':7,23,115 'micropayment image API' 'micropayment-auth' 'model':44,212 'mpp/x402':114 'multi-image-input' 'multipl':207 'must':184 'nano':1,17,41 'nano banana image edit' 'nano-banana-pro edit' 'no-api-key' 'npx':257 'obtain':196 'offer':206 'oper':97 'part':201 'pay-per-use image editing' 'payment':109,137,153 'payment-signatur':152 'per':101,193 'platform':205 'poll':163 'post':132,234,249 'post-on':233 'pro':3,19,43,219 'probe':238 'produc':61 'prompt':52 'protocol':116 'provid':35 'ratio':71 'readi':181 'receiv':139 'refer':11,27,57,182 'reference-based image editing' 'reference-image-input' 'requir':130 'resolut':16,32,69 'resolution-up-to-4k' 'respons':157 'resubmit':149 'result':179 'return':158,239 'rout':236 'second':108 'seedanc':221 'server':253 'sign':144,171 'sign-in-with-x':170 'signatur':154,176 'sora':224 'stablestudio':47,199 'subscript':128 'support':72 'text':51 'typic':104 'upload':187,194 'url':59,198 'usdc':118,146 'usdc-on-base' 'use':39,117 'veo':227 'via':6,22,112,164,256 'video':210 'wallet':175 'wallet-auth' 'wan':222 'without':136 'x':174 'y':258","prices":[{"id":"95fd2664-9514-4837-816f-831da3dc9899","listingId":"da7b49fd-fb1d-40cf-9690-35454ec71cb1","amountUsd":"0.039","unit":"per_call","nativeCurrency":"pathUSD","nativeAmount":"39000","chain":"tempo","payTo":null,"paymentMethod":"mpp-tempo","isPrimary":true,"details":{"realm":"stablestudio.dev","intent":"charge","method":"tempo","dynamic":false,"decimals":6,"unit_type":null,"amount_hint":null,"raw_payment":{"amount":"39000","intent":"charge","method":"tempo","currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"description":"Nano Banana image editing"},"asset_contract":"0x20c000000000000000000000b9537d11c60e8b50"},"createdAt":"2026-04-18T20:00:04.046Z"}],"sources":[{"listingId":"da7b49fd-fb1d-40cf-9690-35454ec71cb1","source":"mpp_dev","sourceId":"stablestudio:POST:/api/generate/nano-banana/edit","sourceUrl":"https://mpp.dev/api/services","isPrimary":true,"firstSeenAt":"2026-04-18T20:00:04.046Z","lastSeenAt":"2026-04-22T05:45:11.563Z"}],"details":{"listingId":"da7b49fd-fb1d-40cf-9690-35454ec71cb1","quickStartSnippet":"# 1. POST without payment to get 402 challenge\ncurl -X POST https://stablestudio.dev/api/generate/nano-banana-pro/edit \\\n  -H 'Content-Type: application/json' \\\n  -d '{\"prompt\": \"Make the background a sunset\", \"images\": [\"https://your-blob-url.vercel-storage.com/img.png\"], \"aspectRatio\": \"16:9\", \"imageSize\": \"2K\"}'\n# Returns 402 with PAYMENT-REQUIRED header\n# 2. Sign USDC payment, re-POST with PAYMENT-SIGNATURE header\n# 3. Poll GET /api/jobs/{jobId} with SIGN-IN-WITH-X header","exampleRequest":{"images":["https://example.blob.vercel-storage.com/uploads/abc/photo.png"],"prompt":"Make the background a sunset over the ocean","imageSize":"2K","aspectRatio":"16:9"},"exampleResponse":{"type":"nano-banana-pro-edit","jobId":"a1b2c3d4-e5f6-7890-abcd-ef1234567890","status":"pending","success":true},"schema":{"path":"/api/generate/nano-banana/edit","method":"POST","payment":{"amount":"39000","intent":"charge","method":"tempo","currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"description":"Nano Banana image editing"},"description":"Nano Banana image editing"},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Nano Banana Pro edit costs $0.13–$0.24 per call and takes ~10s","source_url":"https://stablestudio.dev/api/openapi.json"},{"claim":"Edit endpoint accepts 1–14 reference images with prompt, aspectRatio, and imageSize fields","source_url":"https://stablestudio.dev/api/openapi.json"},{"claim":"Payment is USDC on Base (EIP-155:8453) with 6 decimals","source_url":"https://stablestudio.dev/api/openapi.json"},{"claim":"MCP server available via npx -y agentcash@latest","source_url":"https://stablestudio.dev/.well-known/agents.txt"},{"claim":"File upload flow costs $0.01 per upload","source_url":"https://stablestudio.dev/api/openapi.json"}],"useCases":["Editing product photos using text prompts and reference images","Restyling or compositing images with up to 14 references at up to 4K resolution","Agent-driven image editing workflows with per-call USDC micropayments","Batch image editing without subscription commitments","Creating variations of existing images guided by text descriptions"],"bestFor":["Agents or apps needing pay-per-call image editing without API keys","Reference-based image editing with multiple source images","High-resolution (up to 4K) image editing at low per-call cost","Crypto-native workflows settling in USDC on Base"],"notFor":["Real-time or sub-second image editing (results take ~10s plus polling)","Users without a crypto wallet for USDC payments","Free or unlimited-use image editing needs"],"kindDetails":{"docs":{"llmsTxt":"https://stablestudio.dev/llms.txt","homepage":"https://stablestudio.dev"},"tags":["image","video","generation","nano-banana","gpt-image","grok","flux","sora","veo","seedance","wan"],"realm":"stablestudio.dev","status":"active","methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}},"provider":{"url":"https://stablestudio.dev","name":"Merit Systems"},"categories":["ai","media"],"service_id":"stablestudio","integration":"first-party","service_name":"StableStudio","service_description":"Pay-per-generation AI image and video creation — Nano Banana, GPT Image, Grok, Flux, Sora, Veo, Seedance, and Wan."},"updatedAt":"2026-04-22T05:45:11.563Z"}}