BNY (Bank of New York Mellon)

BNY Asset Servicing API

BNY Asset Servicing APIs expose the firm's custody, fund accounting, middle-office, transfer agency, ETF servicing, and data & analytics surface to institutional clients through the BNY Developer Marketplace. Asset Servicing is anchored by approximately $59.4 trillion in assets under custody and/or administration (Q1 2026) and underpins BNY's positioning as the world's largest custodian.

BNY Asset Servicing API is one of 5 APIs that BNY (Bank of New York Mellon) publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 1 machine-runnable capability that can be deployed as REST, MCP, or Agent Skill surfaces via Naftiko.

Tagged areas include Asset Servicing, Custody, Fund Accounting, Middle Office, and Data And Analytics. The published artifact set on APIs.io includes API documentation, an OpenAPI specification, and 1 Naftiko capability spec.

Documentation GitHub OpenAPI

Documentation

https://developer.bny.com/

Specifications

https://raw.githubusercontent.com/api-evangelist/bny-bank-of-new-york-mellon/refs/heads/main/openapi/bny-asset-servicing-api-openapi.yml

Other Resources

https://developer.bny.com/

https://apigateway.qa.bny.com

NaftikoCapability

https://raw.githubusercontent.com/api-evangelist/bny-bank-of-new-york-mellon/refs/heads/main/capabilities/bny-asset-servicing.yaml

OpenAPI Specification

openapi: 3.1.0
info:
  title: BNY Asset Servicing API
  description: >-
    BNY Asset Servicing APIs expose custody, fund accounting, middle-office, transfer agency, ETF servicing, and
    data & analytics surface to institutional clients through the BNY Developer Marketplace at developer.bny.com.
    Operations are illustrative; full reference is published behind Nexen single sign-on.
  version: '1.0'
  contact:
    name: BNY Developer Support
    url: https://developer.bny.com/
externalDocs:
  description: BNY Developer Marketplace
  url: https://developer.bny.com/
servers:
  - url: https://apigateway.bny.com
    description: Production
  - url: https://apigateway.qa.bny.com
    description: Sandbox
tags:
  - name: Asset Servicing
    description: Custody, fund accounting, middle-office, and transfer agency operations.
security:
  - bearerAuth: []
paths:
  /v1/status:
    get:
      operationId: getAssetServicingStatus
      summary: Get Asset Servicing Status
      description: >-
        Returns the current status of the BNY Asset Servicing API surface.
      tags:
        - Asset Servicing
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  status:
                    type: string
                  version:
                    type: string
        '401':
          description: Unauthorized
        '429':
          description: Too many requests
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer