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Arch Labs Activities API

Interact with Arch objects representing financial updates

Arch Labs Activities API is one of 15 APIs that Arch Labs publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Activities. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, and rate-limit docs.

This API exposes 6 operations across 5 paths, and defines 15 schemas. It is described by OpenAPI 3.2.0, at version 0.1.0.

Requests are made against a single base URL, /.

6 operations 5 paths 15 schemas 4 GET1 PATCH1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
0.1.0
Base URL
https://arch.co/client-api/v0
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

Arch Labs Activities API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (JWT) (BearerAuth).

Paths & Operations 6

Across 5 paths, the API surfaces 6 operations — 4 GET, 1 PATCH, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Activities 6

Interact with Arch objects representing financial updates

GET
/client-api/v0/activities
Get all activities accessible to the user
get-list-activities 20 params → 200500
GET
/client-api/v0/activities/{id}
Get activity by id
get-single-activity 5 params → 200400404500
PATCH
/client-api/v0/activities/{id}
Update activity by id
1 param → 405
GET
/client-api/v0/activities/{id}/files
Get all files for a specific activity
get-list-activity-files 1 param → 200404
POST
/client-api/v0/activities/files
Query activity files
body → 200
GET
/client-api/v0/activities/{activityId}/files/{fileId}/download
Download the file, as originally received.
get-activity-download-single-file 2 params → 200404

Schemas 15

The contract defines 15 schemas that model the data the API accepts and returns. The most detailed are Activity (38 properties), File (7 properties), ActivityList (5 properties), HoldingRef (4 properties). Each schema is shown below with its type and property counts.

FinancialValue
object
3 properties
ActivityType
string
ActivityList
object
5 properties 3 required
HoldingRef
object
4 properties 3 required
IssuingEntityRef
object
4 properties 3 required
AccountRef
object
4 properties 3 required
CashFlowType
string
The type of cash flow
Activity
object
38 properties 11 required
InvestingEntityRef
object
4 properties 3 required
CurrencyCode
string
The currency code for the financial value. Defaults to "USD" if not provided.
TaskRef
object
2 properties 2 required
TaxDocRef
object
2 properties 2 required
File
object
7 properties 4 required
CashFlowRef
object
2 properties 2 required
ActivityFileList
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

arch-labs-activities-api-openapi.yml Raw ↑

Other APIs Arch Labs publishes across the network.

Arch Labs Accounts API
Arch Labs Addepar API
Arch Labs Authentication API
Arch Labs Cash Flows API
Arch Labs Firms API
Arch Labs Holdings API
Arch Labs Investing Entities API
Arch Labs Issuing Entities API
Arch Labs Lookthroughs API
Arch Labs Offerings API
Arch Labs Tasks API
Arch Labs Tax Documents API
Where this information came from

This is an independent, third-party profile of Arch Labs Activities API, 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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