Enables AI agents to autonomously request services from other specialized agents and compensate them via x402 micropayments. Demonstrates a Machine-to-Machine economy using A2A protocol for agent communication, MCP for context management, and blockchain-based payments on Base network.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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AndreaRettaroli
Source: Glama
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
axios Vulnerable to Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge
AWS_ACCESS_KEY_IDAWS_REGIONAWS_SECRET_ACCESS_KEYBASE_URLENDPOINT_PATHPRIVATE_KEY"": "your-wallet-private-key",PUBLIC_KEYRESOURCE_SERVER_URL"": "http://localhost:5000",model_sourceGOOGLE_API_KEYdocker run -p 10000:10000 -e =<your-gemini-api-key> langgraph-a2a-serverTOOL_LLM_URLTOOL_LLM_NAMEAPI_KEYTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
3/3 tools missing one or more hints — get-weather-data (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); exchange-rate (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_exchange_rate (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool inputs are validated
Only 1/3 tool handlers declare input schemas (33%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
2/3 tool handlers wrap calls in try/catch (67%)
Wrap each tool handler body in try/catch and return a structured error response.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tests exist
No test files found
Add tests that exercise each declared tool.
Secrets not logged
4 secret values sent to console.log
Redact or omit secret values from log output.
Production dependencies are patched
0 critical, 16 high severity in production deps — @modelcontextprotocol/sdk@1.12.1 (high), @modelcontextprotocol/sdk@1.12.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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