---
title: "Compare two forecast vintages for a county and trade. Costs 10 credits per call (quick); the response carries X-ATI-Credits-Charged and X-ATI-Credits-Remaining. Enterprise labor module only."
method: GET
path: "/v1/county/forecast/compare"
---

# Compare two forecast vintages for a county and trade. Costs 10 credits per call (quick); the response carries X-ATI-Credits-Charged and X-ATI-Credits-Remaining. Enterprise labor module only.

`GET /v1/county/forecast/compare`

## Request

- Base URL: `https://api.americantradesindex.com`
- URL: `https://api.americantradesindex.com/v1/county/forecast/compare`
- Auth: HTTP bearer

## Query parameters

- `fips` string
- `state` string
- `county` string
- `trade` string, required
- `old_as_of` unknown, required
- `new_as_of` unknown, required

## Response `200`

by period: old vs new

## Other responses

- `400`: invalid_request: detail names the field
- `401`: unauthorized: missing, invalid or revoked key
- `402`: upgrade_required (no active plan), credits_exhausted (period pool used up) or payment_required (last charge failed); body carries an `upgrade` URL
- `429`: rate_limited (120/min per workspace). Every response carries RateLimit-Limit/Remaining/Reset/Policy; a 429 adds Retry-After

---

[API](https://skmtc.dev/americantradesindex/apis/american-trades-index-api.md) · [All operations](https://skmtc.dev/americantradesindex/apis/american-trades-index-api/llms.txt) · [OpenAPI document](https://skmtc.dev/americantradesindex/apis/american-trades-index-api/revisions/5a9de4d8c76b?raw)