OpenSEO
openseo.gg
Open-source SEO tools
Keyword research, rank tracking, backlinks, site audits and AI visibility in one workspace, with your Search Console data beside them.
Apps built on YepAPI
Open-source apps that run on your own YepAPI key. Use them hosted or run them yourself, and every call is billed to your balance at YepAPI's prices.
$5 free credit. No card required.
The apps
OpenReach
openreach.gg
Open-source lead generation
Finds influencers on YouTube, TikTok and Instagram, local businesses on Google Maps, brand mentions and people asking for what you sell, and keeps them in a workspace with statuses, notes and tags.
From YepAPI
Creator, Google Maps and search data
OpenPromo
openpromo.gg
Open-source promo content
Reads your website into a brand profile, then makes social posts, carousels, banners, reels and promo videos in your fonts, colours and voice.
How they run on YepAPI
All three are open source under the MIT licence, free to self-host with Docker, and come with an MCP server, so AI agents can use them too.
1
Get your API key
Sign up with Google or GitHub, and copy your key from the dashboard. It comes with $5 free credit, no card required.
2
Add it to the app
Paste the key into the app, hosted or on your own server. Each app lets you set a monthly spending limit.
3
Pay per call
The app's calls are billed to your balance at YepAPI's prices, and show up in your usage like any other call. Auto top-up refills the balance before it runs out, so the app doesn't stop.
Building on YepAPI?
Send X-App-Name and X-App-Website with your calls so your app's usage is labelled, then tell us about it at [email protected].
Start building with one key
$5 free credit when you sign up with Google or GitHub. No card required.
Get your API key