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Composio API POST /api/v3/tools/execute/proxy endpoint removal

Stopped workingSubscribe to Composio APIShare

On June 4, 2026, the POST /api/v3/tools/execute/proxy endpoint stopped working. Calls made to this route fail because proxy execute is disabled on the v3 API. Developers making requests to this path must switch away from the disabled endpoint to avoid failures.


Calls it hits

  • POST /api/v3/tools/execute/proxy

What to use instead of these calls

Call POST /api/v3.1/tools/execute/proxy or update your SDK.

In Composio API's words

Proxy Execute is disabled on v3 api, please use v3.1 or update your sdks.

Composio API, Announcement

Facts

API
Composio API backend.composio.dev
Kind
Endpoint removal
Announced
June 4, 2026
Takes effect
June 4, 2026
Calls after that day
Fail
Source
Announcement
Last updated
Verified
, against Composio API's own pages

Questions

When does this change take effect?

Calls to POST /api/v3/tools/execute/proxy on Composio API stopped working on June 4, 2026.

What happens to calls after June 4, 2026?

They have failed since June 4, 2026.

How do I find the calls this hits in my code?

Okapi reads your repository, finds the calls this change hits and opens a pull request with the fix. It never commits to your branches: every change comes as a pull request you review.


More from Composio API 3

  1. GET /api/v3/toolkitsParameter removal Stopped working
  2. /api/v1/*Version retirement Stopped working
  3. /api/v2/*Version retirement Stopped working

You fixed this one by hand.

Okapi opens the pull request with the fix before the next breaking change reaches your code.

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