A Model Context Protocol (MCP) server for YARA scanning, providing LLMs with capabilities to analyze files with YARA rules.
Most developer tooling work still happens through a UI a human drives. YaraFlux MCP server moves it into the conversation instead. A Model Context Protocol (MCP) server for YARA scanning, providing LLMs with capabilities to analyze files with YARA rules.
The server publishes 14 tools. What each one is for:
list_yara_rules — List available YARA rules with filtering optionsget_yara_rule — Get a specific YARA rule's content and metadatavalidate_yara_rule — Validate YARA rule syntax with detailed error reportingadd_yara_rule — Create a new YARA ruleupdate_yara_rule — Update an existing YARA ruledelete_yara_rule — Delete a YARA ruleimport_threatflux_rules — Import rules from ThreatFlux GitHub repositoryscan_url — Scan content from a URL with specified YARA rulesscan_data — Scan provided data (base64 encoded) with specified rulesget_scan_result — Retrieve detailed results from a previous scanupload_file — Upload a file for analysis or scanningget_file_info — Get metadata about an uploaded fileSetup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client.
Configuration is passed through the environment: JWT_SECRET_KEY. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
This sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. YaraFlux's toolset — list_yara_rules, get_yara_rule, validate_yara_rule and 11 more — is a fair guide to whether it matches your workflow. It is maintained by ThreatFlux; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| list_yara_rules | List available YARA rules with filtering options |
| get_yara_rule | Get a specific YARA rule's content and metadata |
| validate_yara_rule | Validate YARA rule syntax with detailed error reporting |
| add_yara_rule | Create a new YARA rule |
| update_yara_rule | Update an existing YARA rule |
| delete_yara_rule | Delete a YARA rule |
| import_threatflux_rules | Import rules from ThreatFlux GitHub repository |
| scan_url | Scan content from a URL with specified YARA rules |
| scan_data | Scan provided data (base64 encoded) with specified rules |
| get_scan_result | Retrieve detailed results from a previous scan |
| upload_file | Upload a file for analysis or scanning |
| get_file_info | Get metadata about an uploaded file |
| list_files | List uploaded files with pagination and sorting |
| delete_file | Delete an uploaded file |
| Variable | Description | Required |
|---|---|---|
| JWT_SECRET_KEY | Credential the server authenticates with. | Yes |
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