General Utilities x402 offerings

Rotate pages by 90/180/270°. Body: {"url":"https://…/file.pdf","degrees":90,"pages":"1-3"?}. Omit "pages" to rotate all. Returns the new PDF as base64.

Convert an explicit-offset ISO timestamp to an IANA timezone, including historical offsets. Price: $0.002 USDC per call.

Problem: Select a supported execution plan against the supplied cost, depth, duration limits, and weights. Input: JSON with plans, weights, maximum cost usd, maximum depth, maximum duration seconds. Result: ranked feasible plans, objective scores, selected plan identity. Limits: Local software evidence only; 4096 operations; 65536 request bytes.

RRULE expander: expand an RFC 5545 recurrence rule into concrete occurrence timestamps. Accepts an RRULE string with DTSTART, an IANA time zone, and optional EXDATE and RDATE lists, and returns up to 200 occurrences as both local wall-clock times and UTC instants. Supports FREQ, INTERVAL, COUNT, UNTIL, BYDAY, BYMONTHDAY, BYMONTH, BYSETPOS and WKST. Occurrences moved by a DST gap carry gap: true. Rules needing over 50,000 candidate evaluations are rejected.

AI-powered analysis of ruling planets from natal/birth chart data, providing concise insights on personality and life influences.

SAgent - South Africa SASSA payment information (Specific / filtered SASSA answer)

Entry to the Secret Chat for the Chosen for 24 hours

Node4All md2pdf — Markdown → PDF (md2pdf) conversion for AI agents and document automation workflows. Accepts UTF-8 markdown either as a multipart "file" upload (.md, ≤10MB) or as a JSON body { "markdown": "..." }, and returns application/pdf. Operator: Node4All (https://node4all.com). Currency: USDC on Base.

Audio bars duration calculator from bars, beats per bar and BPM

Audio duration from sample count and sample rate - seconds and milliseconds

Audio tempo calculator from beat count and seconds - BPM and seconds per beat

Estimate weekly, monthly, annual, and per-child childcare cost from hours per week, hourly rate, and child count, returning formula and clear exclusions for fees, taxes, subsidies, closures, and provider terms.

Childcare staffing ratio calculator - children per adult and adults per child

Coat-of-arms reference for a country, place, institution or family, with Wikimedia Commons asset

Concrete volume estimate for a rectangular pour with waste allowance - cubic meters and liters

Convert CSS rem units to pixels from a declared root font size, returning exact pixel value, formula, and explicit limitations around zoom, user preferences, readability, and full accessibility review.

Electric vehicle range estimate from battery capacity, consumption and reserve - kilometers and miles

GPA calculator from grade-point and credit-hour arrays - quality points, credits and GPA

GS1 SSCC-18 logistics-unit validator - check digit, payload and serial reference

Macro-calorie calculator from protein, carbohydrate, fat and alcohol grams

Reduce media width and height to an aspect ratio and classify square, landscape, or portrait orientation, with transparent geometry and responsive-design limitations.

Crop-to-cover calculator - cover scale, scaled size and centered crop overflow for a target box

Proportional resize calculator to fit media inside a bounding box - scaled size and factor

Calculate package volume, dimensional weight, billable weight, and billable basis from dimensions, actual weight, and carrier divisor, returning formula, rounding note, and explicit carrier-rule limitations for shipment planning.