Supported Rails
Current rails and ecosystem surfaces referenced by t54 documentation.
T54 products are designed to work across multiple agent payment and settlement environments. The exact availability of a rail can vary by product, environment, partner program, and policy. Rail support should be understood together with risk and underwriting support: a payment may be technically possible before it is acceptable under a Trustline-governed workflow.
For the agent-payment protocols t54 supports — x402, Google AP2, and Mastercard Verifiable Intent — and how X402 Secure and Trustline bind them to real payments, see Compatible Protocols.
Product Rail Matrix
| Surface | Role |
|---|---|
| x402 | Core machine-payment protocol surface for X402 Secure, Claw Credit, and XRPL facilitator work. |
| AP2 | Agent payment mandate model supported by Trustline and X402 Secure integration work. |
| Verifiable Intent | Intent evidence model supported by Trustline and X402 Secure integration work. |
| XRPL | Payment rail and ecosystem focus for RLUSD tooling and the XRPL x402 Facilitator. |
| RLUSD | Stablecoin focus for XRPL and multi-chain agent tooling through RLUSD Skills and RLUSD CLI. |
| Base USDC | Supported in X402 Secure and Claw Credit contexts where configured. |
| Solana USDC | Supported in X402 Secure and Claw Credit contexts where configured. |
| Ethereum RLUSD | Supported by RLUSD CLI for relevant wallet, transfer, DeFi, and metadata workflows. |
Public Links
| Resource | Link |
|---|---|
| XRPL x402 Facilitator | xrpl-x402.t54.ai |
| X402 Secure website | x402secure.com |
| t54 website | t54.ai |
Availability Notes
Rail availability is product- and environment-specific. A Trustline risk decision can support a rail, while the downstream product still depends on facilitator support, wallet support, settlement configuration, and partner policy.
When integrating with t54, confirm the product, rail, asset, network, and enforcement mode for the target environment.