What is onchain-mcp?
onchain-mcp is a MCP server by Bankless that interact with smart contracts and query transaction and token information via the Bankless Onchain API. It is listed under Finance & commerce and has 78 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | Bankless |
| Repository | Bankless/onchain-mcp |
| Popularity | 78 GitHub stars |
| Category | Finance & commerce |
| Security | Low risk (80/100) |
| Rank | #681 of 4,418 MCP servers; #38 in Finance & commerce |
| Last commit | 2026-05-05 |
| Runs | Cloud service |
| Language | TypeScript |
Is onchain-mcp safe to install?
onchain-mcp scores 80/100 on the MCPMods security check: Low risk. Things to review: sends your data to a cloud service. It passed 3 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Sends your data to a cloud service | Review |
| Needs an API key or account login | Note |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install onchain-mcp?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/Bankless/onchain-mcp/
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add onchain-mcp -- <command from README> claude mcp add --transport http onchain-mcp <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs onchain-mcp for you:
Add the "onchain-mcp" MCP server from https://github.com/Bankless/onchain-mcp/ to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.