# Services from creator.halowerk.com on Zero

> creator.halowerk.com serves 10 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/creator.halowerk.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/creator.halowerk.com/health.json

## Services

- [Halowerk Trend-Hijack Relevance & Brand Safety Screener](https://www.zero.xyz/c/halowerk-trend-hijack-relevance-brand-safety-screener-cc49f995/llms.txt): $0.003/call via x402. Tokenizes campaign keywords and trend keywords, calculates keyword overlap to score trend relevance, and flags any blocked brand-safety keywords.
- [Halowerk Royalty Split Calculator](https://www.zero.xyz/c/halowerk-royalty-split-calculator-8351b053/llms.txt): $0.002/call via x402. Splits a total monetary amount (in minor currency units) among named recipients according to basis-point shares, using floor-and-remainder distribution to ensure exact allocation with no rounding loss.
- [Halowerk Thumbnail CTR Bayesian Ranker](https://www.zero.xyz/c/halowerk-thumbnail-ctr-bayesian-ranker-b5a639f4/llms.txt): $0.003/call via x402. Updates a shared Beta prior with per-variant click and impression data, then returns posterior means, 95% credible intervals, and a ranking of thumbnail variants by estimated click-through rate.
- [Halowerk Creator Text Watermark Embedder](https://www.zero.xyz/c/halowerk-creator-text-watermark-embedder-83843147/llms.txt): $0.003/call via x402. Inserts a visible text marker at regular word intervals into a body of text, normalizes whitespace, and returns source and output digests for verification.
- [Halowerk Music Interval N-gram Jaccard Similarity](https://www.zero.xyz/c/halowerk-music-interval-n-gram-jaccard-similarity-a83dc36c/llms.txt): $0.004/call via x402. Converts two MIDI note sequences to pitch-interval n-grams and computes their Jaccard similarity score
- [Halowerk Ad Placement Optimizer](https://www.zero.xyz/c/halowerk-ad-placement-optimizer-8f10d8b8/llms.txt): $0.004/call via x402. Solves the weighted non-overlapping interval scheduling problem on caller-supplied ad placements using dynamic programming, returning the optimal subset maximizing total value.
- [Halowerk VTuber Rigging Weight Smoother](https://www.zero.xyz/c/halowerk-vtuber-rigging-weight-smoother-2193c64c/llms.txt): $0.004/call via x402. Validates frame/channel dimensions, clamps blend-shape weights to 0–1, and applies exponential temporal smoothing across named animation channels over a sequence of timestamped frames.
- [Halowerk Fan Engagement Scorer](https://www.zero.xyz/c/halowerk-fan-engagement-scorer-9b9166ee/llms.txt): $0.003/call via x402. Computes weighted engagement points per thousand reached accounts (EPM) for one or more audience cohorts, given raw interaction counts and reach.
- [Halowerk Deepfake Score Calculator](https://www.zero.xyz/c/halowerk-deepfake-score-calculator-3bcb43f1/llms.txt): $0.003/call via x402. Computes a weighted deepfake likelihood score by normalizing caller-supplied blink deviation, lip-sync error, spectral discontinuity, compression inconsistency, and metadata anomaly signals using fixed weights.
- [Halowerk Voice Clone Check — Embedding Similarity Scorer](https://www.zero.xyz/c/halowerk-voice-clone-check-embedding-similarity-scorer-2b1cfd2a/llms.txt): $0.003/call via x402. Computes a weighted similarity score between two numeric voice embeddings combined with caller-supplied spectral distance, pitch-contour correlation, and timing distance to produce a composite voice-match score.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)