Create a webhook endpoint
const url = 'https://example.com/v2/webhooks';const options = { method: 'POST', headers: {'X-CowriePay-Key': '<X-CowriePay-Key>', 'Content-Type': 'application/json'}, body: '{"url":"https://example.com","events":["DEPOSIT_DETECTED"]}'};
try { const response = await fetch(url, options); const data = await response.json(); console.log(data);} catch (error) { console.error(error);}curl --request POST \ --url https://example.com/v2/webhooks \ --header 'Content-Type: application/json' \ --header 'X-CowriePay-Key: <X-CowriePay-Key>' \ --data '{ "url": "https://example.com", "events": [ "DEPOSIT_DETECTED" ] }'The secret field is returned only at creation time and cannot be retrieved again. Store it securely, it is used to verify the HMAC signature on incoming webhook payloads. Only HTTPS URLs pointing to publicly reachable addresses are accepted: a private or reserved IP address, a single-label host name, and the .internal, .local, .localhost and .home.arpa suffixes are refused. Deliveries never follow a redirect, so register the final URL of your receiver. Maximum 10 webhook endpoints per workspace. Requires a key with the matching :write scope.
Authorizations
Section titled “Authorizations”Request Bodyrequired
Section titled “Request Bodyrequired”object
Publicly reachable HTTPS URL only. Private/local addresses are rejected.
Responses
Section titled “Responses”Endpoint created. secret shown only at creation, store it securely.
object
HMAC signing secret, shown once only.
Example
{ "events": [ "DEPOSIT_DETECTED" ]}Validation error or private/local URL rejected
object
Human-readable message, for display/logging. Do NOT branch on this text.
Stable, machine-readable error code, branch on this, not the message. Common values: VALIDATION_ERROR, INVALID_JSON, PAYLOAD_TOO_LARGE, MISSING_AUTH_HEADERS, INVALID_SIGNATURE, TIMESTAMP_EXPIRED, REPLAY_DETECTED, INVALID_API_KEY, IP_NOT_ALLOWED, API_KEY_EXPIRED, WORKSPACE_INACTIVE, INSUFFICIENT_SCOPE, NOT_FOUND, CONFLICT, UNPROCESSABLE, INSUFFICIENT_BALANCE, INVALID_DESTINATION_ADDRESS, DESTINATION_IS_INTERNAL, CHAIN_NOT_ENABLED, NATIVE_WITHDRAWAL_NOT_AVAILABLE, WITHDRAWAL_RATE_LIMITED, FAUCET_ONLY_SANDBOX, FAUCET_ADDRESS_NOT_FOUND, FAUCET_INVALID_ASSET, FAUCET_AMOUNT_OVER_CAP, FAUCET_RATE_LIMITED, FAUCET_TOO_MANY_ITEMS, FAUCET_DUPLICATE_ASSET, FAUCET_NATIVE_REQUIRES_DEPOSIT, FAUCET_NATIVE_BUDGET_EXCEEDED, FAUCET_DISPENSER_EXHAUSTED, WITHDRAWAL_NOT_CANCELLABLE, IDEMPOTENCY_CONFLICT, IDEMPOTENCY_MISMATCH, IDEMPOTENCY_KEY_INVALID, FEATURE_NOT_AVAILABLE, RATE_LIMITED, DATABASE_ERROR, INTERNAL_ERROR, UNAUTHORIZED, FORBIDDEN, UNSUPPORTED_MEDIA_TYPE, WITHDRAWALS_FROZEN, WORKSPACE_NOT_FOUND, SYSTEM_WORKSPACE_PROTECTED, FAUCET_INVALID_AMOUNT, FAUCET_NO_ASSETS, FAUCET_NOT_SANDBOX.
Most failures do NOT carry a business code. 373 throw sites raise a generic one (VALIDATION_ERROR, NOT_FOUND, UNPROCESSABLE, UNAUTHORIZED, CONFLICT, FORBIDDEN) against 48 named public codes, so a generic code is the common case and a named one is the exception. Branch on code; treat error as human text that may be reworded. The full catalogue, with causes and next steps, is the Error codes guide.
Example
{ "error": "Insufficient balance. Available: 10.000000, Requested: 50.000000", "code": "INSUFFICIENT_BALANCE"}Invalid or revoked API key / HMAC signature mismatch
object
Human-readable message, for display/logging. Do NOT branch on this text.
