Stability AI via Locus MPP

https://stability-ai.mpp.paywithlocus.com 95% (100/105)

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Compliance Checks

✓ All paid ops declare 402 response MUST 10pt

✓ All x-payment-info valid MUST 10pt

✓ Challenge has Cache-Control: no-store MUST 5pt

✗ Challenge digest on POST SHOULD 3pt

✓ Challenge has expires SHOULD 3pt

✓ Challenge has Problem Details SHOULD 2pt

✓ Challenge has required params MUST 5pt

✓ Challenge has WWW-Authenticate MUST 5pt

✓ Challenge returns 402 MUST 10pt

✓ Correct Content-Type MUST 5pt

✓ Has Cache-Control on discovery SHOULD 5pt

✓ Has input schemas SHOULD 5pt

✓ Has llms.txt SHOULD 5pt

✓ Has /openapi.json at root MUST 10pt

✓ Has required top-level fields MUST 10pt

✓ Served over HTTPS MUST 10pt

✗ Uses standard categories SHOULD 2pt

1 issue

POST endpoint challenge missing digest parameter (SHOULD per spec)

Paid Operations (23)

POST /stability-ai/generate-ultra 0.092 USDC.e

Generate Ultra

Amount: 0.092 (raw 92000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
aspect_ratio	string	No	Output aspect ratio: 21:9\|16:9\|3:2\|5:4\|1:1\|4:5\|2:3\|9:16 (default 1:1)
image	string	No	Input image for img2img (requires strength)
negative_prompt	string	No	Things to exclude from the image
output_format	string	No	jpeg\|png\|webp (default jpeg)
prompt	string	Yes	Text prompt
seed	number	No	Random seed
strength	number	No	img2img influence 0–1
style_preset	string	No	Style preset (e.g. photographic, digital-art, cinematic)

POST /stability-ai/generate-core 0.034 USDC.e

Generate Core

Amount: 0.034 (raw 34000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
aspect_ratio	string	No	Output aspect ratio: 21:9\|16:9\|3:2\|5:4\|1:1\|4:5\|2:3\|9:16 (default 1:1)
negative_prompt	string	No	Things to exclude from the image
output_format	string	No	jpeg\|png\|webp (default jpeg)
prompt	string	Yes	Text prompt
seed	number	No	Random seed
style_preset	string	No	Style preset (e.g. photographic, digital-art)

POST /stability-ai/generate-sd3 dynamic USDC.e

Generate SD3

Amount: dynamic
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
aspect_ratio	string	No	Output aspect ratio (default 1:1)
cfg_scale	number	No	Classifier-free guidance scale
image	string	No	Input image for image-to-image mode
mode	string	No	text-to-image (default) \| image-to-image
model	string	No	sd3.5-large ($0.075) \| sd3.5-large-turbo ($0.046) \| sd3.5-medium ($0.040) \| sd3.5-flash ($0.029) — default sd3.5-medium
negative_prompt	string	No	Things to exclude from the image
output_format	string	No	jpeg\|png\|webp
prompt	string	Yes	Text prompt
seed	number	No	Random seed
strength	number	No	img2img influence 0–1

POST /stability-ai/erase 0.057 USDC.e

Erase

Amount: 0.057 (raw 57000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
grow_mask	number	No	Expand mask by N pixels
image	string	Yes	Source image
mask	string	No	Mask image (white = erase)
output_format	string	No	jpeg\|png\|webp
seed	number	No	Random seed

POST /stability-ai/inpaint 0.057 USDC.e

Inpaint

Amount: 0.057 (raw 57000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
grow_mask	number	No	Expand mask by N pixels
image	string	Yes	Source image
mask	string	No	Mask image (white = fill)
negative_prompt	string	No	Things to exclude
output_format	string	No	jpeg\|png\|webp
prompt	string	Yes	Fill prompt
seed	number	No	Random seed

POST /stability-ai/outpaint 0.046 USDC.e

Outpaint

Amount: 0.046 (raw 46000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
creativity	number	No	Creativity level 0–1
down	number	No	Pixels to add on bottom
image	string	Yes	Source image
left	number	No	Pixels to add on the left
output_format	string	No	jpeg\|png\|webp
prompt	string	No	Guide prompt
right	number	No	Pixels to add on the right
seed	number	No	Random seed
up	number	No	Pixels to add on top

