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

> ## Agent Instructions
> AhaSend stores all message data in the EU. See /facts.
> The API base URL is https://api.ahasend.com. Send the API key in the Authorization: Bearer header. See /api-reference/authentication.
> Use send.ahasend.com for SMTP. Ports 25, 587 and 2525 use STARTTLS. Port 465 is not supported. See /smtp.
> For send-only integrations, create an API Key v2 under Credentials → Add and scope it to messages:send:{your-domain}. See /send-api/credentials and /api-reference/scopes.

# Get Campaign Stats via the API

> Read the results of an AhaSend marketing campaign: delivered messages, opens, clicks, unsubscribes, complaints, bounces and rates, as the report shows them.

The AhaSend API returns the numbers of a campaign, the same numbers as the campaign report in the dashboard. Access requires `campaigns:read`.

**Live counters:**
`recipients`, `delivered`, `opens`, `clicks`, `unsubscribes` and `complaints` are live. Opens and clicks do not include bots.

**Stored report:**

* `report` holds the numbers counted from the recipients of the campaign: openers, clickers, bounces, deferrals, recipients by status and bounces by bounce classification. `report.computed_at` is the time of the count.
* The report is counted again from time to time. When a request finds the report missing or old, it asks for a new count and answers the stored report. Read the stats again later to get the new numbers.
* `report` is `null` until the first count.
* `recount_failed` is `true` while the last count failed, so `report` can be old.

**Rates:**
`rates` gives percentages from 0 to 100 with two decimals. `open_rate` and `click_rate` use `delivered` as the base. `bounce_rate` and `deferral_rate` use `report.recipients` as the base. A rate is `null` while `report` is `null` or its base is zero.

To list the recipients behind a number in `report.by_status` or `report.by_bounce_classification`, use [List Campaign Recipients](/docs/api-reference/campaigns/get-campaign-recipients).

## Related Guides

* [API authentication](/docs/api-reference/authentication), [Permission scopes](/docs/api-reference/scopes), [Get Campaign](/docs/api-reference/campaigns/get-campaign).
* [API errors](/docs/api-reference/errors), [API rate limits](/docs/api-reference/rate-limits).


