Currently Crypto APIs 2.0 offers certain Blockchain event endpoints which allow the user to subscribe for one/a few/all and receive callback notifications when the specific event occurs.

To have an operational callback subscription, you need to first verify a domain for the Callback URL. Please see more information on Callbacks here.

Crypto APIs will notify the user only when the event occurs. There are cases when the specific event doesn't happen at all, or takes a long time to do so. A callback notification will not be sent if the event does not or cannot occur, or will take long time to occur.

Path Parameters

blockchain string Required

Represents the specific blockchain protocol name, e.g. Ethereum, Bitcoin, etc.

network string Required

Represents the name of the blockchain network used; blockchain networks are usually identical as technology and software, but they differ in data, e.g. - "mainnet" is the live network with actual data while network like "testnet" is a test network.

referenceId string Required

Represents a unique ID used to reference the specific callback subscription.

Query Parameters

context string Optional

In batch situations the user can use the context to correlate responses with requests. This property is present regardless of whether the response was successful or returned as an error. context is specified by the user.

Response Schema

apiVersion string Required

Specifies the version of the API that incorporates this endpoint.

2023-04-25

requestId string Required

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

601c1710034ed6d407996b30

context string Optional

yourExampleString

data object Required

item object Required

callbackSecretKey string Required

Represents the Secret Key value provided by the customer. This field is used for security purposes during the callback notification, in order to prove the sender of the callback as Crypto APIs. For more information please see our Documentation.

yourSecretKey

callbackUrl string Required

Represents the URL that is set by the customer where the callback will be received at. The callback notification will be received only if and when the event occurs. We support ONLY httpS type of protocol.

https://example.com

createdTimestamp integer Required

Defines the specific time/date when the subscription was created in Unix Timestamp.

1611238648

eventType string Required

Defines the type of the specific event available for the customer to subscribe to for callback notification.

ADDRESS_COINS_TRANSACTION_UNCONFIRMED

referenceId string Required

Represents a unique ID used to reference the specific callback subscription.

6de9a6ae-1463-458c-81a5-16d68d108012

apiVersion string Required

Specifies the version of the API that incorporates this endpoint.

2023-04-25

requestId string Required

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

601c1710034ed6d407996b30

context string Optional

yourExampleString

error object Required

code string Required

Specifies an error code, e.g. error 404.

uri_not_found

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

The specified URI has not been found. Check the URI and try again.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

code string Required

Specifies an error code, e.g. error 404.

limit_greater_than_allowed

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

You have reached the allowed limit. The maximum number of items for this endpoint is {limit}, please use the specific pagination attributes to get the items in portions.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

code string Required

Specifies an error code, e.g. error 404.

invalid_pagination

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

The pagination attributes that have been used are invalid. Please check the Documentation to see details on pagination.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

apiVersion string Required

Specifies the version of the API that incorporates this endpoint.

2023-04-25

requestId string Required

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

601c1710034ed6d407996b30

context string Optional

yourExampleString

error object Required

code string Required

Specifies an error code, e.g. error 404.

missing_api_key

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

The specific authorization header (API Key) is missing, please check our Authorization section in our Documentation.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

code string Required

Specifies an error code, e.g. error 404.

invalid_api_key

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

The provided API key is invalid. Please, generate a new one from your Dashboard.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

apiVersion string Required

Specifies the version of the API that incorporates this endpoint.

2023-04-25

requestId string Required

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

601c1710034ed6d407996b30

context string Optional

yourExampleString

error object Required

insufficient_credits

code string Required

Specifies an error code, e.g. error 404.

insufficient_credits

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

You have insufficient credits. Please upgrade your plan from your Dashboard or contact our team via email.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

apiVersion string Required

Specifies the version of the API that incorporates this endpoint.

2023-04-25

requestId string Required

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

601c1710034ed6d407996b30

context string Optional

yourExampleString

error object Required

code string Required

Specifies an error code, e.g. error 404.

banned_ip_address

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

This IP address has been banned. To check the reason for that, please contact our team via email.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

code string Required

Specifies an error code, e.g. error 404.

endpoint_not_allowed_for_plan

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

This endpoint is not available for your current subscription plan, please upgrade your plan to be able to use it.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

code string Required

Specifies an error code, e.g. error 404.

endpoint_not_allowed_for_api_key

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

This endpoint is not available for your API key.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

code string Required

Specifies an error code, e.g. error 404.

feature_mainnets_not_allowed_for_plan

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

Mainnets access is not available for your current subscription plan, please upgrade your plan to be able to use it.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

apiVersion string Required

Specifies the version of the API that incorporates this endpoint.

2023-04-25

requestId string Required

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

601c1710034ed6d407996b30

context string Optional

yourExampleString

error object Required

resource_not_found

code string Required

Specifies an error code, e.g. error 404.

resource_not_found

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

Resource not found

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

apiVersion string Required

Specifies the version of the API that incorporates this endpoint.

