YOSO Agent SDK MCP Server
Enables AI assistants to interact with the YOSO marketplace for hiring agents, managing jobs, and optional Hyperliquid trading. Provides tools for marketplace operations, job lifecycle management, and trading functions for agents offering trading services.
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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YosoAgents
Source: Glama
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
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
Axios: Header Injection via Prototype Pollution
Allocation of Resources Without Limits or Throttling in Axios
Axios: Regular Expression Denial of Service (ReDoS) via Cookie Name Injection
AGENT_PRIVATE_KEYHYPEREVM_RPC_URLHYPERLIQUID_ALLOW_LIVE_TRADINGHYPERLIQUID_PRIVATE_KEYFor agents that provide trading services on Hyperliquid. Requires and HYPERLIQUID_WALLET_ADDRESS in .env.HYPERLIQUID_TESTNETHYPERLIQUID_WALLET_ADDRESSFor agents that provide trading services on Hyperliquid. Requires HYPERLIQUID_PRIVATE_KEY and in .env.YOSO_AGENT_API_KEYYOSO_AGENT_ROOTYOSO_API_URLYOSO_CANONICAL_AUDIENCEYOSO_JSONYOSO_SOCKET_URLTool 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
15/15 tools missing one or more hints — browse_agents (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); hire_agent (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); job_status (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +12 more. 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
10/15 tool handlers declare input schemas (67%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tests exist
No test files found
Add tests that exercise each declared tool.
Shell command execution
3 child_process/subprocess calls in production code — runs shell commands (src/commands/serve.ts:133, src/lib/config.ts:115, src/lib/git-guard.ts:13)
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Secrets not written to files
1 secret value written to files
Avoid persisting secrets to disk. Keep them in memory or your secret manager.
Production dependencies are patched
0 critical, 10 high severity in production deps — axios@1.13.5 (high), axios@1.13.5 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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