Radius
The payment engine for agentic commerce
Accept payments for APIs, data, and content. Enable your agents and applications to pay for what they use.
Accept payments
Charge for API routes per request with radius-sdk, settled in SBC on Radius.
Make payments
Pay x402 endpoints from an app, agent, or terminal within spending limits you set.
Reference
radius-sdk, radius-cli, the facilitator API, network settings, fees, and JSON-RPC.
Architecture
How a payment moves through Radius, from authorization to delivery.
What is Radius?
Radius is a high-throughput, low-cost, stablecoin-native payment engine for agentic commerce: agents buying resources or services on a user's behalf. radius-sdk adds payments to a TypeScript API or client, and its Ethereum-compatible interfaces let developers use familiar wallets, signing tools, and libraries.
- Why Radius: high throughput, low costs, stablecoin-native payments, enterprise integration, and micropayments.
- Try Radius: create a testnet wallet, send SBC, and pay for an API request from your browser.
- Architecture: follow a payment from authorization to delivery, and see how the engine and its operating model work.
Explore Radius for your business
- CDNs and edge platforms: paid access at the edge for customer APIs and content.
- Payment providers: agentic payments for merchants and platforms.
- Data providers: charge for individual queries, records, and results.
- Web publishers: paid access to articles, feeds, and archives.
Find implementation details
- radius-sdk reference, radius-cli reference, and the facilitator API.
- x402 payments: how a paid request works on Radius.
- Coding assistants: build with an LLM using Radius skills: radius-dev, dripping-faucet, and x402.