> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apollodeploy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get email performance

> Returns delivery and engagement totals for one email, including opens, clicks, bounces, and complaints when available.

### Requirements

- **Permission:** `emails:send` or `emails:read` or `metrics:read`.
- **HTTP rate limit:** 120 requests per 60 seconds per API key.



## OpenAPI

````yaml /signal/api-reference/openapi.json get /v1/metrics/emails/{id}
openapi: 3.1.0
info:
  title: Apollo Signal API
  version: 1.0.0
  description: >-
    Public REST API for transactional email, contacts, audiences, webhooks,
    metrics, projects, and sending domains.
servers:
  - url: https://api.signal.apollodeploy.com
    description: Production
security: []
tags:
  - name: Emails
    description: Send, inspect, cancel, validate, and stream transactional email activity.
  - name: Metrics
    description: Read project, topic, message, and deliverability analytics.
  - name: Suppressions
    description: Manage addresses that Apollo Signal must not send to.
  - name: Segments
    description: Create dynamic contact groups and inspect their membership.
  - name: Topics
    description: Manage subscription topics and topic membership.
  - name: Contact properties
    description: Define the custom fields available on project contacts.
  - name: Contacts
    description: >-
      Manage contacts, audience membership, images, activity, and engagement
      data.
  - name: Webhooks
    description: Manage webhook endpoints, deliveries, tests, and replays.
  - name: API key usage
    description: Inspect API key metadata and request usage without exposing raw keys.
  - name: Projects
    description: Inspect projects and project-scoped email logs.
  - name: Sending domains
    description: >-
      Register, verify, inspect, and remove sending domains and BIMI
      configuration.
paths:
  /v1/metrics/emails/{id}:
    get:
      tags:
        - Metrics
      summary: Get email performance
      description: >-
        Returns delivery and engagement totals for one email, including opens,
        clicks, bounces, and complaints when available.


        ### Requirements


        - **Permission:** `emails:send` or `emails:read` or `metrics:read`.

        - **HTTP rate limit:** 120 requests per 60 seconds per API key.
      operationId: getEmailPerformance
      parameters:
        - name: id
          in: path
          required: true
          deprecated: false
          explode: false
          schema:
            type: string
            title: String
          description: Email identifier.
      responses:
        '200':
          headers: {}
          content:
            application/json:
              schema:
                $ref: >-
                  #/components/schemas/com.apollodeploy.signal.feature.metrics.api.model.EmailPerformanceResponse
          description: Request completed successfully.
        '401':
          headers: {}
          content:
            application/problem+json:
              schema:
                $ref: >-
                  #/components/schemas/com.apollodeploy.commons.core.error.ApiProblem
          description: >-
            The API key or stream token is missing, invalid, expired, or
            inactive.
        '403':
          description: >-
            The credential lacks the required permission or cannot access this
            project.
          headers: {}
          content:
            application/problem+json:
              schema:
                $ref: >-
                  #/components/schemas/com.apollodeploy.commons.core.error.ApiProblem
        '404':
          headers: {}
          content:
            application/problem+json:
              schema:
                $ref: >-
                  #/components/schemas/com.apollodeploy.commons.core.error.ApiProblem
          description: The requested resource was not found in the authenticated project.
        '429':
          description: >-
            The endpoint rate limit was exceeded. Wait for the `Retry-After`
            interval before retrying.
          headers:
            Retry-After:
              description: Whole seconds to wait before retrying.
              schema:
                type: integer
                minimum: 1
          content:
            application/problem+json:
              schema:
                $ref: >-
                  #/components/schemas/com.apollodeploy.commons.core.error.ApiProblem
      deprecated: false
      security:
        - bearerAuth: []
components:
  schemas:
    com.apollodeploy.signal.feature.metrics.api.model.EmailPerformanceResponse:
      type: object
      properties:
        bounced:
          type: boolean
          title: Boolean
        clicked:
          type: boolean
          title: Boolean
        complained:
          type: boolean
          title: Boolean
        computedAt:
          type: string
          title: String
        delivered:
          type: boolean
          title: Boolean
        emailId:
          type: string
          title: String
        fromAddress:
          type: string
          title: String
        lastEventAt:
          type: string
          title: String
        opened:
          type: boolean
          title: Boolean
        readCategory:
          type: string
          title: String
        readEngaged:
          type: boolean
          title: Boolean
        readTimeSeconds:
          type: number
          format: double
          title: Double
        sentAt:
          type: string
          title: String
        status:
          type: string
          title: String
        subject:
          type: string
          title: String
        topicId:
          type: string
          title: String
        totalClicks:
          type: integer
          format: int32
          title: Int
        unsubscribed:
          type: boolean
          title: Boolean
      required:
        - bounced
        - clicked
        - complained
        - computedAt
        - delivered
        - emailId
        - fromAddress
        - opened
        - readEngaged
        - status
        - subject
        - totalClicks
        - unsubscribed
      title: EmailPerformanceResponse
    com.apollodeploy.commons.core.error.ApiProblem:
      type: object
      properties:
        code:
          type: string
          title: ErrorCode
        detail:
          type: string
          title: String
        errors:
          type: array
          items:
            $ref: >-
              #/components/schemas/com.apollodeploy.commons.core.error.FieldProblem
          title: List<FieldProblem>
        instance:
          type: string
          title: ProblemInstance
        requestId:
          type: string
          title: String
        status:
          type: integer
          format: int32
          title: Int
        title:
          type: string
          title: String
        type:
          type: string
          title: ProblemType
      required:
        - code
        - status
        - title
        - type
      title: ApiProblem
    com.apollodeploy.commons.core.error.FieldProblem:
      type: object
      properties:
        detail:
          type: string
          title: String
        pointer:
          type: string
          title: String
      required:
        - detail
        - pointer
      title: FieldProblem
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Project-bound Apollo Signal API key. Keys begin with `ap_signal_` and
        must carry the permission shown on the operation.

````