---
title: "Procurement-Demand Signal: category share, buyer concentration, momentum."
method: GET
path: "/v1/signals/procurement-demand"
---

# Procurement-Demand Signal: category share, buyer concentration, momentum.

`GET /v1/signals/procurement-demand`

## Request

- Base URL: `https://api.certvas.com`
- URL: `https://api.certvas.com/v1/signals/procurement-demand`
- Auth: API key in header `X-API-Key`

Point-in-time: `as_of` returns only months closed by that date, with no look-ahead. Rows live under the `observations` key.

## Query parameters

- `country` string
- `category` string
- `as_of` string, date
- `from` string, date
- `to` string, date
- `limit` integer

## Response `200`

Demand cells.

- object

## Other responses

- `401`: Missing or invalid API key.
- `402`: A sample-tier key asked for more than the sample tier serves: more rows than its cap, or a lookup in the paid crosswalk. The body and the X-Upgrade-URL header carry the upgrade link. Omit `limit` for the free preview.
- `429`: Rate limited: the per-minute burst limit or the monthly cap was reached.
- `503`: The key store is temporarily unavailable; retry.

---

[API](https://skmtc.dev/certvas/apis/certvas-api.md) · [All operations](https://skmtc.dev/certvas/apis/certvas-api/llms.txt) · [OpenAPI document](https://skmtc.dev/certvas/apis/certvas-api/revisions/f3711b28e0d5?raw)