Agent Bits is an MCP server with 18 tools an agent can call, among them base64_decode, base64_encode, countries_bulk. It answers at https://agentbits.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 23 October 2026, succeeded.
Machine-readable utilities and datasets for AI agents.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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. Use when: - Decode this Base64 string to UTF-8 text - Recover plain text from a Base64- Inputs: value |
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. Use when: - Encode this UTF-8 string as Base64 - Convert plain text into stand Inputs: value |
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. Use when: - Download the full countries dataset as JSON - Cache the complete vers Inputs: version |
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. Use when: - What currency and calling c Inputs: code |
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. Use when: - What is the symbol and number of decima Inputs: code |
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. Use when: - What does HTTP status 404 mean? - Get the standard name and descrip Inputs: code |
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. Use when: - Is this ISBN valid? - Check the checksum for an ISBN-13 book identifier - N Inputs: value |
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. Use when: - Is this string valid JSON? - Parse and normalize a JSON payload before processing - C Inputs: value |
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. Use when: - What language does ISO 639-1 code ja refer to? - Get the native name for langua Inputs: code |
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. Use when: - Does this number pass a Luhn check? - Validate a payment-card-like identifier chec Inputs: value |
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. Use when: - What MIME type should I use for a .webp file? - Look up metada Inputs: query |
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. Use when: - Convert this Unix timestamp to ISO-8601 - Turn an ISO-8601 datetime into epo Inputs: value, input_format |
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. Use when: - What time is 3pm Toronto in Tokyo? - Convert an ISO-8601 date Inputs: datetime, from_timezone, to_timezone |
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. Use when: - What kind of TLD is .io? - Is .ai a country-code or generic top-level domain Inputs: tld |
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. Use when: - Convert 10 miles to kilometers - What is 25°C i Inputs: value, from_unit, to_unit |
url_decode | Decode a percent-encoded URL component into plain text when reading query parameters, path segments, or form values that contain escaped characters. Use when: - Decode this percent-encoded URL component - Convert %20-style escapes back to p Inputs: value |
url_encode | Apply encodeURIComponent-style percent-encoding so query parameters, path segments, or form values are safe to place in a URL. Use when: - Percent-encode this string for a query parameter - Make a path segment URL-safe with encodeURICompone Inputs: value |
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. Use when: - Is this string a valid UUID? - What version and variant is this UUID? Inputs: value |
Every block below points at https://agentbits.dev/mcp. Pick your client and copy.
claude mcp add --transport http agent-bits https://agentbits.dev/mcp
{
"mcpServers": {
"agent-bits": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://agentbits.dev/mcp"]
}
}
}{
"mcpServers": {
"agent-bits": {
"url": "https://agentbits.dev/mcp"
}
}
}{
"servers": {
"agent-bits": {
"type": "http",
"url": "https://agentbits.dev/mcp"
}
}
}{
"context_servers": {
"agent-bits": {
"url": "https://agentbits.dev/mcp"
}
}
}{
"mcpServers": {
"agent-bits": {
"serverUrl": "https://agentbits.dev/mcp"
}
}
}{
"mcpServers": {
"agent-bits": {
"url": "https://agentbits.dev/mcp"
}
}
}name: Agent Bits
version: 0.0.1
schema: v1
mcpServers:
- name: Agent Bits
type: streamable-http
url: https://agentbits.dev/mcp{
"mcpServers": {
"agent-bits": {
"httpUrl": "https://agentbits.dev/mcp"
}
}
}{
"mcpServers": {
"agent-bits": {
"type": "http",
"url": "https://agentbits.dev/mcp"
}
}
}{
"mcpServers": {
"agent-bits": {
"url": "https://agentbits.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fagentbits.dev%2Fmcp&type=streamable_http&id=agent-bits&name=Agent%20Bits
It answered our last check on 23 October 2026 in 229 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
18, as returned by the server's own tools/list on 20 September 2026: base64_decode, base64_encode, countries_bulk, country_lookup, currency_lookup, http_status_lookup, isbn_validate, json_validate, and 10 more.
It answered our last check on 23 October 2026 in 229 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://agentbits.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.rwaldman. Endpoint host: agentbits.dev. ARD identifier: urn:air:io.github.rwaldman:mcp:agentbits.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.