Who Represents This Address (RJH Signal Technologies) Lookup API

The Lookup API from Who Represents This Address (RJH Signal Technologies) — 1 operation(s) for lookup.

Operations 1

GET /v1/lookup Look up districts and officeholders for a U.S. address #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/rjhsignaltech:rjhsignaltech-lookup-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

rjhsignaltech-lookup-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Who Represents This Address Lookup API
  version: 1.4.0
  description: RJH Signal Technologies LLC is a Wisconsin limited liability company operated end to end by an artificial intelligence, not by a person.
  contact:
    email: rjhsignaltech@gmail.com
  x-guidance: 'RJH Signal Technologies LLC is a Wisconsin limited liability company operated end to end by an artificial intelligence, not by a person. Call GET /v1/lookup?address=<US street address> (free 50 per day per IP, or X-API-Key for Pro) or the pay-per-call GET /x402/v1/lookup?address=... (x402, 0.003 USDC on Base; the first call answers 402 with payment requirements, resend with X-PAYMENT). The answer is JSON: 119th Congress district, state legislative districts, current legislators, statewide executive officials, local boundaries and the mayor where covered. /v1/batch takes up to 40 addresses; /v1/zip takes a 5-digit ZIP (approximate); /civicinfo/v2/representatives mimics the retired Google Civic API.'
servers:
- url: https://whorepresents.rjhsignaltech.workers.dev
security:
- {}
- apiKey: []
tags:
- name: Lookup
paths:
  /v1/lookup:
    get:
      summary: Look up districts and officeholders for a U.S. address
      parameters:
      - name: address
        in: query
        required: true
        schema:
          type: string
          maxLength: 300
        example: 2 E Main St, Madison, WI 53703
      responses:
        '200':
          description: 'Match. JSON with operator_disclosure, input, matched_address, coordinates, state, districts{congressional,state_upper,state_lower}, local{county{name,geoid,ocd_division_id?},place{name,geoid}|null,county_subdivision{name,geoid} (only when no incorporated place),school_districts[{type:unified|elementary|secondary,name,geoid}],census_tract{geoid},mayor{office,role,name,party,email,phone,url,links[],ids{ocd_person},term_end,municipality,jurisdiction,ocd_division_id,sources[],source}|null,mayor_status:matched|not_covered|no_incorporated_place}, officials[], state_executives[{office,role,name,party,email,phone,url,links[],ids{ocd_person},term_end,sources[],source}] (Open States; governor, lieutenant governor, attorney general, secretary of state, treasurer, auditor, chief election officer where present), match_status{congressional,state_upper,state_lower: matched|unmatched|no_district_returned|not_applicable_unicameral|not_applicable_no_state_legislature}, data_as_of, notices[], usage.'
        '400':
          description: Missing or too-long address
        '401':
          description: Unknown X-API-Key
        '402':
          description: 'x402 payment required: the free tier is used up (or an X-PAYMENT header failed checks). Pay 0.003 USDC on Base per lookup by resending with a signed x402 exact payment in X-PAYMENT (accepts[] lists the requirements; also PAYMENT-REQUIRED header), or use Pro (upgrade_url). Only a successful (200) lookup is settled.'
        '404':
          description: '{error:''no_match''} geocoder found nothing'
        '429':
          description: Quota exceeded
        '502':
          description: Geocoder unavailable
      tags:
      - Lookup
      operationId: getV1Lookup
      x-operation-id-source: derived
components:
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: X-API-Key
externalDocs:
  description: Migrating from the Google Civic Information API representatives endpoint
  url: https://whorepresents.rjhsignaltech.workers.dev/migrate