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Amplitude Evaluation API

Remote flag and experiment evaluation operations

Amplitude Evaluation API is one of 29 APIs that Amplitude publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Evaluation. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 2 operations across 1 path, and defines 3 schemas. It is described by OpenAPI 3.2.0, at version 1.

Requests are made against a single base URL, https://api.lab.amplitude.com.

2 operations 1 paths 3 schemas 1 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1
Base URL
https://api2.amplitude.com
Authentication
API Key
Terms of Service
Resource Areas
1

Authentication & Security 1

Amplitude Evaluation API declares 1 security scheme for authenticating requests. An API key is passed in the header as Authorization (apiKeyAuth). By default, every request must be authenticated.

  • apiKeyAuth — Pass your deployment key in the Authorization header with the prefix Api-Key, for example Api-Key YOURDEPLOYMENTKEY.

Paths & Operations 2

Across 1 path, the API surfaces 2 operations — 1 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Evaluation 2

Remote flag and experiment evaluation operations

POST
/v1/vardata
Amplitude Evaluate Variants for a User
evaluateVariants body → 200400401
GET
/v1/vardata
Amplitude Evaluate Variants for a User via GET
evaluateVariantsGet 2 params → 200401

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are EvaluationRequest (5 properties), Variant (4 properties). Each schema is shown below with its type and property counts.

EvaluationRequest
object
5 properties
EvaluationResponse
object
A map of flag keys to variant objects representing the evaluated variant assignments for the user.
Variant
object
4 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

amplitude-evaluation-api-openapi.yml Raw ↑

Other APIs Amplitude publishes across the network.

Amplitude Batch Event Upload API
Amplitude Group Identify API
Amplitude Releases API
Amplitude Session Replay API
Amplitude User Privacy API
Amplitude Webhooks and Cohort Sync
Amplitude Annotations API
Amplitude Cohorts API
Amplitude Data Access API
Amplitude Data Deletion API
Amplitude Deployments API
Amplitude Event Categories API
Where this information came from

This is an independent, third-party profile of Amplitude Evaluation 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.

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