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agent402
1,224 resources on agent402.tools · browse everything
Live web search: ranked results (title, URL, snippet, age) from an independent search index as clean JSON - fresh pages your model's training cutoff has never seen. Optional freshness filter (pd/pw/pm/py = past day/week/month/year). Start here to ... summarised by us
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- Percentage
Percentage helper. op: "of" (a% of b), "change" (% change a→b), "ratio" (a is what % of b).
- Base / radix convert
Convert an integer between number bases (radix 2-36), e.g. binary↔hex↔decimal. Arbitrary size via BigInt.
- Edit distance
Levenshtein edit distance between two strings, plus a 0-1 similarity ratio.
- Count
Count characters, words, lines, and (optionally) occurrences of a substring in text.
- CRC32
CRC-32 checksum of a text string (hex), the IEEE polynomial used by zip/png/gzip.
- Password strength
Score a password's strength: character-set size, entropy bits, a 0–4 rating, and an estimated offline crack time. The password is never stored or logged.
- Age calculator
Compute a precise age (years, months, days) from a birth date to today (or a given date), plus total days.
- Unit convert
Convert a value between units of length, mass, temperature, volume, area, speed, time, data, pressure, energy, power, angle, frequency - every unit the retired
- Query string
Parse a URL query string into an object, or build one from an object. mode: parse (default) | build.
- Dedupe lines
Remove duplicate lines, preserving first-seen order. Returns the deduped text and how many were removed.
- HTML entities
Encode text to HTML entities or decode them back. mode: encode (default) or decode.
- Base32
Base32 (RFC 4648) encode or decode text. mode: encode (default) or decode.
- ISBN validate
Validate an ISBN-10 or ISBN-13 checksum (hyphens/spaces ignored) and report which format it is.
- Business days
Count business days (Mon–Fri) between two dates, inclusive of the start, exclusive of the end. Optional list of holiday dates to skip.
- Statistics
Descriptive statistics for an array of numbers: count, sum, mean, median, mode, min, max, range, variance, stddev, and percentiles.
- JSON deep merge
Deep-merge two JSON objects (b wins on conflicts; arrays are concatenated).
- Sort lines
Sort the lines of a text. order: asc (default) | desc | numeric. unique:true removes duplicates; ci:true is case-insensitive.
- Morse code
Encode text to Morse code or decode it back. mode: encode (default) or decode. Words separated by ' / '.
- Base58
Base58 encode or decode text (Bitcoin/IPFS alphabet). mode: encode (default) or decode.
- GitHub repository enrichment
Enrich a public GitHub repository: stars, forks, watchers, open issues, license, topics, primary language plus the full language byte mix with percentages, crea
- x402 trending sellers
Momentum across x402 sellers: which sellers are gaining settlements and buyers hour over hour on Base, graded for wash-trade resistance from the on-chain leader
- US total public debt outstanding
Most recent total US public debt outstanding (the headline national-debt number, daily) from the Treasury "Debt to the Penny" feed. Public domain, no key. No pa
- Average interest rates on
Latest average interest rates the US Treasury is paying by security type (Bills, Notes, Bonds, TIPS, FRNs, marketable vs non-marketable). Public domain, no key.
- TLS certificate
Inspect the TLS certificate of any public host: subject, issuer, validity window, days remaining, SANs, and SHA-256 fingerprint.
- Email validate
Validate an email address: syntax check plus live MX record lookup on the domain (deliverability signal, not a guarantee).
- JSON diff
Deep-compare two JSON values. Returns a list of changed/added/removed paths (capped at 1000 differences).
- TOTP code
Compute the current TOTP code (RFC 6238, 30s period, SHA-1, 6 digits) from a base32 secret. Useful for agents that must complete 2FA flows they are authorized f
- Page metadata
Fetch page metadata for a URL: title, description, OpenGraph, Twitter cards, canonical URL, favicon.
- QR code
Generate a QR code PNG from any text or URL.
- Cron next runs
Parse a 5-field cron expression and return the next N run times (UTC).