General Utilities x402 offerings

Return the ISO weekday (1=Monday..7=Sunday) and its name for a Gregorian date.

Compute the calendar breakdown (years, months, days, hours, minutes, seconds) between two ISO 8601 dates/date-times, plus exact totalSeconds. If end precedes start the result is flagged negative rath…

Add an ISO 8601 duration to a start date or date-time and return the resulting UTC instant. Calendar-aware: months and years honor month lengths (e.g. Jan 31 + P1M clamps to the last day of February)…

Convert a proleptic-Gregorian calendar date to its Julian Day Number (the integer count of days since JDN 0, 1 January 4713 BC in the proleptic Julian calendar).

Convert an ISO datetime into another timezone, with offset, weekday and Unix time.

Parse an ISO 8601 duration such as 'P1Y2M10DT2H30M' into its components. Returns a normalized ISO string and totalSeconds — but totalSeconds is null when the duration contains years or months, becaus…

Compute the date of Western (Gregorian) Easter Sunday for a year in 1583..9999 using the Anonymous Gregorian computus.

Return the ordinal day of the year (1..366), the number of days in that year and whether it is a leap year.

Convert a Julian Day Number back to a proleptic-Gregorian date, with the ISO weekday (1=Monday..7=Sunday) and its name.

Render an ISO 8601 duration as an English phrase, e.g. 'P1Y2M' → '1 year and 2 months'. Components are shown in descending order with correct pluralization.

Assemble an ISO 8601 duration string from individual components (years, months, weeks, days, hours, minutes, seconds) and an optional sign. All components must be non-negative and at least one must b…

Get the day number within the year (1-366) for any date, plus days remaining, leap-year status, percent of year complete, and a simple (Sunday-start) week number.

Credential escrow proxy — agent pays DDG, DDG makes the upstream API call with its own credentials, returns result. Agent never sees the API key.

Ask up to 20 typed yes/no, multiple-choice or ordinal-scale questions about one shared piece of context in a single call - each answered with a real probability (Jev decision primitives), not generated text. Powered by Jev (TypeSafe System One). $0.001 per call, no OpenRouter or TypeSafe account needed. Try GET /decide/sample.

0/1 knapsack solver — exact work-bounded capacity planning and portfolio selection for maximum value, with deterministic ties and reproducible DP evidence.

Bin-packing heuristic — deterministic best-fit-decreasing capacity planning for placing items into bins, with feasibility evidence and an honest volume bound.

Decode base58 to bytes — Genesis402 / UnyKorn Operator Network

Decode a transaction: send ?chain=base|arc&tx=0x... and get its event logs decoded (every ERC-20 and NFT transfer typed, with from, to and amount), the function called, success or failure, gas in USD and one plain-English sentence of what happened. What did this transaction do? Pass ?chain=base|arc&tx=0x...

DeepTrawler - Search Telegram messages globally or within chats

DeepTrawler - Search posts across public Telegram channels

Detect language, formality and tone of a text with confidence scores. Deterministic heuristics + compact wordlists. Returns iso_639-1 + register. — $0.001 USDC/call on eip155:8453. Pay-per-call via x…

OCR an image with Workers AI vision (LLaVA). Returns extracted text + timing. Takes a few seconds (cloud vision model). DO NOT use for faces or sensitive PII. — $0.004 USDC/call on eip155:8453. Pay-p…

Estimate exact token count (tiktoken-style) and trim text to a budget — $0.001 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no account. Free samples daily.

Human-readable rationale for one event's impacts.