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The real catalog of tools for AI agents

Google tells you what exists. Faceabot tells you what holds up.

44,737real tools
29,284callable over HTTPS
19,874measured
6,054proven reliable
Payload Validator Reliable (measured) · 100% over 42 checks Does the job (tested) · 42/42

Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.

MCP endpoint : https://payload-validator.gumballtools.com/api/mcp · website · measurements and details
Smart Drawio Not measured yet

Generate, validate, repair and style editable draw.io XML diagrams.

Package npm : @yunshenwuchuxun/smart-drawio-mcp · website · measurements and details
oxml-mcp Not measured yet

XML tools for agents: XPath queries, inspection, and schema validation in Rust.

Package oci : ghcr.io/sebastienrousseau/oxml-mcp:0.0.11 · website · measurements and details
UAParse Reliable (measured) · 100% over 37 checks

Parse a User-Agent: browser, OS, device, plus bot, search crawler, AI crawler and AI agent flags.

MCP endpoint : https://uaparse.mike-tusa.workers.dev/mcp · website · measurements and details
SepaCheck Validator Not measured yet

Validate one SEPA XML file with the free checksepa.com API.

Package npm : sepa-validator-mcp · website · measurements and details
Excel MCP Server (FsOpenXmlDsl) Not measured yet

Excel tools for AI agents: read/write, decompile to F#/C#/XML/JSON, or build from XML/JSON.

Package nuget : Kookerella.FsOpenXmlDsl.Mcp · website · measurements and details
tools Reliable (measured) · 100% over 3 checks

20 free dev tools: JSON/YAML, XML/SQL, Cron, SEO, QR code, URL shortener, cron tasks, files

MCP endpoint : https://www.jiebang.site/mcp · measurements and details
XML Schema element count, markup discarded Not measured yet

XML Schema element count, markup discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/xsd-ok/mcp · website · measurements and details
drawio-mcp Not measured yet

MCP server for creating and editing draw.io / diagrams.net XML files programmatically.

Package pypi : drawio-mcp · website · measurements and details
lintlab Sitemap Validator Private (key required)

Find, validate and extract XML sitemaps (gzip, indexes) with lastmod. Pay per result on Apify.

MCP endpoint : https://mcp.apify.com?tools=lintlab/sitemap-doctor · website · measurements and details
MIME xml Not measured yet

Public MIME token for xml.

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/mime-xml/mcp · website · measurements and details
XML declaration shape, markup discarded Not measured yet

XML declaration shape, markup discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/xml-decl-ok/mcp · website · measurements and details
XML namespace count, markup discarded Not measured yet

XML namespace count, markup discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/xml-ns-ok/mcp · website · measurements and details
markdown-formatter Not measured yet

AI Answer Copier — Convert Markdown to PDF, DOCX, HTML, LaTeX, CSV, JSON, XML, XLSX, RTF, PNG

Package npm : @xjtlumedia/markdown-mcp-server · website · measurements and details
XML well-formed check, body discarded Not measured yet

XML well-formed check, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/xml-ok/mcp · website · measurements and details
Sezzlee XML Not measured yet

Query local XML documents with XPath, paged and sandboxed to one folder. Read-only.

Package npm : @sezzlee/xml-mcp · website · measurements and details
Fonto Docs Being measured · 50% over 2 checks Real task being tested · 1/1

Fonto (FontoXML) documentation for AI tools. Converts DITA XML to Markdown on demand.

MCP endpoint : https://fonto-docs.elliat.nl/mcp · website · measurements and details
Word MCP Server (FsWordDsl) Not measured yet

Word tools for AI agents: read/write, decompile to F#/C#/XML/JSON, or build from XML/JSON.

Package nuget : Kookerella.FsWordDsl.Mcp · website · measurements and details
StringLane Not measured yet

Check, translate and fix app localization files — ARB, iOS strings, Android XML, i18next JSON.

Package npm : @stringlane/cli · website · measurements and details
XML tag count, body discarded Not measured yet

XML tag count, body discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/xml-tag-count/mcp · website · measurements and details

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