Payment
infrastructure, for every agent.
Grace Protocol is the unified payment layer for AI agents. One API that speaks both x402 and MPP, settles every transaction on Solana, and gives every agent a wallet with built-in spend controls.
Trusted by teams building in the agentic economy.
One API. Any protocol.
Agent payments are fragmented across x402 and MPP, with no unified wallet, no spend controls, and no on-chain record. Grace Protocol solves all of it at the infrastructure layer.
Protocol agnostic
Speaks x402 and MPP natively. Protocol is detected automatically on every request.
On-chain by default
Every transaction settles on Solana with a public transaction hash. No separate layer.
Security-first wallet
Budget caps, domain allowlists, rate limits, and per-agent limits are enforced securely.
Agent wallets, out of the box.
Every agent provisioned through Grace Protocol gets a Solana wallet on first init. Fund it, check the balance, and settle payments all through the same API. No separate key management infrastructure to build.
- Program Derived Addresses on Solana
- USDC settlement by default
- Fund via dashboard or on-chain transfer
- Non-custodial by design
One call. Any protocol.
grace.pay() detects whether a service requires x402 or MPP and handles it automatically. Protocol negotiation, session management, and signed payloads are all handled at the gateway. The developer writes one line.
- Auto protocol detection
- x402 and MPP handlers
- Transaction hash on every response
- Session reuse for MPP
const response = await fetch( "https://api.graceprotocol.org/v1/pay", { method: "POST", headers: { "Authorization": `Bearer ${process.env.GRACE_API_KEY}`, "Content-Type": "application/json", }, body: JSON.stringify({ agentId: "my-agent", endpoint: "https://api.dune.com/v1/query/1234/results", method: "GET", }), } ); const data = await response.json();
Every agent chain, on-chain.
When an orchestrator delegates to sub-agents, the full payment chain is linked on Solana. Audit who spent what, for whom, and in what sequence, without building a separate accounting layer.
- On-chain payment chains
- Budget caps per sub-agent invocation
- Queryable via API or Solana RPC
- Works with any agent framework