## OpenAPI

````yaml openapi.yaml GET /v2/accounts/{account_id}/campaigns/{campaign_id}/stats
openapi: 3.1.0
info:
  title: AhaSend API v2
  description: >
    The AhaSend API v2 allows you to send transactional emails, manage domains,
    webhooks, routes, API keys, and view statistics.


    ## Authentication

    All API requests must be authenticated using a Bearer token in the
    Authorization header:

    ```

    Authorization: Bearer aha-sk-64-CHARACTER-RANDOM-STRING

    ```


    ## Scopes

    API keys have specific scopes that control access to different resources and
    actions:


    ### Message Scopes

    - `messages:send:all` - Send messages from any domain in the account

    - `messages:send:{domain}` - Send messages from a specific domain

    - `messages:cancel:all` - Cancel messages from any domain

    - `messages:cancel:{domain}` - Cancel messages from a specific domain

    - `messages:read:all` - Read messages from any domain

    - `messages:read:{domain}` - Read messages from a specific domain


    ### Domain Scopes

    - `domains:read` - Read all domains

    - `domains:write` - Create and update domains

    - `domains:delete:all` - Delete any domain

    - `domains:delete:{domain}` - Delete a specific domain


    ### Account Scopes

    - `accounts:read` - Read account information

    - `accounts:write` - Update account settings

    - `accounts:billing` - Access billing information

    - `accounts:members:read` - Read account members

    - `accounts:members:add` - Add account members

    - `accounts:members:update` - Update account members

    - `accounts:members:remove` - Remove account members


    ### Webhook Scopes

    - `webhooks:read:all` - Read all webhooks

    - `webhooks:read:{domain}` - Read webhooks for a specific domain

    - `webhooks:write:all` - Create and update webhooks

    - `webhooks:write:{domain}` - Create and update webhooks for a specific
    domain

    - `webhooks:delete:all` - Delete any webhook

    - `webhooks:delete:{domain}` - Delete webhooks for a specific domain


    ### Route Scopes

    - `routes:read:all` - Read all routes

    - `routes:read:{domain}` - Read routes for a specific domain

    - `routes:write:all` - Create and update routes

    - `routes:write:{domain}` - Create and update routes for a specific domain

    - `routes:delete:all` - Delete any route

    - `routes:delete:{domain}` - Delete routes for a specific domain


    ### Suppression Scopes

    - `suppressions:read` - Read suppressions

    - `suppressions:write` - Create suppressions

    - `suppressions:delete` - Delete suppressions

    - `suppressions:wipe` - Delete the account's suppressions except protected
    ones (dangerous)


    ### Template Scopes

    - `templates:read` - Read transactional templates, their drafts and their
    published versions, and campaign templates

    - `templates:write` - Create and update transactional templates, and
    publish, discard and restore their drafts; create and update campaign
    templates

    - `templates:delete` - Delete transactional templates and campaign templates


    ### Campaign Scopes

    - `campaigns:read` - Read campaigns, their stats and their recipients

    - `campaigns:write` - Create, update and duplicate campaigns

    - `campaigns:delete` - Delete draft campaigns

    - `campaigns:send` - Send, unschedule and test-send campaigns


    ### Contact Scopes

    - `contacts:read` - Read contacts

    - `contacts:write` - Create and update contacts

    - `contacts:delete` - Delete contacts


    ### Contact lifecycle and attributes

    Contacts are account-global. A contact created through this API joins no

    list on its own; campaigns target lists, so add it to one with the Lists

    endpoints before a campaign can reach it.

    Contact subscription state and suppression records are independent:

    creating, updating, unsubscribing, resubscribing, or deleting a contact

    never creates, changes, or removes complaint, permanent, or protected

    suppressions. Prefer unsubscribe over delete when the goal is only to stop

    marketing mail, because unsubscribe is reversible and preserves contact

    history.


    Writable attribute keys and types come from the account's contact-attribute

    definitions managed in the dashboard; this API does not expose property

    definition CRUD. Writes accept only canonical values for those definitions,

    while reads remain legacy-safe and can return any recursively nested JSON

    value previously stored.


    An email used as `{id_or_email}` is a raw SDK argument and must be

    percent-encoded exactly once as a URL path segment by an HTTP client. For

    example, do not pre-encode `user+tag@example.com` before passing it to an

    SDK that encodes path parameters.


    ### List Scopes

    - `lists:read` - Read lists and list membership

    - `lists:write` - Create and update lists, and add or remove their contacts

    - `lists:delete` - Delete lists


    ### Lists and membership

    A list is a static, private, single opt-in container of contacts, and it is

    what a campaign targets. A membership carries its own `subscription_status`

    (`unconfirmed`, `confirmed`, `unsubscribed`, or `complained`), which is

    per-list consent and is independent of the contact's account-wide

    `unsubscribed` flag. A membership created without a status named is

    `confirmed`, because that is what a campaign reaches. `complained` is the

