I've been building a self-hostable outbound API gateway for 8 months

​

Hey r/selfhosted 👋

I launched the first version of this project 8 months ago on Product Hunt and have been iterating since. It's now stable enough to share here properly.

What it does:

Asstgr is an outbound API gateway you can self-host. Instead of hardcoding third-party API integrations (Stripe, OpenWeatherMap, GitHub, whatever) directly into your apps, you register them once in Asstgr and call everything through a single unified endpoint.

```

Your app → Asstgr /execute/ → Any third-party API

│

├─ OAuth 2.0 (auto token refresh)

├─ Per-user quota enforcement

├─ Rate limiting

└─ Audit logs

```

Self-hosting stack:

- Django 5 + Django REST Framework

- PostgreSQL

- Daphne (ASGI)

- Runs fine on a basic VPS

Key features:

- Register any API with its endpoints, parameters, headers and auth config

- OAuth 2.0 support: `client_credentials`, `authorization_code`, `password` flows with automatic token refresh

- API key auth (`sk-...`) with per-key rate limiting (burst + sustained)

- Monthly quota system with configurable credit cost per API

- Response formatting: raw JSON, compact, standard, or verbose human-readable

- Full call logs (user, endpoint, status code, response size)

- Everything configurable via REST API — no UI required

Why I built it:

I was tired of re-implementing the same auth + request logic across projects every time I needed to talk to an external API. Centralizing this in one place means I update credentials once, control costs per user, and have a single audit trail.

Links:

GitHub (Apache 2.0): https://github.com/botyut/asstgr

Hosted version if you want to try without self-hosting: https://www.asstgr.com/home/

First launch 8 months ago: https://www.producthunt.com/products/asstgr

Happy to help anyone get it running locally. Feedback on the architecture is very welcome — still a lot to improve.