{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"smithery_ami3466-mcp-n8n-workflow-builder-flowengine","slug":"ami3466-mcp-n8n-workflow-builder-flowengine","name":"mcp-n8n-workflow-builder-flowengine","type":"mcp","url":"https://smithery.ai/servers/Ami3466/mcp-n8n-workflow-builder-flowengine","page_url":"https://unfragile.ai/ami3466-mcp-n8n-workflow-builder-flowengine","categories":["mcp-servers","automation"],"tags":["mcp","model-context-protocol","smithery:Ami3466/mcp-n8n-workflow-builder-flowengine"],"pricing":{"model":"open_source","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"smithery_ami3466-mcp-n8n-workflow-builder-flowengine__cap_0","uri":"capability://tool.use.integration.n8n.workflow.schema.introspection.and.node.discovery","name":"n8n workflow schema introspection and node discovery","description":"Exposes n8n's internal workflow node registry and schema definitions through MCP tools, allowing clients to query available node types, their input/output schemas, and configuration parameters without direct n8n API calls. Uses n8n's node loader to dynamically discover registered nodes and extract their JSON schema definitions for type-safe workflow construction.","intents":["Query what workflow nodes are available in my n8n instance","Get the input/output schema for a specific node type to understand required fields","Programmatically discover node parameters and their validation rules","Build a workflow builder UI that knows all available node types and their constraints"],"best_for":["LLM agents building n8n workflows programmatically","Low-code platform developers integrating n8n as a backend engine","Teams building custom workflow builder UIs on top of n8n"],"limitations":["Schema introspection reflects only nodes installed in the connected n8n instance — custom nodes must be pre-registered","Does not provide runtime state or execution history of workflows, only static schema definitions","Requires n8n instance to be running and accessible — no offline schema caching"],"requires":["n8n instance 1.0+ with accessible node registry","MCP client with tool-calling support","Network connectivity to n8n instance"],"input_types":["node type name (string)","optional filter criteria (JSON)"],"output_types":["JSON schema definitions","node metadata (name, description, icon, category)","input/output port definitions"],"categories":["tool-use-integration","schema-discovery"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_ami3466-mcp-n8n-workflow-builder-flowengine__cap_1","uri":"capability://code.generation.editing.workflow.definition.generation.from.natural.language.specifications","name":"workflow definition generation from natural language specifications","description":"Accepts natural language workflow descriptions and generates valid n8n workflow JSON definitions by mapping user intent to appropriate node types, connections, and configurations. Uses LLM-driven code generation with schema validation against discovered node definitions to ensure generated workflows are executable without manual correction.","intents":["Describe a workflow in plain English and get a working n8n workflow definition","Have an AI agent generate multi-step workflows that chain together n8n nodes","Convert business process descriptions into executable automation workflows","Rapidly prototype workflow logic without manual JSON editing"],"best_for":["Non-technical users describing workflows to AI assistants","LLM agents tasked with creating n8n workflows from requirements","Rapid prototyping and workflow iteration in low-code environments"],"limitations":["Generation quality depends on LLM understanding of available nodes — complex or domain-specific nodes may be misused","No automatic optimization of generated workflows — may create inefficient node chains or redundant operations","Requires manual review and testing before deploying generated workflows to production","Cannot generate workflows for custom nodes unless their schemas are explicitly provided to the LLM"],"requires":["n8n instance with node registry accessible","LLM with function-calling or tool-use capability","Natural language description of desired workflow"],"input_types":["natural language text (workflow description)","optional constraints (JSON schema for required inputs/outputs)"],"output_types":["n8n workflow JSON definition","workflow metadata (name, description, tags)"],"categories":["code-generation-editing","planning-reasoning"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_ami3466-mcp-n8n-workflow-builder-flowengine__cap_2","uri":"capability://data.processing.analysis.workflow.validation.and.schema.compliance.checking","name":"workflow validation and schema compliance checking","description":"Validates n8n workflow definitions against the discovered node schemas, checking that all node configurations match their declared input schemas, required fields are present, and node connections are type-compatible. Performs static analysis without executing the workflow, catching configuration errors before deployment.","intents":["Validate a workflow definition before deploying it to n8n","Check if a generated workflow is syntactically and structurally correct","Identify missing required fields or invalid configurations in workflow nodes","Ensure node connections have compatible input/output types"],"best_for":["CI/CD pipelines validating workflow definitions before deployment","LLM agents that need to verify generated workflows are valid before submission","Workflow builders that want to provide real-time validation feedback"],"limitations":["Validates only schema compliance — does not detect logical errors or runtime failures (e.g., API calls to non-existent endpoints)","Cannot validate dynamic field dependencies or conditional node configurations that depend on runtime data","Does not check for performance issues or inefficient node chains"],"requires":["n8n workflow definition (JSON)","Access to node schema definitions (via introspection capability)","JSON schema validation library"],"input_types":["n8n workflow JSON definition","optional validation rules (JSON schema)"],"output_types":["validation result (boolean: valid/invalid)","error list with node IDs and field names","warnings for non-critical issues"],"categories":["data-processing-analysis","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_ami3466-mcp-n8n-workflow-builder-flowengine__cap_3","uri":"capability://automation.workflow.workflow.execution.orchestration.and.result.streaming","name":"workflow execution orchestration and result streaming","description":"Submits validated workflow definitions to n8n for execution and streams back execution results, node outputs, and error states in real-time through MCP. Handles workflow lifecycle management (start, monitor, cancel) and provides structured access to execution logs and intermediate node outputs for debugging and result extraction.","intents":["Execute a workflow and get back the final result","Stream execution progress and intermediate node outputs as the workflow runs","Cancel a running workflow if it takes too long or encounters an error","Access execution logs and debug information for failed workflows"],"best_for":["LLM agents that need to execute workflows and use results in downstream reasoning","Interactive workflow builders that show live execution progress","Automation systems that need to monitor and control long-running workflows"],"limitations":["Execution performance depends on n8n instance resources — no built-in queuing or load balancing","Streaming results requires persistent MCP connection — network interruptions may lose execution state","No automatic retry logic for failed nodes — requires explicit workflow-level error handling","Large workflow outputs may exceed MCP message size limits"],"requires":["n8n instance with workflow execution API enabled","Valid n8n workflow definition","MCP client with streaming/long-polling support","Appropriate n8n credentials for workflow inputs"],"input_types":["workflow definition (JSON)","workflow input parameters (JSON)","execution options (timeout, retry policy)"],"output_types":["execution status (running, completed, failed)","node outputs (JSON)","execution logs (text)","error messages with stack traces"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_ami3466-mcp-n8n-workflow-builder-flowengine__cap_4","uri":"capability://code.generation.editing.node.configuration.templating.and.parameter.binding","name":"node configuration templating and parameter binding","description":"Provides tools to create reusable node configuration templates with parameterized fields, allowing workflows to be instantiated with different input values without modifying the underlying node definitions. Supports variable substitution, conditional field inclusion, and schema-based parameter validation to ensure bound values match node input requirements.","intents":["Create a reusable workflow template that can be instantiated with different API keys or endpoints","Bind workflow parameters to node configurations without hardcoding values","Generate workflow variants for different environments (dev, staging, prod) from a single template","Allow non-technical users to customize workflows by filling in template parameters"],"best_for":["Multi-tenant workflow platforms that need to customize workflows per customer","Teams managing workflows across multiple environments with different configurations","Workflow marketplaces where templates are shared and customized by different users"],"limitations":["Template syntax and parameter binding are custom — requires documentation and learning curve","No built-in support for complex conditional logic in templates — advanced scenarios require manual workflow editing","Parameter validation is schema-based only — cannot validate semantic correctness (e.g., valid API endpoint format)"],"requires":["n8n workflow definition","Template parameter definitions (JSON schema)","Parameter values to bind (JSON)"],"input_types":["workflow template (JSON with parameter placeholders)","parameter bindings (JSON key-value pairs)"],"output_types":["instantiated workflow definition (JSON)","validation errors for missing or invalid parameters"],"categories":["code-generation-editing","data-processing-analysis"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_ami3466-mcp-n8n-workflow-builder-flowengine__cap_5","uri":"capability://code.generation.editing.workflow.composition.and.node.chaining.with.type.safety","name":"workflow composition and node chaining with type safety","description":"Provides programmatic APIs to compose workflows by chaining nodes together with automatic type checking of connections. Validates that output types from one node match input types of the next node, preventing type mismatches before workflow execution. Supports conditional branching, loops, and error handling patterns through a fluent API.","intents":["Programmatically build complex workflows by chaining nodes with type-safe connections","Ensure node outputs are compatible with downstream node inputs before submitting to n8n","Create reusable workflow building blocks that can be composed into larger workflows","Generate workflows with conditional logic and error