Stable, machine-readable error code, branch on this, not the message. Common values: VALIDATION_ERROR, INVALID_JSON, PAYLOAD_TOO_LARGE, MISSING_AUTH_HEADERS, INVALID_SIGNATURE, TIMESTAMP_EXPIRED, REPLAY_DETECTED, INVALID_API_KEY, IP_NOT_ALLOWED, API_KEY_EXPIRED, WORKSPACE_INACTIVE, INSUFFICIENT_SCOPE, NOT_FOUND, CONFLICT, UNPROCESSABLE, INSUFFICIENT_BALANCE, INVALID_DESTINATION_ADDRESS, DESTINATION_IS_INTERNAL, CHAIN_NOT_ENABLED, NATIVE_WITHDRAWAL_NOT_AVAILABLE, WITHDRAWAL_RATE_LIMITED, FAUCET_ONLY_SANDBOX, FAUCET_ADDRESS_NOT_FOUND, FAUCET_INVALID_ASSET, FAUCET_AMOUNT_OVER_CAP, FAUCET_RATE_LIMITED, FAUCET_TOO_MANY_ITEMS, FAUCET_DUPLICATE_ASSET, FAUCET_NATIVE_REQUIRES_DEPOSIT, FAUCET_NATIVE_BUDGET_EXCEEDED, FAUCET_DISPENSER_EXHAUSTED, WITHDRAWAL_NOT_CANCELLABLE, IDEMPOTENCY_CONFLICT, IDEMPOTENCY_MISMATCH, IDEMPOTENCY_KEY_INVALID, FEATURE_NOT_AVAILABLE, RATE_LIMITED, DATABASE_ERROR, INTERNAL_ERROR, UNAUTHORIZED, FORBIDDEN, UNSUPPORTED_MEDIA_TYPE, WITHDRAWALS_FROZEN, WORKSPACE_NOT_FOUND, SYSTEM_WORKSPACE_PROTECTED, FAUCET_INVALID_AMOUNT, FAUCET_NO_ASSETS, FAUCET_NOT_SANDBOX.
Most failures do NOT carry a business code. 373 throw sites raise a generic one (VALIDATION_ERROR, NOT_FOUND, UNPROCESSABLE, UNAUTHORIZED, CONFLICT, FORBIDDEN) against 48 named public codes, so a generic code is the common case and a named one is the exception. Branch on code; treat error as human text that may be reworded. The full catalogue, with causes and next steps, is the Error codes guide.
Example
{ "error": "Insufficient balance. Available: 10.000000, Requested: 50.000000", "code": "INSUFFICIENT_BALANCE"}The API key lacks the required write scope (code: INSUFFICIENT_SCOPE).
object
Human-readable message, for display/logging. Do NOT branch on this text.
Stable, machine-readable error code, branch on this, not the message. Common values: VALIDATION_ERROR, INVALID_JSON, PAYLOAD_TOO_LARGE, MISSING_AUTH_HEADERS, INVALID_SIGNATURE, TIMESTAMP_EXPIRED, REPLAY_DETECTED, INVALID_API_KEY, IP_NOT_ALLOWED, API_KEY_EXPIRED, WORKSPACE_INACTIVE, INSUFFICIENT_SCOPE, NOT_FOUND, CONFLICT, UNPROCESSABLE, INSUFFICIENT_BALANCE, INVALID_DESTINATION_ADDRESS, DESTINATION_IS_INTERNAL, CHAIN_NOT_ENABLED, NATIVE_WITHDRAWAL_NOT_AVAILABLE, WITHDRAWAL_RATE_LIMITED, FAUCET_ONLY_SANDBOX, FAUCET_ADDRESS_NOT_FOUND, FAUCET_INVALID_ASSET, FAUCET_AMOUNT_OVER_CAP, FAUCET_RATE_LIMITED, FAUCET_TOO_MANY_ITEMS, FAUCET_DUPLICATE_ASSET, FAUCET_NATIVE_REQUIRES_DEPOSIT, FAUCET_NATIVE_BUDGET_EXCEEDED, FAUCET_DISPENSER_EXHAUSTED, WITHDRAWAL_NOT_CANCELLABLE, IDEMPOTENCY_CONFLICT, IDEMPOTENCY_MISMATCH, IDEMPOTENCY_KEY_INVALID, FEATURE_NOT_AVAILABLE, RATE_LIMITED, DATABASE_ERROR, INTERNAL_ERROR, UNAUTHORIZED, FORBIDDEN, UNSUPPORTED_MEDIA_TYPE, WITHDRAWALS_FROZEN, WORKSPACE_NOT_FOUND, SYSTEM_WORKSPACE_PROTECTED, FAUCET_INVALID_AMOUNT, FAUCET_NO_ASSETS, FAUCET_NOT_SANDBOX.
Most failures do NOT carry a business code. 373 throw sites raise a generic one (VALIDATION_ERROR, NOT_FOUND, UNPROCESSABLE, UNAUTHORIZED, CONFLICT, FORBIDDEN) against 48 named public codes, so a generic code is the common case and a named one is the exception. Branch on code; treat error as human text that may be reworded. The full catalogue, with causes and next steps, is the Error codes guide.
Example
{ "error": "Insufficient balance. Available: 10.000000, Requested: 50.000000", "code": "INSUFFICIENT_BALANCE"}Maximum webhook endpoints per workspace (10) reached
object
Human-readable message, for display/logging. Do NOT branch on this text.
