Applications, APIs & agent tools
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Listing ID: x402:32aa7b9b9b3b57c156dd1005227632ad50b7569a042b561ad78e2a505922ad94
Generate a QR code for any text, URL or crypto address: returns ready-to-embed SVG markup and a data URI, with configurable size and error-corre…
Listing ID: x402:3baede558edc811298dae042cfbe5375bc71ab7821e90efff95740530012e2a8
Explain what an EVM transaction would actually do: decodes the calldata (ERC-20 transfers/approvals via known ABIs, unknown selectors via the 4b…
Listing ID: x402:3d4e25ad2f2969be59f12337a04d2204131cd01fecb043ff5867393c705e114c
Convert between wei, kwei, mwei, gwei, microether, milliether and ether with exact BigInt arithmetic. Decimal strings of any magnitude convert w…
Listing ID: x402:3d6f784ddb216e0f3b148ea921a6b0788fce84922a6bcecef3b631b7c8633fba
Fetch an RSS or Atom feed and return normalized JSON items: title, link, publication date (ISO) and summary. Server-side fetching with SSRF guar…
Listing ID: x402:3e383bccd620406be72a9574b3e1c8cd962a75fee8cf1dc6e1a57e48939424c6
Calculate a transaction's gas fee: gas units × gas price (gwei) gives the ETH cost, multiplied by the ETH price for USD. Exact BigInt math for t…
Listing ID: x402:43257869b451eb2a1efe0ab4f06801c6f10b7d466b8dd5032ce16569d5dd2310
Convert integers between any bases from 2 to 36 — binary, octal, decimal, hexadecimal and beyond — with BigInt precision (no limit on magnitude)…
Listing ID: x402:4ef56baa433e8bc1f8ae93cf44d59b831763fa84174683e61a3371adb84bc80d
Turn a cron expression into plain English, validate it, and compute the exact next execution times. Deterministic — the answer to 'when does thi…
Listing ID: x402:4f22fcbdd25fec8c9d4872929eb2d40860bcb0ad6637e6ed175aef4557be9208
Live foreign-exchange reference rates from the European Central Bank (via frankfurter.dev): a full rate table against any base currency, or cros…
Listing ID: x402:50cdd4bc11b4532929ff3219a1aa6b3e8aec07456f57fe06ed9d95a1a995185c
Validate JSON with precise error messages, pretty-print it with any indent, and inspect its top-level type and element counts. Use this when an …
Listing ID: x402:54676f8720d862cd3261498233aa87d160a0134fc404137aa333721096c3cb08
Parse a URL into all its components: protocol, hostname, port, path segments, query parameters (as a clean object), hash and credentials. Exact …
Listing ID: x402:56ba34f177d535b2048707fb3bf1ca3190d6ca608abcf970c00998a44c1dd7e2
Percent-encode text for safe inclusion in URLs and query strings, or decode percent-encoded text back. Uses the standard encodeURIComponent rule…
Listing ID: x402:6583be293f9ce41c9584f8552ccd7b8a040b7fa3b7426589ee609390029a25fa
Fetch a PDF (by URL, SSRF-guarded) or accept it as base64 and extract all readable text with page count. Deterministic parsing — no language mod…
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