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FRTracker — Federal Regulatory Research

by frtracker.app · remote · no sign-in to list tools · v1.0.0 · published by app.frtracker

Source-linked US federal regulations: CFR provision history, obligations, rules, comments.

Changes · 2
CompareRegistry entry

10 tools: 2 change things and 8 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http regulatory-research https://frtracker.app/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

10 tools

Changes things 2Claude Code: ask
  • recent_cfr_changesMost recent detected changes to CFR text (title, part, name, dates), newest first.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Most recent detected changes to CFR text (title, part, name, dates), newest first. No API key required.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • rules_amendingWhich final rules amend a CFR part or section, read from each rule's own amendatory instructions ("Amend § 52.2120 by...").No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Which final rules amend a CFR part or section, read from each rule's own amendatory instructions ("Amend § 52.2120 by..."). Returns the rules, the sections each addresses, and dates. This reports what a rule SAYS it amends — it is not an attribution of any observed text change to that rule. Covers 2020-present; absence means not indexed, not that no rule amended it. No API key required.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
Only reads 8Claude Code: allow
  • get_provision_historyDocumented change history for a CFR provision by canonical id (e.g.No findings

    Why it is in this group

    • The name "get_provision_history" says "get": a word for reading.
    Description, as the server wrote it
    Documented change history for a CFR provision by canonical id (e.g. "21-cfr-1304.04(a)"): before/after text, computed redline, observed dates, and candidate final rules. 404 when the provision is not in the documented-change set — absence of a documented change is not a claim that nothing changed. No API key required.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • get_requirementDetail for one extracted obligation by id, including its source rule and citation URL.No findings

    Why it is in this group

    • The name "get_requirement" says "get": a word for reading.
    Description, as the server wrote it
    Detail for one extracted obligation by id, including its source rule and citation URL. Requires an API key.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • get_rule_commentsPublic comments for a Federal Register document (organization, title, date, body where available).No findings

    Why it is in this group

    • The name "get_rule_comments" says "get": a word for reading.
    Description, as the server wrote it
    Public comments for a Federal Register document (organization, title, date, body where available). Coverage is partial and stated in the response. Requires an API key.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • get_statsAggregate corpus statistics: documents, obligations, pairs, agencies, coverage dates.No findings

    Why it is in this group

    • The name "get_stats" says "get": a word for reading.
    Description, as the server wrote it
    Aggregate corpus statistics: documents, obligations, pairs, agencies, coverage dates. No API key required.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • list_obligationsList extracted regulatory obligations ("who must do what") with filters: agency, deontic class, free text.No findings

    Why it is in this group

    • The name "list_obligations" says "list": a word for reading.
    Description, as the server wrote it
    List extracted regulatory obligations ("who must do what") with filters: agency, deontic class, free text. Obligations are machine-extracted with quality tiers; they are not legal advice. Requires an API key.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • list_rulesList Federal Register documents with filters: agency slug, document type, rulemaking pathway (interim_final/temporary/direct_final = notice-and-comment bypass classes), or docket i…No findings

    Why it is in this group

    • The name "list_rules" says "list": a word for reading.
    Description, as the server wrote it
    List Federal Register documents with filters: agency slug, document type, rulemaking pathway (interim_final/temporary/direct_final = notice-and-comment bypass classes), or docket id. Requires an API key.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • lookup_provisionLook up a CFR provision by citation (e.g.No findings

    Why it is in this group

    • The name "lookup_provision" says "lookup": a word for reading.
    Description, as the server wrote it
    Look up a CFR provision by citation (e.g. "21 CFR 1304.04") or by an exact quotation, optionally as of a past date. Returns the provision text with a ProvisionEvidence object (source, snapshot date, hashes). Explicitly reports ambiguity or no-match instead of guessing. Requires a free API key.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • search_regulationsFull-text search over Federal Register documents and extracted obligations (FTS5/BM25).No findings

    Why it is in this group

    • The name "search_regulations" says "search": a word for reading.
    Description, as the server wrote it
    Full-text search over Federal Register documents and extracted obligations (FTS5/BM25). Totals are approximate (total_exact: false). Requires an API key.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http regulatory-research https://frtracker.app/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__regulatory-research__lookup_provision",
      "mcp__regulatory-research__get_provision_history",
      "mcp__regulatory-research__get_stats",
      "mcp__regulatory-research__search_regulations",
      "mcp__regulatory-research__list_rules",
      "mcp__regulatory-research__list_obligations",
      "mcp__regulatory-research__get_requirement",
      "mcp__regulatory-research__get_rule_comments"
    ],
    "ask": [
      "mcp__regulatory-research__rules_amending",
      "mcp__regulatory-research__recent_cfr_changes"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as regulatory-research. Review it before you use it.