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Mailchimp Metadata API

Manage custom metadata fields that can be attached to messages for tracking and filtering.

Mailchimp Metadata API is one of 120 APIs that Mailchimp publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

This API exposes 4 JSON Schema definitions.

Tagged areas include Metadata. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an AsyncAPI specification, a JSON-LD context, an API reference, a getting-started guide, and 4 JSON Schemas.

This API exposes 4 operations across 4 paths, and defines 2 schemas. It is described by OpenAPI 2.0, at version 3.0.55.

Requests are made against the base URL https://server.api.mailchimp.com/3.0.

4 operations 4 paths 2 schemas 4 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 2.0
API Version
3.0.55
Base URL
https://server.api.mailchimp.com/3.0
Authentication
basic
Resource Areas
1

Authentication & Security 1

Mailchimp Metadata API declares 1 security scheme for authenticating requests. It defines a basic scheme (basicAuth). By default, every request must be authenticated.

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 POST. Each is listed below with its method, path, parameters, and response codes.

Metadata 4

Manage custom metadata fields that can be attached to messages for tracking and filtering.

POST
/metadata/list
Mailchimp List Metadata Fields
postMetadataList body → 200400401500
POST
/metadata/add
Mailchimp Add a Metadata Field
postMetadataAdd body → 200400401500
POST
/metadata/update
Mailchimp Update a Metadata Field
postMetadataUpdate body → 200400401500
POST
/metadata/delete
Mailchimp Delete a Metadata Field
postMetadataDelete body → 200400401500

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed are Error (4 properties), MetadataField (3 properties). Each schema is shown below with its type and property counts.

Error
object
A standard error response from the Mandrill API.
4 properties
MetadataField
object
A custom metadata field definition.
3 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

mailchimp-metadata-api-openapi.yml Raw ↑

Other APIs Mailchimp publishes across the network.

Mailchimp Open Commerce
Mailchimp Abuse API
Mailchimp Account Export API
Mailchimp Accounts API
Mailchimp Actions API
Mailchimp Activity API
Mailchimp Advice API
Mailchimp Allowlists API
Mailchimp Answers API
Mailchimp Applications API
Mailchimp Archive API
Mailchimp Authorized API
Where this information came from

This is an independent, third-party profile of Mailchimp Metadata 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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