# Services from keyronne.com on Zero

> keyronne.com serves 30 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/keyronne.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/keyronne.com/health.json

## Services

- [Keyronne Multi-Stop Route Planner](https://www.zero.xyz/c/keyronne-multi-stop-route-planner-3fb37227/llms.txt): $0.01/call via x402, rated 5.0/5 (1 review). Calculates point-to-point directions for 2–10 stops by car, bike, or foot, returning total and per-leg distance, travel time, and encoded polyline geometry using OpenStreetMap data.
- [Keyronne JSON Repair](https://www.zero.xyz/c/keyronne-json-repair-e82a64fb/llms.txt): $0.001/call via x402, rated 4.7/5 (1 review). Repairs malformed JSON text (from LLM output or other sources) into valid parsed JSON, returning the corrected value plus a log of all repairs applied.
- [Keyronne Math & Stats API](https://www.zero.xyz/c/keyronne-math-stats-api-c1b40838/llms.txt): $0.001/call via x402. Deterministically evaluates arithmetic expressions, converts between 80+ units, and computes descriptive statistics over large datasets
- [Keyronne JSON Schema Validator & LLM Output Coercer](https://www.zero.xyz/c/keyronne-json-schema-validator-llm-output-coercer-aa2e280e/llms.txt): $0.001/call via x402. Validates a JSON value against a JSON Schema and automatically coerces common LLM output mistakes (numbers as strings, stringified booleans, missing defaults, extra properties) before returning a corrected value and structured error report.
- [Keyronne Secret Generator](https://www.zero.xyz/c/keyronne-secret-generator-5917a898/llms.txt): $0.001/call via x402. Generates cryptographic secrets using CSPRNG randomness: random bytes, passwords, pronounceable strings, UUIDs, prefixed API keys, TOTP seeds, and asymmetric keypairs (Ed25519, P-256, RSA-2048) in PEM/JWK format
- [Keyronne Datetime Conversion & Arithmetic API](https://www.zero.xyz/c/keyronne-datetime-conversion-arithmetic-api-3e9abb53/llms.txt): $0.001/call via x402. Converts ISO or Unix timestamps across IANA timezones, adds/subtracts durations, and diffs two instants with humanized output — or returns current time if no datetime is supplied.
- [Keyronne Color Parser & WCAG Contrast Checker](https://www.zero.xyz/c/keyronne-color-parser-wcag-contrast-checker-97f948b5/llms.txt): $0.001/call via x402. Parses any CSS color format (hex, rgb, hsl), converts between all three, computes relative luminance, checks WCAG AA/AAA contrast ratios against a background, and supports lighten, darken, and color mixing.
- [Keyronne Chain Transaction Lookup](https://www.zero.xyz/c/keyronne-chain-transaction-lookup-760573c1/llms.txt): $0.003/call via x402. Look up an EVM transaction and its receipt by hash on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain, returning status, addresses, value, block, gas, and more.
- [keyronne.com Weather Forecast API](https://www.zero.xyz/c/keyronne-com-weather-forecast-api-0370eddc/llms.txt): $0.005/call via x402. Returns current conditions plus hourly and daily forecasts for any location on Earth, given a city name or lat/lon coordinates, using MET Norway data.
- [Keyronne IBAN Validator](https://www.zero.xyz/c/keyronne-iban-validator-dfede710/llms.txt): $0.001/call via x402. Validates IBAN structure and ISO 7064 mod-97 checksum, returning country, check digits, and BBAN for single or batch (up to 50) IBANs
- [Keyronne Text Chunker](https://www.zero.xyz/c/keyronne-text-chunker-47713c5c/llms.txt): $0.002/call via x402. Splits long text into retrieval-ready chunks along paragraphs, sentences, markdown sections, or fixed character boundaries, returning character offsets and approximate token counts per chunk.
- [Keyronne Web-to-Markdown Converter](https://www.zero.xyz/c/keyronne-web-to-markdown-converter-52337bb3/llms.txt): $0.005/call via x402. Fetches a web page by URL or converts raw HTML into clean, LLM-ready Markdown with structured metadata (title, description, OG tags, canonical URL, language)
- [Keyronne Chain Gas Price API](https://www.zero.xyz/c/keyronne-chain-gas-price-api-eb14fd05/llms.txt): $0.003/call via x402. Returns current gas price and EIP-1559 fee suggestions (base fee, priority tip, max fee) in gwei for Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain
- [Keyronne Geocoding API](https://www.zero.xyz/c/keyronne-geocoding-api-6967d8d1/llms.txt): $0.003/call via x402. Forward and reverse geocoding using OpenStreetMap data — converts place names or addresses to coordinates, or lat/lon to nearest address, with up to 10 ranked results.
- [keyronne.com Book ISBN Lookup](https://www.zero.xyz/c/keyronne-com-book-isbn-lookup-8cdf145a/llms.txt): $0.004/call via x402. Look up book metadata by ISBN (10 or 13 digit), returning title, authors, publishers, publish date, page count, subjects, and cover image from Open Library
