How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Quadratic Sheets API

Add, rename, delete, reorder, and recolor sheets.

Quadratic Sheets API is one of 14 APIs that Quadratic publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Sheets. The published artifact set on APIs.io includes an OpenAPI specification and authentication docs.

This API exposes 8 operations across 6 paths, and defines 9 schemas. It is described by OpenAPI 3.2.0, at version 0.26.9.

Requests are made against a single base URL, https://developer-api.quadratichq.com.

8 operations 6 paths 9 schemas 1 DELETE1 GET3 PATCH3 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
0.26.9
Base URL
https://developer-api.quadratichq.com
Authentication
HTTP Bearer
Contact
Quadratic
License
Apache-2.0
Resource Areas
1

Authentication & Security 1

Quadratic Sheets API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (API token (qdx_live_… or qdx_test_…)) (bearer_auth).

  • bearer_auth — API tokens are minted from the Quadratic UI under Team Settings → API Tokens. Send as Authorization: Bearer .

Paths & Operations 8

Across 6 paths, the API surfaces 8 operations — 1 DELETE, 1 GET, 3 PATCH, 3 POST. Each is listed below with its method, path, parameters, and response codes.

Sheets 8

Add, rename, delete, reorder, and recolor sheets.

GET
/v1/files/{file_id}/sheets
Returns info for all sheets, or a single sheet when sheetname is provided. Read-only; dispatches via the worker's /mcp/query route.
listSheets 2 params → 200401502
POST
/v1/files/{file_id}/sheets
Adds a new sheet to the file.
addSheet 1 param body → 200400401502
PATCH
/v1/files/{file_id}/sheets/colors
Recolors one or more sheet tabs in a single call.
colorSheets 1 param body → 200400401502
POST
/v1/files/{file_id}/sheets/duplicate
Duplicates an existing sheet under a new name.
duplicateSheet 1 param body → 200400401502
POST
/v1/files/{file_id}/sheets/move
Reorders sheets within a file.
moveSheet 1 param body → 200400401502
DELETE
/v1/files/{file_id}/sheets/{sheet_name}
Deletes a sheet by name. Files must always have at least one sheet, so the worker will reject deleting the last remaining sheet.
deleteSheet 2 params → 200400401404502
PATCH
/v1/files/{file_id}/sheets/{sheet_name}
Renames a sheet.
renameSheet 2 params body → 200400401404502
PATCH
/v1/files/{file_id}/sheets/{sheet_name}/frozen
Sets the frozen (pinned) rows and columns for a sheet. Frozen rows always start at row 1 and frozen columns always start at column 1.
setFrozenPanes 2 params body → 200400401404502

Schemas 9

The contract defines 9 schemas that model the data the API accepts and returns. The most detailed are ErrorDetail (3 properties), ColorSheetEntry (2 properties), DuplicateSheetRequest (2 properties), MoveSheetRequest (2 properties). Each schema is shown below with its type and property counts.

ErrorDetail
object
3 properties 2 required
ColorSheetsRequest
object
1 property 1 required
DuplicateSheetRequest
object
2 properties 2 required
ColorSheetEntry
object
2 properties 2 required
ErrorBody
object
Canonical error envelope returned by every non-2xx response.
1 property 1 required
AddSheetRequest
object
2 properties 1 required
SetFrozenPanesRequest
object
2 properties 2 required
RenameSheetRequest
object
1 property 1 required
MoveSheetRequest
object
2 properties 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

quadratic-sheets-api-openapi.yml Raw ↑

Other APIs Quadratic publishes across the network.

Quadratic Agent Connections API
Quadratic Auth API
Quadratic Cells API
Quadratic Columns and rows API
Quadratic Conditional formats API
Quadratic Connections API
Quadratic Context, outline, search API
Quadratic Documentation API
Quadratic Files API
Quadratic Health API
Quadratic History API
Quadratic Tables API
Where this information came from

This is an independent, third-party profile of Quadratic Sheets 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.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.