--- title: counts-custom-events product: vercel url: /docs/rest-api/web-analytics/counts-custom-events canonical_url: "https://vercel.com/docs/rest-api/web-analytics/counts-custom-events" last_updated: 2026-06-26 type: reference prerequisites: [] related: - /docs/rest-api summary: Learn about counts-custom-events on Vercel. install_vercel_plugin: npx plugins add vercel/vercel-plugin --- # Counts custom events ```http GET /v1/query/web-analytics/events/count ``` Counts the number of custom events on a project (production only), since Web Analytics was enabled. Results can be filtered on supported dimensions. ## Authentication **bearerToken**: HTTP bearer ## Query parameters | Name | Type | Required | Description | |---|---|---|---| | `projectId` | string | Yes | The project identifier or the project name | | `since` | object | No | Timestamp in milliseconds, or a valid Date string. Selects data from (including) this date and time. Will be adjusted according to the desired time granularity. | | `until` | object | No | Timestamp in milliseconds, or a valid Date string. Selects data until (including) this date. Will be adjusted according to the desired time granularity. | | `filter` | string | No | OData-compliant filter. Encode the value when sending it in a URL. Allows filtering on one or multiple dimensions. Supported dimensions: country, deviceType, environment, requestPath, referrerHostname, osName, browserName, route, utmSource, utmMedium, utmCampaign, utmContent, utmTerm, eventName. JSON dimensions filtered by key: flags/, eventData/, for example eventData/plan eq 'pro'. Wrap keys containing characters other than letters, digits, and underscores in single quotes, for example flags/'my-flag' eq 'true'. Supported operations include eq, ne, in, and logical operators and, or, not with parentheses. Functions such as startswith are supported by the OData parser. | | `teamId` | string | No | The Team identifier to perform the request on behalf of. | | `slug` | string | No | The Team slug to perform the request on behalf of. | ## Responses ### 200: No description Content-Type: `application/json` ```json { "type": "object", "required": [ "data", "query", "version" ], "properties": { "version": { "type": "number" }, "query": { "type": "object", "required": [ "since", "until" ], "properties": { "since": { "type": "string" }, "until": { "type": "string" }, "filter": { "type": "string" } } }, "data": { "type": "object", "required": [ "aiGatewayModelId", "aiModel", "aiModelType", "aiProvider", "asnId", "asnName", "attributes", "blobOperationLevel", "blobOperationType", "botCategory", "botCategoryLegacy", "botCheckResult", "botName", "botVerified", "browserName", "cacheApi", "cacheCreation1hInputTokensCurrency", "cacheCreationInputTokensCurrency", "cacheHitLevel", "cacheHitState", "cacheHostname", "cacheOperation", "cachePath", "cacheResult", "cacheTags", "cachedInputTokensCurrency", "cause", "clientIp", "clientIpCountry", "clientJa4Digest", "clientUserAgent", "commitSha", "consumerGroup", "contentType", "costCurrency", "country", "dataCacheRegion", "deepAnalysisCheck", "deploymentId", "deviceType", "dheCipherSuite", "edgeNetworkRegion", "edgeType", "entryId", "entryItemId", "entryName", "entryRevalidateSeconds", "environment", "errorCode", "errorMessage", "eventData", "eventName", "eventType", "externalRewriteTargetHost", "externalRewriteTargetPath", "fetchIndex", "fetchType", "flagClientName", "flagEvaluationReason", "flagKey", "flagVariant", "flags", "functionDispatcher", "functionRegion", "functionStartType", "generationId", "hipaaRequested", "httpAccept", "httpStatus", "imageSource", "imageTransformationRegion", "isAdditionalRequest", "isByok", "isPrefetchRequest", "isPrivateModel", "isRequestZdr", "isrAction", "isrCacheRegion", "keyId", "keyName", "marketCostCurrency", "messageId", "metricName", "microfrontendsDefaultAppDeploymentId", "microfrontendsDefaultAppProjectId", "microfrontendsMatchedPath", "microfrontendsResponseReason", "middlewareAction", "middlewareActionTarget", "notificationUrl", "optimizedFormatMimeType", "optimizedQuality", "optimizedWidthPixels", "originHostname", "originPath", "originRoute", "osName", "pathType", "pathTypeVariant", "projectId", "projectName", "provider", "providerAttemptCanonicalSlug", "providerAttemptCredentialType", "providerAttemptError", "providerAttemptIsFinal", "providerAttemptModelIndex", "providerAttemptNumber", "providerAttemptRegion", "providerAttemptStatusCode", "providerAttemptSuccess", "providerAttemptTimeout", "providerAttemptTotalInRequest", "pullRequestNumber", "pullRequestState", "queueName", "quotaEntityId", "quotaEntityType", "quotaRequested", "reason", "redirectLocation", "referrerHostname", "referrerUrl", "region", "reportingProjectId", "reportingProjectName", "repositoryName", "repositoryOwner", "requestApi", "requestExtension", "requestHostname", "requestId", "requestMethod", "requestPath", "requestResolvedIp", "reviewConclusion", "reviewStatus", "rewriteDestinationHostname", "route", "runtime", "sandboxName", "sandboxSessionId", "sdkKeyEnvironment", "sdkKeyId", "serverActionName", "service", "sessionId", "skewProtection", "source", "sourceImage", "sourceImageHash", "sourceImageHostname", "sourceImagePathname", "specVersion", "spendReportDatePart", "spendReportGroupBy", "stepRunId", "storeId", "storeName", "tagName", "toolCallErrorType", "toolCallProvider", "toolCallStatusCode", "toolCallSuccess", "toolCallType", "triggeringTag", "utmCampaign", "utmContent", "utmMedium", "utmSource", "utmTerm", "vdcOperationOrigin", "videoAspectRatio", "videoResolution", "virtualModelKind", "virtualModelSlug", "visitorId", "wafAction", "wafRuleId", "workflowEventType", "workflowName", "workflowRunId", "workflowStatus", "workflowStepName" ], "properties": { "projectId": { "type": "string" }, "country": { "type": "string" }, "deviceType": { "type": "string" }, "environment": { "type": "string" }, "requestPath": { "type": "string" }, "referrerHostname": { "type": "string" }, "osName": { "type": "string" }, "browserName": { "type": "string" }, "route": { "type": "string" }, "utmSource": { "type": "string" }, "utmMedium": { "type": "string" }, "utmCampaign": { "type": "string" }, "utmContent": { "type": "string" }, "utmTerm": { "type": "string" }, "flags": { "type": "string" }, "errorMessage": { "type": "string" }, "entryRevalidateSeconds": { "type": "string" }, "projectName": { "type": "string" }, "deploymentId": { "type": "string" }, "pathType": { "type": "string" }, "pathTypeVariant": { "type": "string" }, "requestHostname": { "type": "string" }, "requestResolvedIp": { "type": "string" }, "requestMethod": { "type": "string" }, "requestExtension": { "type": "string" }, "requestId": { "type": "string" }, "requestApi": { "type": "string" }, "referrerUrl": { "type": "string" }, "serverActionName": { "type": "string" }, "httpStatus": { "type": "string" }, "errorCode": { "type": "string" }, "source": { "type": "string" }, "edgeType": { "type": "string" }, "reason": { "type": "string" }, "edgeNetworkRegion": { "type": "string" }, "functionRegion": { "type": "string" }, "imageTransformationRegion": { "type": "string" }, "dataCacheRegion": { "type": "string" }, "cause": { "type": "string" }, "runtime": { "type": "string" }, "provider": { "type": "string" }, "isrCacheRegion": { "type": "string" }, "isrAction": { "type": "string" }, "cacheResult": { "type": "string" }, "cacheOperation": { "type": "string" }, "cacheHostname": { "type": "string" }, "cachePath": { "type": "string" }, "cacheHitState": { "type": "string" }, "cacheHitLevel": { "type": "string" }, "cacheApi": { "type": "string" }, "clientIp": { "type": "string" }, "clientIpCountry": { "type": "string" }, "clientUserAgent": { "type": "string" }, "httpAccept": { "type": "string" }, "clientJa4Digest": { "type": "string" }, "asnId": { "type": "string" }, "asnName": { "type": "string" }, "botName": { "type": "string" }, "botCategory": { "type": "string" }, "botCategoryLegacy": { "type": "string" }, "botVerified": { "type": "string" }, "dheCipherSuite": { "type": "string" }, "botCheckResult": { "type": "string" }, "deepAnalysisCheck": { "type": "string" }, "wafAction": { "type": "string" }, "wafRuleId": { "type": "string" }, "skewProtection": { "type": "string" }, "functionStartType": { "type": "string" }, "functionDispatcher": { "type": "string" }, "isAdditionalRequest": { "type": "string" }, "originHostname": { "type": "string" }, "originPath": { "type": "string" }, "originRoute": { "type": "string" }, "fetchType": { "type": "string" }, "fetchIndex": { "type": "string" }, "imageSource": { "type": "string" }, "sourceImage": { "type": "string" }, "sourceImagePathname": { "type": "string" }, "sourceImageHostname": { "type": "string" }, "sourceImageHash": { "type": "string" }, "optimizedQuality": { "type": "string" }, "optimizedWidthPixels": { "type": "string" }, "optimizedFormatMimeType": { "type": "string" }, "vdcOperationOrigin": { "type": "string" }, "entryName": { "type": "string" }, "entryId": { "type": "string" }, "entryItemId": { "type": "string" }, "