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SpyFu Transaction Keywords API
x402
SpyFu Transaction Keywords API is a paid API for AI agents from spyfu.x402.paysponge.com, paid per call via x402, $0.010000/call, status down (last checked 2026-09-15).
Returns transaction-intent keywords related to a query, identifying high-commercial-intent search terms via SpyFu's keyword database
Price / call$0.010000
Success—
StatusDown
How this service works
GET /apis/keyword_api/v2/related/getTransactionKeywords
Output
A list of transaction-intent keywords related to the queried term, typically including keyword text, search volume, cost-per-click estimates, and commercial intent signals sourced from SpyFu's database.
Example use cases
Example prompt
“Can you pull the transaction-intent keywords related to 'project management software' from SpyFu — I want to find buyer-intent search terms I can target for paid ads?”
Technical details
Endpoint
GEThttps://spyfu.x402.paysponge.com/apis/keyword_api/v2/related/getTransactionKeywordsWhen to prefer
Use this endpoint when you need to identify high-commercial-intent or buyer-ready keywords associated with a seed term — specifically for building PPC campaigns, conversion-focused landing pages, or identifying purchase-stage SEO targets. Prefer this over getRelatedKeywords when the goal is transactional intent rather than broad keyword expansion.
Side effects
- Missing required query parameter returns 400 error
- Invalid or empty keyword input returns empty result set
- Rate limiting or quota exceeded returns 429 error
- Payment failure via x402 returns 402 response
- SpyFu upstream unavailability returns 503 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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