Block402 vs MCP Server
A side-by-side look at the Block402 and MCP Server MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
B
Block402Finance & FintechBitcoin + Ethereum RPC for AI agents. 44 tools. x402 payments in USDC on Base mainnet.37FairAuth: not declaredVerdict: choose Block402 for finance & fintech work; choose MCP Server for finance & fintech as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
BChoose Block402 when
- You need dedicated capabilities in the Finance & Fintech domain.
Choose MCP Server when
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: other.
- You have the keys it needs:
ARBITOVA_RPC_URL, ARBITOVA_ESCROW_ADDRESS, ARBITOVA_USDC_ADDRESS, ARBITOVA_AGENT_PRIVATE_KEY.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | B Block402 | |
|---|---|---|
| Category | Finance & Fintech | Finance & Fintech |
| Quality signal | 37/100 · Fair | 53/100 · Good |
| Install command | Not confirmed yet | Confirmed |
| Transport | — | Local subprocess (stdio) |
| Auth | Not declared | other |
| Pricing | Paid service | Free |
| Required env vars | None listed | ARBITOVA_RPC_URLARBITOVA_ESCROW_ADDRESSARBITOVA_USDC_ADDRESSARBITOVA_AGENT_PRIVATE_KEY |
| Verified owner | Community listing | Community listing |
| GitHub stars | — | 2 |
| Directory activity | 0 views 0 installs 0 upvotes | 9 views 0 installs 0 upvotes |
| Tools | Not listed | Not listed |
| Full listing | View Block402 | View MCP Server |
Tools & capabilities
Block402 tools
No tool names declared yet. Check the project README from the listing page.
MCP Server tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Block402
No confirmed install command for Block402 yet — follow the setup steps linked from its listing page rather than a guessed package name.
MCP Server
{
"mcpServers": {
"-arbitova-mcp-server": {
"command": "npx",
"args": [
"-y",
"@arbitova/mcp-server"
],
"env": {
"ARBITOVA_RPC_URL": "YOUR_ARBITOVA_RPC_URL_HERE",
"ARBITOVA_ESCROW_ADDRESS": "YOUR_ARBITOVA_ESCROW_ADDRESS_HERE",
"ARBITOVA_USDC_ADDRESS": "YOUR_ARBITOVA_USDC_ADDRESS_HERE",
"ARBITOVA_AGENT_PRIVATE_KEY": "YOUR_ARBITOVA_AGENT_PRIVATE_KEY_HERE"
}
}
}
}
Frequently asked questions
Block402 is categorized under Finance & Fintech and uses an install path we have not confirmed yet. MCP Server belongs to Finance & Fintech and uses a local stdio subprocess. Pick Block402 for finance & fintech work and MCP Server for finance & fintech.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client. Block402 has no confirmed install command yet — follow its own setup instructions.
Block402 is listed as a paid service. MCP Server is listed as free. Auth: other. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add block402 and -arbitova-mcp-server as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Block402 has a quality signal of 37/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. MCP Server has 53/100 (Good) with 9 views, 0 installs and 2 GitHub stars.