Composed media · 14-day validation experiment

Turn one image prompt and short script into a narrated MP4

Name: Narrated Post for Agents
Price: 0.02 USD
Availability: InStock

Send an image prompt and up to 500 characters of narration. Delx generates one still, synthesizes the voiceover, assembles a durable MP4 and returns component hashes plus a single-settlement composition receipt. The $0.02 validation SKU is reviewed on September 11, 2026; internal QA and crawlers do not count as demand.

x402narrated-postsocial-videoimage-to-videovoiceoverkokoroflux-schnell

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Use a reranker when ordering matters.

One settlement: The buyer pays $0.02 once; the image and speech legs never create hidden component charges.
Receipt-backed delivery: The response binds the MP4 hash, both component generation IDs, provider sources, component costs and refund decision.
Know the boundary: This creates one narrated still. It does not generate motion, edit footage, add captions or music, or publish to a social network.

One-command purchase

Run it from an agent.

No account or API key. AgentCash reads the 402 challenge, pays no more than the declared cap, retries the request and returns the result.

npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/narrated-post -m POST -H 'x-delx-source: product-page' --max-amount 0.02 -b '{"image_prompt":"A clean cobalt product card with a friendly autonomous agent","narration":"Meet the narrated launch asset your agent can buy and receive in one workflow.","aspect_ratio":"1:1","voice":"af_bella","speed":1,"quality_profile":"balanced"}'

InputPOST /api/v1/x402/narrated-post

{
  "image_prompt": "A clean cobalt product card with a friendly autonomous agent",
  "narration": "Meet the narrated launch asset your agent can buy and receive in one workflow.",
  "aspect_ratio": "1:1",
  "voice": "af_bella",
  "speed": 1,
  "quality_profile": "balanced"
}

Delivered resultapplication/json

{
  "format": "delx/narrated-post/v1",
  "generation_id": "ec591bb801bd4a6bb020229d7dd63f35",
  "video_url": "https://api.delx.ai/api/v1/generated-narrated-posts/ec591bb801bd4a6bb020229d7dd63f35.mp4",
  "image_url": "https://api.delx.ai/api/v1/generated-images/340337d68b9b40ac9835b94486b10d45.webp",
  "audio_url": "https://api.delx.ai/api/v1/generated-audio/a86320bd2ff843c38dad34a3ac068856.wav",
  "aspect_ratio": "1:1",
  "voice": "af_bella",
  "speed": 1,
  "media_type": "video/mp4",
  "duration_ms": 4200,
  "width": 1024,
  "height": 1024,
  "bytes": 288144,
  "sha256": "86a6255fc67284d1c82ed96d89a4a31065edb34a96f46847531fd782537f390f",
  "provider_source": "commercial_api",
  "composition_receipt": {
    "format": "delx/composition-receipt/v1",
    "composition_id": "ec591bb801bd4a6bb020229d7dd63f35",
    "tool_name": "narrated_post",
    "price_usdc": 0.02,
    "settlement_tx": "0x2a7f5e72",
    "facilitator": "payai",
    "payment_protocol": "x402",
    "legs": [
      {
        "tool_name": "generate_image_budget",
        "status": "succeeded",
        "generation_id": "340337d68b9b40ac9835b94486b10d45",
        "provider_source": "commercial_api",
        "upstream_cost_usd": 0.003,
        "sha256": "04f03dc8eb735baa9a953f5e69ef83855104f892765c63e81b4a93d55465a31a"
      },
      {
        "tool_name": "generate_speech",
        "status": "succeeded",
        "generation_id": "a86320bd2ff843c38dad34a3ac068856",
        "provider_source": "commercial_api",
        "upstream_cost_usd": 0.001,
        "sha256": "05db65e105be46a4ff8033f405fb108e9138d634c8cd3685cb97b74784eeb809"
      }
    ],
    "degraded_fields": [],
    "refund_decision": "not_required"
  },
  "upstream_cost_usd": 0.004,
  "sale_price_usdc": 0.02,
  "gross_margin_usd": 0.016,
  "gross_margin_pct": 80
}

Machine-readable evidence

Inspect before paying.

Direct answersMultilingual RAG reranking FAQ

Questions agents ask before buying.

What does the narrated post API return?

It returns a durable MP4 URL, the component image and audio URLs, dimensions, duration, SHA-256 hash, cost and margin fields, plus a two-leg composition receipt.

Is the image animated?

No. Version 1 displays one generated still image for the duration of the synthesized voiceover.

What happens if a component fails after payment?

A failed image, speech, or MP4 assembly enters the refund ledger; a successful durable MP4 reports refund_decision as not_required.

How much does one narrated MP4 cost?

A delivered result costs $0.02 USDC via x402. There is no account, API key, subscription, or separate component charge.