Arch Labs
Arch (Arch Labs, Inc.) is a private-markets infrastructure platform that centralizes the administration of alternative investments for individual investors, wealth managers, family offices, institutional allocators, CPAs, fund managers and their advisors. Acting as a "portal of portals," Arch collects and classifies investment correspondence, parses account statements and cash flows, automates capital-call and distribution workflows, tracks tax-document deadlines, and produces standardized portfolio views and AI-generated manager-update summaries across private credit, real estate, venture capital, hedge funds and private equity. Its Client API exposes holdings, investing/issuing entities, activities, cash flows, tasks, tax documents, user roles and Addepar exports, and it integrates with Addepar, Salesforce and Bipsync. Backed by Craft Ventures, Menlo Ventures, Oak HC/FT and others.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Arch Labs the way a machine reads it — 35 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 — Arch Labs scores 45.1/100 (developing), with a separate agent-readiness read of 24/100 (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.
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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How we profile Arch Labs
Each block below is one kind of artifact we hold for Arch Labs. 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 15
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.
Arch Labs Accounts API
The Accounts API from Arch Labs — 2 operation(s) for accounts.
Arch Labs Activities API
Interact with Arch objects representing financial updates
Arch Labs Addepar API
The Addepar API from Arch Labs — 1 operation(s) for addepar.
Arch Labs Authentication API
The Authentication API from Arch Labs — 1 operation(s) for authentication.
Arch Labs Cash Flows API
Read and write data relating to money inflow / outflow
Arch Labs Firms API
Reference info about firms.
Arch Labs Holdings API
Read holding data and push new investments.
Arch Labs Investing Entities API
Read from and create new investing entities
Arch Labs Issuing Entities API
Read from and create new issuing entities
Arch Labs Lookthroughs API
Fetch data relating to the underling investments made by your own investments
Arch Labs Offerings API
Get data on individual investment offering opportunities offered by your holdings
Arch Labs Tasks API
The Tasks API from Arch Labs — 6 operation(s) for tasks.
Arch Labs Tax Documents API
The Tax Documents API from Arch Labs — 4 operation(s) for tax documents.
Arch Labs User Roles API
The User Roles API from Arch Labs — 1 operation(s) for user roles.
Arch Labs Users API
The Users API from Arch Labs — 2 operation(s) for users.
Scroll within the panel for all 15 ·
Open Collections 16
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONArch Client Accounts API
OPEN COLLECTIONArch Client Accounts Activities API
OPEN COLLECTIONArch Client Accounts Addepar API
OPEN COLLECTIONArch Client Accounts Authentication API
OPEN COLLECTIONArch Client Accounts Cash Flows API
OPEN COLLECTIONArch Client Accounts Firms API
OPEN COLLECTIONArch Client Accounts Holdings API
OPEN COLLECTIONArch Client Accounts Investing Entities API
OPEN COLLECTIONArch Client Accounts Issuing Entities API
OPEN COLLECTIONArch Client Accounts Lookthroughs API
OPEN COLLECTIONArch Client Accounts Offerings API
OPEN COLLECTIONArch Client Accounts Tasks API
OPEN COLLECTIONArch Client Accounts Tax Documents API
OPEN COLLECTIONArch Client Accounts User Roles API
OPEN COLLECTIONArch Client Accounts Users API
OPEN COLLECTIONScroll within the panel for all 16 ·
Security Posture 4
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 Arch Labs — 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 4
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 1
Pagination, idempotency, versioning, errors, and events
Access & Security 6
Authentication, authorization, and security posture
Operate 2
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
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/arch-labs · machine-readable index on apis.io
This is an independent, third-party profile of Arch Labs, 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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