---
title: "One day's token price fixing for a ticker such as CX.TOK.CLAUDESONNET5.IN."
method: GET
path: "/v1/tokens/fixing"
tags: ["tokens"]
---

# One day's token price fixing for a ticker such as CX.TOK.CLAUDESONNET5.IN.

`GET /v1/tokens/fixing`

## Request

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

Median across every source and host at the standard tier (batch and free variants excluded). `.IN` and `.OUT` are input and output USD per million tokens; `.BLEND` is (3·input + output) / 4. `CX.TOK.FRONTIER.<side>` is the median across the frontier basket listed by /tokens/models.

## Query parameters

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

## Response `200`

Fixing.

- TokenFixing
  - `ticker` string, required
  - `model` string
  - `basket` string[]
  - `side` 'IN' | 'OUT' | 'BLEND'
  - `day` string, date, required
  - `methodology` string, required
  - `unit` string
  - `value` number, required
  - `input` number, nullable
  - `output` number, nullable
  - `lo` number
  - `hi` number
  - `n` integer, required
  - `members` object

## 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)