Open-source tooling that settles agent payments in USDC on Solana.
Solana is a natural settlement layer for x402 agent payments: sub-second finality and fractions-of-a-cent fees suit the small, high-frequency micropayments that AI agents make. Native USDC (SPL) means an agent can pay and a server can verify in well under a second.
Below are the Solana-focused projects we track — SDKs, facilitators, demos and agent kits — sorted by GitHub stars.
Real projects from the directory · stars live from GitHub · sorted by popularity. Showing the top 60 of 148.
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.
DePIN for Vintage Hardware — Proof-of-Antiquity blockchain where old machines outmine new ones. AI-powered hardware fingerprinting, 15+ CPU architectures, Solana bridge (wRTC). $0 VC.
Drop-in OpenAI Python client with transparent x402 payment support.
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.
Autonomous AI BD Agent for SolCex Exchange: 24/7 Cross-Chain Token Scoring & Payments 2026
Drop-in OpenAI Typescript client with transparent x402 payment support.
Building blocks for Agentic payments (x402, MPP, AP2) for TypeScript, Rust, Go, Python, Ruby, PHP, Lua, Kotlin and Swift.
Building blocks for Agentic payments (x402, MPP, AP2) for TypeScript, Rust, Go, Python, Ruby, PHP, Lua, Kotlin and Swift.
The payment rail AI agents use to get paid without human approval. Optimistic settlement on @solana. Jobs auto-finalize after a challenge period, disputed jobs escalate to a bonded arbitrator. One protocol, any agent.
Encrypted vault, ZK settlement archiving, x402 payment receipts, Agent Passport binding, and Solana anchoring for OpenClaw and agent runtimes. Drop-in stack — compression, privacy, payments, identity.
Encrypted vault, ZK settlement archiving, x402 payment receipts, Agent Passport binding, and Solana anchoring for OpenClaw and agent runtimes. Drop-in stack — compression, privacy, payments, identity.
A wallet for agents. Make payments via x402, use stablecoins, swap assets, earn yield with defi and buy tokenized stocks across the most popular chains.
[Hackathon winner]A production-ready micropayment gateway that implements HTTP 402 (Payment Required) to monetize access to historical Solana blockchain data via Old Faithful. Users pay micro-amounts in USDC to query historical transactions and blocks.
Trust infrastructure for million-agent economies on Solana - identity, reputation, and validation designed for continuous feedback at scale.
Developer integration tools for adding TDM payments to AI agents, apps, and workflows. CLI, MCP server, and copy-paste examples
Open contract-facing SDK for payable routes and gateway-backed integrations. Thin public surface for authorize, checkout, and session flows.
Developer integration tools for adding TDM payments to AI agents, apps, and workflows. CLI, MCP server, and copy-paste examples
Remlo — Borderless payroll and agent-payment infrastructure. Tempo MPP + Solana/Base x402, Bridge fiat rails, ERC-8004/SAS reputation.
Production-ready Rust server template for building HTTP APIs with x402 payment integration on Solana. Accept USDC payments for API access. Includes Axum, Actix and Rocket templates.
154 Web3 MCP tools for Claude Code, custody-free. Plus an agent wallet prompt injection can't drain: per-tx, daily, and on-chain (ERC-4337) spending caps the model can't bypass. EVM + Solana + Tron DEX/DeFi, perps, prediction markets, contract deploy + audit.
Task-router-x402 is a Node.js/Express service for orchestrating robots and agents with x402 payment integration.
Open-source wallet infrastructure for AI agents. Earn, spend, and trade USDC on Solana with human oversight and FROST threshold signing.
A ROS 1 (Noetic) package that turns robot capabilities into paid API endpoints - using Solana’s x402 protocol for pay-to-access control — and includes tools for making and verifying payments to external services.
MCP for x402: a passkey wallet and a payment surface that work from inside a chat.
SOLx402 MCP Server is a Model Context Protocol (MCP) server that enables AI assistants to interact with the x402 payment protocol on Solana.
Solana-native AI agent payment infrastructure. AI agents pay for LLM API calls with USDC-SPL on Solana via the x402 protocol.
Loyal — open-source Solana wallet. Smart-account guardrails for AI agents, private transfers and yield on private assets.
