Compute the full descriptive-stats panel for an array of numbers in one call: count, sum, mean, median, mode, stddev (sample), variance, min, max, range, q1, q3, IQR. Beats calling 12 separate tools when you already have the array in front of you.

Dividend and stock-split history for a ticker: every cash dividend (ex-date + amount) and split (date + ratio) over a configurable range (default 5y, up to max). Empty arrays for non-payers — a valid answer, not an error. Backed by Yahoo Finance's...

Historical OHLCV bars for a symbol. Configurable interval (1m, 5m, 15m, 30m, 60m, 1d, 1wk, 1mo, 3mo) and range (1d, 5d, 1mo, 3mo, 6mo, 1y, 2y, 5y, 10y, ytd, max). Intraday intervals are limited by Yahoo to ~60 days of data. Returns a flat array of bars (time, open, high, low, close, volume) ready for charting or backtests.

Live stock/index/FX/crypto quote: last price, day range, 52-week range, previous close, currency, exchange, and a relative change vs. previous close, as clean JSON. Backed by Yahoo Finance's public chart endpoint - keyless, no rate limits in pract...

Compute multiple similarity metrics between two strings at once: Dice coefficient, Jaccard index, overlap coefficient (all bigram-based), and normalized length difference. All values 0–1. Deterministic, pure CPU.

Detect the technology stack of a public website: CDN, web server, language/runtime, frontend framework (Next.js, Nuxt, SvelteKit, Remix, Astro, React, Vue, Angular), CMS (WordPress, Drupal, Ghost, Shopify, Wix, Squarespace, Webflow), analytics (GA...

Fund any address with testnet money via the Coinbase faucet — USDC (1) or ETH (0.0001) on Base Sepolia, USDC (1) or SOL on Solana devnet — everything an agent needs to rehearse the complete x402 payment loop safely before moving real money. A tent...

Split text into overlapping chunks for RAG ingestion — by characters (default) or by exact LLM tokens. Returns the chunks plus offsets. Deterministic, no model needed.

Line-by-line diff of two texts (LCS). Returns unified-style ops and change counts. Up to 2000 lines per side.

Compute Jaccard similarity, overlap coefficient, and Sorensen-Dice coefficient between two texts at the word level. Returns similarity scores (0-1) plus shared and unique word counts.

Characters, words, sentences, paragraphs, average word length, reading time, and an LLM token estimate for any text.

Current time: UTC ISO, epoch seconds/ms, day of week/year, ISO week — optionally rendered in any IANA timezone via ?tz=.

Convert between epoch (s or ms), ISO 8601, and any IANA timezone. Give a value, get every representation back.

Convert a datetime from one IANA timezone to another. Accepts ISO 8601, Unix timestamps (seconds or milliseconds), or natural date strings. Returns the converted time in both timezones with UTC offset. ?datetime=2026-06-23T14:00:00&from=America/Ne...

Inspect the TLS certificate of any public host: subject, issuer, validity window, days remaining, SANs, and SHA-256 fingerprint.

Count exact LLM tokens for a string using the real OpenAI BPE (o200k_base for gpt-4o/o-series, cl100k_base for gpt-4/gpt-3.5). Deterministic, offline — budget context windows without calling a model.

Explorer-grade metadata for any ERC-20/721/1155 token on any Blockscout-hosted chain: name, symbol, decimals, type, total supply, holder count, and 24h transfer count — bought per call from Blockscout's Pro API over x402, no API key. Marked untrus...

Resolve an ERC-20 contract address to its on-chain metadata: symbol, decimals, name, and logo URL where available. Use this to humanize a raw contract address before showing it to a user or before computing fiat values.

Return the current USD spot price for an ERC-20 token, identified by its contract address and network. Sourced from Alchemy's aggregated price feed. Use this for portfolio-value calculations or to denominate a balance in fiat without depending on ...

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 for.

Transcribe audio to text using OpenAI (gpt-4o-mini-transcribe). Provide a URL to an audio file (mp3, wav, m4a, etc.) and get back the transcript. No API key needed; pay per call via x402. Max 5 minutes of audio, 25 MB file size.

Transcribe audio to text using OpenAI (gpt-4o-transcribe). Higher accuracy than the standard tier. Provide a URL to an audio file and get back the transcript. No API key needed; pay per call via x402. Max 10 minutes of audio, 25 MB file size.

Build the EIP-3009 transferWithAuthorization typed data for a gasless USDC transfer on Base/Polygon/Arbitrum/Optimism/Ethereum — the exact EIP-712 object an agent signs with its OWN key to authorize an x402 payment. We construct it; we never sign ...

