Applications, APIs & agent tools
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Listing ID: x402:4d371dab454e5f54624ed720e3f73ea72ed92d48d2aa339b3d226307f157ea86
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: x402:4ec1a4e45632452cafedc7d387edf5d908ee7fbabb72235099f70e49ebfdbc3d
Compute a CVSS 3.1 base score from its vector string using the exact FIRST specification (weights, scope handling, and the rounding function). P…
Listing ID: x402:523228fa6b9172d0e00f84138418deab905bce90f852cc3d111d262e87b9a4e8
Calculate the API cost of an LLM call: input and output tokens × published per-million prices for 15 current models (OpenAI, Anthropic, Google, …
Listing ID: x402:52a4c4aaac3445906f329957b351b2680573f42aeaf4daddb42bcdfd93ade2b6
Convert YAML to JSON and JSON to YAML — the config-format bridge for CI files, Kubernetes manifests, docker-compose, agent configs and prompts. …
Listing ID: x402:5791270f801ab784b23cccb6cf844aa9a87521d92dd290f5fa7bea4f2af4bac2
Geolocate any IPv4/IPv6 address (or the caller's own IP when omitted) via ipwho.is: country, region, city, coordinates, timezone, ASN/network ow…
Listing ID: x402:620a3f67359a6a4905006239c0d277d8bbd0b59bff3a6163b0c89f8d54a49b6d
Encode text to base64 or decode base64 back to text. Full UTF-8 support including emoji and non-Latin scripts. Use this when an agent needs to u…
Listing ID: x402:629d4556fd3b07aca6abe13dc866eaaccbae5f3e7afa9e500290191453abc029
Reference database of HTTP response status codes with phrase, category and explanation. Look up a specific code or list a whole category (1xx–5x…
Listing ID: x402:65b2b49842e9c5f3f11ec40c7fd404b4dfafeb77ca9394f58d226f522b2fa09f
Query the Internet Archive's Wayback index for any URL: when it was first archived, the most recent snapshot, how many years it spans, and recen…
Listing ID: x402:715671fbc6f540ec68c2b01141c244a14c16c8d77122d48d77bc4f38ff73d383
Validate an email address in two layers: strict RFC-style syntax, then a live DNS MX lookup on the domain to confirm the recipient actually runs…
Listing ID: x402:73d14d305ece2d01db61d5aaacd03ebddf7d403b5f26f1b79be5ee8983a01d7c
Generate the current TOTP two-factor code (RFC 6238) from a base32 secret — the same codes authenticator apps produce. Supports 6/8 digits, 30/6…
Listing ID: x402:74f883edbb2bde626e17546764b53a0447988b2a4efbe2aa8920ac4ac6751117
Live lending/liquidity yields from DefiLlama: top pools by APY filtered by chain, stablecoin-only pairs, minimum TVL and a sane-APY cap that fil…
Listing ID: x402:7ba94d758481ce7eef11173bf2d6410d9ac64df9390cfee2692ea56df24dfb4c
Convert text between nine letter cases: UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE. camelCas…
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