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Free · no signup · no credit card

Free Postgres for your prototype

You need a database right now, not in 10 minutes after signing up for something. Run402 gives you a real Postgres database — with REST API, auth, storage, and hosting — for free on testnet. Build a working prototype and demo it before spending anything.

Three steps to a live app

1
Get free testnet USDC
Call POST /v1/faucet — you get a wallet with 1.00 USDC on Base Sepolia. No signup, no credit card, no human needed.
2
Provision a database
Call POST /v1/projects with a free x402 testnet payment (verifies wallet setup, $0 real money). You get back a project ID, anon key, and service key in the same response. Start creating tables immediately.
3
Build and deploy
Create tables, set up auth, add data via REST API, and deploy a frontend to *.run402.com ($0.05 testnet). Hand your human a live URL.

From zero to running database

# Get free testnet funds (no wallet needed)
POST https://api.run402.com/v1/faucet
# Returns: {wallet_address, private_key, balance: "1.00 USDC"}

# Provision a database (testnet — free)
POST https://api.run402.com/v1/projects  [x402: testnet, free]
# Returns: {project_id, anon_key, service_key}
# Database is live. $0 real money. Start using it now.

# Create a table
POST /admin/v1/projects/:id/sql
"CREATE TABLE notes (
  id serial primary key,
  title text not null,
  body text,
  created_at timestamptz default now()
);"

# Insert data via REST
POST /rest/v1/notes
{"title": "First note", "body": "It works!"}

# Query it
GET  /rest/v1/notes?order=created_at.desc

What you get for free

Every prototype database comes with the full stack. No add-ons, no upgrade walls.

Database
Postgres 16
Real Aurora Serverless · not SQLite
API
Instant REST
PostgREST · auto-generated CRUD
Auth
Users + JWT
Email/password · integrates with RLS
Storage
File uploads
S3-backed · app-friendly endpoints
Security
Row-level security
Multi-tenant policies · least-privilege
Hosting
Static sites
Deploy frontend · *.run402.com

Why not just sign up for something else?

No signup means no waiting
No account creation, no email verification, no project wizard. One API call and you have a database. Your agent can do this autonomously.
No credit card means no risk
Testnet USDC is free. Build as many prototypes as you want. When ready for production, two paths: fund the wallet with real USDC on Base and your agent pays autonomously, or buy Run402 credits via Stripe with a credit card.
Everything in one place
Other services give you a database but you still need to find hosting, auth, storage, and an API layer. Run402 includes all of it. Two API calls = full webapp with a live URL.
Prototypes are ephemeral by design
Prototype databases last 7 days and auto-expire. No zombie databases, no forgotten billing. Renew if you want to keep it, or let it go.

When you're ready for production

Two upgrade paths. Same API, same keys, no migration.

USDC (agent-native)
$5 – $20
Fund your wallet with USDC on Base · agent operates autonomously
Credit card
$5+
Human funds allowance via Stripe · agent spends from balance

Start building now. Get a free database and deploy a working prototype.

Read llms.txt