Hardiness Zone

USDA Plant Hardiness Zone for a US ZIP code — the standard planting zone (e.g.

Overview

USDA Plant Hardiness Zone for a US ZIP code — the standard planting zone (e.g. "9b") plus its average annual minimum-temperature range (°F) and the ZIP centroid. Keyless, public-domain (USDA PHZM). The "what grows where" primitive for gardening, landscaping, nursery, and agronomy agents.

Endpoint

Method	Endpoint	Price	Description
GET	/v1/marketplace/api/hardiness-zone	$0.00115	Invoke Hardiness Zone (Code) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i https://api.jarvisclaw.ai/v1/marketplace/api/hardiness-zone

# 2. Pay it (the SDK signs and retries for you)
curl -H "X-PAYMENT: <signed-payload>" https://api.jarvisclaw.ai/v1/marketplace/api/hardiness-zone

Open in the marketplace