> For the complete documentation index, see [llms.txt](https://docs.iyzico.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.iyzico.com/en/products/paypos-app2app/paypos-app2app-integration/create-session.md).

# Create Session

This service generates the session key required for services that use a mobile session token. Requests to this service can only be sent from the merchant server with a static IP address registered on the Paynet side and must include the dealer-specific secret key in the request header.

## Authorize – get\_auth\_key

> Generates a mobile session key (session\_key).\
> Only servers whose IP addresses are defined by Paynet can call this service.<br>

```json
{"openapi":"3.0.3","info":{"title":"PayPOS (Paynet) API","version":"1.0.0"},"tags":[{"name":"Authorize"}],"servers":[{"url":"https://api.paynet.com.tr","description":"Production"},{"url":"https://pts-api.paynet.com.tr","description":"Sandbox"}],"paths":{"/v1/agent/get_auth_key":{"post":{"summary":"Authorize – get_auth_key","description":"Generates a mobile session key (session_key).\nOnly servers whose IP addresses are defined by Paynet can call this service.\n","tags":["Authorize"],"parameters":[{"$ref":"#/components/parameters/AuthorizationHeader"},{"$ref":"#/components/parameters/PaynetMobileHeader"},{"$ref":"#/components/parameters/ContentTypeHeader"}],"requestBody":{"required":true,"content":{"application/json":{"schema":{"$ref":"#/components/schemas/AuthRequest"}}}},"responses":{"200":{"description":"Successful","content":{"application/json":{"schema":{"$ref":"#/components/schemas/AuthResponse"}}}},"400":{"description":"Invalid request","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}}}}}},"components":{"parameters":{"AuthorizationHeader":{"name":"Authorization","in":"header","required":true,"description":"Dealer-specific generated secret_key. Example: \"Basic sck_xxx\".","schema":{"type":"string"}},"PaynetMobileHeader":{"name":"PaynetMobile","in":"header","required":true,"description":"Indicates a mobile request. Example in the document; 2.","schema":{"type":"string"}},"ContentTypeHeader":{"name":"Content-Type","in":"header","required":true,"description":"Content type.","schema":{"type":"string"}}},"schemas":{"AuthRequest":{"type":"object","required":["agent_id","user_id"],"properties":{"agent_id":{"type":"string","description":"Agent Id."},"user_id":{"type":"string","description":"User Id."}}},"AuthResponse":{"type":"object","properties":{"session_key":{"type":"string","description":"Session key."},"expired_date":{"type":"string","description":"Expired date."},"agent_id":{"type":"string","description":"Agent Id."},"company_code":{"type":"string","description":"Company code."},"user_id":{"type":"string","description":"User Id."},"user_unique_id":{"type":"string","description":"User unique Id."},"is_okc_inquiry":{"type":"boolean","description":"ÖKC exemption result."},"object_name":{"type":"string","description":"Object name."},"code":{"type":"integer","description":"Code."},"message":{"type":"string","description":"Message."}}},"ErrorResponse":{"type":"object","properties":{"object_name":{"type":"string","description":"Object name."},"code":{"type":"integer","description":"Code."},"message":{"type":"string","description":"Message."}}}}}}
```