FreeToolBoxes Agent Tools is listed as active in the registry but did not answer our last check. It exposes 50 tools.
Exactly 50 data transformation and live web verification tools for AI agents.
The linked repository no longer exists on GitHub — it was deleted or made private.
Uptime history
32 days of history · worst day 0%
32 days agonow
0.0%
Uptime 24h
0 of 91 checks
50
Tools
read from the server
166 ms
Response time
average over 24h
open, no key
Access
streamable-http
FreeToolBoxes Agent Tools does not always answer
Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.
run in your terminal
claude mcp add agent-tools --transport http https://api.freetoolboxes.com/mcp~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"agent-tools": {
"url": "https://api.freetoolboxes.com/mcp"
}
}
}~/.codex/config.toml
[mcp_servers.agent-tools]
url = "https://api.freetoolboxes.com/mcp".cursor/mcp.json
{
"mcpServers": {
"agent-tools": {
"url": "https://api.freetoolboxes.com/mcp"
}
}
}.vscode/mcp.json
{
"mcpServers": {
"agent-tools": {
"url": "https://api.freetoolboxes.com/mcp"
}
}
}Available tools 50
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
json
json_diff
Use this when you need deterministic RFC 6902 operations that transform one JSON value into another.
json_format
Use this when you need deterministic JSON formatting or minification.
json_patch_apply
Use this when you need to safely apply RFC 6902 operations to a JSON document.
json_pointer_get
Use this when you need the exact value addressed by an RFC 6901 JSON Pointer.
json_schema_validate
Use this when you need local JSON Schema validation without fetching remote references.
json_to_csv
Use this when you need an array of flat JSON objects serialized as standards-compatible CSV.
json_to_yaml
Use this when you need a JSON value serialized as deterministic YAML.
json_validate
Use this when you need exact JSON syntax validation and the top-level value type.
base64
base64_decode
Use this when you need Base64 decoded to UTF-8 text with invalid UTF-8 reported.
base64_encode
Use this when you need UTF-8 text encoded as standard or URL-safe Base64.
cron
cron_describe
Use this when you need an exact field-by-field explanation of a cron expression.
cron_next_runs
Use this when you need deterministic upcoming times for a cron expression in an IANA time zone.
jwt
jwt_decode
Use this when you need to inspect JWT header and payload claims without verifying its signature.
jwt_expiry_check
Use this when you need to inspect exp, nbf, and iat timing without verifying the JWT signature.
page
page_links_extract
Use this when you need deduplicated internal and external links from a live HTML page.
page_metadata_extract
Use this when you need title, description, canonical, robots, language, and social metadata from a live HTML page.
semver
semver_compare
Use this when you need exact Semantic Version precedence comparison.
semver_satisfies
Use this when you need to test a Semantic Version against a range.
string
query_string_build
Use this when you need deterministic URL query encoding from scalar or array values.
query_string_parse
Use this when you need a URL query string parsed with duplicate values preserved.
text
text_chunk
Use this when you need deterministic bounded text chunks with optional overlap for downstream AI processing.
text_diff
Use this when you need an exact line-level difference between two bounded text values.
xml
xml_format
Use this when you need XML syntax checked and deterministically formatted without DTD or entities.
xml_to_json
Use this when you need XML converted to JSON while blocking DTD and entity expansion attacks.
canonical
canonical_check
Use this when you need to verify a page canonical against its final live URL.
csv
csv_to_json
Use this when you need quoted CSV parsed into JSON rows with explicit size limits.
currency
currency_convert_current
Use this when you need a current, source-attributed currency conversion using ECB reference rates.
date
date_difference
Use this when you need the exact elapsed duration between two instants.
dns
dns_lookup
Use this when you need current public DNS records for a domain.
duration
duration_parse
Use this when you need an ISO or human duration normalized to exact units.
exchange
exchange_rates_list
Use this when you need the current currencies and EUR reference rates published by the ECB.
hash
hash_digest
Use this when you need a cryptographic digest of UTF-8 text using a Web Crypto algorithm.
http
http_status_check
Use this when you need the live status and latency of a public HTTPS URL.
openapi
openapi_validate
Use this when you need structural validation of an OpenAPI 3.x document without resolving remote references.
rdap
rdap_domain_lookup
Use this when you need current domain registration data from the authoritative RDAP service.
redact
redact_sensitive_data
Use this when you need common secrets and personal identifiers replaced before further processing.
redirect
redirect_trace
Use this when you need the complete HTTPS redirect path and final response.
regex
regex_test
Use this when you need safe RE2-compatible matching without catastrophic backtracking or backreferences.
response
response_headers_inspect
Use this when you need normalized live response headers from a public HTTPS URL.
robots
robots_fetch_analyze
Use this when you need the live robots.txt rules and sitemap declarations for a site.
security
security_headers_audit
Use this when you need a focused audit of important HTTP security headers on a live URL.
sitemap
sitemap_fetch_analyze
Use this when you need to inspect a live XML sitemap or sitemap index.
structured
structured_data_extract
Use this when you need JSON-LD and supported microdata types from a live page.
timestamp
timestamp_convert
Use this when you need an ISO date, Unix seconds, and Unix milliseconds for the same instant.
timezone
timezone_convert
Use this when you need one instant represented in a specific IANA time zone.
unit
unit_convert
Use this when you need an exact conversion among supported length, mass, volume, data, speed, angle, or temperature units.
url
url_indexability_check
Use this when you need a live technical assessment of whether a URL is crawlable and indexable.
uuid
uuid_generate
Use this when you need one or more cryptographically random UUID version 4 identifiers.
well
well_known_discover
Use this when you need to find standard machine-readable discovery documents on a public site.
yaml
yaml_to_json
Use this when you need safe YAML converted to structured JSON.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://api.freetoolboxes.com/mcp | streamable-http | answering | 166 ms | 15 min ago |
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FreeToolBoxes Agent Tools — questions
Answers built from our own checks of this server.
What can FreeToolBoxes Agent Tools do?
It exposes 50 tools, read directly from the server on our last check. Among them: base64_decode, base64_encode, canonical_check, cron_describe, cron_next_runs, csv_to_json and 44 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README.
How MCP servers expose tools in the first place →
What is FreeToolBoxes Agent Tools mostly used for?
Its tools cluster around json, base64 and page. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is FreeToolBoxes Agent Tools working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 166 ms. The bar chart above shows every period we have measured.
Is FreeToolBoxes Agent Tools still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
The registry lists FreeToolBoxes Agent Tools as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect FreeToolBoxes Agent Tools?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does FreeToolBoxes Agent Tools need an API key?
No. FreeToolBoxes Agent Tools completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 50 of them are readable on this page. This is what we observed, not what the docs claim.