SDK for the Siglume Direct Request Payment SDRP payment protocol
Official Circle SDK for seamless cross-chain USDC bridging
Circle's official Cross-Chain Transfer Protocol v2 provider for native USDC bridging
Unified agent-economy SDK for autonomous AI agents — chain-opaque AiFinPayAgent surface (call/openSession/balance/verify) over Polygon and Solana execution environments.
EVM blockchain adapter powered by Viem v2
TypeScript SDK for Zero — search, fetch, and pay for AI capabilities (x402 + MPP).
Puls CLI — a full terminal trading desk for the Puls prediction market on Arc: buy / sell / claim predictions, live markets + candlestick charts, the AI agent swarm, AI oracle, x402 signal unlocks, bring-your-own-agent, and a full-screen TUI.
MCP server for Q402 — gasless USDC/USDT/RLUSD/Q payments on 11 EVM chains + Chainlink CCIP USDC bridge on the eth/avax/arbitrum triangle, callable from Claude (Desktop / Code), OpenAI Codex CLI, and any other Model Context Protocol client.
Accept x402 crypto payments across 29 chains — every major EVM chain plus Solana, TON, Tron, NEAR, Sui, Aptos, Algorand, Stellar & XRPL — in a couple of lines. No backend, no database, no fee; payments settle straight to your wallet.
Solana blockchain adapter powered by @solana/web3.js
Franklin Agent — The AI agent with a wallet. Spends USDC autonomously to get real work done. Pay per action, no subscriptions.
Stdio MCP server that exposes the StableOps SDK as policy-scoped tools for AI agents.
Smart LLM router — save 85% on inference costs. 55+ models (8 free), one wallet, x402 micropayments.
SDK for cross-chain USDC deposits, spending, and balance queries
Circle's Gateway v1 provider for instant cross-chain USDC transfers with unified balance management
A Circle SDK for single-chain token swaps with minimal code
A one-stop Circle SDK solution for building stablecoin (e.g. USDC) applications, with bridging, swapping, and more on-chain operations
Swap provider for on-chain token swaps via Circle's stablecoin APIs
Open-source MCP server exposing Agent402's 1,308 self-hostable tools + 42 multi-tool skill packs (security-audit, trend-analysis, structured-scrape, decode-blob, forecasting-bake-off) for AI agents — browser, web search & answers, PDFs, OCR, images, live
Browser wallet SDK for StableOps — send on-chain USDC/USDT transfers directly from user wallets.
MCP server exposing x402 Bazaar's paid Base APIs as agent tools — pay per call in USDC on Base, no API keys needed.
Multi-domain real-time anomaly detection MCP server. Mempool (5s polling), stablecoin depeg (1min polling), blockchain, aviation, and GitHub anomalies via x402 micropayments.
EVM blockchain adapter powered by Ethers v6
Discovery and usage layer for agentic commerce — multi-network wallet, x402 payments, 20k+ services via PayAI and other catalogs
Lightweight TypeScript SDK for the Peerlytics v1 API - ZKP2P P2P protocol analytics