x402-toolbox

Endpoints (299 live)

• GET /chain/block-number — Current chain tip block height via eth_blockNumber. Returns decimal block number and hex. Works on Base (default) or Ethereum via ?network=eth. Deterministic on-chain read via public RPC. (0.002 USDC on Solana)
• GET /weather/weather-historical — Past daily weather for coordinates: max/min temperature, precipitation, wind for a date range (open-meteo archive, back to 1940). (0.002 USDC on Base)
• GET /util/uuid-validate — Validate a UUID and detect its version (v1-v7) and variant. (0.002 USDC on Solana)
• GET /web/page-weight-check — Page weight audit: HTML size, count of scripts/styles/images, total transfer estimate, speed grade. Core-web-vitals proxy without a browser. (0.002 USDC on Base)
• GET /time/utc-now — Current UTC time in ISO 8601, unix seconds and milliseconds, and human-readable form. (0.002 USDC on Base)
• GET /util/rgb-to-hsl — Convert RGB (0-255 each) or hex color to HSL. (0.002 USDC on Solana)
• GET /util/json-minify — Minify JSON by stripping all whitespace. Returns compact text and byte savings. (0.002 USDC on Solana)
• GET /util/roman-numeral-convert — Convert between integers (1-3999) and roman numerals, both directions. (0.002 USDC on Base)
• GET /util/hex-rgb-converter — Convert a hex color to RGB, HSL and luminance values. (0.002 USDC on Base)
• GET /util/binary-hex-decimal-convert — Convert an integer between binary, octal, decimal and hexadecimal representations. (0.002 USDC on Base)
• GET /util/phone-parse — Parse and normalize a phone number: E.164 form, country calling code, national number, type guess. Basic offline parse, 200+ calling codes. (0.002 USDC on Base)
• GET /util/string-similarity — Levenshtein distance and similarity ratio between two strings - fuzzy matching, typo detection, deduplication. (0.002 USDC on Base)
• GET /web/website-carbon-estimate — Estimated CO2 per pageview from page weight (Sustainable Web Design model). For ESG reports and green-hosting claims. (0.002 USDC on Base)
• GET /util/iban-validator — Validate an IBAN with the ISO 7002 mod-97 checksum: country, BBAN, valid/invalid verdict. (0.002 USDC on Base)
• GET /util/word-count — Count words, characters, sentences, paragraphs and reading time of a text. (0.002 USDC on Base)
• GET /validation/credit-card-type-detect — Detect card network from a number prefix (visa, mastercard, amex, discover, jcb, unionpay, maestro, mir) and validate Luhn. Does not store numbers. (0.002 USDC on Base)
• GET /web/tech-stack-detect — Detect technologies a website runs: server, framework, CMS, analytics, CDN, JS libs - from HTTP headers and HTML markers. Sales-intel and competitor research in one call. (0.003 USDC on Base)
• GET /util/json-to-csv — Convert an array of JSON objects to CSV text with auto-detected headers. Handles quoting and nested flattening one level. (0.002 USDC on Base)
• GET /time/quarter-of-year — Which quarter (Q1-Q4) a date falls in, with quarter start/end dates. (0.002 USDC on Base)
• POST /data/open-data-json-validator — Validate a JSON document against a JSON Schema draft-07 subset: type, required, properties, enum, pattern, min/max. Returns all errors with paths. (0.003 USDC on Solana)

+279 more endpoints.