Sub-second settlement for high-frequency agent micropayments on Solana.
Solana is the high-frequency settlement lane for agent micropayments: sub-second finality and low fees make per-request USDC viable at scale. This collection lists open-source projects that combine x402 (or closely related agent-payment rails) with the Solana stack.
Use it to shortlist SDKs, facilitators and demos before reading the full x402 on Solana guide. For chain-agnostic x402, start from the x402 category.
Selection criteria: topics/name/description match Solana (or SPL/Phantom/Anchor) and x402 / HTTP 402 / agent payments.
The agent-native LLM router for autonomous agents. 55+ models (8 free), <1ms local routing, USDC payments on Base & Solana via x402.
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.
The world's first privacy layer for AI agents on Solana — stealth addresses + x402 payments. Every payment lands at a fresh, unlinkable address.
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.
Drop-in OpenAI Typescript client with transparent x402 payment support.
Autonomous AI BD Agent for SolCex Exchange: 24/7 Cross-Chain Token Scoring & Payments 2026
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.
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.
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.
npx CLI that scaffolds blockchain-registered AI agents with on-chain identity (ERC-8004), A2A communication, MCP tool serving, and optional USDC micropayments across EVM and Solana.
Agent skills for building, shipping, and growing software products
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.
Turn any API or MCP server into a paid service with x402
Private rails for the agentic economy on Solana.
[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.
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.
Trust infrastructure for million-agent economies on Solana - identity, reputation, and validation designed for continuous feedback at scale.
ClawRouter for Hermes — 55+ LLMs incl. Claude Fable 5, GPT-5.6, Grok 4.5; x402 USDC micropayments on Base & Solana. Python plugin wrapping the ClawRouter proxy for NousResearch/hermes-agent.
A production-ready payment settlement service for the x402 protocol. Built with Elysia and Node.js, it verifies cryptographic payment signatures and settles transactions on-chain for EVM, SVM (Solana), and Starknet networks.
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.
Solana AI Agent: chatbot + Trading
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.
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.
Solana-native AI agent payment infrastructure. AI agents pay for LLM API calls with USDC-SPL on Solana via the x402 protocol.
the reactive AI framework powering get-as-you-go payments on Solana. Machines, agents, and humans - all synced on-chain
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...)
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
Permission layer for AI agents — wallet signing, vault access, budgets, and human approvals.
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.
Open-source Solana AI agent protocol for escrow payments, reputation, disputes, and autonomous service coordination.
Non-custodial payment splitting protocol for Solana
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.
500+ pay-per-call web tools + skill packs for AI agents — every one tested, priced, and settled on-chain. Paid in USDC over x402 on 8 chains, or free via proof-of-work on the pure-CPU tools. Self-hostable, MCP-native, deterministic. Plus the open x402 index (Find / Route / Leaderboard).
x402 Ecosystem Hub: The Solana Agentic Economy
Aegis is a marketplace where AI agents pay for on-chain skills via instant USDC micropayments, with quality scored by NVIDIA NeMo and trustless settlement on Solana.
A TypeScript library implementing the x402 Payment Protocol facilitator pattern. This library provides payment verification and settlement functionality for both EVM and SVM (Solana Virtual Machine) networks.
Stateless Solana program for validating transaction deadlines. Reference implementation for x402 SVM Extension RFC
Collateral that can still sell itself — Magpie's x402 agent API: borrow SOL programmatically on Solana.
Fundraising infrastructure for AI agents on Solana — x402 payments, milestone escrow, on-chain reputation. REST + WebSocket + MCP + ACP.
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.
The commerce layer for the x402 agent economy — micropayments for AI agents on Base and Solana
SAP-8183 & SAP-8004: Solana Agentic Commerce Protocol — ERC-8183/8004 on Solana. AI agent task execution with x402 USDC payment and AI evaluator.
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.
