# AdPrompt x402 Marketing & Advertising APIs

> AdPrompt x402 Marketing & Advertising APIs is a free API for AI agents from www.adprompt.ai, Free, status unknown (last checked 2026-09-15).

Pay-per-request advertising and marketing AI API covering brand analysis, strategy, budget allocation, ad creatives, A/B variants, ad copy, and brand asset generation with x402 stablecoin payment settlement

## Facts

- Endpoint: POST https://www.adprompt.ai/x402-api
- Price: Free
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 2
- Tags: x402
- Canonical page: https://www.zero.xyz/c/adprompt-x402-marketing-advertising-apis-cbc896c0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__yKdrH-iH1BIlu1bCS2hW

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability adprompt-x402-marketing-advertising-apis-cbc896c0 -d '<json body>'
```

Example prompt: Can you use AdPrompt to generate image ad creatives and A/B copy variants for my brand 'NovaBrew Coffee' — we're targeting millennial coffee lovers, the campaign goal is app downloads, and our monthly budget is $5,000?

## When to prefer this

Choose this endpoint when an AI agent needs to programmatically generate advertising creatives, marketing strategies, or brand assets on demand without a subscription — especially when automated pay-per-call billing via x402/stablecoin is required. Ideal for agentic workflows that need to produce ad copy, creative variants, or brand analysis at inference time and want metered, per-request pricing rather than a flat SaaS plan.

## Known failure modes

- 402 Payment Required returned if stablecoin payment not settled — agent must complete x402 micropayment flow to unlock response
- Invalid or missing brand/campaign inputs may result in low-quality or generic outputs
- Unsupported ad format or creative type may return an error or empty result
- Network or payment settlement timeout causing failed request
- Insufficient USDC balance preventing payment settlement

## How this service works

x402-enabled endpoints from AdPrompt.Ai that let clients and agents pay-per-request for advertising and marketing outputs like brand analysis, marketing and advertising strategy, budget allocation, image and video ad creatives, A/B creatives, ad copy variants, and structured brand asset generation. Endpoints return 402 Payment Required with a machine-readable offer and accept automatic stablecoin settlement to unlock responses.

## Output

Returns advertising and marketing outputs such as brand analysis reports, marketing and advertising strategy documents, budget allocation breakdowns by channel, image or video ad creative files, multiple A/B creative variants, ad copy variants, and structured brand asset packages — unlocked after automatic stablecoin (USDC) micropayment settlement via the x402 protocol.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/adprompt-x402-marketing-advertising-apis-cbc896c0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.adprompt.ai](https://www.zero.xyz/host/www.adprompt.ai/llms.txt)