How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Need help?

Contact us
AppsFlyer

AppsFlyer Download Events API

The Download Events API from AppsFlyer — 1 operation(s) for download events.

Documentation Provider Profile APIs.io OpenAPI GitHub

AppsFlyer Download Events API is one of 72 APIs that AppsFlyer publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Download Events. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and authentication docs.

This API exposes 1 operation across 1 path, and defines 28 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against 4 base URLs: https://engagements.appsflyer.com/v1.0/c2s/download/app/android, https://sandbox-engagements.appsflyer.com/v1.0/c2s/download/app/android/, https://engagements.appsflyer.com/v1.0/s2s/download/app/android, https://sandbox-engagements.appsflyer.com/v1.0/s2s/download/app/android/.

1 operations 1 paths 28 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Base URL
https://hq1.appsflyer.com/api/
Authentication
API Key
Resource Areas
1

Authentication & Security 1

AppsFlyer Download Events API declares 1 security scheme for authenticating requests. An API key is passed in the header as authorization (HeaderApiKeyAuth). By default, every request must be authenticated.

  • HeaderApiKeyAuth — AppsFlyer will provide a secret key (uuid v4) which is unique per partner integration

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Download Events 1
POST
/{app_id}
Download event
1 param body → 202400401500503504

Schemas 28

The contract defines 28 schemas that model the data the API accepts and returns. The most detailed is Error (1 property). Each schema is shown below with its type and property counts.

AfDeviceIdValue
string
Device identifier type. Depends on the device identifier provided. In case it is gaid, the value must be in a UUID format
AfMediaSource
string
This is the partner unique identifier as defined on AppsFlyer platform. It cannot start with: +,-,=,@
AfDeviceIdEncoding
string
Device identifier encoding method
AfSubSiteId
string
Ad sub-network / Publisher ID
AfDeviceIdType
string
Device identifier type
AfAdId
string
Ad ID
AfAdType
string
Ad network unique transaction identifiers.
AfCustom
string
Optional custom parameter defined by the advertiser
AfCostValue
string
AfAdSetId
string
Ad Set ID
AfAdSet
string
Ad Set Name
AflookbackWindow
string
Attribution lookback window Configurable number of days/hours for the lookback window attribution period. Supported values: 1d - 30d (days) OR 1h-23h (hours).…
Error
object
1 property 1 required
AfRequestId
string
An identifier that uniquely identifies a request by partner. Value must be in a UUID format.
AfChannel
string
The media source channel through which the ads are distributed
AfCampaign
string
Campaign name
AfAd
string
Ad Name
AfPrt
string
Agency Account Name
AfOsVersion
string
The device’s osversion. Only digits and dots allowed
AfSiteId
string
Unique ID that identifies the publisher that displays the ad
AfCostModel
string
Cost model
AfEngagementType
string
The type of engagement
AfCampaignId
string
Campaign ID
AfModel
string
The device’s model
AfClickId
string
Ad network unique transaction identifier
AfCostCurrency
string
Use a currency code which is compliant with ISO-4217.
AfUserAgent
string
The Device’s User Agent
AfIp
string
The device’s IP the agent sent in its request to the partner’s server. [IPv6 or IPv4]. For, IPv6,values must be the short version (according to RFC5952) and UR…

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

appsflyer-download-events-api-openapi.yml Raw ↑

Other APIs AppsFlyer publishes across the network.

Creative External API
AE Profile APIs.io
AppsFlyer MCP Server
AE Profile APIs.io
AppsFlyer Account connections API
AE Profile APIs.io
AppsFlyer Account Integration API
AE Profile APIs.io
AppsFlyer Account splits API
AE Profile APIs.io
AppsFlyer Active audiences API
AE Profile APIs.io
AppsFlyer Active integrations API
AE Profile APIs.io
AppsFlyer Ad Revenue raw data API
AE Profile APIs.io
AppsFlyer Add excluded app API
AE Profile APIs.io
AppsFlyer Additional Identifiers Handling API
AE Profile APIs.io
AppsFlyer Aggregate (user acquisition and retargeting) API
AE Profile APIs.io
AppsFlyer Allowed devices API
AE Profile APIs.io
#Download Events
← Back to A APIs
API Details
ID
appsflyer:appsflyer-download-events-api
Base URL
https://hq1.appsflyer.com/api/
Docs
https://dev.appsflyer.com/hc/reference/api-reference-overview
Provider
AppsFlyer
APIs.io →  GitHub →
Explore more
All APIs Providers APIs.io Network
Work with this as data

Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.

Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.

MCP tools for apis
4 tools reach this content
  • search_api_evangelistSearch every content type across the network at once.
  • find_relatedThe shared-tag relevance graph — what else covers this.
  • get_tagEverything one tag labels, across all content types.
  • guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
All tools & prompts
Call it yourself
curl for this page
Search the network for this 
curl "https://api.apievangelist.com/v1/search?q=appsflyer-download-events-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/appsflyer-download-events-api"

Discovery needs no key. Full bodies and the synthesis endpoints are Pro.

Get an API key

Free tier, no email required. Sign in with whichever identity you already have.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have. Your account

Where this information came from

This is an independent, third-party profile of AppsFlyer Download Events API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.