generated: '2026-08-09'
method: derived
status: candidate
source: openapi/planomy-tax-data-openapi.yml
description: Planomy ships no MCP server. Probed for one on 2026-08-09 — https://planomy.net/mcp and /.well-known/mcp.json
  both 404, no server is referenced from https://planomy.net/data/, from llms.txt, or from any registry,
  and no npm package under the planomy name exists. The tools below are an API Evangelist-derived candidate
  surface, one per real OpenAPI operation, not something Planomy publishes. Do not read this as an MCP
  claim on the provider's behalf.
searched:
- url: https://planomy.net/mcp
  http_status: 404
- url: https://planomy.net/.well-known/mcp.json
  http_status: 404
- url: https://registry.npmjs.org/-/v1/search?text=planomy
  http_status: 200
  result: 0 packages
- source: https://planomy.net/llms.txt
  result: no MCP endpoint referenced
server:
  name: planomy-tax-data
  transport: null
  url: null
  published: false
tools:
- name: list_tax_data_years
  description: List the tax years Planomy has published a dataset for, with the latest year and the URL
    template used to resolve a year to its file.
  source_operation: openapi/planomy-tax-data-openapi.yml#getTaxDataIndex
  http: GET https://planomy.net/tax-data/index.json
  input_schema:
    type: object
    properties: {}
    required: []
  read_only: true
- name: get_tax_data_year
  description: Get the complete US tax and retirement dataset for one year — federal brackets and standard
    deduction, FICA rates and wage base, Social Security COLA and earnings test, Medicare premiums and
    IRMAA tiers, contribution limits, phase-outs, RMD ages and state presets — with a source citation
    for every section.
  source_operation: openapi/planomy-tax-data-openapi.yml#getTaxDataYear
  http: GET https://planomy.net/tax-data/{year}.json
  input_schema:
    type: object
    properties:
      year:
        type: integer
        description: A four-digit tax year present in the index manifest. Currently only 2026.
    required:
    - year
  read_only: true
notes:
- Every candidate tool is read-only and unauthenticated, which makes this one of the safer APIs to expose
  to an agent — no credential to leak, no side effect to guard. See agentic-access/planomy-tax-data-agentic-access.yml.
- 'An implementer should resolve the year through list_tax_data_years rather than hard-coding it, and
  should cache on the ETag: the data changes a handful of times a year, driven by IRS, SSA and CMS publication
  dates.'
deployment:
  mode: none
  verified: derived
  tools: 2
  checked: '2026-08-12'
  source: catalog MCP census