Stable, machine-readable error code, branch on this, not the message. Common values: VALIDATION_ERROR, INVALID_JSON, PAYLOAD_TOO_LARGE, MISSING_AUTH_HEADERS, INVALID_SIGNATURE, TIMESTAMP_EXPIRED, REPLAY_DETECTED, INVALID_API_KEY, IP_NOT_ALLOWED, API_KEY_EXPIRED, WORKSPACE_INACTIVE, INSUFFICIENT_SCOPE, NOT_FOUND, CONFLICT, UNPROCESSABLE, INSUFFICIENT_BALANCE, INVALID_DESTINATION_ADDRESS, DESTINATION_IS_INTERNAL, CHAIN_NOT_ENABLED, NATIVE_WITHDRAWAL_NOT_AVAILABLE, WITHDRAWAL_RATE_LIMITED, FAUCET_ONLY_SANDBOX, FAUCET_ADDRESS_NOT_FOUND, FAUCET_INVALID_ASSET, FAUCET_AMOUNT_OVER_CAP, FAUCET_RATE_LIMITED, FAUCET_TOO_MANY_ITEMS, FAUCET_DUPLICATE_ASSET, FAUCET_NATIVE_REQUIRES_DEPOSIT, FAUCET_NATIVE_BUDGET_EXCEEDED, FAUCET_DISPENSER_EXHAUSTED, WITHDRAWAL_NOT_CANCELLABLE, IDEMPOTENCY_CONFLICT, IDEMPOTENCY_MISMATCH, IDEMPOTENCY_KEY_INVALID, FEATURE_NOT_AVAILABLE, RATE_LIMITED, DATABASE_ERROR, INTERNAL_ERROR, UNAUTHORIZED, FORBIDDEN, UNSUPPORTED_MEDIA_TYPE, WITHDRAWALS_FROZEN, WORKSPACE_NOT_FOUND, SYSTEM_WORKSPACE_PROTECTED, FAUCET_INVALID_AMOUNT, FAUCET_NO_ASSETS, FAUCET_NOT_SANDBOX.
Most failures do NOT carry a business code. 373 throw sites raise a generic one (VALIDATION_ERROR, NOT_FOUND, UNPROCESSABLE, UNAUTHORIZED, CONFLICT, FORBIDDEN) against 48 named public codes, so a generic code is the common case and a named one is the exception. Branch on code; treat error as human text that may be reworded. The full catalogue, with causes and next steps, is the Error codes guide.
Example
{ "error": "Insufficient balance. Available: 10.000000, Requested: 50.000000", "code": "INSUFFICIENT_BALANCE"}Rate limit exceeded
object
Human-readable message, for display/logging. Do NOT branch on this text.
Stable, machine-readable error code, branch on this, not the message. Common values: VALIDATION_ERROR, INVALID_JSON, PAYLOAD_TOO_LARGE, MISSING_AUTH_HEADERS, INVALID_SIGNATURE, TIMESTAMP_EXPIRED, REPLAY_DETECTED, INVALID_API_KEY, IP_NOT_ALLOWED, API_KEY_EXPIRED, WORKSPACE_INACTIVE, INSUFFICIENT_SCOPE, NOT_FOUND, CONFLICT, UNPROCESSABLE, INSUFFICIENT_BALANCE, INVALID_DESTINATION_ADDRESS, DESTINATION_IS_INTERNAL, CHAIN_NOT_ENABLED, NATIVE_WITHDRAWAL_NOT_AVAILABLE, WITHDRAWAL_RATE_LIMITED, FAUCET_ONLY_SANDBOX, FAUCET_ADDRESS_NOT_FOUND, FAUCET_INVALID_ASSET, FAUCET_AMOUNT_OVER_CAP, FAUCET_RATE_LIMITED, FAUCET_TOO_MANY_ITEMS, FAUCET_DUPLICATE_ASSET, FAUCET_NATIVE_REQUIRES_DEPOSIT, FAUCET_NATIVE_BUDGET_EXCEEDED, FAUCET_DISPENSER_EXHAUSTED, WITHDRAWAL_NOT_CANCELLABLE, IDEMPOTENCY_CONFLICT, IDEMPOTENCY_MISMATCH, IDEMPOTENCY_KEY_INVALID, FEATURE_NOT_AVAILABLE, RATE_LIMITED, DATABASE_ERROR, INTERNAL_ERROR, UNAUTHORIZED, FORBIDDEN, UNSUPPORTED_MEDIA_TYPE, WITHDRAWALS_FROZEN, WORKSPACE_NOT_FOUND, SYSTEM_WORKSPACE_PROTECTED, FAUCET_INVALID_AMOUNT, FAUCET_NO_ASSETS, FAUCET_NOT_SANDBOX.
Most failures do NOT carry a business code. 373 throw sites raise a generic one (VALIDATION_ERROR, NOT_FOUND, UNPROCESSABLE, UNAUTHORIZED, CONFLICT, FORBIDDEN) against 48 named public codes, so a generic code is the common case and a named one is the exception. Branch on code; treat error as human text that may be reworded. The full catalogue, with causes and next steps, is the Error codes guide.
Example
{ "error": "Insufficient balance. Available: 10.000000, Requested: 50.000000", "code": "INSUFFICIENT_BALANCE"}