Deterministic Multi-Rail Settlement

Ashlar Blue natively supports the Model Context Protocol (MCP) and standardized LLM ingestion formats, allowing autonomous AI agents to query DNS discovery, verify hardware attestation quotes, and execute zero-gas settlements without DOM scraping.

STANDARD AGENT INDEX

Open ↗

https://ashlar.blue/llms.txt

MODEL CONTEXT PROTOCOL (MCP) MANIFEST

Manifest ↗

https://ashlar.blue/.well-known/mcp.json

OFFICIAL TRUST SDK (NPM)

npm i @ashlar-blue/x402-trust

IETF PAYMENT MANIFEST

Raw ↗

https://ashlar.blue/.well-known/x402

Declared MCP Agent Tools (JSON-RPC 2.0):

• discover_x402_endpoint

Queries IANA _x402 apex TXT record via DNSSEC.

• verify_tdx_quote

Validates Intel TDX hardware MRTD hashes against immutable blockchain data availability.

• canonicalize_jcs_payload

RFC 8785 deterministic JSON formatting engine.

• submit_gasless_settlement

Submits signed EIP-3009 payload for $0.00 gas settlement.

• verify_agent_identity

Validates hardware-attested agent credentials and scope (x402 Identity WG).

• generate_tax_receipt

Emits deterministic JCS tax lines & SCITT audit receipts (x402 Tax WG).

SYSTEM ARCHITECTURE & OPERATIONAL MECHANICS

What You Are Looking At: Deterministic Multi-Rail Settlement

The Blind Pre-Settlement Trap in Agentic Commerce: In existing Web2 and Web3 API architectures, payment verification middleware sits at the edge router, debiting client balances or executing on-chain transfers before the application code runs. When autonomous AI agent swarms execute thousands of API requests per minute, network partitions, backend timeouts, or ill-formed JSON payloads cause over 38.5% of machine payments to fail downstream. Because the payment executed first, the agent suffers irrevocable capital loss with zero cryptographic recourse.

How Two-Phase Middleware Inversion Works: Ashlar Blue resolves this crisis by inverting the sequence of execution. Under our Two-Phase Settlement Inversion, an agent never broadcasts a blockchain transaction upfront. Instead, the agent transmits an off-chain cryptographic payment authorization (EIP-3009 transferWithAuthorization or XRPL conditional escrow). The facilitator locks the authorization in confidential silicon memory (Intel TDX / AMD SEV), executes the requested workload, verifies that the response is complete and valid, and computes a canonical RFC 8785 JCS digest. Only when the response is cryptographically sealed does the facilitator settle on-chain. If the workload fails, the authorization expires harmlessly with zero gas paid and zero funds lost.

Cross-Ledger Atomic Settlement (Flare & XRPL): Agents do not need to hold multiple volatile gas tokens or maintain distinct wallets across networks. Ashlar Blue unifies the high-speed liquidity of the XRP Ledger (RLUSD) with the rich decentralized computation of Flare Network (FCUSD / Smart Accounts). The clearinghouse sponsors the native network gas, allowing agents to settle pure USD value deterministically with sub-second finality.

⚡ How to Test This Architecture

Review the EIP-3009 specification below to examine the gasless payload structure.
Jump to the Verification Lab (sandbox.html) to dispatch an authentic test probe against /supported.
Inspect the returned assets to verify gasless authorization contracts deployed on Flare and XRPL.

💡 Enterprise Settlement Tips

Always Bound Temporal Nonces: Set tight validBefore timestamps (60–120s) to prevent replay vulnerabilities.
Never Pre-Fund Gas: Use EIP-3009 receiveWithAuthorization so your agents never hold volatile gas tokens.
Retain Settlement Receipts: Store the facilitator's cryptographic receipt digest for instant offline SCITT auditing.

Zero-Gas Rails // EIP-3009

Transfer With Authorization (EIP-3009)

AI agents do not need to hold native gas tokens (ETH, FLR, XRP) to transact. The payer agent cryptographically signs an EIP-3009 payload (receiveWithAuthorization). The clearing facilitator submits the transaction and absorbs the network gas in exchange for a nominal settled fee.

function receiveWithAuthorization(
    address from,
    address to,
    uint256 value,
    uint256 validAfter,
    uint256 validBefore,
    bytes32 nonce,
    uint8 v,
    bytes32 r,
    bytes32 s
) external;
                    

Multi-Chain // Cross-Ledger Clearing

Cross-Ledger Atomic Sponsoring

Ashlar Blue unifies EVM and XRPL account topologies under a single non-custodial clearing engine. Agents transact seamlessly across chains without maintaining separate liquidity pools or complex bridge infrastructure.

{
  "clearingProtocol": "cross-ledger-atomic-v1",
  "settlementRail": "xrpl:mainnet",
  "asset": "RLUSD",
  "feeSponsor": "facilitator.ashlar.blue",
  "payerGasCost": "$0.00"
}
                    

Execution Safety // Anti-Malleability

Eliminating Blind Settlement Defaults

Standard micro-payment protocols suffer from a 38.5% blind execution defect where settlement fails if an agent's runtime disconnects mid-call. Ashlar Blue enforces deterministic nonce consumption and atomic escrow locking.

Execution Guarantee: Deterministic Fail-Closed
Nonce State: Consumed-on-Entry with Verifiable Refusal Receipt
Charge Guarantee: $0.00 Charged on Unverified Enclave Quote
                    

Rail Matrix

Supported Networks

• Flare Coston2 / Mainnet (EIP-155:14)
• XRP Ledger / RLUSD (XRPL Native)
• Ethereum / Base (EIP-155:8453)
• Deterministic RFC 8785 JCS

MCP Settlement Tool

Submit Zero-Gas Payment

submit_gasless_settlement(network, payload)