---
title: "Authentication Services"
account: citi
slug: authentication-services
---

# Authentication Services

Authentication: issue OAuth access tokens for Citi API requests using client credentials over mTLS

- Operations: 1
- Versions: 2 (latest `32b7b9eec629`)
- Homepage: https://tts.sandbox.developer.citi.com/citiconnect/
- Contact: developer-support@citi.com
- Source: https://developer.citi.com/apidocs/redocusaurus/authentication_api_3.yaml
- OpenAPI document: https://skmtc.dev/citi/apis/authentication-services/revisions/32b7b9eec629?raw

## Operations

1 in total, by tag:

- Authentication v3 (1)

Every operation, with a link to its markdown: https://skmtc.dev/citi/apis/authentication-services/llms.txt