    mailbox provider's verdict, never writable, and a membership holding it is

    frozen.


    Deleting a list keeps its memberships, so an unsubscribe survives it.

    Removing a contact from a list deletes the membership row and discards that

    record with it, which is why unsubscribing is the reversible way to stop

    marketing mail on one list. Expanding a list's members with

    `include_contacts=true` requires `contacts:read` in addition to

    `lists:read`.


    ### SMTP Credentials Scopes

    - `smtp-credentials:read:all` - Read all SMTP credentials

    - `smtp-credentials:read:{domain}` - Read SMTP credentials for a specific
    domain

    - `smtp-credentials:write:all` - Create SMTP credentials

    - `smtp-credentials:write:{domain}` - Create SMTP credentials for a specific
    domain

    - `smtp-credentials:delete:all` - Delete any SMTP credentials

    - `smtp-credentials:delete:{domain}` - Delete SMTP credentials for a
    specific domain


    ### Statistics Scopes

    - `statistics-transactional:read:all` - Read all transactional statistics

    - `statistics-transactional:read:{domain}` - Read transactional statistics
    for a specific domain


    ### API Key Scopes

    - `api-keys:read` - Read API keys

    - `api-keys:write` - Create and update API keys

    - `api-keys:delete` - Delete API keys


    ### Sub-Account Scopes

    - `sub-accounts:read` - List and read sub accounts under the parent

    - `sub-accounts:write` - Create and update sub accounts

    - `sub-accounts:delete` - Soft-delete sub accounts

    - `sub-accounts:suspend` - Pause and resume sub accounts, and unpause their
    domains

    - `sub-accounts:usage` - Read per-sub-account usage and allocated cost

    - `sub-account-api-keys:read` - List and read API keys owned by sub accounts

    - `sub-account-api-keys:write` - Create and update API keys owned by sub
    accounts

    - `sub-account-api-keys:delete` - Delete API keys owned by sub accounts


    ## Rate Limiting

    - General API endpoints: 100 requests per second, 200 burst

    - Statistics endpoints: 1 request per second, 1 burst


    ## Pagination

    List endpoints use cursor-based pagination with the following parameters:

    - `limit`: Maximum number of items to return (default: 100, max: 100)

    - `after`: Pass `pagination.next_cursor` to fetch the next page

    - `before`: Pass `pagination.previous_cursor` to fetch the previous page


    `after` and `before` are mutually exclusive. A legacy `cursor` query may be

    accepted by parts of the server for backwards compatibility, but it is not

    part of the v2 public contract.


    ## Time Formats

    All timestamps must be in RFC3339 format, e.g., `2023-12-25T10:30:00Z`


    ## Idempotency

    The operations that explicitly declare the optional `Idempotency-Key`

    header support idempotency. Other POST operations do not gain idempotency

    implicitly. When the header is provided:

    - A fresh execution does not return `Idempotent-Replayed`.

    - A completed stored response is replayed with its original status and body
      and `Idempotent-Replayed: true`.
    - An unexpired in-progress execution returns HTTP 409 with
      `Idempotent-Replayed: false` and a positive integer `Retry-After` header.
    - Reusing a key with a different HTTP method, resolved request path, or
      request body returns HTTP 422. That response has neither
      `Idempotent-Replayed` nor `Retry-After`.
    - For ordinary idempotent operations, deterministic 2xx and 4xx outcomes
      produced after the idempotency middleware are stored and replayed.
      Authentication and IP-allow-list failures happen before idempotency and
      are therefore not stored.
    - The two secret-bearing API-key create operations use manual encrypted
      completion. They store and replay a successful 201, including the same
      one-time `secret_key`; a controller-produced 4xx is not stored and leaves
      the key in progress until its execution lease expires.
    - Server errors (5xx), handler failures, and panics are not stored. The key
      is released so retrying the same request with the same key re-executes it.
      The v2 API does not use an HTTP 412 failed-key tombstone.
    - Idempotency keys for non-secret responses expire after 24 hours.

    - Encrypted API-key creation replay responses expire after 5 minutes.


    ## IP Allow Lists

    Each API key can carry an `ip_allow_list`: a set of source IPs that restrict
    where the key may authenticate from.

    - Entries are CIDR blocks (e.g. `203.0.113.0/24`) or bare IPv4/IPv6
    addresses (stored as a `/32` or `/128`). They are canonicalized and
    de-duplicated; the allow-all prefixes `0.0.0.0/0` and `::/0` are rejected,
    and at most 100 entries are allowed after de-duplication (a longer list is
    rejected with HTTP 400).

    - An empty list (the default) places no restriction.

    - When the list is non-empty, any authenticated request whose client IP is
    not covered by an entry is rejected with HTTP 403 on every v2 endpoint,
    regardless of the key's scopes.

    - Manage the list with the `ip_allow_list` field on the API-key create and
    update endpoints (including the sub-account API-key endpoints).

    - When a key updates its own `ip_allow_list` to a value that excludes the
    caller's current IP, the update is rejected with HTTP 409 to prevent
