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Todoist

Todo Lists

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OAuthHTTPSNo CORSDocuments & Productivity

Verified 4 days ago: 100% uptime

API key

OAuth flow

HTTPS

Supported

Browser calls

No, needs a proxy

Status

Live · 100/100

What our checks found

Health score
100/100
Reliability
100%
Average latency
253ms

Last checked 2026-09-18. Measured independently, not self-reported by the provider.

How to call it

A starting template for Todoist. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.

# Uses OAuth. Exchange your credentials for an access token first.
curl -s "https://developer.todoist.com/ENDPOINT" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -H "Accept: application/json"

This API does not send CORS headers, so a browser will block a direct call from your front end. Call it from your server, or put a small proxy in front of it.

Where this listing comes from

Aggregated from 2 public sources (public-api-lists, public-apis), then normalised and checked by us. If something here is wrong, tell us and we will correct it.

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Todoist — common questions

Answered from what our own scheduled checks found, not from the provider's marketing.

Is Todoist free to use?

Todoist is listed in our free catalogue, but it requires OAuth, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.

Does Todoist need an API key?

Todoist uses OAuth rather than a simple key, so you register an application and complete an authorisation flow before making calls. That is more setup than a key, and it is why OAuth APIs are harder to try quickly.

Can I call Todoist from browser JavaScript?

Not directly. Todoist did not return CORS headers when we checked, so the browser will block your page from reading the response even though the request itself succeeds. Call it from a server, or put a small proxy in front of it.

Is Todoist still working?

Yes, as of 2026-09-18. Our automated check reached Todoist and recorded a 100% reliability score with a median response time of 253 ms. We re-check on a schedule, and this page updates with the result.

Is Todoist available over HTTPS?

Yes. Todoist serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.