Relay is an MCP (Model Context Protocol) server by relayprotocol. Cross-chain bridge and swap quotes, fee estimation, and transaction tracking via Relay Protocol.

How do I connect Relay to Claude, Cursor, or another MCP client?

Install Relay from its npm package (@relayprotocol/relay-mcp) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.

Is Relay open source?

Yes — the source code is public at github.com/relayprotocol/relay-mcp, with 3 GitHub stars.

Can AI agents pay to use Relay?

Not yet through Loomal — Relay is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.

Relay

MCP server by github.com/relayprotocol/relay-mcp

Cross-chain bridge and swap quotes, fee estimation, and transaction tracking via Relay Protocol.

3 starsnpm: @relayprotocol/relay-mcp

About Relay

Relay is an MCP (Model Context Protocol) server published by relayprotocol in the official MCP registry. Cross-chain bridge and swap quotes, fee estimation, and transaction tracking via Relay Protocol.

It ships as an npm package (@relayprotocol/relay-mcp), so any MCP client that can launch a local process can run it.

Development happens in the open at github.com/relayprotocol/relay-mcp, where the project has earned 3 GitHub stars.

Use Relay with your agent

Claude Code · one command

claude mcp add relay-mcp -- npx -y @relayprotocol/relay-mcp

Claude Desktop, Cursor & other MCP clients · config

{
  "mcpServers": {
    "relay-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@relayprotocol/relay-mcp"
      ]
    }
  }
}

npm@relayprotocol/relay-mcp

Frequently asked questions

What is Relay?: Relay is an MCP (Model Context Protocol) server by relayprotocol. Cross-chain bridge and swap quotes, fee estimation, and transaction tracking via Relay Protocol.
How do I connect Relay to Claude, Cursor, or another MCP client?: Install Relay from its npm package (@relayprotocol/relay-mcp) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.
Is Relay open source?: Yes — the source code is public at github.com/relayprotocol/relay-mcp, with 3 GitHub stars.
Can AI agents pay to use Relay?: Not yet through Loomal — Relay is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.

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Listing data from the official MCP registry and GitHub, refreshed periodically. Not affiliated with the maintainer unless claimed. Maintain Relay? Claim this listing free by verifying GitHub ownership, or contact us.