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.
mcp-name: io.github.CSOAI-ORG/agent-x402-paywall-mcp
HTTP 402 + on-chain settlement — pay-per-call for agents
HTTP 402 + on-chain settlement — pay-per-call for agents
# 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
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This server is part of the MEOK AI Labs ecosystem — 300+ MCP servers for sovereign AI governance.
| Domain | Purpose |
|---|---|
| councilof.ai | EU AI Act compliance marketplace |
| safetyof.ai | AI safety & monitoring |
| meok.ai | Sovereign AI platform |
| cobolbridge.ai | Legacy modernization |
MIT © CSOAI-ORG
Built with 💜 by MEOK AI Labs · UK Companies House 16939677
MIT. By [MEOK AI Labs](https://meok.ai) (CSOAI LTD, UK Companies House 16939677).| Tier | Price | What you get | Stripe |
|---|---|---|---|
| Smoke test | £1 | Signed sample MCP-Hardening report + Article 50 PDF | https://buy.stripe.com/5kQ6oJ0xS3ce8sl7ew8k91j |
| Quick Kit | £9 | EU AI Act Article 50 implementation guide (C2PA + EU-Icon) | https://buy.stripe.com/5kQ6oJ0xS3ce8sl7ew8k91j |
| Founder Call | £29 | 30-min 1-on-1 with the founder | https://buy.stripe.com/5kQ6oJ0xS3ce8sl7ew8k91j |
Refundable. UK Stripe — VAT-clean. Builds on the 81-MCP MEOK fleet. Verify any signed report at https://meok.ai/verify.
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).
Once configured, ask your assistant, for example:
list_supported_chains to …"build_402_challenge to …"verify_payment to …"io.github.ericm1018/skillfm-llm-cost-optimizer-openai-anthropic-usage
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csoai-org/agent-prompt-injection-firewall-mcp
io.github.mikerawsonnz/authenticated-multi-llm-agent