tagName": { "type": "string" }, "cacheTags": { "type": "string" }, "storeId": { "type": "string" }, "storeName": { "type": "string" }, "blobOperationType": { "type": "string" }, "blobOperationLevel": { "type": "string" }, "visitorId": { "type": "string" }, "eventName": { "type": "string" }, "metricName": { "type": "string" }, "attributes": { "type": "string" }, "flagKey": { "type": "string" }, "flagVariant": { "type": "string" }, "flagEvaluationReason": { "type": "string" }, "flagClientName": { "type": "string" }, "sdkKeyId": { "type": "string" }, "sdkKeyEnvironment": { "type": "string" }, "reportingProjectId": { "type": "string" }, "reportingProjectName": { "type": "string" }, "eventData": { "type": "string" }, "middlewareAction": { "type": "string" }, "middlewareActionTarget": { "type": "string" }, "aiModel": { "type": "string" }, "aiGatewayModelId": { "type": "string" }, "aiProvider": { "type": "string" }, "aiModelType": { "type": "string" }, "virtualModelSlug": { "type": "string" }, "virtualModelKind": { "type": "string" }, "costCurrency": { "type": "string" }, "marketCostCurrency": { "type": "string" }, "cachedInputTokensCurrency": { "type": "string" }, "cacheCreationInputTokensCurrency": { "type": "string" }, "cacheCreation1hInputTokensCurrency": { "type": "string" }, "keyId": { "type": "string" }, "keyName": { "type": "string" }, "isByok": { "type": "string" }, "isPrivateModel": { "type": "string" }, "isRequestZdr": { "type": "string" }, "hipaaRequested": { "type": "string" }, "quotaRequested": { "type": "string" }, "quotaEntityId": { "type": "string" }, "quotaEntityType": { "type": "string" }, "videoResolution": { "type": "string" }, "videoAspectRatio": { "type": "string" }, "queueName": { "type": "string" }, "consumerGroup": { "type": "string" }, "messageId": { "type": "string" }, "eventType": { "type": "string" }, "notificationUrl": { "type": "string" }, "sandboxSessionId": { "type": "string" }, "sandboxName": { "type": "string" }, "workflowRunId": { "type": "string" }, "workflowName": { "type": "string" }, "workflowStatus": { "type": "string" }, "stepRunId": { "type": "string" }, "workflowStepName": { "type": "string" }, "workflowEventType": { "type": "string" }, "region": { "type": "string" }, "specVersion": { "type": "string" }, "contentType": { "type": "string" }, "rewriteDestinationHostname": { "type": "string" }, "externalRewriteTargetHost": { "type": "string" }, "externalRewriteTargetPath": { "type": "string" }, "commitSha": { "type": "string" }, "reviewConclusion": { "type": "string" }, "pullRequestNumber": { "type": "string" }, "repositoryName": { "type": "string" }, "repositoryOwner": { "type": "string" }, "reviewStatus": { "type": "string" }, "pullRequestState": { "type": "string" }, "triggeringTag": { "type": "string" }, "redirectLocation": { "type": "string" }, "microfrontendsResponseReason": { "type": "string" }, "microfrontendsMatchedPath": { "type": "string" }, "microfrontendsDefaultAppDeploymentId": { "type": "string" }, "microfrontendsDefaultAppProjectId": { "type": "string" }, "service": { "type": "string" }, "isPrefetchRequest": { "type": "string" }, "spendReportGroupBy": { "type": "string" }, "spendReportDatePart": { "type": "string" }, "providerAttemptCanonicalSlug": { "type": "string" }, "providerAttemptCredentialType": { "type": "string" }, "providerAttemptSuccess": { "type": "string" }, "providerAttemptStatusCode": { "type": "string" }, "providerAttemptTimeout": { "type": "string" }, "providerAttemptIsFinal": { "type": "string" }, "providerAttemptNumber": { "type": "string" }, "providerAttemptTotalInRequest": { "type": "string" }, "generationId": { "type": "string" }, "sessionId": { "type": "string" }, "providerAttemptError": { "type": "string" }, "providerAttemptRegion": { "type": "string" }, "providerAttemptModelIndex": { "type": "string" }, "toolCallType": { "type": "string" }, "toolCallProvider": { "type": "string" }, "toolCallSuccess": { "type": "string" }, "toolCallErrorType": { "type": "string" }, "toolCallStatusCode": { "type": "string" } }, "additionalProperties": { "type": "number", "nullable": true } } } } ``` ### 400: One of the provided values in the request query is invalid. ### 401: The request is not authorized. ### 402: No description ### 403: You do not have permission to access this resource. --- ## Related - [web-analytics endpoints](/docs/rest-api#web-analytics) - [REST API overview](/docs/rest-api) - [OpenAPI spec](https://openapi.vercel.sh/) (machine-readable, all endpoints) --- [View full sitemap](/docs/sitemap)