MPPtempoquality 0.85

Veo 3.1 Fast video generation via micropayments — text-to-video and image-to-video, ~30s, $1–$2 per generation.

Price
per_call
Protocol
mpp
Verified
no
Endpoint
https://stablestudio.dev/api/generate/veo-3.1-fast/generate

What it does

This endpoint provides access to Google's Veo 3.1 model in a "fast" configuration through StableStudio, a pay-per-generation AI media platform. It generates videos from text prompts at 720p or 1080p resolution in 16:9 or 9:16 aspect ratios, with durations of 4, 6, or 8 seconds. Typical generation time is approximately 30 seconds, and pricing ranges from $1.00 to $2.00 per generation depending on resolution and duration. Payment is settled in USDC on Base (via x402 or MPP/Tempo). No API keys or subscriptions are required.

Beyond pure text-to-video, the endpoint supports multiple image modes: first-frame (pass a single image to anchor the opening frame), reference (up to 3 reference images for style guidance), and interpolation (provide first and last frame images to animate between them). A negative prompt field lets you specify elements to exclude. The asynchronous job flow works in three steps: POST the generation request with a signed USDC payment, receive a jobId, then poll the job status endpoint (authenticated via SIGN-IN-WITH-X wallet signature) until the video URL is returned.

StableStudio exposes a full OpenAPI 3.1 spec and supports both x402 and MPP (Tempo method, charge intent) payment protocols. The veo-3.1-fast variant trades some quality for significantly faster turnaround (~30s vs 1–2 minutes for the standard veo-3.1 endpoint). Image uploads for i2v modes use a separate three-step upload flow via Vercel Blob at $0.01 per upload.

Capabilities

text-to-videoimage-to-videoframe-interpolationreference-image-guidancenegative-prompt720p-1080p-outputasync-job-pollingusdc-micropaymentx402-paymentmpp-tempo-paymentno-api-key

Use cases

  • —Generate short video clips from text descriptions for social media content
  • —Animate a static image into a video using first-frame mode
  • —Create smooth transitions between two keyframes using interpolation mode
  • —Produce quick video prototypes or storyboard animations from prompts
  • —Generate portrait (9:16) or landscape (16:9) video assets programmatically

Fit

Best for

  • —Agents or apps needing fast, on-demand video generation without subscriptions
  • —Workflows requiring sub-minute turnaround for short AI-generated video clips
  • —Developers integrating pay-per-call video generation via crypto micropayments
  • —Image-to-video animation with style reference support

Not for

  • —Long-form video generation (max 8 seconds per clip)
  • —Users without a crypto wallet (USDC on Base required for payment)
  • —High-volume batch processing where subscription pricing would be cheaper

Quick start

# 1. POST without payment to get 402 challenge
curl -X POST https://stablestudio.dev/api/generate/veo-3.1-fast/generate \
  -H 'Content-Type: application/json' \
  -d '{"prompt": "A golden retriever running on a beach at sunset", "durationSeconds": "4", "resolution": "720p", "aspectRatio": "16:9"}'
# Returns 402 with PAYMENT-REQUIRED header containing USDC amount
# 2. Sign USDC payment, re-POST with PAYMENT-SIGNATURE header
# 3. Poll GET /api/jobs/{jobId} with SIGN-IN-WITH-X header

Example

Request

{
  "prompt": "A golden retriever running on a beach at sunset, cinematic lighting",
  "imageMode": "none",
  "resolution": "720p",
  "aspectRatio": "16:9",
  "negativePrompt": "blurry, low quality",
  "durationSeconds": "4"
}

Response

{
  "type": "veo-3.1-fast",
  "jobId": "abc123-def456-ghi789",
  "status": "pending",
  "success": true
}

Endpoint

URLhttps://stablestudio.dev/api/generate/veo-3.1-fast/generate
Transporthttp
Protocolmpp
CurrencypathUSD

Quality

0.85/ 1.00

Full OpenAPI 3.1 schema with detailed input/output definitions, comprehensive x-guidance documentation, clear pricing, and well-documented payment flow. The endpoint returned 405 on HEAD/GET probes (expected since it's POST-only), but the OpenAPI spec and agents.txt confirm it is live. Minor deduction for no direct 402 challenge capture on this specific endpoint and no dedicated docs page.

Warnings

  • —Probe returned 405 because HEAD/GET were used on a POST-only endpoint; this does not indicate the endpoint is down
  • —No dedicated documentation page exists (/docs returns 404); all docs are embedded in the OpenAPI spec x-guidance field
  • —Image-to-video modes require a separate paid upload flow ($0.01) before the generation call

Citations

Provenance

Indexed frommpp_dev
Enriched2026-04-19 16:49:38Z · anthropic/claude-opus-4.6 · v2
First seen2026-04-18
Last seen2026-04-22

Agent access

JSONhttps://clawmart.sh/api/listings/zR9cFx