Agent Tools
Exact data transformation and current public-web verification for AI agents. The service exposes 50 read-only tools through MCP and REST, with no account or API key required.
https://api.freetoolboxes.com/mcpConnect
Claude Code
claude mcp add --transport http --scope user freetoolboxes https://api.freetoolboxes.com/mcpCursor
Add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"freetoolboxes": { "url": "https://api.freetoolboxes.com/mcp" }
}
}Codex
codex mcp add freetoolboxes --url https://api.freetoolboxes.com/mcpGemini CLI
Add this inside mcpServers in ~/.gemini/settings.json:
"freetoolboxes": {
"httpUrl": "https://api.freetoolboxes.com/mcp"
}ChatGPT
Direct custom MCP connections can use the endpoint above where supported. A public ChatGPT Plugin Directory listing is pending submission and review; FreeToolBoxes will not claim directory availability before approval.
Generic MCP clients
Use Streamable HTTP with the MCP endpoint. The server supports current MCP and stateless 2025 compatibility requests.
Example requests
- Check whether
https://example.com/pageis technically indexable and explain each issue. - Validate this JSON against the supplied schema without fetching any remote references.
- Trace the redirects for this public HTTPS URL and report the final status.
- Convert 100 USD to EUR using the current ECB reference rate and include the reference date.
- Decode this JWT and tell me whether its expiration has passed, without treating its claims as verified.
Tool catalog
Live Web Data
- dns_lookup
- rdap_domain_lookup
- redirect_trace
- http_status_check
- response_headers_inspect
- page_metadata_extract
- page_links_extract
- structured_data_extract
- canonical_check
- robots_fetch_analyze
- sitemap_fetch_analyze
- url_indexability_check
- security_headers_audit
- well_known_discover
- currency_convert_current
- exchange_rates_list
Structured Data
- json_validate
- json_format
- json_pointer_get
- json_patch_apply
- json_diff
- json_schema_validate
- openapi_validate
- yaml_to_json
- json_to_yaml
- csv_to_json
- json_to_csv
- xml_format
- xml_to_json
- query_string_parse
- query_string_build
- text_diff
Exact Utilities
- regex_test
- semver_compare
- semver_satisfies
- cron_describe
- cron_next_runs
- timestamp_convert
- timezone_convert
- date_difference
- duration_parse
- unit_convert
- hash_digest
- uuid_generate
- jwt_decode
- jwt_expiry_check
- base64_encode
- base64_decode
- text_chunk
- redact_sensitive_data
Safety and privacy
Network tools accept public HTTPS targets only and enforce DNS, redirect, response-size, and time limits. Submitted content, documents, JWTs, URLs, and results are processed transiently and are not stored or logged by the application. Aggregate tool name, status, latency, client family, and referral measurements may be recorded. JWT decoding does not verify signatures. Automated redaction is not a compliance guarantee.