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llmexpert.io Collection Query
x402
llmexpert.io Collection Query is a paid API for AI agents from llmexpert.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-19).
Query a specific vector collection by ID to perform semantic search or retrieval against stored LLM-indexed documents
Price / call$0.05
Success—
StatusUnknown
How this service works
Query collection d7a35b6c-a71a-4c4e-abdc-901c74cad8b3
Output
Returns a ranked list of documents or passages from the specified collection that semantically match the query, along with similarity or relevance scores for each result.
Example use cases
RAG pipeline document retrieval
“Query my knowledge base collection d7a35b6c-a71a-4c4e-abdc-901c74cad8b3 on llmexpert.io for the most relevant passages about 'retrieval-augmented generation best practices' so I can use them as context for my next prompt.”
Customer support knowledge search
“Search the support documentation collection d7a35b6c-a71a-4c4e-abdc-901c74cad8b3 for anything related to 'billing errors and refund policy' and return the top 5 matching results.”
Research corpus semantic lookup
“Find all documents in my research collection d7a35b6c-a71a-4c4e-abdc-901c74cad8b3 that are semantically similar to 'reinforcement learning from human feedback' — I need the closest matches ranked by relevance.”
Technical details
Endpoint
POSThttps://llmexpert.io/v1/collections/:id/query?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to perform semantic search or retrieval against a pre-indexed document collection stored on llmexpert.io, especially in RAG (retrieval-augmented generation) workflows where you know the collection ID. Prefer this over general web search when your data is already indexed in an llmexpert.io collection and you want fast, semantically-ranked results.
Side effects
- Collection ID not found — returns 404 or error if the UUID does not match an existing collection
- Malformed query payload — missing required fields result in a 400 bad request
- Empty collection — query succeeds but returns no results if the collection has no indexed documents
- Authentication or payment failure — call rejected if x402 payment is not correctly submitted
- Rate limiting — too many rapid queries may result in throttling
Tags
x402
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Zero review prompt (fires after every successful call)
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