handling patterns"],"best_for":["Developers building workflow builders or low-code platforms on top of n8n","LLM agents that need to compose workflows with guaranteed type safety","Teams building domain-specific workflow DSLs"],"limitations":["Type safety is limited to schema-declared types — cannot validate semantic compatibility (e.g., API response format matches expected schema)","Fluent API adds abstraction layer — developers must learn custom composition syntax in addition to n8n concepts","Complex control flow (nested loops, dynamic branching) may be difficult to express through the composition API"],"requires":["n8n node schema definitions","Composition API library (TypeScript/JavaScript)","Understanding of n8n node input/output types"],"input_types":["node type names (strings)","node configurations (JSON)","connection specifications (source node, target node, port mapping)"],"output_types":["n8n workflow definition (JSON)","type validation errors","composition graph visualization (optional)"],"categories":["code-generation-editing","planning-reasoning"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_ami3466-mcp-n8n-workflow-builder-flowengine__cap_6","uri":"capability://automation.workflow.workflow.versioning.and.change.tracking","name":"workflow versioning and change tracking","description":"Tracks versions of workflow definitions, stores change history, and provides diff capabilities to compare workflow versions. Enables rollback to previous versions and audit trails showing who modified workflows and when. Integrates with n8n's workflow storage to maintain version history alongside the canonical workflow definition.","intents":["Track changes to workflows over time and see who modified what","Compare two workflow versions to understand what changed","Rollback a workflow to a previous version if a recent change broke it","Maintain an audit trail of workflow modifications for compliance"],"best_for":["Teams collaborating on workflows who need change tracking","Regulated environments requiring audit trails of workflow changes","Workflow platforms that need to support workflow versioning and rollback"],"limitations":["Version storage requires external database — no built-in persistence in MCP server","Diff algorithm is JSON-based — may not provide meaningful diffs for complex nested structures","No built-in conflict resolution for concurrent modifications to the same workflow","Rollback is manual — requires explicit API call to restore previous version"],"requires":["External version storage (database, git, etc.)","Workflow definition snapshots","User identity information for audit trails"],"input_types":["workflow definition (JSON)","version metadata (author, timestamp, change description)"],"output_types":["version history (list of versions with metadata)","diff between two versions (JSON patch format)","rollback confirmation"],"categories":["automation-workflow","data-processing-analysis"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_ami3466-mcp-n8n-workflow-builder-flowengine__cap_7","uri":"capability://safety.moderation.credential.and.secret.management.for.workflow.nodes","name":"credential and secret management for workflow nodes","description":"Provides secure credential injection into workflow node configurations without exposing secrets in workflow definitions. Supports credential references (e.g., 'use credential named X') that are resolved at execution time from a secure credential store. Integrates with n8n's credential system and supports multiple credential types (API keys, OAuth tokens, database credentials).","intents":["Reference credentials in workflows without embedding secrets in workflow definitions","Rotate credentials without modifying workflow definitions","Share workflows with others without exposing API keys or passwords","Manage credentials across multiple workflow instances and environments"],"best_for":["Teams sharing workflows across environments and users","Platforms that need to manage credentials for customer workflows","Security-conscious organizations requiring secret management"],"limitations":["Credential resolution requires access to n8n's credential store — cannot work offline","No built-in credential rotation or expiration management","Credential types are limited to those supported by n8n — custom credential types require n8n extensions","Audit logging of credential access depends on n8n's audit system"],"requires":["n8n instance with credential management enabled","Credential definitions in n8n","Appropriate permissions to access credentials"],"input_types":["credential references (strings)","credential type specifications (JSON)"],"output_types":["resolved credentials (injected into workflow nodes)","credential validation status"],"categories":["safety-moderation","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_ami3466-mcp-n8n-workflow-builder-flowengine__cap_8","uri":"capability://automation.workflow.workflow.scheduling.and.trigger.configuration.via.mcp","name":"workflow scheduling and trigger configuration via mcp","description":"Configures workflow triggers (webhooks, cron schedules, event-based) and scheduling rules through MCP tools, enabling agents to set up automated workflow execution without UI interaction. Implements a trigger registry that maps trigger types to n8n's scheduling and webhook APIs.","intents":["Programmatically set up a cron schedule for a workflow to run at specific times","Configure webhook triggers for a workflow to respond to external events","Set up event-based triggers (e.g., on file upload, database change) for workflows","Modify workflow