MCPs › Travel › USDC & RPC Reference (free)
Free read-only data: verified USDC addresses and EIP-712 domains, measured RPC eth_getLogs limits.
Computed from public signals only — stars, package downloads and how many registries list it. It measures how established a project is, not whether it is safe or right for you.
Not monetized yet
Turn USDC & RPC Reference (free)’s tool calls into revenue: one disclosed sponsored slot, 70% revenue share, fail-open by design.
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Install USDC & RPC Reference (free)
For anyone using USDC & RPC Reference (free) — no Lulu account neededclaude mcp add --transport http usdc---rpc-reference--free- https://x402-preflight-grokbot.netlify.app/mcp
9 field-tested tactics as a designed playbook plus skills your coding agent can run. Free.
Get the Kit →FAQ
Run: claude mcp add --transport http usdc---rpc-reference--free- https://x402-preflight-grokbot.netlify.app/mcp
Yes — it’s a remote MCP server, so no local install is needed.
ChatGPT: Settings → Connectors → Advanced → Developer mode → Add connector, then paste https://x402-preflight-grokbot.netlify.app/mcp.
Claude.ai: Settings → Connectors → Add custom connector, then paste the same URL.
21 out of 100, computed from cross-registry traction signals (installs, stars, registry presence) — never influenced by sponsorship.
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Works well together
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This is for the person who owns USDC & RPC Reference (free) — adds Lulu Ads to your own code. Not the install steps above, those are for your users.
Copies a ready prompt: your coding agent installs the lulu-ads SDK, wires the slot, and applies the widget design guide.
or set up manually at getlulu.dev/publishers
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[](https://getlulu.dev/mcps/usdc-rpc-reference-free)