• Blog
  • Docs
  • Pricing
  • We’re hiring!
Log inSign up
charmaine

charmaine

openHeartProtocol

The Open Heart protocol lets users send emojis to a URL
Public
Like
openHeartProtocol
Home
Code
4
GET.tsx
POST.tsx
README.md
H
main.tsx
Branches
1
Pull requests
Remixes
History
Environment variables
Val Town is a collaborative website to build and scale JavaScript apps.
Deploy APIs, crons, & store data – all from the browser, and deployed in milliseconds.
Sign up now
Code
/
README.md
Code
/
README.md
Search
6/6/2025
Viewing readonly version of main branch: v75
View latest version
README.md

Open Heart Protocol

The Open Heart protocol lets an anonymous user sends an emoji reaction to a URL.

Adapted from https://openheart.fyi/, to run on Val Town.

https://openheart.val.run/

Test with example.com as <domain>.

GET /<domain>/<uid> to look up reactions for <uid> under <domain>
GET /<domain> to look up reactions for everything under <domain>

POST /<domain>/<uid> to send an emoji

<uid> must not contain a forward slash.
<domain> owner has the right to remove data under its domain scope.

You can test sending emojis with POST.tsx, and check emojis received with GET.tsx.

FeaturesVersion controlCode intelligenceCLIMCP
Use cases
TeamsAI agentsSlackGTM
DocsShowcaseTemplatesNewestTrendingAPI examplesNPM packages
PricingNewsletterBlogAboutCareers
We’re hiring!
Brandhi@val.townStatus
X (Twitter)
Discord community
GitHub discussions
YouTube channel
Bluesky
Open Source Pledge
Terms of usePrivacy policyAbuse contact
© 2026 Val Town, Inc.