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.

Arch Labs publishes 1 API on the APIs.io network: Arch Client API. Tagged areas include Company, Fintech, Alternative Investments, Private Markets, and Wealth Management.

Arch Labs’ developer surface includes documentation, API reference, getting-started guide, authentication, support, signup flow, and 14 more developer resources.

🌐 Visit website 📡 Source on GitHub
41.6/100 thin Agent 27/100 agent aware Full breakdown ↓
scored 2026-07-20 · rubric v0.4
1 APIs 1 MCP Servers 0 Features
CompanyFintechAlternative InvestmentsPrivate MarketsWealth ManagementInvestment ManagementFinancial ServicesData Aggregation

API Rating

API Evangelist API Evangelist Rating How this is scored →
scored 2026-07-20 · rubric v0.4
Composite quality — 41.6/100 · thin
Contract Quality 9.4 / 25
Developer Ergonomics 10.0 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 3.4 / 13
Governance 0.0 / 12
Discoverability 8.8 / 10
Agent readiness — 27/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/arch-labs: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs

Arch Client API

REST API over HTTPS for Arch's alternative-investment administration platform. Provides read/write access to holdings, investing entities, issuing entities, offerings, activitie...

MCP Servers

arch-labs-mcp.yml

MCP SERVER

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance

Access & Security 6

Authentication, authorization, and security posture

Authentication
Authentication
 Security
Security
 VulnerabilityDisclosure
VulnerabilityDisclosure
 TrustCenter
TrustCenter
 Compliance
Compliance
 DomainSecurity
DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support
Support
 StatusPage
StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 3

The organization behind the API

Website
Website
 LinkedIn
LinkedIn
 Twitter
Twitter

Source (apis.yml)

apis.yml Raw ↑ 
aid: arch-labs
name: Arch Labs
description: 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.
url: https://raw.githubusercontent.com/api-evangelist/arch-labs/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- craft-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Fintech
- Alternative Investments
- Private Markets
- Wealth Management
- Investment Management
- Financial Services
- Data Aggregation
apis:
- name: Arch Client API
  description: REST API over HTTPS for Arch's alternative-investment administration platform. Provides read/write access to
    holdings, investing entities, issuing entities, offerings, activities, cash flows, tasks, tax documents, firms, lookthroughs,
    user roles and Addepar exports. Authenticated with a JWT bearer token obtained from client credentials; responses paginate
    as "Pages" and rate limits are signalled with IETF RateLimit-* response headers.
  humanURL: https://arch.co/client-api/api-docs/
  baseURL: https://arch.co/client-api/v0
  tags:
  - Alternative Investments
  - Private Markets
  - Fintech
  properties:
  - type: OpenAPI
    url: openapi/arch-labs-client-api-openapi.json
  - type: Documentation
    url: https://arch.co/client-api/api-docs/
  - type: APIReference
    url: https://arch.co/client-api/api-docs/
  - type: Authentication
    url: authentication/arch-labs-authentication.yml
  - type: Overlay
    url: overlays/arch-labs-client-api-overlay.yaml
  - type: ErrorCatalog
    url: errors/arch-labs-problem-types.yml
  - type: Conventions
    url: conventions/arch-labs-conventions.yml
  - type: DataModel
    url: data-model/arch-labs-data-model.yml
  - type: Lifecycle
    url: lifecycle/arch-labs-lifecycle.yml
  - type: RateLimits
    url: conventions/arch-labs-conventions.yml
  - type: MCPServer
    url: mcp/arch-labs-mcp.yml
  - type: AgentSkill
    url: skills/_index.yml
  - type: LLMsTxt
    url: llms/arch-labs-llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://arch.co
- type: DeveloperPortal
  url: https://arch.co/client-api/api-docs/
- type: Documentation
  url: https://arch.co/client-api/api-docs/
- type: APIReference
  url: https://arch.co/client-api/api-docs/
- type: GettingStarted
  url: https://arch.co/client-api/api-docs/
- type: Authentication
  url: authentication/arch-labs-authentication.yml
- type: Support
  url: https://arch.co/contact.html
- type: SignUp
  url: https://arch.co/portal
- type: Login
  url: https://arch.co/portal
- type: TermsOfService
  url: https://arch.co/legal.html
- type: PrivacyPolicy
  url: https://arch.co/legal.html#privacy-policy
- type: StatusPage
  url: https://arch-group.gitlab.io/status-page/
- type: Security
  url: https://arch.co/vulnerabilitydisclosure.html
- type: VulnerabilityDisclosure
  url: security/arch-labs-vulnerability-disclosure.yml
- type: TrustCenter
  url: https://trust.arch.co/
- type: Compliance
  url: https://arch.co/security.html
- type: DomainSecurity
  url: security/arch-labs-domain-security.yml
- type: Conformance
  url: conformance/arch-labs-conformance.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/archsoftware/
- type: Twitter
  url: https://twitter.com/gotk1s
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence