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csoai-org avatar

Agent X402 Paywall Mcp

csoai-org/agent-x402-paywall-mcp

Implements Coinbase's HTTP 402 Payment Required protocol to let AI agents pay for each API call they make, with settlement happening on-chain. Exposes tools to list supported blockchain networks, build 402 payment challenges, and verify payments before granting access to paywalled resources. Reach for this when you're building agent-to-agent or agent-to-service interactions where you want micropayments per request instead of API keys or subscriptions. The stdio transport integrates with Claude Desktop via uvx, while the streamable-http endpoint at api.meok.ai handles remote calls. Useful if you're experimenting with economic protocols for autonomous agents or want to monetize your own MCP servers on a per-call basis.

last updated
Jun 10, 2026
View on GitHubSave

Sponsors

SnugThe clipboard manager you and your agent can use, safelyAgent CaffeineClose your lid, come back to finished workWaxBlock anything with supervision, without erasing your iPhoneOpen StepsSponsoredFree and open-source skills that make AI coding agents easier to understand, verify, and control.

Readme

MCP Scorecard: 90/100

Agent X402 Paywall MCP

mcp-name: io.github.CSOAI-ORG/agent-x402-paywall-mcp

Agent x402 Paywall MCP

MEOK AI Labs EU AI Act License PyPI

HTTP 402 + on-chain settlement โ€” pay-per-call for agents

HTTP 402 + on-chain settlement โ€” pay-per-call for agents


๐Ÿš€ Quick Start

# Install via pip
pip install agent_x402_paywall_mcp

# Or install via Smithery
npx -y @smithery/cli@latest install agent-x402-paywall-mcp --client claude

โœจ Features

  • MCP protocol compliant
  • Easy installation
  • Well-documented API
  • Production-ready
  • Active maintenance

๐Ÿ“– Documentation

  • Full Documentation
  • API Reference
  • EU AI Act Compliance Guide

๐Ÿ›ก๏ธ Compliance

This MCP server is built with EU AI Act compliance built-in:

  • โœ… Article 9 โ€” Risk Management System
  • โœ… Article 13 โ€” Transparency & Instructions for Use
  • โœ… Article 15 โ€” Bias Detection & Testing
  • โœ… Article 26 โ€” FRIA Support (where applicable)
  • โœ… Article 50 โ€” AI Content Watermarking (where applicable)

Need help getting compliant? Book a free 15-min diagnostic โ†’

๐Ÿข Enterprise

Need custom development, SLA guarantees, or white-label deployment?

  • Pro: $99/mo โ€” Full MCP suite + EU AI Act tracking
  • Enterprise: $499/mo โ€” Custom dev + SLA + Dedicated support

View Pricing โ†’ | Contact Sales โ†’

๐Ÿค Part of the MEOK Ecosystem

This server is part of the MEOK AI Labs ecosystem โ€” 300+ MCP servers for sovereign AI governance.

DomainPurpose
councilof.aiEU AI Act compliance marketplace
safetyof.aiAI safety & monitoring
meok.aiSovereign AI platform
cobolbridge.aiLegacy modernization

๐Ÿ“œ License

MIT ยฉ CSOAI-ORG


Built with ๐Ÿ’œ by MEOK AI Labs ยท UK Companies House 16939677

MIT. By [MEOK AI Labs](https://meok.ai) (CSOAI LTD, UK Companies House 16939677).

๐Ÿ’ธ Try MEOK in 30 seconds โ€” instant buy ladder

TierPriceWhat you getStripe
Smoke testยฃ1Signed sample MCP-Hardening report + Article 50 PDFhttps://buy.stripe.com/aFa7sNcgAdQS0ZT1Uc8k91t
Quick Kitยฃ9EU AI Act Article 50 implementation guide (C2PA + EU-Icon)https://buy.stripe.com/aFa7sNcgAdQS0ZT1Uc8k91t
Founder Callยฃ2930-min 1-on-1 with the founderhttps://buy.stripe.com/aFa7sNcgAdQS0ZT1Uc8k91t

Refundable. UK Stripe โ€” VAT-clean. Builds on the 81-MCP MEOK fleet. Verify any signed report at https://meok.ai/verify.

Configuration

Add to your claude_desktop_config.json (Claude Desktop) or your MCP client config:

{
  "mcpServers": {
    "agent-x402-paywall-mcp": {
      "command": "uvx",
      "args": ["agent-x402-paywall-mcp"]
    }
  }
}

Or: pip install agent-x402-paywall-mcp then run the agent-x402-paywall-mcp command (stdio transport).

Examples

Once configured, ask your assistant, for example:

  • "Use list_supported_chains to โ€ฆ"
  • "Use build_402_challenge to โ€ฆ"
  • "Use verify_payment to โ€ฆ"

See also

MEOK compliance MCP fleet: agent-commerce-protocol-mcp, agent-cost-allocator-mcp, agent-identity-trust-mcp, agent-orchestrator-mcp, agent-replay-debugger-mcp

Details

Repository
github.com/csoai-org/agent-x402-paywall-mcp
Categories
AI & LLM Tools, Finance & Commerce
Package
agent-x402-paywall-mcp
Transport
STDIO, HTTP
Registry
MCP registry, active

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