---
title: "One day's fixing for a ticker: median USD per GPU-hour of eligible quotes, with low, high and count."
method: GET
path: "/v1/index/fixing"
tags: ["index"]
---

# One day's fixing for a ticker: median USD per GPU-hour of eligible quotes, with low, high and count.

`GET /v1/index/fixing`

## Request

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

Quote segments (MKT, AGG, NEO, INT, EXE, HYP) fix from that day's snapshots; the default day is the latest snapshot. SPOT fixes from the full UTC day of spot events, so the default is yesterday; SPOT composites carry per-region values and spread_vs_neo. See /methodology for eligibility and aggregation.

## Query parameters

- `ticker` string, required
- `day` string, date

## Response `200`

Fixing.

- Fixing
  - `ticker` string, required
  - `gpu` string
  - `segment` string
  - `day` string, date, required
  - `methodology` string, required
  - `unit` string
  - `value` number, required: Median USD per GPU-hour of eligible quotes (or median across regions for SPOT composites).
  - `lo` number
  - `hi` number
  - `n` integer, required: Quotes (or regions) behind the fixing.
  - `members` object: Quote counts per provider/market.
  - `regions` object[]: SPOT composites: per-region values.
    - `region` string
    - `value` number
  - `spread_vs_neo` number, nullable: SPOT composite minus the latest NEO fixing.
  - `instance` string
  - `source` string

## 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)