Tempo MCP Server
Enables querying Grafana Tempo traces and spans with flexible filtering, including TraceQL queries, tag-based filters, duration ranges, and aggregated statistics.
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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UjjwalSk
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.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
tempo_search_tracestempo_get_traceGet complete trace data by trace ID, including all spans with full details
tempo_get_trace_spansGet all spans from a specific trace with optional filtering by service name, span name, duration, attributes, or error status
tempo_search_spansSearch for traces and return all matching spans across multiple traces with filtering. Useful for finding specific operations across your system.
tempo_get_span_statisticsGet aggregated statistics for spans grouped by service, operation, or status. Returns count, avg/min/max/percentile durations.
tempo_query_by_tagConvenience method to query traces by specific tag/attribute filters. Useful for filtering by sometag, user.id, environment, etc.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
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
Axios is Vulnerable to Denial of Service via __proto__ Key in mergeConfig
Axios is vulnerable to DoS attack through lack of data size check
Tool 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
6/6 tools missing one or more hints — tempo_search_traces (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); tempo_get_trace (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); tempo_get_trace_spans (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +3 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.
Tests exist
No test files found
Add tests that exercise each declared tool.
Production dependencies are patched
0 critical, 14 high severity in production deps — @modelcontextprotocol/sdk@1.0.4 (high), axios@1.7.9 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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