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Morningstar ByAllAccounts API

REST account-aggregation API from Morningstar's ByAllAccounts business, aggregating held-away investment account data for wealth platforms, also reachable through the us-api.morningstar.com aggapi gateway.

Morningstar ByAllAccounts API is one of 18 APIs that Morningstar publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Account Aggregation, Wealth, and Data Aggregation. The published artifact set on APIs.io includes API documentation and an OpenAPI specification.

This API exposes 2 operations across 2 paths. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against 3 base URLs: https://www.us-api.morningstar.com/token, https://www.emea-api.morningstar.com/token, https://www.apac-api.morningstar.com/token.

2 operations 2 paths 0 schemas 1 DELETE1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://www.byallaccounts.net/api/v1
Authentication
HTTP Basic
Resource Areas
1

Authentication & Security 1

Morningstar ByAllAccounts API declares 1 security scheme for authenticating requests. It accepts HTTP basic authentication (BasicAuth). By default, every request must be authenticated.

Paths & Operations 2

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

Accounts 2
POST
/accounts/aggregate
Request aggregation of accounts for an authenticated investor user
aggregateAccountsUsingPOST 1 param → 201400401403404500
DELETE
/accounts/{id}
Delete an account
deleteUsingDELETE 1 param → 204401403404500

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

morningstar-accounts-api-openapi.yml Raw ↑

Other APIs Morningstar publishes across the network.

Morningstar Market Data Web Services API
Morningstar Authentication API
Morningstar Time Series API
Morningstar Screener APIs
Morningstar Investment Details APIs
Morningstar Investment List API
Morningstar Portfolio Analysis APIs
Morningstar AI Insights API
Morningstar Scenario Analysis API
Morningstar Risk Profiler API
Morningstar Universe API
Morningstar Financial Planning APIs
Where this information came from

This is an independent, third-party profile of Morningstar ByAllAccounts 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.

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