POST /stability-ai/search-and-replace 0.057 USDC.e

Search and Replace

Amount: 0.057 (raw 57000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
grow_mask	number	No	Expand detection mask by N pixels
image	string	Yes	Source image
negative_prompt	string	No	Things to exclude
output_format	string	No	jpeg\|png\|webp
prompt	string	Yes	What to replace the object with
search_prompt	string	Yes	Description of the object to find and replace
seed	number	No	Random seed

POST /stability-ai/search-and-recolor 0.057 USDC.e

Search and Recolor

Amount: 0.057 (raw 57000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
image	string	Yes	Source image
negative_prompt	string	No	Things to exclude
output_format	string	No	jpeg\|png\|webp
prompt	string	Yes	New color/appearance for the object
seed	number	No	Random seed
select_prompt	string	Yes	Description of the object to recolor

POST /stability-ai/remove-background 0.057 USDC.e

Remove Background

Amount: 0.057 (raw 57000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
image	string	Yes	Source image
output_format	string	No	png\|webp (default png)

POST /stability-ai/replace-background-and-relight 0.092 USDC.e

Replace Background & Relight

Amount: 0.092 (raw 92000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
background_prompt	string	No	Text description of the new background
background_reference	string	No	Reference image for the new background
foreground_prompt	string	No	Description of the foreground subject
light_source_direction	string	No	left\|right\|above\|below
light_source_strength	number	No	Light intensity 0–1
output_format	string	No	jpeg\|png\|webp
seed	number	No	Random seed
subject_image	string	Yes	Foreground subject image

POST /stability-ai/upscale-fast 0.023 USDC.e

Upscale Fast

Amount: 0.023 (raw 23000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
image	string	Yes	Source image
output_format	string	No	jpeg\|png\|webp

POST /stability-ai/upscale-conservative 0.46 USDC.e

Upscale Conservative

Amount: 0.46 (raw 460000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
creativity	number	No	Detail enhancement level 0–1 (default 0.35)
image	string	Yes	Source image
negative_prompt	string	No	Things to exclude
output_format	string	No	jpeg\|png\|webp
prompt	string	Yes	Description of the image content
seed	number	No	Random seed

POST /stability-ai/upscale-creative 0.69 USDC.e

Upscale Creative

Amount: 0.69 (raw 690000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
creativity	number	No	AI enhancement level 0–1 (default 0.3)
image	string	Yes	Source image
negative_prompt	string	No	Things to exclude
output_format	string	No	jpeg\|png\|webp
prompt	string	Yes	Description of the image content
seed	number	No	Random seed
style_preset	string	No	Style preset

POST /stability-ai/sketch 0.057 USDC.e

Sketch

Amount: 0.057 (raw 57000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
control_strength	number	No	Sketch adherence 0–1 (default 0.7)
image	string	Yes	Sketch / line art image
negative_prompt	string	No	Things to exclude
output_format	string	No	jpeg\|png\|webp
prompt	string	Yes	Target image description
seed	number	No	Random seed

POST /stability-ai/structure 0.057 USDC.e

Structure

Amount: 0.057 (raw 57000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
control_strength	number	No	Structure adherence 0–1 (default 0.7)
image	string	Yes	Structure reference image
negative_prompt	string	No	Things to exclude
output_format	string	No	jpeg\|png\|webp
prompt	string	Yes	Target image description
seed	number	No	Random seed

POST /stability-ai/style-guide 0.057 USDC.e

Style Guide

Amount: 0.057 (raw 57000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
aspect_ratio	string	No	Output aspect ratio
fidelity	number	No	Style fidelity 0–1 (default 0.5)
image	string	Yes	Style reference image
negative_prompt	string	No	Things to exclude
output_format	string	No	jpeg\|png\|webp
prompt	string	Yes	Target image description
seed	number	No	Random seed

POST /stability-ai/style-transfer 0.092 USDC.e

Style Transfer

Amount: 0.092 (raw 92000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
change_strength	number	No	Overall change strength 0–1
composition_fidelity	number	No	Preserve original composition 0–1
init_image	string	Yes	Content image to restyle
output_format	string	No	jpeg\|png\|webp
prompt	string	No	Additional prompt guidance
seed	number	No	Random seed
style_image	string	Yes	Style reference image
style_strength	number	No	Style intensity 0–1

