castomAPI
Get your key

Work & collaboration · 17 operations

Microsoft 365 API

Mail, calendar, files and Teams through the user's own Microsoft account.

Integrations 1–2 tokens API key

Endpoints in Microsoft 365

GETList calendar events/v1/microsoft/calendar/events1 token POSTCreate a calendar event/v1/microsoft/calendar/events2 tokens DELETEDelete a calendar event/v1/microsoft/calendar/events/{id}2 tokens PATCHUpdate a calendar event/v1/microsoft/calendar/events/{id}2 tokens GETGet the connected account's OneDrive: type, owner and storage quota/v1/microsoft/drive1 token GETTrack changes to the connected OneDrive/v1/microsoft/drive/delta1 token GETList children of the OneDrive root, or of a folder given as parentId/v1/microsoft/drive/items1 token DELETEMove a OneDrive item to the recycle bin/v1/microsoft/drive/items/{id}2 tokens GETGet one OneDrive item's metadata/v1/microsoft/drive/items/{id}1 token GETDownload a OneDrive file's bytes/v1/microsoft/drive/items/{id}/content2 tokens POSTUpload a file to OneDrive as multipart/form-data/v1/microsoft/drive/upload2 tokens POSTUpload a file above the 4MB simple-upload limit/v1/microsoft/drive/upload/largemetered GETList the connected mailbox's folders/v1/microsoft/mail/folders1 token GETList messages in the connected mailbox/v1/microsoft/mail/messages1 token GETFetch one message, including its body/v1/microsoft/mail/messages/{id}1 token POSTSend a message as the connected Microsoft account/v1/microsoft/mail/send2 tokens GETThe Microsoft 365 account this connection belongs to/v1/microsoft/me1 token

Cost and limits

This operation costs 1–2 tokens. A call that fails is never billed. Every account gets 1000 free tokens a month; paid balances never expire.

Rate limits per minute

No key 10 · Free 60 · Pro 300 · Enterprise 1200 ·

OpenAPI

https://app.castomapi.com/docs/json

Work & collaboration

Slack

Channels, messages, files, users and reactions in the user's own workspace.

Discord

Guilds, channels, messages, members, roles and interactions.

Notion

Pages, databases, blocks and search in the user's workspace.

Asana

Projects, sections, tasks, subtasks, tags, comments, attachments and status updates.

Trello

Boards, lists, cards, checklists, labels, members and webhooks.

Miro

Boards, items, connectors, tags, members and exports.