Applications, APIs & agent tools
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Listing ID: x402:7c6be9bd7272f0fe7170416ee5607128bd8841830b1bf9c4b025a874191aca2d
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: x402:7d1c9c49e16d0728f2a6887003cd45e2a2e192d12214b52a399d287fee2a85fc
Convert APR (nominal annual rate) to APY (effective annual yield) for any compounding frequency including continuous — the exact DeFi math that …
Listing ID: x402:7eb2b257034cf43cef4d0c449aa54f00acfec6f4b6aeddbf68623fa0646fa43b
Parse iCalendar (.ics) content — meeting invites, conference calendars, exports from Google/Outlook — into structured event JSON: title, start/e…
Listing ID: x402:8258f5e8f01961fa5623b720eb8bd00b7805da2f1dd7220dd134e3e531556a93
Calculate the compound annual growth rate that takes an initial value to a final value over a given number of years — the standard way to annual…
Listing ID: x402:86467e867233152eff37b106f5934a7c7a9a17fe8bdc4005f6972a8375962d89
Decode a JSON Web Token's header and payload to readable JSON. Pure decoding: signatures are NOT verified and no secret is needed. Accepts stand…
Listing ID: x402:89f36e549492ed1419686e4964b93a72183bf371011f7494db7d0a0e29c1a83a
Look up MIME content types by type substring or file extension, or list a category — covering text, application, image, audio, video, font and m…
Listing ID: x402:90e6013ff0937bdcf2950eb07a1409159215a590bcdca2635ea711ec1199d940
Generate cryptographically secure randomness: passwords with charset rules, hex keys of any byte length, and uniform random integers (rejection …
Listing ID: x402:9216c590c0e35b5eed69f8ca768abccd7571a1d15dd25da90e836f07a157f6a2
Describe what you need and get back matching x402-paid APIs: our own catalog (54 tools) plus, optionally, the live x402 Bazaar of third-party se…
Listing ID: x402:94f15fca73030ca238a8c1da341d7f578a5210e8f0b45eca9097faeafb432948
Live transfer feed of an NFT collection with per-address accumulation analysis: net quantities received vs sent over recent activity, ranking th…
Listing ID: x402:9914e93a6d12a2220d1bafba670ed7b04588327898c1f2007614e31201e37635
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: x402:9990c7edbb7c7b6885c7cff11c48fd51b39b928d0bfef35104cdc744f985a713
Compute impermanent loss for a 50/50 constant-product AMM position at any relative price move, with a reference table of common moves. Determini…
Listing ID: x402:9ccb4bbb830b81c4f4b1083ce3706dfc7565614f20cded4ad0c1271a304fdc01
Repairs broken JSON: trailing commas, single quotes, unquoted keys, Python literals (True/False/None), NaN, comments, smart quotes and truncated…
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