Crexi Listing API

The Crexi Listing API is a one-way data sync that lets qualifying organizations — MLSs and Realtor Boards, large brokerages and franchise networks, and real estate data providers — automatically push their listings onto Crexi.com. Crexi accepts RESO, RETS, WebAPI and XML feeds, listings sync daily, and Crexi states it is 100% compliant with the RESO Data Dictionary across 100+ partner organizations. Access is granted through integrations@crexi.com after a data and legal review, execution of a Listing API agreement, API token issuance and staging-environment testing.

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/crexi-listing-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 email required.

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

API entry from apis.yml

apis.yml Raw ↑
aid: crexi-listing-api
name: Crexi Listing API
description: The Crexi Listing API is a one-way data sync that lets qualifying organizations — MLSs and
  Realtor Boards, large brokerages and franchise networks, and real estate data providers — automatically
  push their listings onto Crexi.com. Crexi accepts RESO, RETS, WebAPI and XML feeds, listings sync daily,
  and Crexi states it is 100% compliant with the RESO Data Dictionary across 100+ partner organizations.
  Access is granted through integrations@crexi.com after a data and legal review, execution of a Listing
  API agreement, API token issuance and staging-environment testing.
humanURL: https://learn.crexi.com/listing-api-overview-crexi-help-center
tags:
- Data Syndication
- RESO
- Listings
properties:
- type: Documentation
  url: https://learn.crexi.com/listing-api-overview-crexi-help-center
- type: Conformance
  url: conformance/crexi-conformance.yml
x-access:
  model: partner-onboarded
  contact: integrations@crexi.com
  note: No public base URL is published; the endpoint and API token are provisioned per partner during
    onboarding, so no baseURL is asserted here.