2023-04-25

requestId string Required

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

601c1710034ed6d407996b30

context string Optional

yourExampleString

error object Required

invalid_data

code string Required

Specifies an error code, e.g. error 404.

invalid_data

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

The data provided seems to be invalid.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

apiVersion string Required

Specifies the version of the API that incorporates this endpoint.

2023-04-25

requestId string Required

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

601c1710034ed6d407996b30

context string Optional

yourExampleString

error object Required

unsupported_media_type

code string Required

Specifies an error code, e.g. error 404.

unsupported_media_type

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

The selected Media Type is unavailable. The Content-Type header should be 'application/json'.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

apiVersion string Required

Specifies the version of the API that incorporates this endpoint.

2023-04-25

requestId string Required

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

601c1710034ed6d407996b30

context string Optional

yourExampleString

error object Required

invalid_request_body_structure

code string Required

Specifies an error code, e.g. error 404.

invalid_request_body_structure

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

Your request body for POST requests must have a structure of { data: { item: [...properties] } }

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

apiVersion string Required

Specifies the version of the API that incorporates this endpoint.

2023-04-25

requestId string Required

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

601c1710034ed6d407996b30

context string Optional

yourExampleString

error object Required

request_limit_reached

code string Required

Specifies an error code, e.g. error 404.

request_limit_reached

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

The request limit has been reached. There can be maximum {requests} requests per {seconds} second(s) made. Please contact our team via email if you need more or upgrade your plan.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

apiVersion string Required

Specifies the version of the API that incorporates this endpoint.

2023-04-25

requestId string Required

Defines the ID of the request. The requestId is generated by Crypto APIs and it's unique for every request.

601c1710034ed6d407996b30

context string Optional

yourExampleString

error object Required

unexpected_server_error

code string Required

Specifies an error code, e.g. error 404.

unexpected_server_error

message string Required

Specifies the message of the error, i.e. why the error was returned, e.g. error 404 stands for “not found”.

An unexpected server error has occurred, we are working to fix this. Please try again later and in case it occurs again please report it to our team via email.

details array Items (object) Optional

attribute string Required

Specifies an attribute of the error by name.

attribute which content caused the error

message string Required

Specifies the details of an attribute as part from the error.

message describing the error

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{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "data": {
        "item": {
            "callbackSecretKey": "yourSecretKey",
            "callbackUrl": "https://example.com",
            "createdTimestamp": 1611238648,
            "eventType": "ADDRESS_COINS_TRANSACTION_UNCONFIRMED",
            "referenceId": "6de9a6ae-1463-458c-81a5-16d68d108012"
        }
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "uri_not_found",
        "message": "The specified URI has not been found. Check the URI and try again.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "limit_greater_than_allowed",
        "message": "You have reached the allowed limit. The maximum number of items for this endpoint is {limit}, please use the specific pagination attributes to get the items in portions.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "invalid_pagination",
        "message": "The pagination attributes that have been used are invalid. Please check the Documentation to see details on pagination.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "missing_api_key",
        "message": "The specific authorization header (API Key) is missing, please check our Authorization section in our Documentation.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "invalid_api_key",
        "message": "The provided API key is invalid. Please, generate a new one from your Dashboard.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "insufficient_credits",
        "message": "You have insufficient credits. Please upgrade your plan from your Dashboard or contact our team via email.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "banned_ip_address",
        "message": "This IP address has been banned. To check the reason for that, please contact our team via email.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "endpoint_not_allowed_for_plan",
        "message": "This endpoint is not available for your current subscription plan, please upgrade your plan to be able to use it.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "endpoint_not_allowed_for_api_key",
        "message": "This endpoint is not available for your API key.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "feature_mainnets_not_allowed_for_plan",
        "message": "Mainnets access is not available for your current subscription plan, please upgrade your plan to be able to use it.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "resource_not_found",
        "message": "Resource not found",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "invalid_data",
        "message": "The data provided seems to be invalid.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "unsupported_media_type",
        "message": "The selected Media Type is unavailable. The Content-Type header should be 'application/json'.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "invalid_request_body_structure",
        "message": "Your request body for POST requests must have a structure of { data: { item: [...properties] } }",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "request_limit_reached",
        "message": "The request limit has been reached. There can be maximum {requests} requests per {seconds} second(s) made. Please contact our team via email if you need more or upgrade your plan.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

{
    "apiVersion": "2023-04-25",
    "requestId": "601c1710034ed6d407996b30",
    "context": "yourExampleString",
    "error": {
        "code": "unexpected_server_error",
        "message": "An unexpected server error has occurred, we are working to fix this. Please try again later and in case it occurs again please report it to our team via email.",
        "details": [
            {
                "attribute": "attribute which content caused the error",
                "message": "message describing the error"
            }
        ]
    }
}

Delete Blockchain Event Subscription

Path Parameters

Query Parameters

Response Schema

Credits Cost : 400 Credits for 1 Results

Security schema

URL Schema