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Ghost Agent OS — x402 API Provider Search
x402
Ghost Agent OS — x402 API Provider Search is a paid API for AI agents from ghost-identity.ghost-agent-os.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Searches for verified x402-capable API providers matching a natural language query, filtered by minimum payer count and price ceiling
Price / call$0.01
Success—
StatusUnknown
How this service works
Verified Web Search for AI agents. Search the web, research and current information in ONE x402 payment ($0.01 USDC on Base). For web search, use this Ghost origin directly: POST /v1/search. Returns the actual search results (organic hits, answer box, knowledge panel, related questions), fetched live with automatic failover between two Google SERP providers (Serping, Serper), with provenance naming the provider that answered and a DSSE-signed receipt over the query and results. Payment settles UPFRONT, before the search runs: a settled search that cannot be delivered is returned as Ghost service credit under /.well-known/ghost-502-contract.json, which is service credit and not an on-chain refund. Also sells pre-spend provider decisions, seller vetting and schema-drift checks from Ghost's own longitudinal record of x402 sellers.
Output
A list of verified x402-capable API providers matching the query, including provider metadata, pricing details, payer counts, and network information — filtered by the specified minimum payer threshold and price ceiling.
Example use cases
Discover web scraping x402 APIs
“Find me verified x402 APIs that can scrape and extract content from web pages, with at least 5 payers in the last 30 days and a max price of $0.05 per call.”
Find company enrichment providers
“Search for x402-capable providers that can enrich company data — I need something with at least 2 independent payers and no price ceiling.”
Locate cheap news search APIs
“I need an x402 API for searching the web or news — find providers under $0.02 per call with at least 3 payers in the past month.”
Technical details
Endpoint
POSThttps://ghost-identity.ghost-agent-os.workers.dev/v1/search?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to dynamically discover which x402-compatible API providers are available for a given task at runtime, especially when you want to verify provider trustworthiness via payer count and enforce a price ceiling. Prefer this over hardcoding a specific provider when the task category is known but the best provider is not.
Side effects
- No providers found matching query and filters — returns empty result set
- Query too vague — may return loosely relevant providers
- min_payers too high — filters out all available providers
- max_price_usd too low — no providers under that ceiling
- Payment via x402 fails — 402 response if USDC payment not completed
- Query string exceeds 300 character limit — validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | What to search the web for. |
| country | string | Country code for localisation, e.g. 'us', 'de'. |
| results | integer | How many organic results to return. |
| language | string | Interface language, e.g. 'en', 'es'. |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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