Is Tenderly Dev Toolkit safe?

Clean risk

Tenderly Dev Toolkit sends URL-detected Ethereum transaction hashes to Tenderly's public transaction API.

The extension runs a content script on all websites and watches the current page URL for Ethereum transaction hashes. When it finds a hash on a non-Tenderly, non-local URL and cannot map the site to a known block explorer, it requests transaction details from api.tenderly.co so it can render Tenderly dashboard links.

Tenderlyv0.1.7Chrome Web Store
1Risk
Who publishes it

Tenderly - 1 other listing from the same operator, none carrying a finding

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Tenderly
Declared legal entity
Tenderly
Registered address
1209 N Orange St, Wilmington, DE 19801-1120, US
Registered contact
Tenderly Technologies Inc.

Same operator - 1 listing

Published under a different store account, but sharing the registered address, contact or declared legal entity this one gave the store.

Shared hosts - 2 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

app.blocksec.com
Also called by 1 other listing: MetaSuites - Builders' Swiss Army Knife
api.tenderly.co
Also called by 5 other listings, including Revoke.cash - web3 scam protection

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 0.1.7. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on every site you visit

    <all_urls>

Where it sends data

Destinations our analysis observed Tenderly Dev Toolkit contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • api.tenderly.co

    Tenderly Dev Toolkit sends data to api.tenderly.co. No other extension we have analysed sends data here.

Updated 30 September 2026miiolgcpknpjjfagkaddfgakbdenenfn