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Arch Cash Flows API

Read and write data relating to money inflow / outflow

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

Tagged areas include Cash Flows. 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 3 operations across 2 paths, and defines 9 schemas. It is described by OpenAPI 3.2.0, at version 0.1.0.

Requests are made against a single base URL, /.

3 operations 2 paths 9 schemas 2 GET1 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 Cash Flows API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (JWT) (BearerAuth).

Paths & Operations 3

Across 2 paths, the API surfaces 3 operations — 2 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Cash Flows 3

Read and write data relating to money inflow / outflow

GET
/client-api/v0/cash-flows
Get data for a set of cash flows available to the user
15 params → 200500
POST
/client-api/v0/cash-flows
Add a new cash flow to Arch. Assumes USD.
body → 201403500
GET
/client-api/v0/cash-flows/{id}
Get a specific cash flow by ID.
2 params → 200400404500

Schemas 9

The contract defines 9 schemas that model the data the API accepts and returns. The most detailed are CashFlow (17 properties), NewCashFlow (7 properties), CashFlowAllocation (5 properties), CashFlowFinancialValue (5 properties). Each schema is shown below with its type and property counts.

CashFlowAllocation
object
5 properties 4 required
CurrencyCode
string
The currency code for the financial value. Defaults to "USD" if not provided.
CashFlowFinancialValue
object
5 properties
CashFlowList
object
5 properties 3 required
CashFlowType
string
The type of cash flow
CashFlow
object
17 properties 9 required
FinancialValueUnitType
string
Indicates the denomination or category of financial instrument being returned. Possible values include CURRENCY, STOCK, and CRYPTO
NewCashFlow
object
7 properties 4 required
NewFinancialValue
object
A financial value in USD. Currently only USD is supported. Most values can be negative, except totalContribution which must be non-negative.
1 property 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

arch-cash-flows-api-openapi.yml Raw ↑

Other APIs Arch publishes across the network.

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

This is an independent, third-party profile of Arch Cash Flows 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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