Webhook Signature add-on for Gravity Forms
Add a signature HTTP header to webhook requests to prevent man-in-the-middle and replay attacks.
Consider an alternative
Webhook Signature add-on for Gr… shows warning signs in 2026 — compare the alternatives below before installing. Was last updated 6 years ago, and scores 21/100 on our health check.
- Small user base (<10 active installs)
- Very few reviews so far
- No update in 5 years
- Only tested up to WordPress 5.6 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Webhook Signature add-on fo… stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| forms | >100 |
| gravity | >100 |
| request | >100 |
| verify | >100 |
| webhook | >100 |
About Webhook Signature add-on for Gravity Fo…
From the official readme · v1.0Description
This plugin can sign the webhook events sent by the Gravity Forms WebHooks Add-On to your endpoints by including a signature in each event’s X-Gform-Signature header. This allows you to verify that the events were sent by the Gravity Forms add-on, not by a third party. As of right now, you must verify the signatures by manually using your own solution. However, an example of a Node.js (JavaScript) implementation is linked below.
Before you can verify signatures, you need to retrieve your endpoint’s public key (more information at this question).
This plugin uses the same keys for every form and endpoint, meaning that the same keys will be used for every signature generated.
Verification implementations
- Node.js: See the example on Github.
Installation
- Upload this plugin to your WordPress website
- Activate the plugin through the ‘Plugins’ menu in WordPress
- Navigate to the Settings section
- Click on the button Generate a new public – private key pair, or paste your own in the fields above and save
Frequently asked questions
How can I verify the signature?
Navigate to the plugin settings. Copy the key in the Public Key field to your own application (receiver). Use it to verify the signature.
What format can I use for custom key
Keys that are generated by the plugin have the following format: – Digest algorithm: SHA256 – Private key type: RSA (OPENSSL_KEYTYPE_RSA) – Private key bits: 1024 It is therefore advised that in case you use custom keys, you use a similar format, since no other format than the one above has been tested. You also have to include the BEGIN and END lines, for example: Public Key: -----BEGIN PUBLIC KEY----- XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX…
How can I send feedback or get help with a bug?
I’d love to hear your bug reports, feature suggestions and any other feedback! Please head over to the GitHub issues page to search for existing issues or open a new one. While I’ll try to triage issues reported here on the plugin forum, you’ll get a faster response (and reduce duplication of effort) by keeping everything centralized in the GitHub repository.
For developers
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FAQ
Webhook Signature add-on for Gravit…: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 29, 2026
Is Webhook Signature add-on for Gr… free?
Yes. Webhook Signature add-on for Gr… is free to download and use from the official WordPress.org plugin directory.
Is Webhook Signature add-on for Gr… safe to use in 2026?
Webhook Signature add-on for Gr… shows warning signs in 2026 — compare the alternatives below before installing. Was last updated 6 years ago, and scores 21/100 on our health check.
How many websites use Webhook Signature add-on for Gr…?
Webhook Signature add-on for Gr… is active on <10 WordPress websites and has been downloaded 1,459 times since it launched in February 2021. It was downloaded 67 times in the last 30 days.
Does Webhook Signature add-on for Gr… work with WordPress 7.1?
Webhook Signature add-on for Gr… is officially tested up to WordPress 5.6.21, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
What PHP version does Webhook Signature add-on for Gr… need?
Webhook Signature add-on for Gr… requires PHP 7.0 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was Webhook Signature add-on for Gr… last updated?
The latest version, 1.0, was released on February 17, 2021 (6 years ago).
Who makes Webhook Signature add-on for Gr…?
Webhook Signature add-on for Gr… is developed and maintained by danielboven.
What are the best alternatives to Webhook Signature add-on for Gr…?
The most popular alternatives to Webhook Signature add-on for Gr… are WPForms (5M+ installs), Fluent Forms (700K+ installs) and Forminator Forms (600K+ installs).
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