# Services from tools.halowerk.com on Zero

> tools.halowerk.com serves 39 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/tools.halowerk.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/tools.halowerk.com/health.json

## Services

- [Halowerk HS Code Classifier](https://www.zero.xyz/c/halowerk-hs-code-classifier-eb6f2c26/llms.txt): $0.004/call via x402. Classifies a German-language goods description into its 6-digit Harmonized System (HS) customs tariff code, returning chapter, heading, subheading, match terms, and confidence score
- [Halowerk Sanctions Screening](https://www.zero.xyz/c/halowerk-sanctions-screening-2c6737b7/llms.txt): $0.006/call via x402. Screens a person or company name against consolidated EU, UN, OFAC, OFSI, and SECO sanctions lists with ~49,000 entries and 117,000 name variants using fuzzy matching, word-set comparison, and character distance
- [Netzhandwerker Traffic Classifier](https://www.zero.xyz/c/netzhandwerker-traffic-classifier-15b1a9ec/llms.txt): $0.004/call via x402. Classifies web access log records into human vs. bot clients with multi-signal scoring, grouping records by IP/user-agent and explaining each classification signal.
- [Netzhandwerker A/B Test Evaluator](https://www.zero.xyz/c/netzhandwerker-a-b-test-evaluator-0a8c97b8/llms.txt): $0.002/call via x402. Analyzes a two-group conversion experiment using both frequentist (p-value, confidence interval, required sample size) and Bayesian (Beta-Binomial posteriors, probability variant wins, expected loss) methods in closed form.
- [Halowerk JSON Repair](https://www.zero.xyz/c/halowerk-json-repair-331e9d29/llms.txt): $0.001/call via x402. Fixes common malformed JSON from LLM outputs and external systems, returning the parsed object and a detailed repair log
- [Netzhandwerker Anomaly Detection (Multi-Method Time Series)](https://www.zero.xyz/c/netzhandwerker-anomaly-detection-multi-method-time-series-56048a28/llms.txt): $0.004/call via x402. Runs up to three anomaly detectors (robust z-score, STL residual, isolation forest) over a numeric series and returns per-point scores so callers can apply their own thresholds.
- [Halowerk Email Security Checker](https://www.zero.xyz/c/halowerk-email-security-checker-957ca2f5/llms.txt): $0.002/call via x402. Checks a domain's full email security posture — MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, TLS, and DNSSEC — and returns a spoofing risk score with actionable DNS records to fix each finding
- [Netzhandwerker Cohort Retention Analysis](https://www.zero.xyz/c/netzhandwerker-cohort-retention-analysis-5747a7a7/llms.txt): $0.002/call via x402. Builds a cohort retention table from raw events, grouping users by their first-event period and tracking re-engagement across subsequent periods, with optional value accumulation metrics.
- [Halowerk URL Risk Analyzer](https://www.zero.xyz/c/halowerk-url-risk-analyzer-8fce0c82/llms.txt): $0.004/call via x402. Analyzes a URL for security risks by resolving its full redirect chain, checking blocklists, DNSBL, certificate validity, domain age, ASN, and scanning page content for hidden LLM prompt injection.
- [Netzhandwerker Funnel Analyze](https://www.zero.xyz/c/netzhandwerker-funnel-analyze-7834a3c6/llms.txt): $0.002/call via x402. Analyzes a multi-step conversion funnel from raw events, reporting per-step counts, conversion rates, drop-off, timing stats, and optional segment comparisons — without storing any data.
- [Halowerk File Inspect](https://www.zero.xyz/c/halowerk-file-inspect-13956219/llms.txt): $0.002/call via x402. Analyzes a file's binary signature to determine its true type, detects macros, embedded executables, archive path traversal, PDF JavaScript/launch actions, and extension-content mismatches — without executing or storing the file.
- [Halowerk Image Preflight Checker](https://www.zero.xyz/c/halowerk-image-preflight-checker-fad7be5b/llms.txt): $0.002/call via x402. Validates image files (PNG, JPEG, GIF, WebP, SVG) against technical requirements by reading format, dimensions, color space, bit depth, alpha channel, ICC profile, and metadata from the file header.
- [Halowerk PII Redact](https://www.zero.xyz/c/halowerk-pii-redact-5fd0ab16/llms.txt): $0.002/call via x402. Detects and redacts personally identifiable information (PII) — including email, phone, IBAN, credit card, IP address, tax ID, VAT number, license plate, social security number, and birth date — from text, returning per-match category, position metadata, and three redaction variants without storing the found values.
