CERA® API

Natural-catastrophe and weather hazard, delivered at the point of underwriting. One RESTful API returns the full exceedance curve (threshold, probability and return period) for any location on Earth, for every peril your key is licensed for.

Embed the CERA® map in your workbench → First call in 5 minutes

Daily perils

12

plus expanding & lite modes

Per sync call

25

peril-event combinations

Per batch upload

100k

rows of scheduled risks

Coverage

Global

weather & NatCat models

Quickstart →

Make your first authenticated call in under five minutes.

Embedded map →

Drop the CERA® map into your own underwriting workbench: event overlays and your locations, geospatially.

API explorer →

Build a request and inspect the response. No code required.

Batch processing →

Run a full schedule of risks, up to 100,000 rows per upload.

Python SDK →

Idiomatic client for analysts and engineering teams.

What the API returns

Most hazard services return a single score or a lookup value. CERA® requests return the full hazard exceedance curve for the location: an array of thresholds, the probability of exceeding each threshold, and the equivalent return periods. That is the form a pricing actuary or exposure manager can build on: it feeds your own vulnerability curves and loss models rather than replacing them.

Two ways to work

Mode	Endpoints	Latency	Limits	Use when
Synchronous	`/v1/lite`, `/v2/in-depth`	Low (request/response)	≤ 25 peril-event combinations per request	Single-risk lookups at point of underwriting; interactive tooling
Asynchronous	`/v1/in-depth/batch`	Minutes, depending on size	Up to 100,000 rows per upload; key-tier dependent	Full schedules of risks, portfolio sweeps, renewal books

Base URL

https://prod-external-weather-api.birdseyeviewtechnologies.com

All endpoints are relative to this base URL. All requests must be made over HTTPS.