Block Catalog API
Manage product catalog
Block Catalog API is one of 5 APIs that Block publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Catalog. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.
This API exposes 1 operation across 1 path, and defines 2 schemas. It is described by OpenAPI 3.0.3, at version 2026-01-22.
Requests are made against 2 base URLs: https://connect.squareup.com/v2, https://connect.squareupsandbox.com/v2.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 2
Block Catalog API declares
2 security schemes
for authenticating requests.
It accepts HTTP bearer tokens (BearerAuth).
It supports OAuth 2.0 (OAuth2) using the authorizationCode flow, exposing 6 scopes.
By default, every request must be authenticated.
BearerAuth— Personal access token for Square API
Paths & Operations 1
Across 1 path, the API surfaces 1 operation — 1 GET. Each is listed below with its method, path, parameters, and response codes.
Manage product catalog
Schemas 2
The contract defines 2 schemas that model the data the API accepts and returns. The most detailed are CatalogObject (4 properties), ListCatalogResponse (2 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from Block 4
Other APIs Block publishes across the network.
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