Blackstone
Blackstone is the world's largest alternative asset manager with over $1 trillion in assets under management across private equity, real estate, credit, and hedge fund strategies. Blackstone serves institutional investors including pension funds, sovereign wealth funds, endowments, and foundations, as well as accredited individual investors through its private wealth solutions. Technology and data platforms are central to Blackstone's investment operations and portfolio company management.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Blackstone the way a machine reads it — 31 machine-readable artifacts across 1 API, 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 — Blackstone scores 35.0/100 (thin), with a separate agent-readiness read of 19/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Why this profile is thin
Blackstone runs a real GitBook developer-documentation site at docs.blackstone.com, but every path on it — including /openapi.json, /llms.txt and /robots.txt — 307s to the GitBook VA-Okta visitor-auth handshake against Blackstone's Okta tenant at login.bx.com, so no contract is readable without a Blackstone-issued identity.
An API exists — we simply could not reach the contract without credentials or a sales conversation. This one is Blackstone's to change: publishing the reference and a machine-readable spec at a public URL, while keeping key issuance behind whatever gate they like, would let an integrator evaluate the API before committing to a call.
What we probed
https://docs.blackstone.com/openapi.json→ HTTP 307https://docs.blackstone.com/llms.txt→ HTTP 307https://www.bxaccess.com/openapi.json→ HTTP 302https://www.blackstone.com/robots.txt→ HTTP 403https://auth.bx.com/identity-broker/.well-known/openid-configuration→ HTTP 200
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. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-10 · rubric v0.20.0
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</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Blackstone
Each block below is one kind of artifact we hold for Blackstone. 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 1
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.
Blackstone Investor Portal
Blackstone provides institutional and individual investors with access to portfolio information, capital account statements, fund documents, and reporting through its Investor P...
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Blackstone Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Blackstone Finops
FINOPSFeatures 6
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
Investor Portal
Web-based portal providing investors with access to fund performance, capital account statements, distributions, and investor documents.
Fund Reporting
Quarterly and annual fund-level reporting including audited financials, NAV calculations, and investor-level P&L attribution.
Alternative Data Integration
Blackstone's data science and technology teams develop proprietary data products and integrations to support portfolio company operations and investment research.
Portfolio Company Technology
Blackstone actively supports portfolio companies in technology transformation, digital infrastructure buildout, and enterprise software adoption.
Capital Call and Distribution Notices
Automated delivery of capital call and distribution notices to investors via the portal, email, and data feed integrations.
Tax Document Delivery
Annual K-1 and other tax documents delivered electronically to limited partners through the Investor Portal.
Semantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Blackstone Context
JSON-LDSpectral Rules 2
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Blackstone API Rules
SPECTRALBlackstone API Rules
SPECTRALJSON Schema 2
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
Blackstone Fund
JSON SCHEMABlackstone Investor Account
JSON SCHEMAJSON Structure 2
JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.
JSON Structure definitions describing this provider's data shapes.
Blackstone Fund Structure
JSON STRUCTUREBlackstone Investor Account Structure
JSON STRUCTUREExamples 2
Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.
Example request and response payloads for these APIs.
Blackstone Fund Example
EXAMPLESecurity Posture 3
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.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Use Cases 4
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
Institutional Investor Reporting
Institutional LPs access fund reporting, capital call and distribution notices, and tax documents through the investor portal or via data integrations.
Portfolio Monitoring
Blackstone's investment teams use proprietary data platforms to monitor portfolio company performance metrics, market signals, and risk indicators.
Data Aggregation
Third-party data aggregators and institutional investor platforms may access Blackstone investor data via direct data feed agreements.
Wealth Management Distribution
Registered investment advisors and wealth managers access Blackstone alternative products through platform integrations for accredited investor clients.
Integrations 4
Pre-built integrations with other platforms tell you where this provider already fits in a stack.
Pre-built integrations with other platforms and tools.
iCapital Network
Blackstone distributes alternative investments to wealth management clients through iCapital Network's feeder fund and technology platform.
CAIS
Blackstone alternative investment products are available through the CAIS platform for independent and institutional advisors.
Yardi
Blackstone Real Estate uses Yardi for property management, accounting, and data reporting across its real estate portfolio.
Allvue Systems
Blackstone's credit and private equity operations use Allvue for portfolio monitoring, investor reporting, and fund accounting.
Resources
Every other property we hold for Blackstone — 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 1
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 4
Pagination, idempotency, versioning, errors, and events
Access & Security 5
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/blackstone · machine-readable index on apis.io
This is an independent, third-party profile of Blackstone, 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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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.