BNY Mellon
BNY Mellon (legal parent The Bank of New York Mellon Corporation, rebranded to "BNY" in 2024) is a US money-center bank and the world's largest custodian, overseeing roughly $50 trillion in assets under custody and/or administration. Its principal banking subsidiary, The Bank of New York Mellon, is a nationally chartered bank (OCC-supervised) headquartered in New York City, operating across Securities Services, Market & Wealth Services, and Investment & Wealth Management with brand families including Pershing, Eagle Investment Systems, and BNY Markets. On open finance, BNY runs a genuine first-party developer program — the BNY Developer Marketplace at developer.bny.com (formerly marketplace.bnymellon.com) — publishing Treasury Services (payments, liquidity, cash management, trade finance, FX), Asset Servicing, Markets, and Pershing API families to corporate, fintech, and financial-institution clients. Registration and full API reference are gated behind Nexen single sign-on, and no OpenAPI/Swagger is publicly downloadable. BNY also ships a public, smart-contract-only "Data On-Chain" product that broadcasts fund accounting data to Ethereum. Consumer/business-banking account data is reached primarily through aggregators such as Plaid rather than a first-party consumer data API. No FDX participation or CFPB 1033 posture is publicly documented.
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles BNY Mellon the way a machine reads it — 6 machine-readable artifacts across 5 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — BNY Mellon scores 23.2/100 (emerging), with a separate agent-readiness read of 0/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile BNY Mellon
Each block below is one kind of artifact we hold for BNY Mellon. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 5
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
BNY Treasury Services API
Treasury Services API family covering payments (USD clearing, global ACH, RTP, wires, Pay by Bank), liquidity, cash management, trade finance, and FX, exposed to corporate and f...
BNY Asset Servicing API
Asset Servicing API family for custody, fund accounting, middle-office, and transfer-agency operations, published through the BNY Developer Marketplace. API reference is gated b...
BNY Markets API
Markets API family spanning FX, securities finance, fixed income, and equities, published through the BNY Developer Marketplace. API reference is gated behind Nexen single sign-...
BNY Pershing API
Pershing API family for clearing, custody, and the NetX360+ / Wove wealth platforms serving broker-dealers and RIAs, published through the BNY Developer Marketplace. API referen...
BNY Data On-Chain
Public, smart-contract-only product that broadcasts BNY-attested fund accounting data to public blockchains for on-chain and off-chain consumers (first implementation is the Bla...
Security Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for BNY Mellon — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
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