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PayWeave Retrieval Rerank
x402
PayWeave Retrieval Rerank is a paid API for AI agents from retrieval.payweave.services, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Reranks a list of candidate documents by relevance to a search query using Cloudflare Workers AI
Price / call$0.001
Success—
StatusUnknown
How this service works
Text embeddings and reranking on Cloudflare Workers AI.
Output
An array of documents ordered by descending relevance score, each including the original document text, its index in the input array, and a numerical relevance score — making it easy to identify and extract the most relevant results.
Example use cases
Example prompt
“I have a user query 'what are the side effects of ibuprofen' and 20 candidate passages I pulled from a knowledge base — can you rerank them by relevance to the query and return just the top 5?”
Technical details
Endpoint
POSThttps://retrieval.payweave.services/rerankWhen to prefer
Use this endpoint when you need a pay-per-call, low-cost reranker backed by Cloudflare's global edge network without managing your own infrastructure. Ideal for RAG pipelines needing fast cross-encoder style reranking of up to 50 candidate passages. Prefer this over embedding-only similarity when you need a more accurate relevance signal for a specific query.
Side effects
- More than 50 documents submitted — API rejects with validation error
- Query or individual document exceeds 2000 characters — truncation or rejection
- Empty documents array — required field missing, 400 error
- Service unavailable on Cloudflare Workers AI backend — 5xx response
- Payment not included or insufficient — 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| queryrequired | string | The search query. Up to 2000 characters. |
| top_k | integer | Return only the top K highest-scoring documents. Defaults to all, ranked. |
| documentsrequired | array | Candidate documents to score against the query. 1-50 items, each up to 2000 characters. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| resultsrequired | array | Documents ordered by descending relevance score |
Tags
x402
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