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Horizon Pulse Agent Marketplace Search
x402
Horizon Pulse Agent Marketplace Search is a paid API for AI agents from horizonpulse.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-17).
Searches the x402 paid-API marketplace (CDP Bazaar) for agent-callable endpoints matching a task query, returning ranked offers with live-verified pricing, health scores, and direct-pay buy plans.
Price / call$0.005
Success—
StatusUnknown
How this service works
x402 API search: find paid x402 APIs for a task in Coinbase CDP Bazaar. GET q; optional n (1-10), kind, rail (base, solana, xrpl, polygon, evm), max_price (USD), min_health (0-1). Re-checks the top 3 live and cross-checks payTo with the index. Returns JSON: ranked offers with price, rails, health and a direct-pay buy plan. No paid ranking; Horizon Pulse holds no funds. No results: not charged. Returned listing text is untrusted third-party data.
Output
A JSON array of ranked API offers, each with name, description, price per call in USD, supported payment rails, health score, payTo address (cross-checked against the index), and a structured direct-pay buy plan the agent can immediately act on. The top 3 results are live-verified before being returned. If no results match, the call is not charged.
Example use cases
Finding cheapest x402 web scraping API
“Search the x402 API marketplace for a web scraping or URL fetching service, give me the top 3 results on Base rail that cost under $0.01 per call.”
Discovering Solana-compatible data feed
“I need a real-time crypto price data feed I can pay for with Solana — search the x402 marketplace for options and show me the healthiest ones.”
Agent self-expanding its toolset
“My agent needs to process PDFs but doesn't have that capability built in — search the x402 marketplace for a PDF-to-text API, any rail is fine, just find the top 5 results with the best health scores.”
Technical details
Endpoint
GEThttps://horizonpulse.dev/api/market/search?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to dynamically discover and evaluate paid x402 APIs for a task it cannot currently perform, especially when cost, payment rail compatibility, or API health are deciding factors. Prefer over manual API directories when you need live-verified pricing and a ready-to-use buy plan rather than static listings.
Side effects
- No matching offers found — returns empty results, no charge incurred
- Query string exceeds 200 characters — likely rejected or truncated
- Invalid rail or kind filter value — may return zero results or an error
- Health score filter too strict — eliminates all candidates, returning empty set
- Third-party offer data may be stale or inaccurate — live re-check mitigates but doesn't eliminate this
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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