---
title: "Office market source discovery and measurement limits"
method: POST
path: "/api/locus_office_source_guide"
tags: ["office", "employment", "provenance", "source-discovery", "read-only", "free", "free"]
---

# Office market source discovery and measurement limits

`POST /api/locus_office_source_guide`

## Request

- Base URL: `https://api.locus.report`
- URL: `https://api.locus.report/api/locus_office_source_guide`
- Auth: none required

For one county FIPS, list public employment and commercial office-report source leads with geography, methods, reuse cautions and explicit not-checked items. Does not fetch or fabricate office vacancy, occupancy, remote-work or a comparable time series. National discovery-only, read-only. Direct flat-body route for this one free resource; no API key, payment, or catalog wrapper. Return only the cited bounded evidence described here; this route never produces a paid brief or full report.

## Request body

- object
  - `stateFips` string, required: Two-digit state FIPS, e.g. 37 for NC.
  - `countyFips3` string, required: Three-digit county FIPS, e.g. 183 Wake, 105 Lee, 001 Alamance.

## Response `200`

Free cited evidence response.

- object

## Other responses

- `400`: Invalid request body.
- `429`: Rate limited.

---

[API](https://skmtc.dev/locus/apis/locus-api.md) · [All operations](https://skmtc.dev/locus/apis/locus-api/llms.txt) · [OpenAPI document](https://skmtc.dev/locus/apis/locus-api/revisions/ba7786b74adb?raw)