- [Keyronne Payment Card Validator](https://www.zero.xyz/c/keyronne-payment-card-validator-81c14a1f/llms.txt): $0.001/call via x402. Validates payment card numbers via Luhn checksum and detects the card network (Visa, Mastercard, Amex, Discover, etc.) with per-network length rules, returning network name, Luhn result, and last four digits.
- [Keyronne Crypto Price Lookup](https://www.zero.xyz/c/keyronne-crypto-price-lookup-297edf57/llms.txt): $0.003/call via x402. Fetches current USD prices for up to 25 crypto assets per call, supporting major tickers, CoinGecko IDs, and chain+contract addresses for long-tail tokens, with per-asset confidence scores and timestamps.
- [keyronne.com CSV↔JSON Converter](https://www.zero.xyz/c/keyronne-com-csv-json-converter-9d8f9ef1/llms.txt): $0.002/call via x402. Converts CSV text to JSON rows or JSON rows back to CSV, with RFC 4180 parsing, automatic delimiter detection, and type coercion.
- [Keyronne DNS-over-HTTPS Resolver](https://www.zero.xyz/c/keyronne-dns-over-https-resolver-3413092b/llms.txt): $0.002/call via x402. Resolves DNS records (A, AAAA, MX, TXT, NS, CNAME, SOA, CAA, SRV, PTR, DS, DNSKEY, HTTPS) for a domain, returning parsed answers with TTLs and response status.
- [Keyronne Email Validator](https://www.zero.xyz/c/keyronne-email-validator-db522857/llms.txt): $0.003/call via x402. Validates email addresses with RFC syntax checks, MX/DNS lookups, disposable-domain detection, role-address detection, free-provider flagging, and typo suggestions — single or batch up to 50.
- [Keyronne Encode/Decode API](https://www.zero.xyz/c/keyronne-encode-decode-api-67c8148e/llms.txt): $0.001/call via x402. Encodes and decodes text across base64, base64url, hex, URL-encoding, and HTML entities (UTF-8 safe), and decodes JWTs into readable header/payload with human-readable timestamps.
- [Keyronne ERC-20 Token Metadata Lookup](https://www.zero.xyz/c/keyronne-erc-20-token-metadata-lookup-53ff03b6/llms.txt): $0.003/call via x402. Fetches ERC-20 token metadata (name, symbol, decimals, total supply) and optionally a wallet's token balance for any token contract across Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain
- [Keyronne Chain Balance](https://www.zero.xyz/c/keyronne-chain-balance-16e94d34/llms.txt): $0.003/call via x402. Fetches native coin and ERC-20 token balances for any wallet address on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain
- [Keyronne Chain Block Header Lookup](https://www.zero.xyz/c/keyronne-chain-block-header-lookup-21311cb2/llms.txt): $0.003/call via x402. Fetch block header details (timestamp, miner, gas used/limit, base fee, tx count, size) by block number, hash, or 'latest' on major EVM chains
- [Keyronne Cryptographic Hash & HMAC API](https://www.zero.xyz/c/keyronne-cryptographic-hash-hmac-api-70d3d456/llms.txt): $0.001/call via x402. Computes cryptographic digests (MD5, SHA-1, SHA-256, SHA-384, SHA-512) and HMACs over input text, returning results as hex, base64, or base64url.
- [keyronne.com IP Address Inspector & Subnet Calculator](https://www.zero.xyz/c/keyronne-com-ip-address-inspector-subnet-calculator-6220a0da/llms.txt): $0.001/call via x402. Inspect IPv4/IPv6 addresses (version, classification, integer form) and perform CIDR subnet math (network, netmask, broadcast, host range) or test address containment, all deterministically with no external lookups.
- [Keyronne Phone Number Validator](https://www.zero.xyz/c/keyronne-phone-number-validator-1ac8a50e/llms.txt): $0.001/call via x402. Validates and parses phone numbers in E.164 format, extracting country calling code, region, national number, and canonical E.164 string — single or batch up to 50
- [keyronne.com Text Diff API](https://www.zero.xyz/c/keyronne-com-text-diff-api-dbad3dd4/llms.txt): $0.002/call via x402. Compares two texts using Myers diff algorithm over lines, words, or characters, returning structured edit operations, unified diff output, and similarity statistics.
- [Keyronne Text Similarity & Clustering](https://www.zero.xyz/c/keyronne-text-similarity-clustering-3536e46f/llms.txt): $0.002/call via x402. Computes pairwise character n-gram cosine similarity across a batch of 2–300 texts, returning similar pairs above a threshold, connected-component clusters, and a full similarity matrix.
- [Keyronne Wikipedia Search & Article Summary API](https://www.zero.xyz/c/keyronne-wikipedia-search-article-summary-api-d27819dc/llms.txt): $0.003/call via x402. Search Wikipedia across 300+ language editions for ranked results or fetch a single article's summary, description, and thumbnail via the official MediaWiki API.

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

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