---
title: "Verify federation link"
method: POST
path: "/v1/federation/verify/{challengeToken}"
tags: ["Claims"]
---

# Verify federation link

`POST /v1/federation/verify/{challengeToken}`

Verifies a federation challenge token and finalizes cross-application identity linking.

## Path parameters

- `challengeToken` string, required

## Response `200`

Federation link verified

## Other responses

- `404` — Challenge token not found or expired
- `409` — Challenge token is not in a verifiable state

---

[API](https://skmtc.net/reflexpay/apis/idaas-identity-as-a-service-api.md) · [All operations](https://skmtc.net/reflexpay/apis/idaas-identity-as-a-service-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/reflexpay/idaas-identity-as-a-service-api/revisions/db1f954badfb/schema)