# Echo

## POST /v1/util/echo

> Test endpoint, returns input.

```json
{"openapi":"3.0.1","info":{"title":"Agent API","version":"25.8.1"},"servers":[{"url":"youragentURL.symphony.com/agent"}],"paths":{"/v1/util/echo":{"post":{"tags":["Util"],"summary":"Test endpoint, returns input.","parameters":[{"name":"sessionToken","in":"header","description":"Session authentication token.","required":true,"schema":{"type":"string"}},{"name":"keyManagerToken","in":"header","description":"Key Manager authentication token.","schema":{"type":"string"}}],"requestBody":{"description":"Message in plain text","content":{"application/json":{"schema":{"$ref":"#/components/schemas/SimpleMessage"}}},"required":true},"responses":{"200":{"description":"Message sent.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/SimpleMessage"}}}},"400":{"description":"Client error, see response body for further details.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"401":{"description":"Unauthorized: Session tokens invalid.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"403":{"description":"Forbidden: Caller lacks necessary entitlement.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}},"500":{"description":"Server error, see response body for further details.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/Error"}}}}}}}},"components":{"schemas":{"SimpleMessage":{"type":"object","properties":{"message":{"type":"string"}},"description":"A string wrapped in a JSON object."},"Error":{"type":"object","properties":{"code":{"type":"integer","format":"int32"},"message":{"type":"string"}}}}}}
```