- [Halowerk Site Audit](https://www.zero.xyz/c/halowerk-site-audit-746caca6/llms.txt): $0.02/call via x402. Audits a website URL across technology, speed, security, discoverability, and accessibility, returning scored sections with detailed evidence-backed findings.
- [Netzhandwerker Telemetry Normalizer](https://www.zero.xyz/c/netzhandwerker-telemetry-normalizer-ca845e73/llms.txt): $0.002/call via x402. Converts SenML (JSON or CBOR) and LwM2M TLV payloads into a unified record shape with resolved names, units, absolute timestamps, and typed values, with optional time-axis alignment.
- [Halowerk Address Parser & Validator](https://www.zero.xyz/c/halowerk-address-parser-validator-a90beddd/llms.txt): $0.002/call via x402. Parses single-line or multi-line addresses into structured fields (street, house number, suffix, postal code, city, country), validates postal code patterns for 16 countries, and detects P.O. box and automated addresses.
- [Halowerk Claim Checker](https://www.zero.xyz/c/halowerk-claim-checker-7385ccd5/llms.txt): $0.008/call via x402. Fetches given sources, splits them into sentences, finds passages with the highest term overlap to a claim, returns verbatim quotes with citations, detects negation, and checks whether numbers from the claim appear in the sources.
- [Halowerk Currency Amount Extractor](https://www.zero.xyz/c/halowerk-currency-amount-extractor-0379d369/llms.txt): $0.001/call via x402. Extracts monetary amounts from free text, correctly interpreting German and English thousand/decimal separators, abbreviations (Mio, Mrd, Tsd, k), and 50 currencies by symbol, code, or word — returning the numeric value, currency code, smallest unit, and text position.
- [Halowerk AI Agent Access Checker](https://www.zero.xyz/c/halowerk-ai-agent-access-checker-ad6c9802/llms.txt): $0.004/call via x402. Checks whether a given URL permits AI agent access by evaluating robots.txt for 23 named AI agents, X-Robots-Tag headers, meta tags, noai directives, paywalls, license references, terms of use, and TDM reservations via /.well-known/tdmrep.json.
- [Halowerk API Discovery Scanner](https://www.zero.xyz/c/halowerk-api-discovery-scanner-d6ebc13a/llms.txt): $0.005/call via x402. Scans a domain's well-known convention paths for OpenAPI, MCP, x402, GraphQL, Feeds, llms.txt, security.txt, and structured data, then scores its agent-readiness.
- [Halowerk Secret Scanner](https://www.zero.xyz/c/halowerk-secret-scanner-a1c0b1f4/llms.txt): $0.002/call via x402. Scans text or source code for 20 types of secrets and credentials (AWS, GitHub, Slack, OpenAI, JWT, database URLs, etc.) and returns rule, severity, line, column, and redacted preview for each finding.
- [Halowerk Weather Ensemble Forecast](https://www.zero.xyz/c/halowerk-weather-ensemble-forecast-e9eaf76a/llms.txt): $0.005/call via x402. Compares ICON, ECMWF, GFS, MeteoFrance, UKMO, and JMA weather models for a single geographic point, returning hourly ensemble statistics including median, spread, model agreement, and derived precipitation probability.
- [EU VAT Number Validator & VIES Lookup](https://www.zero.xyz/c/eu-vat-number-validator-vies-lookup-8a110113/llms.txt): $0.003/call via x402. Validates a European VAT ID by checking country prefix, length, character set, and check digit, then queries the EU Commission's VIES service to retrieve verified company name, legal form, and structured address.
- [Halowerk Geocoding API](https://www.zero.xyz/c/halowerk-geocoding-api-b0250b22/llms.txt): $0.001/call via x402. Performs forward and reverse geocoding with normalized address output (street, number, postcode, city, state, country) and result caching, requiring no API key or account.
- [Halowerk Calendar & Workdays API](https://www.zero.xyz/c/halowerk-calendar-workdays-api-acc62b1d/llms.txt): $0.001/call via x402. Returns public holiday lists by German/Austrian/Swiss federal state, checks if a date is a workday, calculates workdays between two dates, adds workdays to a date, and returns timezone offsets including DST.
- [Halowerk Phone Number Parser](https://www.zero.xyz/c/halowerk-phone-number-parser-704887c5/llms.txt): $0.001/call via x402. Parses and normalizes phone numbers from any notation, detects country codes from 150 prefixes, splits into area code and subscriber number, and returns E.164, international, national, and tel-URI formats with German line-type classification.