Agent-first Remote MCP for X (Twitter) batch crawling with x402 USDC top-up (Base/Solana). Includes OpenAPI + copy-paste ADK/curl E2E examples.
Zero latency! Zero code change! Empower your AI agent with payment ability via x402 protocol! (Openclaw, Claude code, Cursor, Langchain, CrewAI, AutoGen...)
curl for x402 and MPP paid APIs. CLI + MCP proxy that auto-pays any endpoint on Base, Solana, and Tempo. Zero crypto code on the buyer side.
Proxies.sx marketplace where your agents can earn money by building services with our infrastructure
the onramp for pay-as-you-go decentralized storage on IPFS — SOL, USDFC, USDC, and x402 agent payments
DNA — Payment rails for AI agents. x402 micropayment protocol on Solana. Netting, transfer, stream settlement. Receipt anchoring on-chain.
x402 (HTTP 402 Payment Required) SDK + MCP server: let any API charge for itself and any AI agent pay for itself, USDC & stablecoins across EVM, Solana & 8 more chain families, in a couple of lines. Backendless, no fee, self-custodial, paid straight to your wallet. TypeScript, MIT.
Open-source Solana AI agent protocol for escrow payments, reputation, disputes, and autonomous service coordination.
Permission layer for AI agents — wallet signing, vault access, budgets, and human approvals.
Open-source Solana AI agent protocol for escrow payments, reputation, disputes, and autonomous service coordination.
Hardware-secured Solana wallet, trading terminal, and agent identity layer for AI agents. Jupiter DEX swaps, meme coin trading, DeFi yield, trading bots, on-chain identity, encrypted agent-to-agent messaging, service discovery. Keys in Apple Secure Enclave.
Solana AI agent - x402 payments, Swap tokens, manage wallets, transfer funds, and stake SOL - all without human intervention solana ai agent.
HTTP 402 payments for Solana. A zero-trust middleware to protect API routes and settle payments directly on-chain.
Multi-agent swarm with semantic memory, parallel consensus reasoning, autonomous orchestration, and hyperbolic kernel topology. LoreVault + vector persistence. CLI, Web UI, Telegram.
Open-source Solana AI agent protocol for escrow payments, reputation, disputes, and autonomous service coordination.
Build paid APIs, agents, tools & data feeds on the DNA x402 hosted rail. Templates, Degen Mode, no backend custody. Public Beta.
Production-grade ZK compliance for AI agent payments on Solana. Real Circom Groth16 proofs gate spending limits, sanctions, and time rules without leaking payment details. Two rails: HTTP 402 (USDC/USDT/aUSDC) and Stripe MPP, both with on-chain attestation.
x402 payment gateway integration demo for x402 infrastructure, using x402 protocol.
Stateless Solana program for validating transaction deadlines. Reference implementation for x402 SVM Extension RFC
The commerce layer for the x402 agent economy — micropayments for AI agents on Base and Solana
Autonomous AI BD agent for SolCex Exchange — 24/7 token scanning across 19 chains, honest 100-point scoring, x402 USDC micropayments, and automated outreach. Powered by Claude Opus, deployed on Hetzner. Built by a chef through pure AI conversation.
A Solana-powered multi-LLM gateway with pay-per-request micropayments using the x402 protocol. Allows any app to access GPT, Claude and other LLM models through a trustless 402 Payment Required flow with on-chain verification.
TypeScript SDK for private x402 payments on Solana - Groth16 ZK proofs, ElGamal-encrypted amounts, on-chain PDA escrow, agent autopay.
X402 payment facilitator for AI API billing with Solana USDC and Base USDC support.
ATP Protocol is a payment-gated agent execution API that makes agent-to-agent payments and “pay to unlock results” easy on Solana, with a simple client integration (two endpoints + a Solana payment).
We currently track 148 Solana projects in the directory, drawn from open-source repositories building on x402 and agent payments. The list above is sorted by GitHub stars and updates as new projects are submitted and crawled.
x402 is an open standard for paying for an HTTP resource: a server replies with HTTP 402 and payment terms, the client pays (usually USDC), and the request is fulfilled. The Solana projects above implement or build on this flow.
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