Federal Agency Codes and Acronyms (OIRA Reginfo.gov)

reginfooira/agency-list

The complete list of federal agencies that Reginfo.gov uses in regulatory review, as JSON: agency name, acronym and the four-digit agency code that prefixes every Regulation Identifier Number (RIN). About 450 agencies, taken from the OIRA XML report file of the day. U.S. Office of Management and Budget data, served by Eden Engine; not an official OIRA product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

Office of Information and Regulatory Affairs (Reginfo.gov)

Source: Office of Information and Regulatory Affairs, Reginfo.gov (reginfo.gov). Served by Eden Engine; not an official OIRA product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "reginfooira/agency-list" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "reginfooira/agency-list" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "reginfooira/agency-list", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "reginfooira/agency-list", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 25, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "runDate",
    "count",
    "agencies"
  ],
  "properties": {
    "count": {
      "type": "integer",
      "description": "Number of agencies in the file."
    },
    "runDate": {
      "type": [
        "string",
        "null"
      ],
      "description": "The RUNDATE stamped on the file, the day it was generated; null when the file carries none."
    },
    "agencies": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "name",
          "acronym",
          "agencyCode"
        ],
        "properties": {
          "name": {
            "type": [
              "string",
              "null"
            ],
            "description": "Agency name; null when the file leaves it empty."
          },
          "acronym": {
            "type": [
              "string",
              "null"
            ],
            "description": "Agency acronym; null when the file leaves it empty."
          },
          "agencyCode": {
            "type": [
              "string",
              "null"
            ],
            "description": "Four-digit agency code, the prefix of a RIN; null when the file leaves it empty."
          }
        },
        "additionalProperties": false
      },
      "description": "One entry per agency; the first is the 'All Agencies' pseudo-entry with code 0000."
    }
  },
  "description": "The agency list in the file's own order.",
  "additionalProperties": false
}