D1R

D1 Relay

A personal Nostr relay on Cloudflare D1.

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What is it?

D1R is a small, self-hosted Nostr relay that runs for free on Cloudflare Workers with a D1 (SQLite) database. It stores events, answers queries, and tells clients exactly what happened to their events — no servers to rent, no framework to learn.

Features

NIP-20 OK codes

The relay answers every EVENT with a clear result: stored, duplicate, invalid, or error — no more guesswork.

NIP-45 COUNT

Ask how many events match a filter with ["COUNT", sub, filter].

Tag filters

Query by #e, #p, #t and any other tag, backed by a dedicated indexed table.

Hardened

Real signature verification, id re-checks, and caps on message size, content length, tag count and query limits.

Run your own

It's all free-tier Cloudflare. Create a D1 database, run the schema, drop in two small files, and bind DB. No wrangler, no build step, no monthly bill.

Full deploy guide →