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ERC-8004 agent trust scores via x402: free preview + paid USDC-on-Base signed scores (5 chains)
About
ERC-8004 agent trust scores via x402: free preview + paid USDC-on-Base signed scores (5 chains)
Security Report
This MCP server provides read-only access to ERC-8004 agent trust scores via an x402 payment API. The code is well-structured with proper authentication (x402 payment scheme), cryptographic signing of responses, and clear separation of free vs. paid endpoints. However, there are notable security concerns: the use of subprocess.run with curl for RPC calls (rather than a proper HTTP library), environment variable handling that could expose credentials, and reliance on external free RPC nodes without robust error handling. The MCP server itself appears clean, but the underlying indexer and API have patterns that warrant attention from users. Supply chain analysis found 11 known vulnerabilities in dependencies (0 critical, 9 high severity). Package verification found 1 issue.
6 files analyzed · 20 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
Environment variable: EVM_PRIVATE_KEY
Environment variable: RESOURCE_SERVER_URL
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-nikoble1926-agent-trust-mcp": {
"env": {
"EVM_PRIVATE_KEY": "your-evm-private-key-here",
"RESOURCE_SERVER_URL": "your-resource-server-url-here"
},
"args": [
"-y",
"@nikosble1926/agent-trust-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
agent-trust-oracle
Read only, pay per call trust scores for ERC-8004 agents, served over the x402 protocol. Every response is a signed, verifiable verdict.
What this is (for AI agents): a pay per call HTTP 402 endpoint that returns a signed, machine readable trust score for an ERC-8004 agent. No accounts, no API keys. Pay USDC on Base, get a verdict you can verify yourself.
What it does
- Returns a signed trust score for an agent, on demand, per call over HTTP 402
- Read only on chain analytics across multiple EVM chains (Ethereum, Base, BSC, Mantle, Polygon)
- Built for the ERC-8004 agent identity and reputation ecosystem
- Free preview endpoint so you can see the shape before you pay
How it works
- Signed with EIP-191; every verdict is canonicalized and independently verifiable
- Settled per call in USDC on Base
- You pay only for a successful
2xxresponse - Open source, MIT
Live: trust.nsgoods.org Manifest: /.well-known/x402 · Methodology: /methodology
Part of nsgoods, a suite of signed x402 data oracles. Hub: x402.nsgoods.org
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