Koskamo

FRTracker MCP

A read-only Model Context Protocol endpoint that allows AI agents to query US federal regulations, including CFR provision history, Federal Register documents, extracted obligations, and public comments, with source-linked evidence.

Visit FRTracker

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

FRTracker MCP logo, by FRTrackerVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-07Operated by FRTracker
You need:free API key sent as an Authorization: Bearer header
MCP endpoint (Streamable HTTP)
https://frtracker.app/mcp
Vendor documentation

What its tools do

10 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Read-only (10)

10 of 10 have a description · 10 of 10 declare behavior hints · 9 of 9 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Passed Official MCP Registry namespace is tied to frtracker.app ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Look up CFR provisions and documented provision history
  • Search Federal Register documents and extracted obligations
  • List recent CFR changes and corpus statistics
  • Retrieve public comments for a specific Federal Register document

Source and maintenance

Vendor evidenceRegistry 1.0.0
mcp-registry: app.frtracker/regulatory-research@1.0.0Source repositoryProject website
Maintenance checked

Protocol and capabilities

Server
frtracker 1.0.0
MCP protocol negotiated in check
2025-03-26
Tools
10 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {}
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

FRTracker (frtracker.app) tracks the U.S. Federal Register and Code of Federal Regulations, decomposing rules into individual binding obligations. Answers come only from its corpus; where evidence is insufficient, tools return explicit no-match or ambiguous results rather than guesses. Comment-to-change data is correspondence, not causation. Search totals are approximate. Tools marked as requiring a key need a free FRTracker API key sent as "Authorization: Bearer <key>" (get one at https://frtracker.app/developers); provision history, amendment lookups, CFR changes, and stats work without one. Cite FRTracker URLs from responses — they are stable and citation-grade.

Tools

10 advertised

lookup_provision — Lookup Provision
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

lookup_provision input schema
{
  "type": "object",
  "required": [
    "q"
  ],
  "properties": {
    "q": {
      "type": "string",
      "description": "Citation (\"21 CFR 1304.04\") or an exact quote from regulatory text"
    },
    "as_of": {
      "type": "string",
      "description": "Optional YYYY-MM-DD snapshot upper bound (not in the future)"
    }
  }
}
lookup_provision annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
get_provision_history — Get Provision History
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

get_provision_history input schema
{
  "type": "object",
  "required": [
    "canonical_id"
  ],
  "properties": {
    "canonical_id": {
      "type": "string",
      "description": "Canonical provision id, e.g. \"21-cfr-1304.04(a)\""
    }
  }
}
get_provision_history annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
rules_amending — Rules Amending
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

rules_amending input schema
{
  "type": "object",
  "required": [
    "title",
    "part"
  ],
  "properties": {
    "part": {
      "type": "string",
      "description": "CFR part, e.g. \"52\""
    },
    "limit": {
      "type": "integer",
      "description": "Max rules (default 50, max 200)"
    },
    "title": {
      "type": "string",
      "description": "CFR title number, e.g. \"40\""
    },
    "section": {
      "type": "string",
      "description": "Optional section id, e.g. \"52.2120\". Omit for all rules touching the part."
    }
  }
}
rules_amending annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
recent_cfr_changes — Recent Cfr Changes
Advertised by the server during the last successful anonymous check.
Advertised read-only

Most recent detected changes to CFR text (title, part, name, dates), newest first. No API key required.

recent_cfr_changes input schema
{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "description": "Max rows (default 50, max 200)"
    }
  }
}
recent_cfr_changes annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
get_stats — Get Stats
Advertised by the server during the last successful anonymous check.
Advertised read-only

Aggregate corpus statistics: documents, obligations, pairs, agencies, coverage dates. No API key required.

get_stats input schema
{
  "type": "object",
  "properties": {}
}
get_stats annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
search_regulations — Search Regulations
Advertised by the server during the last successful anonymous check.
Advertised read-only

Full-text search over Federal Register documents and extracted obligations (FTS5/BM25). Totals are approximate (total_exact: false). Requires an API key.

search_regulations input schema
{
  "type": "object",
  "required": [
    "q"
  ],
  "properties": {
    "q": {
      "type": "string",
      "description": "Search query (min 3 chars)"
    },
    "tab": {
      "enum": [
        "all",
        "fr",
        "obligations"
      ],
      "type": "string",
      "description": "Result type (default all)"
    },
    "page": {
      "type": "integer",
      "description": "Page number (default 1)"
    },
    "limit": {
      "type": "integer",
      "description": "Max results (default 25, max 50)"
    }
  }
}
search_regulations annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
list_rules — List Rules
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

list_rules input schema
{
  "type": "object",
  "properties": {
    "page": {
      "type": "integer",
      "description": "Page number (default 1)"
    },
    "type": {
      "enum": [
        "final_rule",
        "proposed_rule",
        "notice",
        "correction"
      ],
      "type": "string",
      "description": "Document type"
    },
    "limit": {
      "type": "integer",
      "description": "Max rows (default 25, max 100)"
    },
    "agency": {
      "type": "string",
      "description": "Agency slug, e.g. \"environmental-protection-agency\""
    },
    "docket": {
      "type": "string",
      "description": "Docket id"
    },
    "pathway": {
      "enum": [
        "interim_final",
        "temporary",
        "direct_final",
        "final",
        "other"
      ],
      "type": "string",
      "description": "Rulemaking pathway"
    }
  }
}
list_rules annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
list_obligations — List Obligations
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

list_obligations input schema
{
  "type": "object",
  "properties": {
    "q": {
      "type": "string",
      "description": "Full-text filter within obligations"
    },
    "page": {
      "type": "integer",
      "description": "Page number (default 1)"
    },
    "limit": {
      "type": "integer",
      "description": "Max rows (default 25, max 100)"
    },
    "agency": {
      "type": "string",
      "description": "Agency slug"
    },
    "deontic": {
      "enum": [
        "MUST",
        "MUST_NOT",
        "SHOULD",
        "MAY",
        "EXEMPT"
      ],
      "type": "string",
      "description": "Deontic class"
    }
  }
}
list_obligations annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
get_requirement — Get Requirement
Advertised by the server during the last successful anonymous check.
Advertised read-only

Detail for one extracted obligation by id, including its source rule and citation URL. Requires an API key.

get_requirement input schema
{
  "type": "object",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "Requirement id"
    }
  }
}
get_requirement annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
get_rule_comments — Get Rule Comments
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

get_rule_comments input schema
{
  "type": "object",
  "required": [
    "doc"
  ],
  "properties": {
    "doc": {
      "type": "string",
      "description": "Federal Register document number, e.g. \"2024-12345\""
    },
    "offset": {
      "type": "integer",
      "description": "Row offset for pagination"
    }
  }
}
get_rule_comments annotations
{
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (2 of 2 answered).

  1. 2026-11-07: 1 of 1 checks answered
  2. 2026-11-09: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
333 ms
95th percentile latency
333 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 333 ms · metadata changed · 10 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http frtracker-mcp https://frtracker.app/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add frtracker-mcp --url https://frtracker.app/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable frtracker-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "frtracker-mcp": {
      "url": "https://frtracker.app/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "frtracker-mcp": {
      "type": "streamableHttp",
      "url": "https://frtracker.app/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start frtracker-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "frtracker-mcp": {
      "type": "http",
      "url": "https://frtracker.app/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http frtracker-mcp https://frtracker.app/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://frtracker.app/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "frtracker-mcp": {
      "serverUrl": "https://frtracker.app/mcp"
    }
  }
}

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