---
title: "Raw spot price-change events for one instance type."
method: GET
path: "/v1/spot/events"
tags: ["spot"]
---

# Raw spot price-change events for one instance type.

`GET /v1/spot/events`

## Request

- Base URL: `https://cloud.trycorpus.ai`
- URL: `https://cloud.trycorpus.ai/v1/spot/events`
- Auth: one of:
  - API key in header `PAYMENT-SIGNATURE`
  - API key in header `Authorization`
  - API key in header `X-Api-Key`

Every price change for the type in the window, with exact timestamp, availability zone and product (OS). Sorted by time. Repeated identical prices are dropped by default (`include_repeats=true` keeps them). Up to `limit` rows; when `truncated` is true, continue with `from` = `next_from`.

## Query parameters

- `provider` 'aws' | 'gcp' | 'azure', required
- `region` string, required
- `instance` string, required
- `from` string, date-time
- `to` string, date-time
- `az` string
- `product` string
- `include_repeats` boolean
- `limit` integer

## Response `200`

Events.

- EventList
  - `provider` string
  - `region` string
  - `instance` string
  - `from` string, date-time
  - `to` string, date-time
  - `count` integer
  - `truncated` boolean: True when `limit` was hit.
  - `next_from` string, date-time, nullable: Pass as `from` to continue when truncated.
  - `events` Event[]
    - `ts` string, date-time, required: When the price took effect (UTC).
    - `az` string, required: Availability zone or zone id; the region name for GCP.
    - `product` string, required: Product / OS the price applies to.
    - `price` number, required: USD per hour.

## Other responses

- `400`: Invalid or missing parameter.
- `402`: Payment required. The x402 v2 payment requirements are in the PAYMENT-REQUIRED header (base64 JSON) and repeated as the JSON body: `accepts[]` lists every offer (USDC on 13 networks: eip155:8453, eip155:143, eip155:1, eip155:43114, eip155:42161, eip155:10, eip155:137, eip155:130, eip155:146, eip155:480, eip155:1329, eip155:999, eip155:5042) with amount and payTo address. Circle Gateway offers cover every listed network; a Coinbase-facilitated offer covers Base. The same response carries an MPP challenge (WWW-Authenticate: Payment, USDC on Tempo). Retry with a PAYMENT-SIGNATURE header or an MPP credential, or let an x402 or MPP client (for example `circle services pay` or `mppx`) handle it; a prepaid key in X-Api-Key is charged instead of a 402.
- `404`: Unknown provider, region or instance type.
- `503`: The store is still warming up after a restart; retry in a minute. No payment is taken.

---

[API](https://skmtc.dev/trycorpus/apis/corpusai-cloud-pricing-api.md) · [All operations](https://skmtc.dev/trycorpus/apis/corpusai-cloud-pricing-api/llms.txt) · [OpenAPI document](https://skmtc.dev/trycorpus/apis/corpusai-cloud-pricing-api/revisions/cb0754f4d151?raw)