Arch: API, MCP and document access

Arch is an investor reporting platform from Arch Labs, Inc., used in North America for private equity, venture capital, private credit, real estate, hedge funds and fund of funds. The registry rates investor document access 2 of 5 (partner or client API with some friction): the API is available for investors (LPs), fund administrators and partners, and there is no MCP server.

Vendor: Arch Labs, Inc.Unverified community researchUpdated
Vendor
Arch Labs, Inc. United States
Regions
North America
Asset classes
Private equity, Venture capital, Private credit, Real estate, Hedge funds, Fund of funds, Other
Investor access difficulty
2 / 5 Partner or client API with some friction
Automation policy
Unknown (terms not checked)
Verification
Unverified community research
Last updated

Access channels

Each way to get data out of Arch, as recorded in the registry. "Unknown" means nobody has checked yet, not that the channel is missing.

ChannelStatusAuthDocsNotes
Web portalAvailableNot recordedNot recordedClient portal consolidating statements, capital calls, distributions and K-1s; digest emails of account updates and upcoming capital calls. MFA not published (trust.arch.com).
APIAvailableJWT; OAuth 2.0 client credentialsDocs Style: REST. Audience: investors (LPs), fund administrators and partners. Arch Client API (JSON REST, OpenAPI definitions per resource): Accounts, Activities, Cash Flows, Holdings, Investing Entities, Issuing Entities, Lookthroughs, Offerings, Tasks, Tax Documents, Users, User Roles, Firms, Addepar. Client-credential JWT bearer tokens. Available to Arch clients (family offices, wealth managers, institutional allocators, accounting firms). Docs site is a JS app; content not readable anonymously. Vendor also cites delivery via SFTP drop-offs and flat files (older site copy).
MCP serverNot offeredNot recordedNot recordedNo MCP server found (API Evangelist 2026-07; official registry empty).
SFTPPartner onlyNot recordedNot recordedEarlier arch.co site: 'delivers data to downstream systems via API integrations, SFTP dropoffs, flat files, or Open Data Program' (not on current arch.com page).
WebhooksUnknownNot recordedNot recordedNot recorded
Email notificationsAvailableNot recordedNot recordedDigest email: account updates, upcoming capital calls, document summaries.

How an investor gets documents today

Aggregator, not a GP portal: documented Client API (OpenAPI, JWT client credentials) exposing holdings, cash flows, activities and tax documents to the investor organisation or its delegate, plus SFTP/flat-file delivery; requires paid Arch subscription and docs are not readable anonymously. The research records an investor-side API.

  • Use the API. The API is open to investors (LPs), fund administrators and partners. Ask the vendor for credentials for your organisation and start from the API documentation linked above.
  • SFTP. SFTP delivery is partner only. Ask the GP or administrator whether documents can be pushed to an SFTP server you control.
  • Email notifications. Turn on notifications and route them to a monitored mailbox, so new notices trigger your own processing. See How to automate capital call notices.
  • Manual download. Download documents from the web portal (exports recorded: PDF, CSV, XLSX and JSON).
  • Check the terms. The registry has not reviewed the terms for automated access. Read them before automating anything.

Background: How to automate capital call notices and Partner-only portal access explained.

Capabilities and terms

What Arch exposes to investors, according to the research: documents, capital call notices, distribution notices, capital account statements, NAV, performance data, tax documents (K-1 and similar), fund reports and other.

  • Export formats: PDF, CSV, XLSX, JSON
  • Standards: OpenAPI
  • Terms of service: No terms link recorded
  • Automation policy: Unknown (terms not checked)

OIPP status

Not yet on the open protocol. Arch does not implement the Open Investor Portal Protocol (OIPP), the open API any portal can implement so investors reach every portal through one interface with their own key.

For Arch Labs, Inc.. If anything on this page is wrong or out of date, correct the entry by pull request to the registry or by email. A pull request from a vendor-owned domain marks the entry vendor verified. Implementing OIPP lets investors and their agents fetch documents without scraping, under your own access rules. See the registry badge for how to show your status.

For Arch Labs, Inc.: show your listing

If you operate Arch, you can link to this registry entry from your developer, security or integrations page with the badge below. It links back here, so investors and their operations teams can see how access works.

Arch: Listed on OpenInvestorPortal

<a href="https://openinvestorportal.com/portals/arch/" title="Arch on OpenInvestorPortal"><img src="https://openinvestorportal.com/badge/arch.svg" alt="Arch: Listed on OpenInvestorPortal" width="220" height="28"></a>

This entry is not vendor verified yet. Confirm it with a pull request from an email on your company domain, or with a DNS TXT record. See how the badge and vendor verification work.

Sources and notes

Classification: Arch is an AGGREGATOR / digital admin layer, not a GP-issued LP portal. It pulls 'statements, capital calls, and K-1s from portals and inboxes' on behalf of its clients (700+ customers, 50,000+ funds) and exposes the normalized data via its Client API and integrations (Addepar etc.). Confidence: high on API existence and resource list (API Evangelist index of OpenAPI files, 2026-07; vendor docs URL confirmed live but JS-rendered). Medium on SFTP/flat-file delivery (older vendor copy). Investor-side API: yes for the client organisation (investor or their delegate), gated by a paid subscription; auth is client-credentials JWT.

Sources checked for the assessment:

Questions

Does Arch have an API?

Yes. Arch has a REST API for investors (LPs), fund administrators and partners. Public documentation is linked on this page.

Does Arch have an MCP server?

No. The registry records no MCP server for Arch.

Can investors download documents from Arch programmatically?

The registry rates investor access 2 of 5: partner or client API with some friction. Aggregator, not a GP portal: documented Client API (OpenAPI, JWT client credentials) exposing holdings, cash flows, activities and tax documents to the investor organisation or its delegate, plus SFTP/flat-file delivery; requires paid Arch subscription and docs are not readable anonymously. The research records an investor-side API.

Independent community research. Not affiliated with Arch Labs, Inc.. Facts are unverified community research as of 2026-11-07.

Comparisons

Other investor reporting platforms

Guides

More in the registry