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API Direct – AI Mode Web Search (POST-style JSON body)
x402
API Direct – AI Mode Web Search (POST-style JSON body) is a paid API for AI agents from x402.apidirect.io, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-28).
Submits a conversational AI Mode prompt to a Google-powered AI search and returns an AI-generated answer with supporting sources, using a JSON body instead of query string parameters.
Price / call$0.006
Success—
StatusUnknown
How this service works
Same behaviour as GET /v1/web/ai-mode, with the parameters sent as a JSON body instead of query string parameters.
Output
Returns an AI-generated natural language answer synthesizing information from across the web, along with cited sources, rankings, and optionally a new session_token for continuing the conversation in subsequent calls.
Example use cases
Research question with AI synthesis
“Use AI Mode search to answer 'What caused the 2008 financial crisis and what reforms followed?' — I want an AI-synthesized summary with sources, in English for the US.”
Multi-turn follow-up in AI conversation
“Continue my AI Mode search session using this token and ask as a follow-up: 'How does that compare to the Great Depression?'”
Country-specific localized search
“Search AI Mode with the prompt 'What are the current tax brackets for individuals?' targeting France (country code fr) and return results in French (fr).”
Technical details
Endpoint
GEThttps://x402.apidirect.io/v1/web/ai-mode?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need an AI-synthesized, conversational answer from Google's AI Mode search rather than a raw list of links — especially for complex or multi-part questions where a summarized response with cited sources is more useful than organic search results. Prefer the JSON body variant (this endpoint) when constructing requests programmatically and a structured body is more convenient than URL-encoded query parameters. Use the sibling GET endpoint instead if you prefer query string parameters.
Side effects
- 400 Bad Request if country or language code is not exactly 2 characters
- 400 Bad Request if prompt exceeds 12,000 characters
- 402 Payment Required if the x402 payment header is missing or invalid
- Invalid session_token causes context loss or session reset
- Prompt that violates content policy may return empty or filtered result
- Rate limiting or upstream Google AI Mode unavailability returns 5xx
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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