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AdPrompt Content Suggestion API
x402
AdPrompt Content Suggestion API is a paid API for AI agents from x402.adprompt.io, paid per call via x402, $0.5/call, status unknown (last checked 2026-10-12).
Suggests contextually relevant ad content or promotional bundles using the AdPrompt engine, paid via x402 micropayment protocol at $0.50 USDC per call
Price / call$0.5
Success—
StatusUnknown
How this service works
Public x402 API for the full AdPrompt engine and bundle catalog. Paid endpoints return an x402 v2 402 challenge until a valid payment is supplied.
Output
Returns a suggested ad or content bundle from the AdPrompt engine, including creative copy, targeting metadata, and bundle details matched to the input context. The response is gated behind an x402 v2 payment challenge requiring a valid $0.50 USDC payment before the suggestion payload is delivered.
Example use cases
Monetizing AI-generated blog content
“My blog just published a post about sustainable travel — can you pull an AdPrompt content suggestion that matches that topic so I can display a relevant sponsored bundle to my readers?”
In-app ad recommendation for mobile game
“I'm building a casual mobile game and need AdPrompt to suggest a contextually relevant ad bundle for players who just finished a level — something engaging and non-intrusive.”
Agent-driven ad placement for newsletter
“I run a weekly fintech newsletter and want AdPrompt to recommend a sponsored content suggestion based on the theme 'crypto portfolio management' so I can include a paid placement this week.”
Technical details
Endpoint
POSThttps://x402.adprompt.io/v1/content/suggest?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need AI-matched, contextually relevant ad or content bundle suggestions and can handle x402 micropayment flows. It is best suited for agents or platforms that already support x402 payment headers and want pay-per-call ad targeting without a subscription or API key contract. Prefer this over traditional ad APIs when you need programmatic, prompt-driven content suggestions at small scale with crypto-native payment rails.
Side effects
- 402 Payment Required — returned before any content is delivered if no valid x402 payment header is present
- Invalid or expired payment token — x402 challenge fails and no content is returned
- Malformed POST body — missing required context or prompt fields causes a 400 error
- No matching bundle — engine returns empty or low-confidence suggestions for highly niche prompts
- Network timeout — slow payment resolution or backend latency causes request to fail
Tags
x402
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