Freight Waves

Freight Waves Lookup API

Free reference lookups for valid indexes, qualifiers, levels, lanes, and zip3.

GitHub OpenAPI

Documentation

📖
Documentation
https://knowledge.gosonar.com/
📖
APIReference
https://api.sonar.surf/Help/

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/freight-waves/refs/heads/main/openapi/freight-waves-lookup-api-openapi.yml

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OpenAPI Specification

freight-waves-lookup-api-openapi.yml Raw ↑ 
openapi: 3.0.3
info:
  title: FreightWaves SONAR Authentication Lookup API
  description: The FreightWaves SONAR API delivers freight-market intelligence — index values (rates, volumes, tender rejections, capacity signals, etc.) by geography (market, lane, national) and date. Access is via a bearer token obtained from the Credential authenticate endpoint. Data calls are billable; lookup calls (indexes, qualifiers, levels, lanes, zip3, latest) are free. This specification is a faithful capture of the publicly documented SONAR API reference; it is not published by FreightWaves as OpenAPI.
  version: '2.0'
  x-generated: '2026-07-19'
  x-method: generated
  x-source: https://api.sonar.surf/Help/
  contact:
    name: SONAR Support
    url: https://knowledge.gosonar.com/
servers:
- url: https://api.freightwaves.com
  description: SONAR API production
security:
- bearerAuth: []
tags:
- name: Lookup
  description: Free reference lookups for valid indexes, qualifiers, levels, lanes, and zip3.
paths:
  /Lookup/Indexes:
    get:
      operationId: lookupIndexes
      tags:
      - Lookup
      summary: List valid indexes (tickers)
      description: Return the set of valid SONAR index tickers. Free call.
      responses:
        '200':
          description: Valid indexes.
        '401':
          description: Missing or invalid bearer token.
  /Lookup/Qualifiers:
    get:
      operationId: lookupQualifiers
      tags:
      - Lookup
      summary: List valid qualifiers and tickers
      description: Return valid qualifiers (markets/lanes) and their tickers. Free call.
      responses:
        '200':
          description: Valid qualifiers.
        '401':
          description: Missing or invalid bearer token.
  /Lookup/Levels:
    get:
      operationId: lookupLevels
      tags:
      - Lookup
      summary: List valid qualifier levels
      description: Return valid qualifier levels (e.g. NATIONAL, XMKT). Free call.
      responses:
        '200':
          description: Valid levels.
        '401':
          description: Missing or invalid bearer token.
  /Lookup/Lanes:
    get:
      operationId: lookupLanes
      tags:
      - Lookup
      summary: List valid shipping lanes
      description: Return valid shipping lanes. Free call.
      responses:
        '200':
          description: Valid lanes.
        '401':
          description: Missing or invalid bearer token.
  /Lookup/Zip3:
    get:
      operationId: lookupZip3
      tags:
      - Lookup
      summary: List zip3 reference information
      description: Return zip3 (3-digit ZIP) reference information. Free call.
      responses:
        '200':
          description: Zip3 information.
        '401':
          description: Missing or invalid bearer token.
  /Lookup/Latest:
    get:
      operationId: lookupLatestData
      tags:
      - Lookup
      summary: Get the most recent data points
      description: Return the most recent available data points. Free call.
      responses:
        '200':
          description: Latest data points.
        '401':
          description: Missing or invalid bearer token.
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: 'Bearer token from POST /Credential/authenticate, sent as `Authorization: Bearer <token>`. Tokens are valid for one year.'