DevPass
A flat monthly plan that buys three times its price in model usage
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Hardcount
Meter tokens per model, sell prepaid credit and invoice from your own Postgres
If you charge per token and want the ledger in your own database, this handles pricing, credit drawdown and invoices while Stripe only charges the card.
Hardcount is an MIT-licensed billing server for products that charge per token or per API call. You set prices per model and token type, sell credit that usage draws down, and see margin per customer. It writes the invoices and PDFs; Stripe charges the saved card. It is one Go program with PostgreSQL and Redis, started from a Compose script. Usage arrives over a REST API with idempotency keys or from a LiteLLM proxy. Pre-1.0, one maintainer, cards through Stripe only, no SDKs, and by its own account no production users yet.
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