MPPtempoquality 0.65

Stability AI Generate Ultra — highest-quality text-to-image generation via pay-per-call MPP

Price
$0.092 / call
Protocol
mpp
Verified
no
Endpoint
https://stability-ai.mpp.paywithlocus.com/stability-ai/generate-ultra

What it does

The Generate Ultra endpoint is Stability AI's premium text-to-image model, exposed through the Locus MPP (Micropayment Protocol) gateway. It accepts a text prompt and optional parameters (negative prompt, aspect ratio, output format, style preset, seed, and img2img inputs) and returns a generated image. Payment is settled per call via the Tempo method on pathUSD at $0.092 per generation.

This endpoint is part of a broader Stability AI suite available through the same MPP provider, which includes Generate Core ($0.034), Generate SD3 ($0.029–$0.075 depending on model), image editing tools (erase, inpaint, outpaint, search-and-replace, search-and-recolor, sketch, structure, style guide, style transfer), background removal and replacement with relighting, multiple upscaling tiers (fast at $0.023, conservative at $0.46, creative at $0.69), 3D model generation (Stable Fast 3D, Stable Point Aware 3D), and audio generation/editing (text-to-audio, audio-to-audio, audio inpaint). All endpoints use POST with JSON request bodies and charge via the same Tempo/pathUSD settlement.

The Generate Ultra endpoint supports aspect ratios including 21:9, 16:9, 3:2, 5:4, 1:1, 4:5, 2:3, and 9:16. Output formats include JPEG, PNG, and WebP. An image-to-image mode is available by providing an input image with a strength parameter (0–1). The only required field is `prompt`. Note that the probe did not capture a 402 challenge on HEAD/GET — the endpoint is POST-only — but the OpenAPI spec with full payment metadata is present and well-structured.

Capabilities

text-to-imageimg2imgnegative-promptaspect-ratio-controlstyle-presetsseed-reproducibilityjpeg-outputpng-outputwebp-outputmpp-tempo-settlementper-call-payment

Use cases

  • —Generating high-quality images from text prompts for marketing, design, or content creation
  • —Image-to-image transformation using a reference image with adjustable strength
  • —Producing images in specific aspect ratios for social media, print, or web layouts
  • —Automated image generation pipelines where agents pay per call without API keys
  • —Batch creative asset generation with reproducible results via seed control

Fit

Best for

  • —AI agents needing pay-per-call image generation without subscription management
  • —Developers wanting Stability AI's highest-quality model via a simple POST endpoint
  • —Workflows requiring deterministic outputs through seed-based reproducibility
  • —Applications needing multiple aspect ratios and output formats from a single endpoint

Not for

  • —High-volume generation where subscription pricing would be more cost-effective
  • —Real-time or latency-sensitive applications (generation may be async)
  • —Users who need free or open-source image generation without per-call costs

Quick start

curl -X POST https://stability-ai.mpp.paywithlocus.com/stability-ai/generate-ultra \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <MPP_TOKEN>" \
  -d '{"prompt": "A futuristic city at sunset, photorealistic", "aspect_ratio": "16:9", "output_format": "png"}'

Example

Request

{
  "seed": 42,
  "prompt": "A futuristic city at sunset, photorealistic",
  "aspect_ratio": "16:9",
  "style_preset": "photographic",
  "output_format": "png",
  "negative_prompt": "blurry, low quality"
}

Endpoint

URLhttps://stability-ai.mpp.paywithlocus.com/stability-ai/generate-ultra
Transporthttp
Protocolmpp
CurrencypathUSD

Quality

0.65/ 1.00

The OpenAPI spec is comprehensive with full request schemas, payment metadata, and pricing for this and sibling endpoints. However, the probe did not capture a live 402 challenge (the endpoint is POST-only and was probed with HEAD/GET), no response schema is documented, and crawled pages returned only 404 JSON errors. No example responses are available.

Warnings

  • —Probe returned 404 on HEAD/GET — endpoint is POST-only; liveness not confirmed via 402 challenge
  • —No response schema documented in OpenAPI spec — output format/structure is unknown
  • —Currency address 0x20c000000000000000000000b9537d11c60e8b50 assumed to be pathUSD with 6 decimals based on Tempo method context; if decimals differ, pricing would be incorrect
  • —Crawled pages all returned 404; no additional documentation was retrievable from the provider origin

Citations

Provenance

Indexed frommpp_dev
Enriched2026-04-19 17:39:09Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

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