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Remote MCP server for parsing FIX protocol messages into UFO, FFE, and sequence formats.
Do not connect
The assessed surface is high-risk. Remediate the findings before connecting.
Scanned 1 month 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 Fixie MCP Server MCP server exposes 7 tools, focused primarily on communication capabilities. Its published description reads: "Remote MCP server for parsing FIX protocol messages into UFO, FFE, and sequence formats". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates Fixie MCP Server D — the assessed surface is high-risk and should be remediated before use. Its most notable findings include "Cross-tool shadowing" 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 Fixie MCP Server's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add Fixie MCP Server to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://www.onikora.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.
Use this tool whenever you see one raw FIX message string, typically starting with 8=FIX. The input may use pipe (|) or SOH separators. By default it returns only the human-readable hierarchical outpu
Use this tool whenever you see multiple raw FIX messages that need to be parsed in order. Each message typically starts with 8=FIX and may use pipe (|) or SOH separators. Returns ordered Onikora UFO,
Returns the recommended Fixie initiator pattern for market_data, order_entry, or quote_request.
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: parse_fix_message
A tool description tries to alter the model’s use of another tool.
RecommendationDescriptions must describe only their own tool.
tool: (server instructions)
A tool description tries to alter the model’s use of another tool.
Use parse_fix_message for one FIX message and parse_fix_messages forRecommendationDescriptions 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: parse_fix_message
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "parse_fix_message"RecommendationScope tools to the minimum needed.
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Returns a JSON runtime configuration template for a Fixie initiator.
Generates generic Java source for a managed or standalone Fixie initiator.
Generates a runtime configuration entry for a Fixie initiator.
Checks whether the initiator request has enough information to generate useful Fixie code.