scheduling rules without manual UI interaction"],"best_for":["Agents automating workflow deployment and scheduling","Platforms offering workflow scheduling as a service","Teams automating trigger configuration for multiple workflows"],"limitations":["Cron schedule syntax is limited to n8n's supported formats; complex schedules may not be expressible","Webhook triggers require the n8n instance to be publicly accessible; may not work behind firewalls","Event-based triggers depend on n8n's event system; custom events may not be supported","No built-in rate limiting or throttling for triggered workflows"],"requires":["n8n instance with scheduling and webhook support enabled","Cron syntax support (for schedule-based triggers)","Network accessibility for webhook triggers"],"input_types":["trigger type (string: 'cron', 'webhook', 'event')","trigger configuration (cron expression, webhook URL, event name)","workflow ID (string)"],"output_types":["trigger ID (string)","trigger metadata (type, created_at, status)","webhook URL (for webhook triggers)","next execution time (for cron triggers)"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_ami3466-mcp-n8n-workflow-builder-flowengine__cap_9","uri":"capability://planning.reasoning.workflow.performance.profiling.and.optimization.suggestions","name":"workflow performance profiling and optimization suggestions","description":"Analyzes workflow execution performance, identifying bottlenecks and slow nodes, and providing optimization suggestions (e.g., parallelization, caching, node replacement). Implements a profiling engine that collects execution metrics and applies heuristic rules to suggest improvements.","intents":["Identify which nodes in a workflow are causing slowdowns","Get suggestions for optimizing workflow performance (parallelization, caching, etc.)","Understand resource usage (CPU, memory, API calls) for each node","Refactor workflows for better performance based on profiling data"],"best_for":["Teams optimizing workflows for production performance","Platforms offering workflow performance monitoring and optimization","Agents iteratively improving workflow efficiency"],"limitations":["Profiling data is only available after workflow execution; cannot predict performance before running","Optimization suggestions are heuristic-based and may not apply to all workflows","Resource usage metrics depend on n8n's monitoring capabilities; may be limited","Parallelization suggestions may not be applicable if nodes have data dependencies"],"requires":["n8n workflow execution history with performance metrics","Profiling engine with optimization heuristics","Node performance baseline data"],"input_types":["workflow execution ID (string)","performance metrics (execution time, resource usage)"],"output_types":["performance report (JSON with bottleneck analysis)","node-level metrics (execution time, resource usage)","optimization suggestions (with estimated improvement)"],"categories":["planning-reasoning","data-processing-analysis"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":28,"verified":false,"data_access_risk":"high","permissions":["n8n instance 1.0+ with accessible node registry","MCP client with tool-calling support","Network connectivity to n8n instance","n8n instance with node registry accessible","LLM with function-calling or tool-use capability","Natural language description of desired workflow","n8n workflow definition (JSON)","Access to node schema definitions (via introspection capability)","JSON schema validation library","n8n instance with workflow execution API enabled"],"failure_modes":["Schema introspection reflects only nodes installed in the connected n8n instance — custom nodes must be pre-registered","Does not provide runtime state or execution history of workflows, only static schema definitions","Requires n8n instance to be running and accessible — no offline schema caching","Generation quality depends on LLM understanding of available nodes — complex or domain-specific nodes may be misused","No automatic optimization of generated workflows — may create inefficient node chains or redundant operations","Requires manual review and testing before deploying generated workflows to production","Cannot generate workflows for custom nodes unless their schemas are explicitly provided to the LLM","Validates only schema compliance — does not detect logical errors or runtime failures (e.g., API calls to non-existent endpoints)","Cannot validate dynamic field dependencies or conditional node configurations that depend on runtime data","Does not check for performance issues or inefficient node chains","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.05,"quality":0.3,"ecosystem":0.49000000000000005,"match_graph":0.25,"freshness":0.5,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.15,"match_graph":0.23,"freshness":0.12}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-05-24T12:16:25.635Z","last_scraped_at":"2026-05-03T15:19:46.451Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=ami3466-mcp-n8n-workflow-builder-flowengine","compare_url":"https://unfragile.ai/compare?artifact=ami3466-mcp-n8n-workflow-builder-flowengine"}},"signature":"lAbiI7AalSVZ5aHhLIVCfs2+a2QlziLT9MZuByB3IIM0nikMIi+1NoEl13wnQdNH/x8sqEIW8wTzVn2q+1xqCA==","signedAt":"2026-06-20T08:21:59.898Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/ami3466-mcp-n8n-workflow-builder-flowengine","artifact":"https://unfragile.ai/ami3466-mcp-n8n-workflow-builder-flowengine","verify":"https://unfragile.ai/api/v1/verify?slug=ami3466-mcp-n8n-workflow-builder-flowengine","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}