General Utilities x402 offerings

Summarize supplied text faithfully in at most 100 words and return JSON. Use when an agent needs concise compression of a document, article, log, or message of 1-2,000 characters.

German calendar and business-day deadline calculator with public holidays per Bundesland

German calendar and business-day deadline calculator with public holidays per Bundesland

DIY car repair guide / how to fix / repair cost estimate. Returns the step-by-step procedure, parts list, tools needed, and a cost estimate for any repair job (brakes, oil change, filters, etc.) on any vehicle. For DIY-repair and auto agents.

Cheap structural IBAN validation: ISO 13616 checksum + per-country structure/length. Returns valid plus, on rejection, a granular error_type (invalid_checksum, invalid_length, invalid_structure, invalid_country), the country and the format spec. Offline (schwifty, MIT); no network or keys. A cheap-first entry before the fuller /bank/verify fusion route.

Validate EAN-8, EAN-13, UPC-A, GTIN-14, ISBN-10 and ISBN-13: check digit (and the expected one if wrong), code type, GS1 prefix and registering country, plus ISBN-10/13 conversion.

Decode a barcode or QR code from an image. Send a base64 PNG or JPEG (or a data: URL); returns the decoded text and the symbology. Reads QR, DataMatrix, and 1D barcodes (EAN/UPC/Code39/Code128/ITF/Codabar). Deterministic, no network, no model.

Generate a barcode as PNG (base64): code128 (default), ean13, ean8, upca, upce, code39, itf14, gs1_128, isbn, datamatrix, pdf417, aztec or qr. Validates check digits for EAN/UPC. Use for labels, shipping, inventory, tickets or invoices. Params: text (required), type, scale (1-8, default 3), include_text boolean (human-readable text under the bars).

Barvis is a no-code AI agent that simplifies DeFi. Execute swaps, staking to complex yield strategies across chains seamlessly with one command. Join the future of DeFAI.

Convert an integer between number bases (radix 2-36), e.g. binary↔hex↔decimal. Arbitrary size via BigInt.

Base converter: convert an integer between any two numeric bases from 2 to 36 (hex, binary, octal and more), with arbitrary precision so values far beyond 2^53 are exact. Accepts an optional sign and common prefixes (0x, 0b, 0o), validates every digit against the source base, and returns the value in the target base, in decimal, and as its bit length and digit count.

Base32 (RFC 4648) encode or decode text. mode: encode (default) or decode.

Base58 encode or decode text (Bitcoin/IPFS alphabet). mode: encode (default) or decode.

Base58 encode or decode bytes/hex (Solana-style base58).

Base58 encode or decode bytes/hex (Solana-style base58).

Encode or decode a string across base64, base64url, hex, and URL/percent encoding.

Encode or decode a string across base64, base64url, hex, and URL/percent encoding.

Encode or decode base64. POST {"mode":"encode","input":"..."} or {"mode":"decode",...}. Supports standard and url-safe alphabets via {"urlsafe":true}. Decoding validates the input and reports an error rather than returning silent garbage.

Base64 encode or decode text. mode: encode (default) or decode. Handles URL-safe base64 on decode.

Base64 encode or decode a string — base64 encoder/decoder (body {mode:encode|decode,input}).

Base64 encode or decode a string — base64 encoder/decoder (body {mode:encode|decode,input}).

Bazaar SEO for x402 sellers: where your endpoint ranks in Coinbase Bazaar search and what to fix. Where does your x402 endpoint come up when an agent searches Coinbase's Bazaar? Pass ?url= and optionally &query= (up to 3; left out, your own tags are searched). For each search: your rank in the top 20, the sellers above you with their price, tags and 30-day payers, the median price, and the concrete fixes (serviceName, tags, the words your description opens with).

Compute zakat due on wealth: cash, gold, silver, business inventory, receivables, crypto and stocks, less deductible liabilities. Returns the nisab threshold under BOTH the gold (85g) and silver (595g) standards and flags when they disagree, since the choice changes who owes. Supports lunar (2.5%) and solar (2.577%) years. Deterministic — you supply metal prices, so you control the source. Educational calculation, not a fatwa.

Traces the likely origins and influences behind a personal belief.