Country evidence pack: the full cited country brief plus up to 3 Ed25519-signed certified extracts (vat, policy-rate, minimum-wage by default) for a compliance file. Refused free if nothing can be certified.

Invoice due date and late interest: is this invoice overdue, by how many days, and the statutory late-payment (or statutory) interest owed, rate and workings cited. Countries here: FJ, NZ, SB, TO, WS. Others refused free.

Simple statutory interest on a principal at the cited statutory-interest series rate (Actual/365 simple). A series with no numeric rate is refused free

Generate a standards-based QR code from supplied UTF-8 text or a payment URI. Return SVG or PNG as base64 with dimensions, SHA-256, QR version and error-correction level. Maximum 1024 UTF-8 bytes, scale 1–8 and fixed four-module quiet zone. Encodes the supplied payload; does not validate a payment destination, execute payment or host an image.

Statutory income tax on a taxable-income figure: per-bracket workings, effective + marginal rate

Statutory income tax on a taxable-income figure: per-bracket workings, effective + marginal rate

Snapshot of every series, all countries

Simple statutory interest on a principal at the cited statutory-interest series rate (Actual/365 simple). A series with no numeric rate is refused free

Global weather forecast by latitude/longitude: up to 48 hours of temperature, humidity, wind, cloud cover and next-hour precipitation in UTC with explicit units and model update time. Forecasts, not live observations; missing fields are null and sparse periods are not interpolated. Based on MET Norway data (CC BY 4.0); outage cache is flagged stale.

Compute SHA-256, SHA-512, SHA3-256 or BLAKE2b-512 digests from explicit UTF-8, canonical base64 or hex bytes. Optional HMAC supports SHA-256/SHA-512 and supplied keys. Return hex or base64 with byte count. Maximum 16 KiB decoded input and 1 KiB HMAC key. No signing, encryption, password hashing or authenticity judgment.

Read ordered new, grade_changed and rescanned events with previous grades and scores. Default 200, maximum 1000; signed watermark cursors. History retains 30 days or 50000 events; expired cursors return 410. Costs 0.01 USDC per page on Base or Solana. Use a fresh idempotency key per page; retain the original body and proof for exact recovery.

Extract static page metadata and share previews from one public HTML URL: title, description, canonical candidates, Open Graph/Twitter fields, image and favicon references. Resolve relative links, disclose canonical conflicts and apply explicit precedence. Maximum 1 MiB HTML and five redirects. No JavaScript rendering, asset retrieval or reachability guarantee for linked images.

Wage check: is this salary legal vs statutory minimum wage? Verdict + margin + instrument

Kronos Forecast: the Kronos candlestick model signal for one symbol and interval as a standard JSON fact list (direction, confidence bucket, volatility-based range, invalidation level, per-step percentiles). Live: BTC-USD, ETH-USD 1h; stocks, forex and commodities rolling out. Experimental, not calibrated. Not financial advice. Timeframe: 1h.

Academic paper search by topic or seed DOI/OpenAlex ID. Return ranked publication metadata with identifiers, source provenance, conservative duplicate/version grouping and reported retraction flags from OpenAlex and Crossref. Filter by publication year; retrieve up to 20 results. No abstracts, full text, author identities, exhaustive literature review or quality/retraction clearance.

PDF parsing: PDF to structured Markdown. Send {url} (this 402 is the exact quote) or a quote_id from the free /v1/parse/quote; flat $0.01/doc for text PDFs, $0.015/page for scanned OCR with hallucination guard (dual-engine consensus). Japanese-strong.

Simple statutory interest on a principal at the cited statutory-interest series rate (Actual/365 simple). A series with no numeric rate is refused free

Company profile from a domain: name, description, logo, language, address, public contact emails and phones, social profiles, detected technologies, and registration facts (domain age, registrar, mail provider). Built only from what the company publishes on its own homepage (title, meta tags, schema.org markup, mailto/tel/social links) plus public RDAP and DNS. Fields not found are null, not guessed. No employee or personal data.

Did this USDC payment settle, and what is the payer's funding source? Deep Base verification: confirmations, payTo/amount match, fake-token and lookalike warnings, plus the payer's inbound USDC funding history from an index (latest 500 transfers before the payment, then up to 5 more pages; coverage.historyComplete says if that was the full history), top funders, coverage stats and a recheckable sha256 receipt. Not charged if the index is down. Body {txHash, expectedPayTo?, expectedAmount?}.

x402Pulse Pro: a 30-day pass for $19.97 USDC that returns an API key for unlimited calls (fair use: 120 a minute, 20,000 a day) to every x402Pulse endpoint, plus an MCP server for Claude Code, Cursor and Claude Desktop. To renew, send your current key as Authorization: Bearer <key>; renewals add 30 days to the time left. The key is shown once.