226 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Multi-oracle price consensus (?symbol=SOL|BTC|ETH): median across Pyth, Binance, Coinbase, Kraken and CoinGecko queried in parallel, with spread in basis points, outlier detection for stale or manipulated feeds, per-s...
Use when an agent needs base block number. Returns Fetch the current Base mainnet block number from redundant public RPCs and return structured JSON with source and freshness metadata. $0.002.
invinoveritas /signals/full — a live Hyperliquid perps read, recomputable per coin from the raw metrics we return (funding + 24h delta, basis, open interest,
Federal funds effective rate minus CPI YoY inflation. Measures whether monetary policy is restrictive or accommodative in real terms. Negative real rates = loose policy (historically supports risk assets). Positive real...
SHA256 hash, SHA-256. SHA256 hash of UTF-8 text (SHA-256 by default; SHA-1, SHA-384 or SHA-512 on request), returned as a digest in hex and base64. Use for checksums, cache keys and deduplication.
Luhn check, card validation. Luhn check: whether a card number or other ID passes the Luhn (mod 10) algorithm used by card numbers, IMEI numbers and many IDs, and compute the check digit to append. Only the format is che...
JWT decode without a key: the header and payload of a JSON Web Token (the signature is not verified), with issued-at, not-before and expiry as dates and whether it has expired. The token is not stored. Do not use the res...
Explain a cron expression (5 fields, names like mon-fri, or @daily) in plain English and list its next run times in any UTC offset. Use to check schedules before deploying jobs.
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.
Semver compare, version check. Semver compare of two semantic versions (1.2.3, pre-releases like 2.0.0-rc.1 handled by the SemVer rules): which is newer, plus the next major, minor and patch versions of the first. Use to...
Time zone conversion - convert a time between any two IANA time zones with DST and UTC offsets, or get the current time anywhere
Generate N cryptographically-strong, url-safe random tokens server-side — session IDs, API nonces, one-time codes, coupon secrets. Pass count= for how many. A tiny paid utility for agents that need entropy without a cryp...
Echo your public IP, user agent and payment as the server saw them - for debugging an x402 client
Compound interest calculator. Compound interest on savings or an investment: starting amount, annual rate, years, compounding (yearly, quarterly, monthly or daily) and an optional contribution at the end of each month. R...
XML to JSON converter. XML to JSON for any XML document: attributes become "@name" keys, text becomes "#text" (or the value itself when an element only holds text), and repeated child elements become arrays. DOCTYPEs and...
Ping, x402 payment test. A paid round-trip check: returns pong and the server time. Use to test that an x402 wallet, client or MCP setup can pay and receive a result.
SHA-256 hash/digest of a text string — also sha512 and sha3-256; returns hex.
Color palette generator. Build a colour palette from one hex colour: complementary, analogous, triadic, split-complementary and tetradic harmonies (hue rotations at the same saturation and lightness), plus six shades fro...
Markdown table from CSV. Convert CSV (comma, semicolon, tab or pipe, detected automatically; quoted fields supported) into a GitHub-flavoured Markdown table, with number columns right-aligned, pipes escaped and line brea...
Returns the message you send, with its length and the server time. Use to test an x402 client, payment flow or agent tool wiring end to end.
Reference facts for paying and reading on Base mainnet: chain id, native USDC contract and decimals, block explorer and public RPC URLs, and the x402 network identifier. Use to configure an x402 or Base client.
Base58 encode or decode bytes/hex (Solana-style base58).
Base64 encode or decode a string — base64 encoder/decoder (body {mode:encode|decode,input}).
Hex encode or decode text — hex string encoder/decoder.