Fatstack MCP Tools
Fatstack exposes 14 tools. Each one has its own page with the configuration for every client that can run this server.
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fatstack__free_demofatstack free demo
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echo__echo_jsonecho echo json
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json-schema-validate__json_schema_validatejson schema validate json schema validate
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html-to-markdown__html_to_markdownhtml to markdown html to markdown
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url-metadata__url_metadataurl metadata url metadata
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csv-to-json__csv_to_jsoncsv to json csv to json
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text-language-detect__text_language_detecttext language detect text language detect
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regex-test__regex_testregex test regex test
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unit-convert__unit_convertunit convert unit convert
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cron-explain__cron_explaincron explain cron explain
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uuid-batch__uuid_batchuuid batch uuid batch
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markdown-lint__markdown_lintmarkdown lint markdown lint
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askzephy-quick-scan__sol_auditaskzephy quick scan sol audit
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askzephy-quick-scan__sol_quick_scanaskzephy quick scan sol quick scan
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.