MPPtempoquality 0.82

Nano Banana Pro image editing via micropayments — up to 14 reference images, up to 4K resolution

Price
$0.039 / call
Protocol
mpp
Verified
no
Endpoint
https://stablestudio.dev/api/generate/nano-banana/edit

What it does

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.

Payment 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.

StableStudio 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`.

Capabilities

image-editingreference-image-inputmulti-image-inputaspect-ratio-selectionresolution-up-to-4kmicropayment-authusdc-on-baseasync-job-pollingno-api-keywallet-auth

Use cases

  • —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

Fit

Best for

  • —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

Not for

  • —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

Quick start

# 1. POST without payment to get 402 challenge
curl -X POST https://stablestudio.dev/api/generate/nano-banana-pro/edit \
  -H 'Content-Type: application/json' \
  -d '{"prompt": "Make the background a sunset", "images": ["https://your-blob-url.vercel-storage.com/img.png"], "aspectRatio": "16:9", "imageSize": "2K"}'
# Returns 402 with PAYMENT-REQUIRED header
# 2. Sign USDC payment, re-POST with PAYMENT-SIGNATURE header
# 3. Poll GET /api/jobs/{jobId} with SIGN-IN-WITH-X header

Example

Request

{
  "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"
}

Response

{
  "type": "nano-banana-pro-edit",
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "status": "pending",
  "success": true
}

Endpoint

URLhttps://stablestudio.dev/api/generate/nano-banana/edit
Transporthttp
Protocolmpp
CurrencypathUSD

Quality

0.82/ 1.00

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 404.

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

Citations

Provenance

Indexed frommpp_dev
Enriched2026-04-19 16:48:10Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/mrf4yX