---
title: "Published calibration evidence and its limitations"
method: GET
path: "/api/v1/calibration"
tags: ["Research"]
---

# Published calibration evidence and its limitations

`GET /api/v1/calibration`

## Request

- Base URL: `https://chartlibrary.io` (the document declares no server; this is the origin it was published from)
- URL: `https://chartlibrary.io/api/v1/calibration`
- Auth: none required

No arguments needed. Returns the default five-session calibration receipt and its dated sample and qualifications. The receipt audits the calibrated cohort-band method and population named in the response. Do not apply its coverage percentage to raw market-state excess ranges, all research, or future returns. Daily-note results have their own tally in /api/v1/daily.

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/chartlibrary/apis/chart-library-api.md) · [All operations](https://skmtc.dev/chartlibrary/apis/chart-library-api/llms.txt) · [OpenAPI document](https://skmtc.dev/chartlibrary/apis/chart-library-api/revisions/d1b5913fb60c?raw)