Keccak hash, keccak256 x402 REST usage
Keccak hash, keccak256. Keccak-256 hash (the Ethereum hash) of text or of 0x hex bytes, as used for function selectors, event topics and storage slots. Use when building or decoding EVM calls.
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Keccak hash, keccak256. Keccak-256 hash (the Ethereum hash) of text or of 0x hex bytes, as used for function selectors, event topics and storage slots. Use when building or decoding EVM calls.
JSON validator, validate JSON. Check whether text is valid JSON. Returns valid true/false, the parsed value's type and size, and for invalid input the error message with line and column. Use before parsing an LLM's or an...
JSON to CSV, array to table. Convert a JSON array of objects to CSV with a header row built from all keys. Nested values are written as JSON. Use to export API results to a spreadsheet.
Minify JSON. Remove all unnecessary whitespace from JSON and report the size before and after. Use to shrink payloads or prompts.
JSON formatter, pretty-print. Format JSON with indentation (2 or 4 spaces, or tabs) and optionally sorted keys. Returns the formatted text. Use to make machine JSON readable or to normalise it for diffs.
IP address info, classify an IP. Classify an IPv4 or IPv6 address without any lookup: version, whether it is private, loopback, link-local, carrier-grade NAT or public, and its integer and reverse-DNS forms (IPv4). Use t...
HTTP status code meaning. Name and plain-language meaning of an HTTP status code (1xx-5xx, including 402 Payment Required and 429 Too Many Requests), and whether to retry. Use when handling API errors.
Security headers check, HTTP. Fetch a public URL and grade its HTTP security headers: HSTS, Content-Security-Policy, framing protection, nosniff, Referrer-Policy and Permissions-Policy, plus version leaks (Server, X-Powe...
HTML to plain text. Strip HTML to readable plain text: scripts and styles removed, block elements become line breaks, list items get bullets, entities decoded. Use to feed web content or emails to an LLM.
Token transfers, Ethereum. List a wallet's recent transfers of one ERC-20 token (default USDC) on Ethereum, in and out, over the last N blocks (1-2,000, default 1,000): direction, counterparty, amount and transaction, ne...
JSON toolbox. Everything about one JSON document in a single call: valid or not with the error's line and column, pretty-printed (optionally with sorted keys), minified with the bytes saved, an inferred JSON Schema, stru...
Hash generator, hash toolbox. Every common hash of one input in a single call: MD5, SHA-1, SHA-256, SHA-384, SHA-512, Keccak-256 (Ethereum), CRC-32, base64 SHA-256, and Subresource Integrity strings (sha256-, sha384-, sh...
Encoding toolbox. Every common encoding of one text in a single call: Base64 and Base64url, hex, URL component and full-URL encoding, HTML-escaped, ROT13, Unicode code points, UTF-8 byte count and Punycode for internatio...
Coin research, crypto research. One call to research a single coin traded on Hyperliquid (BTC, ETH, SOL, HYPE and about 200 more): price, 24-hour change, volume and open interest, the funding rate now and over the last 3...
Speech to text, transcribe audio. Transcribe speech from an audio file at a public URL using Whisper large-v3-turbo. Returns the transcript text, detected language, duration and word count. Accepts common formats such as...
Honeypot token check, token risk. Check a Base token before you swap into it: a high/medium/low risk verdict with named red flags (paused transfers, blacklist, owner-set fees or tax, a mint selector with a live owner, up...
Image generation, generate image. Text-to-image generation with FLUX.1 schnell. Send a prompt, get a 1024x1024 JPEG back as base64 in a few seconds. Use for illustrations, thumbnails, mockups, avatars and social media im...
Week number and date facts. Weekday, ISO week number and week-year, day of the year, quarter, days in the month, leap year, Unix timestamp and whether it is a weekend, for any date. Use for calendar and reporting logic.
Date calculator, add time. Add (or subtract, with negative numbers) years, months, weeks, days, hours and minutes to a date, or add business days (skipping Saturdays and Sundays). Month ends are clamped (31 Jan + 1 month...
CSV to JSON. Convert CSV (comma, semicolon, tab or pipe; delimiter detected automatically; quoted fields supported) to a JSON array of objects using the first row as keys. Numbers stay as text unless numbers=true. Use to...
Cron expression next run times. Next run times (in UTC) of a standard 5-field cron expression (minute hour day month weekday; ranges, lists, steps and names like MON or JAN supported). Use to check a schedule before depl...
Case converter. Convert text or identifiers between camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, Title Case, Sentence case, UPPER and lower. Handles mixed input like 'userID_value'. Use when renaming fie...
Base64 encode. Encode UTF-8 text as standard base64, and also return the URL-safe variant. Use for data URLs, headers and basic auth strings.
Base64 decode. Decode standard or URL-safe base64 to UTF-8 text. Missing padding is tolerated. Use to read encoded headers, tokens and data URLs.
Base account nonce. Read the transaction count (nonce) of a 0x address on Base, both confirmed and including pending transactions. Use to build the next transaction or to tell whether an address has ever sent anything; f...
Base native balance. Native ETH balance (eth_getBalance) of any 0x wallet address on Base at the latest block, in wei and in ETH. Use to check whether a wallet can pay gas or a transfer; for ERC-20 tokens use base_token_...
Word count and readability. Count characters, words, sentences and paragraphs, estimate reading and speaking time, and compute the Flesch reading-ease score and grade level for English text. Use to check the length and r...
Text diff, compare two texts. Line-by-line difference between two texts: each line marked as unchanged, removed or added, with counts. Use to see what changed between two versions of a document, config or prompt.
Slugify, make a URL slug. Turn any text into a URL-friendly slug: accents removed (é→e, ß→ss), lower case, non-alphanumerics replaced by a separator (- by default). Use for file names, URLs and IDs.
JSON repair. Fix JSON as LLMs often write it: removes ```json fences and surrounding prose, comments and trailing commas, converts single quotes, quotes bare keys, maps True/False/None, and closes unclosed brackets. Retu...
Provider identity is derived from the domain or repository in the source record. If two vendors share a host, they appear together here — that is a limitation of the data, not a statement about ownership.