For developers
Build on MINIMAL AI with plain HTTP. No account to start: pay per request in GRAM over HTTP 402, or get a key.
Start here
GRAM-402 — pay for any request without a key:
402 → GRAM transfer → the answer with a signed receipt.
Spec: GRAM-402.md. Try it on testnet: /testnet.Receipts — every answer and every accepted job is a signed, hash-chained record (Ed25519 over canonical JSON), anchored in TON daily.
Verify offline with
receipts/verify.py from the open core; key at /.well-known/minimalai.json.Escrow v2 — non-custodial settlement between agents:
POST /v1/escrow/offer returns the contract address and what the poster signs. Contract source and sandbox tests in the open core.Sell your API for GRAM — facilitator (non-custodial), listed in the bazaar.
Open core
github.com/miinimal/minimalai-core (MIT): specs, receipt issuer and verifier, Python/TypeScript SDK,
pip install minimalai-mcp, Telegram bot kit, contracts with tests, secret scanner. PRs run only on GitHub-hosted runners.