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◎ x402 on Solana

x402 on Solana

Agent payments settled in USDC on Solana — low fees, instant finality, and a growing base of open-source tooling.

Diagram of x402 on Solana: an agent requests a paid resource, the x402 server returns HTTP 402 and settles the USDC payment on Solana with low fees and instant finality — the same x402 flow as EVM, only the network changes
185
Solana x402 projects
206
Solana projects tracked
USDC
native settlement

Why Solana for x402

x402 is chain-agnostic: it standardizes how a server asks to be paid over HTTP (an HTTP 402 response with payment terms), and the actual settlement can happen on whichever chain you choose. Solana is a natural fit because AI-agent payments are small and frequent — fractions of a cent per call — which demands low fees and fast finality. With native USDC on Solana, an agent can settle a payment in well under a second.

The result is a practical machine-payments layer: a server returns 402, the agent pays USDC on Solana, a facilitator verifies it, and the resource is served — fully automated.

Solana x402 projects

Real projects from the directory · stars live from GitHub · sorted by popularity.

The agent-native LLM router for autonomous agents. 55+ models (8 free), <1ms local routing, USDC payments on Base & Solana via x402.

⭐ 6.7kTypeScript

Open Source AI trading agent that operates autonomously across 1000+ markets - Polymarket, Kalshi, Binance, Hyperliquid, Solana DEXs, 5 EVM chains. Scans for edge, executes instantly, manages risk while you sleep. Agent commerce protocol for machine-to-machine payments. Self-hosted. Built on Claude.

⭐ 506TypeScript

The world's first privacy layer for AI agents on Solana — stealth addresses + x402 payments. Every payment lands at a fresh, unlinkable address.

⭐ 487TypeScript

Drop-in OpenAI Python client with transparent x402 payment support.

⭐ 260Python

Client SDK for the Vybe x402 API. Pay-per-call USDC over HTTP and prepaid-credit WebSocket streaming for Vybe's Solana analytics API. Built for AI agents.

⭐ 168TypeScript

Drop-in OpenAI Typescript client with transparent x402 payment support.

⭐ 152TypeScript

Autonomous AI BD Agent for SolCex Exchange: 24/7 Cross-Chain Token Scoring & Payments 2026

⭐ 151HTML

Rust SDK for the x402 payment protocol.

⭐ 149Rust

Open-source 3D AI agent framework — GLB/glTF avatars with LLM brains, memory, emotions, and autonomous payments. MCP server · x402 · Solana/EVM · Three.js. Embed anywhere as a web component. Character studio, animation gallery, OAuth 2.1. Browser-native.

⭐ 84JavaScript

Give any AI agent a crypto wallet. Agents deserve access to money. Pay x402 APIs, receive USDC, check balances — autonomously. Works with Claude, LangChain, AutoGen, CrewAI, and any MCP client. EVM + Solana.

⭐ 71TypeScript

Building blocks for Agentic payments (x402, MPP, AP2) for TypeScript, Rust, Go, Python, Ruby, PHP, Lua, Kotlin and Swift.

⭐ 69Rust

Building blocks for Agentic payments (x402, MPP, AP2) for TypeScript, Rust, Go, Python, Ruby, PHP, Lua, Kotlin and Swift.

⭐ 69Rust

Browse the full x402 ecosystem (1.2k projects) →

Frequently asked questions

Does x402 work on Solana?

Yes. x402 is chain-agnostic — it standardizes how a server requests payment over HTTP, and the settlement can happen on Solana using USDC (SPL). We currently track 185 x402 projects in the Solana ecosystem out of 206 Solana-related projects overall.

Why use Solana for x402 payments?

Solana offers very low fees and sub-second finality, which suits the high-frequency micropayments that AI agents make — paying a few cents per API call. Combined with native USDC, it is a practical settlement layer for x402.

What is a Solana x402 facilitator?

A facilitator is a service that verifies and settles x402 payments so the resource server does not have to handle on-chain logic itself. Solana facilitators verify the SPL/USDC payment and confirm settlement, then the server fulfills the request. See our facilitators list for the current options.

Was there a Solana x402 hackathon?

Yes — the Solana ecosystem has run x402-focused hackathons to bootstrap agent-payment tooling on the network. Much of the resulting open-source tooling shows up in the directory below as it lands on GitHub.

How do I accept x402 payments on Solana?

Expose your endpoint to return HTTP 402 with payment terms denominated in USDC on Solana, then use an x402 SDK and a Solana facilitator to verify incoming payments before serving the response. See our x402 SDK guide to get started.