# Agent Bits > Machine-readable utilities and datasets for AI agents. Website: https://agentbits.dev MCP: https://agentbits.dev/mcp API: https://agentbits.dev/api GitHub: https://github.com/rwaldman/agentbits ## Discovery - Catalog: https://agentbits.dev/catalog.json - OpenAPI: https://agentbits.dev/openapi.json - Full docs: https://agentbits.dev/llms-full.txt - For agents: https://agentbits.dev/for-agents - Discovery guide: https://agentbits.dev/docs/discovery.md - MCP install: https://agentbits.dev/docs/mcp.md - MCP registries: https://agentbits.dev/docs/mcp-registries.md - Official server.json: https://agentbits.dev/server.json - Server card: https://agentbits.dev/.well-known/mcp/server-card.json - Payments: https://agentbits.dev/docs/payments.md ## Capability categories - Deterministic utility tools - Curated static datasets - Selected external API integrations ## Tools - base64_decode: Decode a Base64 string into UTF-8 text and report invalid payloads as errors when recovering embedded credentials, tokens, or transport-encoded content. Docs: https://agentbits.dev/tools/base64-decode - base64_encode: Convert a UTF-8 string into standard Base64 when you need a portable text encoding for credentials, binary-safe transport, or embedding data in JSON/HTTP fields. Docs: https://agentbits.dev/tools/base64-encode - countries_bulk: Download the complete versioned countries dataset as JSON for caching, offline use, or multi-country analysis when a single country_lookup call is not enough. Docs: https://agentbits.dev/tools/countries-bulk - country_lookup: Resolve an ISO 3166-1 alpha-2 country code (for example CA, US, JP) to official name, region, currency, calling code, languages, and related country metadata when you already have the two-letter code. Docs: https://agentbits.dev/tools/country-lookup - currency_lookup: Resolve an ISO 4217 currency code such as USD, EUR, or JPY to its name, symbol, decimal places, and which countries use it when you need currency metadata rather than a live exchange rate. Docs: https://agentbits.dev/tools/currency-lookup - http_status_lookup: Explain what a numeric HTTP status code such as 404 or 429 means by returning its standard reason phrase and a short description for debugging or API responses. Docs: https://agentbits.dev/tools/http-status-lookup - isbn_validate: Verify whether an ISBN-10 or ISBN-13 passes checksum rules and return normalized digits when checking book identifiers before catalog or purchase flows. Docs: https://agentbits.dev/tools/isbn-validate - json_validate: Parse a string as JSON to confirm it is well-formed and return a normalized representation when possible before further processing or storage. Docs: https://agentbits.dev/tools/json-validate - language_lookup: Resolve an ISO 639-1 language code such as en, fr, or ja to its English name and native name when you need language metadata from a two-letter code. Docs: https://agentbits.dev/tools/language-lookup - luhn_validate: Run the Luhn checksum on a numeric string such as a payment-card-like identifier to verify the check digit before accepting or storing the value. Docs: https://agentbits.dev/tools/luhn-validate - mime_lookup: Map a file extension such as webp or png, or a MIME type string, to curated Content-Type metadata when setting headers, validating uploads, or choosing a media type. Docs: https://agentbits.dev/tools/mime-lookup - timestamp_convert: Convert Unix epoch seconds or milliseconds to ISO-8601, or an ISO-8601 datetime to Unix epoch values, when bridging APIs that disagree on time formats. Docs: https://agentbits.dev/tools/timestamp-convert - timezone_convert: Convert an ISO-8601 datetime from one IANA timezone to another while preserving the same instant, including daylight-saving-aware wall times such as Toronto to Tokyo. Docs: https://agentbits.dev/tools/timezone-convert - tld_lookup: Identify what a DNS top-level domain such as com, io, or ai is classified as and commonly used for when classifying domains or answering TLD questions. Docs: https://agentbits.dev/tools/tld-lookup - unit_convert: Convert a numeric value between supported length, mass, or temperature units—for example miles to kilometers or Celsius to Fahrenheit—when you need a deterministic unit conversion. Docs: https://agentbits.dev/tools/unit-convert - url_decode: Decode a percent-encoded URL component into plain text when reading query parameters, path segments, or form values that contain escaped characters. Docs: https://agentbits.dev/tools/url-decode - url_encode: Apply encodeURIComponent-style percent-encoding so query parameters, path segments, or form values are safe to place in a URL. Docs: https://agentbits.dev/tools/url-encode - uuid_validate: Check whether a string is a well-formed UUID and, when recognizable, report its version and variant so you can accept or reject identifier inputs confidently. Docs: https://agentbits.dev/tools/uuid-validate ## Datasets - countries: Versioned curated country metadata dataset used by country_lookup and countries_bulk. Docs: https://agentbits.dev/datasets/countries - currencies: Curated currencies dataset (v1, 20 records) used by related lookup tools. Docs: https://agentbits.dev/datasets/currencies - languages: Curated languages dataset (v1, 20 records) used by related lookup tools. Docs: https://agentbits.dev/datasets/languages - mime-types: Curated mime-types dataset (v1, 20 records) used by related lookup tools. Docs: https://agentbits.dev/datasets/mime-types - timezones: Curated timezones dataset (v1, 17 records) used by related lookup tools. Docs: https://agentbits.dev/datasets/timezones