# GSMA notification listener API

**Canonical:** https://apis.io/apis/gsma/open-gateway-notification-listener-api/  
**Provider:** GSMA — https://apis.io/providers/gsma/  
**Documentation:** https://github.com/camaraproject/NumberVerification

GSMA notification listener API is one of 44 APIs that [GSMA](https://apis.io/providers/gsma/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include notification listener. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

Notifications for Resource Lifecycle and event notifications

## Operations (10)

| Method | Path | Summary |
|---|---|---|
| POST | `/listener/apiProductOrderAttributeValueChangeEvent` | Client listener for entity ApiProductOrderAttributeValueChangeEvent |
| POST | `/listener/apiProductOrderCreateEvent` | Client listener for entity ApiProductOrderCreateEvent |
| POST | `/listener/apiProductOrderStateChangeEvent` | Client listener for entity ApiProductOrderStateChangeEvent |
| POST | `/listener/applicationApprovalStatusChangeEvent` | Client listener for entity ApplicationApprovalStatusChangeEvent |
| POST | `/listener/applicationAttributeValueChangeEvent` | Client listener for entity ApplicationAttributeValueChangeEvent |
| POST | `/listener/applicationCreateEvent` | Client listener for entity ApplicationCreateEvent |
| POST | `/listener/applicationOwnerApprovalStatusChangeEvent` | Client listener for entity ApplicationOwnerApprovalStatusChangeEvent |
| POST | `/listener/applicationOwnerAttributeValueChangeEvent` | Client listener for entity ApplicationOwnerAttributeValueChangeEvent |
| POST | `/listener/applicationOwnerCreateEvent` | Client listener for entity ApplicationOwnerCreateEvent |
| POST | `/listener/monitorStateChangeEvent` | Client listener for entity MonitorStateChangeEvent |

## Machine-readable artifacts (22)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/gsma/refs/heads/main/openapi/open-gateway-notification-listener-api-openapi.yml
- **Documentation** — https://github.com/camaraproject/NumberVerification
- **APIReference** — https://camaraproject.github.io/swagger-ui/
- **Documentation** — https://www.gsma.com/solutions-and-impact/gsma-open-gateway/gsma-open-gateway-api-descriptions/
- **Documentation** — https://github.com/camaraproject/SimSwap
- **Documentation** — https://github.com/camaraproject/DeviceSwap
- **Documentation** — https://github.com/camaraproject/CallForwardingSignal
- **Documentation** — https://github.com/camaraproject/KnowYourCustomerMatch
- **Documentation** — https://github.com/camaraproject/KnowYourCustomerAgeVerification
- **Documentation** — https://github.com/camaraproject/Tenure
- **Documentation** — https://github.com/camaraproject/OTPValidation
- **Documentation** — https://github.com/camaraproject/QualityOnDemand
- **Documentation** — https://github.com/camaraproject/DeviceReachabilityStatus
- **Documentation** — https://github.com/camaraproject/DeviceIdentifier
- **Documentation** — https://github.com/camaraproject/DeviceStatus
- **Documentation** — https://github.com/camaraproject/PopulationDensityData
- **Documentation** — https://github.com/camaraproject/DeviceLocation
- **Documentation** — https://github.com/camaraproject/SimpleEdgeDiscovery
- **Documentation** — https://github.com/camaraproject/CarrierBillingCheckOut
- **Documentation** — https://github.com/camaraproject/HomeDevicesQoD
- **Documentation** — https://github.com/tmforum-apis/TMF931_OpenGatewayOnboardingAndOrderingComponentSuite
- **APIReference** — https://github.com/tmforum-apis/TMF931_OpenGatewayOnboardingAndOrderingComponentSuite

## Other GSMA APIs (12)

- [GSMA Accounts API](https://apis.io/apis/gsma/gsma-accounts-api/)
- [GSMA Authorisation Codes API](https://apis.io/apis/gsma/gsma-authorisation-codes-api/)
- [GSMA Bills API](https://apis.io/apis/gsma/gsma-bills-api/)
- [GSMA Call Forwarding information retrieval API](https://apis.io/apis/gsma/gsma-call-forwarding-information-retrieval-api/)
- [GSMA Check Device Swap API](https://apis.io/apis/gsma/gsma-check-device-swap-api/)
- [GSMA Debit Mandates API](https://apis.io/apis/gsma/gsma-debit-mandates-api/)
- [GSMA Discovery API](https://apis.io/apis/gsma/gsma-discovery-api/)
- [GSMA Home Devices QoD API](https://apis.io/apis/gsma/gsma-home-devices-qod-api/)
- [GSMA Links API](https://apis.io/apis/gsma/gsma-links-api/)
- [GSMA Location Retrieval API](https://apis.io/apis/gsma/gsma-location-retrieval-api/)
- [GSMA Match API](https://apis.io/apis/gsma/gsma-match-api/)
- [GSMA One Step Payment API](https://apis.io/apis/gsma/gsma-one-step-payment-api/)

## Tags

notification listener

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/gsma/open-gateway-notification-listener-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/gsma/.