denk.halowerk.com

Checks and payment terms on this page refer to the first endpoint's example. Other endpoints have not been checked individually.

Base URLhttps://denk.halowerk.com/v1

• POST/hybrid-search$0.005Ranks up to 100 supplied documents twice: lexically with BM25 (same implementation and defaults as bm25-search) and semantically by cosine similarity of embeddings computed locally (multilingual: intfloat/multilingual-e5-small, MIT, with the required "query: "/"passage: " prefixes, truncation at 512 tokens; english: sentence-transformers/all-MiniLM-L6-v2, Apache-2.0, truncation at 256 word pieces; mean pooling and L2 normalization, int8 ONNX exports from the model repositories, pinned and…
  Example

  curl -i -X POST 'https://denk.halowerk.com/v1/hybrid-search' \
    -H 'Content-Type: application/json' \
    -d '{"query":"Wie hoch ist die Mehrwertsteuer?","documents":["Der allgemeine Umsatzsteuersatz in Deutschland beträgt 19 Prozent.","Die Hauptstadt ist Berlin."]}'

• POST/rag-metrics$0.004All metrics are defined in the response. With relevant_ids: precision@k and recall@k over the first k contexts, MRR, average precision and nDCG@k with binary relevance and log2 discount. Without relevant_ids, a context counts as relevant when it supports the reference (or the question if no reference) at or above the threshold; context precision = mean of precision@i over relevant positions (rank-weighted, as in RAGAS but without an LLM judge).
  Example

  curl -i -X POST 'https://denk.halowerk.com/v1/rag-metrics' \
    -H 'Content-Type: application/json' \
    -d '{"answer":"The Eiffel Tower is in Paris.","contexts":["The Eiffel Tower is a landmark in Paris, completed in 1889.","Berlin is the capital of Germany."],"question":"Where is the Eiffel Tower?"}'

• POST/rerank$0.005Scores every (query, passage) pair with a cross-encoder run locally through transformers.js/ONNX Runtime and sorts by the model logit; relevance is the logistic sigmoid of the logit. multilingual: cross-encoder/mmarco-mMiniLMv2-L12-H384-v1 (Apache-2.0, trained on mMARCO: en, ar, zh, nl, fr, de, hi, id, it, ja, pt, ru, es, vi). english: cross-encoder/ms-marco-MiniLM-L6-v2 (Apache-2.0, MS MARCO, English only).
  Example

  curl -i -X POST 'https://denk.halowerk.com/v1/rerank' \
    -H 'Content-Type: application/json' \
    -d '{"query":"Wie hoch ist die Mehrwertsteuer in Deutschland?","passages":["Der allgemeine Umsatzsteuersatz beträgt 19 Prozent.","Berlin ist die Hauptstadt."]}'

• POST/x402-spend-report$0.003Queries Transfer events from the wallet on Base mainnet via public RPC in 10,000-block windows and sums them by recipient and by UTC day. Timestamps are derived from block numbers using the fixed 2-second Base block time, anchored at the latest block (or at to_block for a fixed historical window). Covers token transfers only (no ETH gas). Useful for checking what an autonomous agent actually paid for x402 calls.
  Example

  curl -i -X POST 'https://denk.halowerk.com/v1/x402-spend-report' \
    -H 'Content-Type: application/json' \
    -d '{"hours":24,"wallet":"0x7406ca907cf8fd39a6ecfffa8e1be71c103fdb83"}'

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