Calculate the API cost of an LLM call: input and output tokens × published per-million prices for 15 current models (OpenAI, Anthropic, Google, DeepSeek, xAI, Meta). B…
Listing info 80/100
Convert YAML to JSON and JSON to YAML — the config-format bridge for CI files, Kubernetes manifests, docker-compose, agent configs and prompts. Parse errors are report…
Listing info 80/100
Estimate reading time from a word count at any reading speed. Defaults to 200 words per minute — the typical silent-reading speed for adults. Use this when an agent ne…
Listing info 80/100
Geolocate any IPv4/IPv6 address (or the caller's own IP when omitted) via ipwho.is: country, region, city, coordinates, timezone, ASN/network owner and currency. Cache…
Listing info 80/100
Calculate the final sale price and the amount saved for any price and percent-off discount, with the working shown. Use this when an agent needs to sale price and savi…
Listing info 80/100
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 uTF-8 safe base64 in bot…
Listing info 80/100
Reference database of HTTP response status codes with phrase, category and explanation. Look up a specific code or list a whole category (1xx–5xx). Use this when an ag…
Listing info 80/100
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 recent capture dates. Useful…
Listing info 80/100
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 mail servers. Catches …
Listing info 80/100
Generate the current TOTP two-factor code (RFC 6238) from a base32 secret — the same codes authenticator apps produce. Supports 6/8 digits, 30/60-second steps and SHA-…
Listing info 80/100
Returns the current date and time in any IANA time zone, plus Unix seconds/milliseconds, ISO 8601, weekday and day-of-year. Use it whenever an agent needs to know 'now…
Listing info 80/100
Live air quality by city or coordinates from Open-Meteo's CAMS models: US AQI and European AQI with PM2.5, PM10, ozone, NO2, SO2 and CO concentrations. No API key, cac…
Listing info 80/100
Indexed listings, not certifications. Prices and protocols are publisher declarations. How the index works