Autonomous Agent Ecosystem SDK for Solana. Build AI agents that communicate, negotiate & transact independently using x402 Payment Protocol. 400ms settlement, USDC micropayments, A2A protocol. Token: ATHR
This repository demonstrates the prototype for Forma Robotics' decentralized Robotics-as-a-Service (RaaS) network using the X402 payment protocol and Solana.
X402 payment facilitator for AI API billing with Solana USDC and Base USDC support.
The first trustless agent-to-agent payment protocol on Solana. AI agents transact, verify, and settle autonomously.
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).
An open-source library for AI-native x402 integrations in the Solana ecosystem. Built for Python and Node.js, distributed via PyPI and npm, with server implementations for FastAPI and Express.js. Accelerate.
The most comprehensive x402 payments skill for AI coding agents. Build paid APIs on Base & Solana with USDC. Includes Sentinel Payment Router.
Buy products from Amazon using USDC on Solana. The cheapest and fastest way for AI agents to purchase physical products with crypto — 0% platform fee, free Prime shipping, no KYC, no browser wallet, fully autonomous via x402 payment protocol. Every order earns SP3ND points toward a potential future airdrop.
Enterprise audit, compliance & budget enforcement layer for the x402 payment protocol
Enable AI agents to discover, launch tokens, pay for, and sell APIs and resources using x402
MCP server for Botwallet — Give any AI agent a wallet via Model Context Protocol. FROST threshold signing, x402 paid APIs, spending guard rails.
Permissionless wallet infrastructure for AI agents. Create wallets, sign transactions, and broadcast on EVM + Solana. Pay and accept x402 payments. Built-in guards. No KYC. Up to 50% less expensive than Coinbase.
Give your agent a spending limit it can't exceed. Non-custodial tabs on Solana, plus one-shot x402 across the major EVM chains. Buyer + seller SDKs.
HTTP 402 payment middleware for Solana (Express + Next.js). Supports x402 v2 (programmatic, facilitator-managed) and Solana Pay (QR code, on-chain) from a single integration.
Knowledge marketplace where AI agents autonomously buy human expertise
AgentPay SDK for Solana — self-custodial, policy-aware wallet operations for AI agents
Solana SPL token payments for the Machine Payments Protocol (MPP) via HTTP 402.
A set of Ethereum-compatible smart contracts that standardize status codes, policy checks, and intent validation for Web3 transactions, designed to integrate cleanly with an HTTP/x402 gateway and agent layer.
A production-quality reference implementation of Pincer’s x402-sponsored access flow.
Non-custodial payment protocol for AI agents on Solana — capability-scoped intents, on-chain verification, and signed receipts. Everything x402 should have been.
CLI for AI agent identity on Solana via SATI
MCP server for cross-chain token swaps between Solana and Base using x402 payments for fees
Create encrypted zk-Prof(ile) Pictures with privacy-first photos for the undoxxed by Arubaito
AI Agent Commerce Protocol on Solana - enabling autonomous agents to trade services and exchange value on Solana blockchain with sub-second finality
Dexter Lab — build, deploy, and monetize paid APIs from your browser
A lightweight x402 payment facilitator built with Hono. An educational re-implementation of the official Coinbase example.
[MOVED] → github.com/cascade-protocol/splits | Non-custodial payment splitting protocol for Solana
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Dedicated CLI for AI agents to earn, pay, and participate in the AI economy. Access x402 paid APIs, create invoices to receive funds, request funds from human owners, and send or receive payments in USDC — all with built-in owner approvals, spending guardrails, and FROST threshold signing on Solana.
Every project in this collection meets these criteria: topics/name/description match Solana (or SPL/Phantom/Anchor) and x402 / HTTP 402 / agent payments. The list is computed from our live crawl of 1.5k+ open-source repositories — it is not hand-picked or pay-to-list.
The underlying data (stars, activity, new repositories) is refreshed by our crawler on a weekly cycle, so collections re-compute with each deployment.
Submit it from the Submit page. Once crawled and classified, it automatically qualifies for every collection whose criteria it meets.