    self-lockout. Updating a sub-account key from a parent key has no such
    guard.
  version: 2.0.0
  contact:
    email: support@ahasend.com
  license:
    name: MIT
    identifier: MIT
servers:
  - url: https://api.ahasend.com
    description: Production server
security:
  - BearerAuth: []
tags:
  - name: Utility
    description: Utility endpoints for health checks and diagnostics
  - name: API Keys
    description: Manage API keys for authentication and access control
  - name: Domains
    description: Manage sending domains
  - name: Messages
    description: Send and manage transactional messages
  - name: Accounts
    description: Manage account settings and members
  - name: Contacts
    description: Read, create, update, batch upsert, and delete account-global contacts
  - name: Templates
    description: >-
      Create, change, publish and delete the account's transactional templates,
      and read them with their drafts, their published versions and the
      variables a send must supply
  - name: Campaign Templates
    description: >-
      Create, change, read and delete the account's campaign templates, the
      designs a campaign copies when it is made from one
  - name: Campaigns
    description: >-
      Create, change, read, duplicate, delete, test and send the account's
      marketing campaigns, and read their stats and recipients
  - name: Lists
    description: Manage contact lists and the contacts on them
  - name: Suppressions
    description: Manage email suppressions
  - name: Routes
    description: Manage inbound email routing
  - name: Webhooks
    description: Manage webhook notifications
  - name: SMTP Credentials
    description: Manage SMTP authentication credentials
  - name: Statistics
    description: Access transactional email statistics
  - name: Message Events
    description: Webhooks for outbound message delivery events
  - name: Suppression Events
    description: Webhooks for suppression list changes
  - name: Domain Events
    description: Webhooks for domain configuration issues
  - name: Route Events
    description: Webhooks for inbound email routing
paths:
  /v2/accounts/{account_id}/campaigns/{campaign_id}/stats:
    get:
      tags:
        - Campaigns
      summary: Get Campaign Stats
      description: |
        Returns the numbers of a campaign: its live counters, its stored
        report and the rates from both, the numbers the dashboard's report
        shows. The stored report is recounted from time to time; a request
        that finds it missing or old asks for a recount and answers what is
        stored.
      operationId: getCampaignStats
      parameters:
        - name: account_id
          in: path
          required: true
          description: Account ID
          schema:
            type: string
            format: uuid
        - name: campaign_id
          in: path
          required: true
          description: Campaign ID
          schema:
            type: string
            format: uuid
      responses:
        '200':
          description: Campaign stats
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CampaignStats'
        '400':
          description: Invalid campaign_id
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '403':
          description: Missing `campaigns:read` scope
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: Campaign not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '429':
          description: Too many requests
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      security:
        - BearerAuth:
            - campaigns:read
      x-code-samples:
        - lang: go
          label: AhaSend Go SDK
          source: |
            package main

            import (
              "context"
              "fmt"
              "log"
              "os"

              "github.com/AhaSend/ahasend-go/api"
              "github.com/google/uuid"
            )

            func main() {
              client := api.NewAPIClient(api.WithAPIKey(os.Getenv("AHASEND_API_KEY")))
              accountID := uuid.MustParse(os.Getenv("AHASEND_ACCOUNT_ID"))
              ctx := context.Background()

              campaignID := uuid.MustParse("11111111-1111-4111-8111-111111111111")

              response, _, err := client.CampaignsAPI.GetCampaignStats(ctx, accountID, campaignID)
              if err != nil {
                log.Fatalf("Error getting campaign stats: %v", err)
              }
              fmt.Printf("Delivered %d of %d\n", response.Delivered, response.Recipients)
              // A rate is nil until the report is counted and its base is not zero.
              if response.Rates.OpenRate != nil {
                fmt.Printf("Open rate: %.2f%%\n", *response.Rates.OpenRate)
              }
              if response.Report != nil {
                for status, count := range response.Report.ByStatus {
                  fmt.Printf("%s: %d\n", status, count)
                }
              }
            }
        - lang: javascript
          label: Node.js 22+ (AhaSend SDK)
          source: >
            import { AhaSendClient } from "@ahasend/sdk";


            const client = AhaSendClient.fromEnv();

            const campaignId = "00000000-0000-4000-8000-000000000014";

            const stats = await client.campaigns.getStats(campaignId);

            console.log("Campaign stats loaded.", { delivered: stats.delivered,
            rates: stats.rates });
components:
  schemas:
    CampaignStats:
