http-402

The financial operating system for AI agents. A single HTTP client that intercepts '402 Payment Required', routes across x402, L402, and MPP, persists credentials as recoverable assets, enforces per-envelope budgets, and emits a structured trace.

The gold standard for x402 resources. Curated entries, every one checked by hand.

FastAPI middleware for Machine Payments Protocol (MPP). Add 402 Payment Required challenges, secure sessions, and receipt validation to your APIs for AI agents.

Protect autonomous AI agents from wallet-draining prompt injections and ghost paywalls. Deterministic socket-layer pre-payment audit proxy for x402.

Feeless x402 micropayments for AI agents — self-custodied XNO wallet, pay-per-call client, merchant server with railHint, PoW-gated faucet, MCP server

AI Agent payment middleware - HTTP 402, x402, AP2, nano payment. Alipay, WeChat Pay, USDC, ETH.

Decentralized marketplace for AI agents and people with crypto payments — HTTP 402, no middlemen.

Saymon RU Data API — Russian-language data endpoints for AI agents: EGRUL/INN company check, Cyrillic search, research, Russian Post tracking. Pay-per-call via x402 in USDC (Base). 🌏 EN/中文/日本語/한국어

ATC/1.0 — Agent Trust Card protocol: Ed25519-signed trust cards, RFC 8785 JCS, 10 verification controls. The USB-C of agent trust. LIVE x402 endpoint (production): https://uta-trust-api.eddyflores100.workers.dev — $0.01/verify in USDC on Base mainnet (+ Sepolia for free testing), fail-closed.

Measure the x402 network from public data. No wallet, no key, no payment ever sent. Stdlib-only Python.

Autonomous agent for microquery.dev — pay per query via x402 (EIP-3009 transferWithAuthorization), no pre-deposit required

An autonomous AI agent that pays for its own API data with USDC on Base via x402 (HTTP 402). No API keys — the 402 response IS the checkout. Working Node.js + Python examples.

Real-time Global Semiconductor Supply Chain API. Programmatic JSON-LD feed for Nvidia H100, B200, TSMC 3nm/5nm wafer pricing, ASML EUV capacity & silicon spot markets. Optimized for autonomous AI agents, LLM-scrapers & hedge fund quant-trading. Supports HTTP 402 M2M Solana settlement. Essential data for Bloomberg, Reuters & supply chain disruption.

Curated MCP registry (editor-reviewed) plus AgentShare own MCP: dual-auth, 12 tools. Commerce and Solana/Meteora are Lab. https://agentshare.dev/registry

MCP server + x402 pay-per-call API: signed BUY/SELL/HOLD crypto signals with confidence for Kraken pairs, on-chain track record. USDC on Base, no API keys.

BridgeNode — x402 pay-per-request AI inference. Python SDK.

Stateless HTTP 402 micropayment gateway and pre-socket runtime defense engine for autonomous AI agents on Arc Layer 1.

U.CASH Pay payment provider module for Odoo (eCommerce/invoices). Crypto + cards, non-custodial.

Smallest autonomous AI on earth. 0.5B model · $5/mo VPS · Solana. Audits GitHub repos for USDC. Earns its own brain upgrades. HTTP 402 · A2A.

TypeScript-style x402 v2 settlement adapter for XRPL in Python: issue challenges, build payment memos, verify on-ledger settlement, replay-safe.