PRODUCT · ARCHITECTURE
Axuon is four services welded into one control plane: a metering edge, a scope engine, a Solana settlement layer, and a deterministic receipt store. Each of them is hard. Together they're the substrate every agent-native company will eventually run on.
FOUR LAYERS
Each layer is independently scalable, independently auditable, and independently priced. Most teams start at the metering edge and grow inward as their agent fleet does.
A globally-distributed proxy that intercepts every outbound tool call your AI agent makes — HTTP, MCP, A2A, gRPC — and stamps it with a deterministic call ID, a price, and an ed25519 signature (the same curve Solana uses). No SDK retrofit, no protocol hijack.
// outbound from agent.shop-mcp POST /v1/swap x-axuon-call-id: "call_01J9Q2X7Kc" x-axuon-price: $0.0142 USDC x-axuon-wallet: "7Xk9…Ymr" x-axuon-sig: "ed25519:0a3f…" // 612ms later — settled on Solana x-axuon-solana-sig: "5w3K…dQp" x-axuon-slot: 297841022
{
"iss": "axuon.so",
"sub": "agent.shop-mcp",
"wallet": "7Xk9…Ymr",
"scope": {
"verb": "swap",
"merchant": "jupiter.*",
"max_per_call": "$5 USDC",
"max_per_hour": "$60 USDC"
},
"rail": "solana-usdc",
"exp": 1745879310
}Issue capability-bound tokens for each agent leg. A token can permit "swap under $5 USDC via jupiter.* between 9am–5pm UTC, max 12/hour" — and nothing else. Tokens are JWTs you verify offline; revocation propagates globally in under a second.
Axuon settles every tool call as a Solana SPL transfer — USDC, PYUSD, or any Token-2022 mint. Sub-cent fees, ~400ms slot finality, and optional confidential transfers (Token-2022) when an agent's spend has to stay private. Fallback to off-chain rails (ACH, RTP, card) is available for fiat-only counterparties.
┌─ receipt rcpt_01J9Q…2X7 ────────────────┐ │ call_id call_01J9Q2X7Kc │ │ agent agent.shop-mcp │ │ wallet 7Xk9…Ymr │ │ amount $ 0.0142 USDC │ │ solana_sig 5w3K…dQp │ │ slot 297,841,022 │ │ finality confirmed (612ms) │ │ ax_sig ed25519:0x71…4ef │ └─────────────────────────────────────────┘ ↓ counter-signed by callee · queryable forever
Every settled call lands in a Postgres-shaped store keyed to a Solana transaction signature. Replay any call from the call_id. Diff your books against a counterparty in one query. Disputes resolve in seconds, not weeks.
WHO USES IT
Anything that needs to pay, get paid, or settle internally between models — autonomous procurement, agent-to-agent marketplaces, usage-billed MCP tools, in-product credits, model fleet cost-attribution, on-chain DeFi agents.
Shopping agents that close $5–$500 orders without a human. Per-call scopes, per-merchant caps, signed receipts that survive a chargeback.
Bid, pay, fulfil, dispute — entirely between AI agents. Axuon settles in USDC on Solana; your bot reads a single 200 OK.
Charge $0.0003 per tool call without writing a billing system. Receipts are issued in-band, refunds are atomic, accounting maps itself.
Know which feature, which model, which customer cost what. Tag every call, slice your bill any direction. Finance loves you.
Agents that swap on Jupiter, deposit to Drift, or LP on Kamino — under hard scope caps. Treasury keeps the keys, agents get capabilities.
Mint, top-up, expire, and refund prepaid agent-credit balances with one endpoint. Backed by USDC on Solana under the hood.
FIG. BINTEGRATIONS
Axuon ships first-class SDKs for TypeScript, Python, and Rust. Native plug-ins for the agent runtimes and the Solana tooling your team already uses.
The fastest way to see whether Axuon fits is to point a devnet key at it and run your real tool calls. Five minutes. Free.