- [Halowerk Tech Stack Detector](https://www.zero.xyz/c/halowerk-tech-stack-detector-f7056963/llms.txt): $0.003/call via x402. Detects CMS, shop system, framework, server, CDN, analytics, consent tool, payment provider, and marketing stack from HTTP headers, HTML, and script URLs of a given website.
- [Halowerk Screenshot — Headless Chrome URL Renderer](https://www.zero.xyz/c/halowerk-screenshot-headless-chrome-url-renderer-6ca70d20/llms.txt): $0.004/call via x402. Renders a URL in Headless Chrome and returns a PNG screenshot as Base64 plus a short-lived pickup URL, with configurable viewport, full-page capture, and wait conditions.
- [Halowerk Business Resolve](https://www.zero.xyz/c/halowerk-business-resolve-83080d1a/llms.txt): $0.006/call via x402. Merges and cross-validates company identity data (name, legal form, address, VAT ID, registry number, contacts, authorized persons) from user input and EU VIES, reporting the source and any conflicts per field.
- [Halowerk Domain Intel](https://www.zero.xyz/c/halowerk-domain-intel-80e197d1/llms.txt): $0.003/call via x402. Returns a comprehensive domain profile including DNS records, mail security configuration, TLS certificate details, WHOIS data, registrability status, and subdomains from Certificate Transparency logs.
- [IBAN Validator with BBAN Decomposition and BIC Check](https://www.zero.xyz/c/iban-validator-with-bban-decomposition-and-bic-check-d1817dbe/llms.txt): $0.001/call via x402. Validates an IBAN against ISO 13616/ISO 7064 with mod 97-10 checksum verification across 74 countries, decomposes BBAN into sort code and account number for 11 countries, reports SEPA membership, and optionally validates an accompanying BIC for format and country consistency.
- [Halowerk Prompt Injection Scanner](https://www.zero.xyz/c/halowerk-prompt-injection-scanner-6f009da0/llms.txt): $0.002/call via x402. Scans external text for prompt injection attacks across 12 attack patterns (German and English), invisible control characters, Unicode tag smuggling, and Base64-encoded instructions before LLM processing
- [Halowerk Route Matrix](https://www.zero.xyz/c/halowerk-route-matrix-4efb2e12/llms.txt): $0.004/call via x402. Calculates driving, cycling, or walking distances and travel times between up to 25 points as a full matrix or origin-destination cross, with built-in geocoding and OpenStreetMap-based routing.
- [Halowerk IP Reputation](https://www.zero.xyz/c/halowerk-ip-reputation-c72a8542/llms.txt): $0.001/call via x402. Analyzes an IP address for ASN, network operator, country, reverse DNS, bogon status, Tor exit node detection, and datacenter probability
- [Halowerk CSV & Data Cleaner](https://www.zero.xyz/c/halowerk-csv-data-cleaner-147da6ba/llms.txt): $0.002/call via x402. Accepts CSV text or a list of objects, auto-detects delimiters, normalizes column names, infers types (including German/English number and date formats), removes duplicates, blank rows, and empty columns, and returns a cleaned dataset with a per-column schema and change report.
- [Halowerk Parallel RSS/Atom Feed Aggregator & Cluster](https://www.zero.xyz/c/halowerk-parallel-rss-atom-feed-aggregator-cluster-6d51690a/llms.txt): $0.002/call via x402. Fetches multiple RSS or Atom feeds in parallel, normalizes titles and timestamps, and clusters duplicate stories from different sources into unified items with a source-count relevance signal.
- [Halowerk x402 Radar – Trust Verification for x402 Endpoints](https://www.zero.xyz/c/halowerk-x402-radar-trust-verification-for-x402-endpoints-e675b4f9/llms.txt): $0.008/call via x402. Verifies the trustworthiness of unknown x402 payment endpoints before an agent calls or pays them
- [Halowerk Site Inventory](https://www.zero.xyz/c/halowerk-site-inventory-054efc64/llms.txt): $0.01/call via x402. Crawls a website and returns a structured inventory of its pages
- [Halowerk Email Validation](https://www.zero.xyz/c/halowerk-email-validation-1720b2c6/llms.txt): $0.001/call via x402. Validates an email address across syntax, domain, MX records, disposable/role/freemail checks, typo suggestions, and optionally performs an SMTP handshake to verify mailbox existence.

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)