      type: object
      required:
        - object
        - campaign_id
        - recipients
        - delivered
        - opens
        - clicks
        - unsubscribes
        - complaints
        - report
        - rates
        - recount_failed
      description: |
        The numbers of a campaign. The counters are live; `report` is the
        stored report, which is recounted from time to time. A request
        never counts: when the report is missing or old, it asks for a
        recount and answers what is stored, so read again later for the
        new numbers.
      properties:
        object:
          type: string
          enum:
            - campaign_stats
          description: Object type identifier
        campaign_id:
          type: string
          format: uuid
          description: Campaign ID
        recipients:
          type: integer
          description: Recipients the campaign sends to
        delivered:
          type: integer
          description: Messages delivered
        opens:
          type: integer
          description: Opens, without bots
        clicks:
          type: integer
          description: Clicks, without bots
        unsubscribes:
          type: integer
          description: Recipients who unsubscribed
        complaints:
          type: integer
          description: Recipients who marked the message as spam
        report:
          oneOf:
            - $ref: '#/components/schemas/CampaignStatsReport'
            - type: 'null'
          description: The stored report. Null until the campaign's first recount.
        rates:
          $ref: '#/components/schemas/CampaignStatsRates'
        recount_failed:
          type: boolean
          description: >-
            True while the last recount of the report failed, so `report` may be
            old.
    ErrorResponse:
      type: object
      description: |
        Human-readable API error. The server currently sends no stable machine
        error code. In particular, clients must not parse `message` to
        distinguish IP-allow-list, scope, ownership, plan, self-lockout,
        suppression-duplicate, or other errors that share an HTTP status.
      additionalProperties: false
      required:
        - message
      properties:
        message:
          type: string
          description: Error description
      example:
        message: Error message
    CampaignStatsReport:
      type: object
      required:
        - computed_at
        - recipients
        - openers
        - clickers
        - bounces
        - deferrals
        - by_status
        - by_bounce_classification
      description: >-
        The campaign's stored report, which is recounted from its recipients
        from time to time.
      properties:
        computed_at:
          type: string
          format: date-time
          description: When the report was counted
        recipients:
          type: integer
          description: >-
            The recipients the report counted, the base of `bounce_rate` and
            `deferral_rate`
        openers:
          type: integer
          description: Contacts who opened, each once, without bots
        clickers:
          type: integer
          description: Contacts who clicked, each once, without bots
        bounces:
          type: integer
          description: Recipients that bounced or failed
        deferrals:
          type: integer
          description: Recipients whose delivery was deferred
        by_status:
          type: object
          additionalProperties:
            type: integer
          description: >-
            Recipients by status, under the names the dashboard's report shows,
            such as `Queued`, `Delivered`, `Bounced` or `Administratively
            Bounced`. Each name is a `status` of List Campaign Recipients.
        by_bounce_classification:
          type: object
          additionalProperties:
            type: integer
          description: >-
            Bounces by bounce classification. `Unknown` counts the bounces with
            no classification and has no recipient page; every other key is a
            `bounce_classification` of List Campaign Recipients.
    CampaignStatsRates:
      type: object
      required:
        - open_rate
        - click_rate
        - bounce_rate
        - deferral_rate
      description: >-
        Percentages from 0 to 100 with two decimals. Each is null while `report`
        is null or its base is zero.
      properties:
        open_rate:
          type:
            - number
            - 'null'
          description: Openers out of `delivered`, at most 100
        click_rate:
          type:
            - number
            - 'null'
          description: Clickers out of `delivered`, at most 100
        bounce_rate:
          type:
            - number
            - 'null'
          description: Bounces out of `report.recipients`
        deferral_rate:
          type:
            - number
            - 'null'
          description: Deferrals out of `report.recipients`
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: aha-sk-64-CHARACTER-RANDOM-STRING
      description: |
        API key for authentication. Non-empty Security Requirement values are
        AhaSend API-key roles. Roles listed within one requirement object are
        jointly required; separate requirement objects are alternatives.

````

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