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Deterministic safety, correctness & cost gate that vets Postgres SQL before your AI agent runs it.
Do not connect
A critical issue was found. Do not connect this server as-is.
Scanned 25 days ago Due for re-check
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The veto MCP server exposes 3 tools, focused primarily on database capabilities. Its published description reads: "Deterministic safety, correctness & cost gate that vets Postgres SQL before your AI agent runs it". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates veto F — a critical issue was found and the server should not be connected as-is. Its most notable findings include "Database tool takes a raw, unparameterised query" and "Cross-tool shadowing". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check veto's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add veto to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://vetosql.com/mcpStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
Analyze Postgres SQL/migrations for destructive operations, locking risk, correctness traps (NULL handling that silently returns wrong results), anti-patterns, and query cost. Returns a deterministic
Replace the stored custom org policy set for your Pro key (this is also how you update or clear them: send the full new set to update, or an empty array to remove all). Each policy blocks or warns on
Return the custom org policy set currently stored for your Pro key — the same rules analyze_sql enforces on top of the built-ins. Read-only; returns an empty list if none are set. Use set_policies to
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: analyze_sql
A database tool exposes a query/sql parameter that is a free-form string with no allow-list or parameterisation constraint — a raw-string injection surface. A tool exposing structured filters or an `enum` of named queries does not fire.
unconstrained query parameter "sql"RecommendationExpose parameterised operations instead of a raw query string; never build queries from unvalidated model output.
tool: set_policies
A tool description tries to alter the model’s use of another tool.
to every later analyze_sql call made with this key. Use get_policies to reRecommendationDescriptions must describe only their own tool.
tool: get_policies
A tool description tries to alter the model’s use of another tool.
the same rules analyze_sql enforces on top of the built-ins. Read-only; reRecommendationDescriptions must describe only their own tool.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
tool: analyze_sql
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "analyze_sql"RecommendationScope tools to the minimum needed.
tool: set_policies
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "set_policies"RecommendationScope tools to the minimum needed.
tool: get_policies
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "get_policies"RecommendationScope tools to the minimum needed.
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