POST /stability-ai/stable-fast-3d 0.115 USDC.e

Stable Fast 3D

Amount: 0.115 (raw 115000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
foreground_ratio	number	No	Subject scale in frame (default 0.85)
image	string	Yes	Source image of the object
remesh	string	No	none\|triangle\|quad
texture_resolution	number	No	512\|1024\|2048 (default 1024)

POST /stability-ai/stable-point-aware-3d 0.046 USDC.e

Stable Point Aware 3D

Amount: 0.046 (raw 46000)
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
foreground_ratio	number	No	Subject scale in frame (default 1.3)
guidance_scale	number	No	Generation guidance scale (default 3)
image	string	Yes	Source image of the object
seed	number	No	Random seed
texture_resolution	number	No	512\|1024\|2048 (default 1024)

POST /stability-ai/text-to-audio dynamic USDC.e

Text to Audio

Amount: dynamic
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
cfg_scale	number	No	Guidance scale
duration	number	No	Output duration in seconds (default 190)
model	string	No	stable-audio-2.5 ($0.23) \| stable-audio-2 (step-based, default)
output_format	string	No	mp3\|wav (default mp3)
prompt	string	Yes	Audio description prompt
seed	number	No	Random seed
steps	number	No	Inference steps — affects cost for stable-audio-2 (default 50)

POST /stability-ai/audio-to-audio dynamic USDC.e

Audio to Audio

Amount: dynamic
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
audio	string	Yes	Input audio file
model	string	No	stable-audio-2.5 \| stable-audio-2 (default)
output_format	string	No	mp3\|wav
prompt	string	Yes	Transformation description
seed	number	No	Random seed
steps	number	No	Inference steps (default 50)
strength	number	No	Transformation intensity 0–1 (default 1)

POST /stability-ai/audio-inpaint dynamic USDC.e

Audio Inpaint

Amount: dynamic
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
audio	string	Yes	Input audio file
mask_end	number	No	End of masked region in seconds (default 190)
mask_start	number	No	Start of masked region in seconds (default 30)
model	string	No	stable-audio-2.5 \| stable-audio-2 (default)
output_format	string	No	mp3\|wav
prompt	string	Yes	Description of replacement content
steps	number	No	Inference steps (default 8)

POST /stability-ai/result 0 USDC.e

Result

Amount: 0
Currency: USDC.e
Method: tempo
Intent: charge
402 Declared: Yes

Input Schema

Field	Type	Required	Description
id	string	Yes	Async generation ID returned by the initiating call

Payment Methods

Methods: tempo
Intents: charge
Currencies (discovery): USDC.e
Currency (challenge): USDC.e on Tempo (Tempo)
Multiple Challenges: No

Recipients

0x060b0fB0Be9d90557577B3AEE480711067149Ff0

Per-endpoint breakdown

POST /stability-ai/erase: 0x060b0fB0Be9d90557577B3AEE480711067149Ff0
POST /stability-ai/generate-core: 0x060b0fB0Be9d90557577B3AEE480711067149Ff0
POST /stability-ai/generate-sd3: 0x060b0fB0Be9d90557577B3AEE480711067149Ff0
POST /stability-ai/generate-ultra: 0x060b0fB0Be9d90557577B3AEE480711067149Ff0
POST /stability-ai/inpaint: 0x060b0fB0Be9d90557577B3AEE480711067149Ff0
POST /stability-ai/outpaint: 0x060b0fB0Be9d90557577B3AEE480711067149Ff0

Security

TLS Version: TLSv1.3
Challenge ID Unique: -
Challenge ID Length: -
Digest Binding: -

Uptime

Discovery: Reachable (792ms)
Challenge: Reachable (641ms)
Last Checked: 2026-04-07T19:43:30Z

Schema Completeness

Paid Operations: 23
With Input Schema: 23
With Description: 23

Documentation

Homepage: https://stability.ai
API Reference: https://platform.stability.ai/docs/api-reference
llms.txt: https://beta.paywithlocus.com/mpp/stability-ai.md reachable

Discovery

OpenAPI URL: https://stability-ai.mpp.paywithlocus.com/openapi.json
OpenAPI Version: 3.1.0
Service Version: 1.0.0
Document Size: 20241 bytes
Document Hash: d8f79c2739f7fe0e53109661560857265071768b4976110bedb981805d5153d5

Version History (2 snapshots)

Scan snapshots

Date	Grade	Score	Response	Status
2026-04-06	A	95%	860ms	Up
2026-04-07	A	95%	667ms	Up