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. No params — returns the most recent reporting month.

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 params.

Latest US Treasury daily constant-maturity yields (1mo, 3mo, 6mo, 1y, 2y, 3y, 5y, 7y, 10y, 20y, 30y) as clean JSON. Source: FRED DGS* series (St. Louis Fed), public domain, no key. No params - always returns the most recent published curve.

Last N business days of US Treasury constant-maturity yields, oldest→newest. Source: FRED DGS* series (St. Louis Fed), public domain. ?days=30 (1-250, default 30).

Truncate text to a maximum length, adding an ellipsis (or custom suffix). Optionally break on word boundaries.

Convert text to speech using OpenAI TTS-1. Returns base64-encoded audio (mp3/opus/aac/flac/wav/pcm). 10 voices available. No API key needed; pay per call via x402. Text capped at 2000 chars.

Convert text to speech using OpenAI TTS-1-HD (higher fidelity). Returns base64-encoded audio. Same interface as /api/tts but with better audio quality. No API key needed; pay per call via x402. Text capped at 2000 chars.

Dry-run a prospective transaction without broadcasting it: executes eth_call and eth_estimateGas against the latest block over the same keyless multi-endpoint public RPC pool as /api/evm-rpc (ethereum, base, polygon, arbitrum, optimism). Returns t...

Check the confirmation status of a transaction by hash on Base/Polygon/Arbitrum/Optimism/Ethereum/Robinhood Chain: success / failed / pending / not found, with block, from, to, gas used. Read-only. ?hash=0x…&network=base

Generate ULIDs (sortable, timestamp-prefixed identifiers). ?count=1..100.

Latest US unemployment rate plus a trailing N-month series for trend. Source: FRED UNRATE (Bureau of Labor Statistics). ?months=12 (1-120, default 12).

Convert a value between units of length, mass, temperature, volume, area, speed, time, data, pressure, energy, power, angle, frequency — every unit the retired convert-* endpoints handled (e.g. miles, kilograms, us-gallons, fahrenheit, psi, kilowa...

Follow a short link's redirect chain (bit.ly, t.co, youtu.be, tracking links, …) without downloading any page body: returns the final URL, the final HTTP status, and every hop with its status code and Location target. Capped at 5 redirects; every ...

Percent-encode or decode a string for URLs. mode: encode (default) or decode. component: true (default) uses encodeURIComponent semantics.

Parse a URL into components: protocol, host, port, path, query params (decoded), hash, origin, punycode hostname.

Read the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, or Ethereum. Read-only on-chain call. ?address=0x…&network=base

Heuristic user-agent string parser: browser, version, OS, device class, and bot detection.

Generate UUIDs. ?version=4 (default, random) or 7 (time-ordered), ?count=1..100.

Generate a deterministic name-based UUID (version 5, SHA-1) from a namespace + name — the same inputs always yield the same UUID, for stable IDs without a database. Namespace may be a UUID or an alias: dns | url | oid | x500.

Validate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms.

NHTSA safety recalls for a vehicle by make/model/year: campaign number, affected component, summary, consequence, and remedy. Live gov data, no key. ?make=honda&model=accord&year=2019

Decode a vehicle VIN via NHTSA vPIC: make, model, year, trim, body class, engine, fuel, plant, and vehicle type. Accepts full or partial VINs (partial needs modelYear). Live gov data, no key. ?vin=1HGCM82633A004352

Look up the native coin balance (ETH/MATIC) plus every ERC-20 holding for a wallet address on Ethereum, Base, Polygon, Arbitrum, or Optimism. Returns clean decimal balances (already scaled by token decimals) plus symbol and contract — ready to dis...

All token balances for any address in one call, from Coinbase's indexed data API — ERC-20 + native on EVM, SPL on Solana; no per-token contract calls, no RPC wrangling. Networks: base, ethereum, base-sepolia, solana, solana-devnet. Symbols/decimal...

Return the most recent asset transfers (incoming + outgoing) for a wallet address — native coin, ERC-20, ERC-721, ERC-1155 — already merged and sorted newest first. Each row carries the block, tx hash, counterparty, asset, and decimal value. Cap i...

Current air quality index and pollutant concentrations for any location: US AQI, PM2.5, PM10, ozone, NO2, SO2, CO. Open-Meteo air quality API, no key, global. ?lat=28.61&lon=77.23.

Active National Weather Service alerts for a US state as clean JSON: event, severity, headline, affected areas, onset/expiry. Live government data, no key. ?area=CA.