swift package manager dependency resolution via mcp, mcp protocol server implementation in swift, package manifest parsing and schema extraction, package version constraint resolution and compatibility checking, transitive dependency graph traversal and analysis, package metadata and registry querying

spm-mcp

MCP ServerFree

** - iOS Swift Package Manager server written in Swift

Open Source

/ 100

6 capabilities

Capabilities6 decomposed

swift package manager dependency resolution via mcp

Medium confidence

Exposes SPM's native dependency resolution engine through the Model Context Protocol, allowing Claude and other MCP clients to query package metadata, resolve version constraints, and inspect dependency graphs without executing shell commands. Implements MCP server protocol in Swift to bridge SPM's internal package resolution APIs with LLM-based tools, enabling structured queries about package compatibility and transitive dependencies.

Solves for

Query which versions of a package are compatible with my current project constraintsUnderstand the full dependency tree including transitive dependencies for a Swift packageResolve version conflicts between multiple package requirements programmaticallyGet package metadata (description, license, repository URL) without parsing manifest files manually

Best for

iOS/Swift developers using Claude for code assistance and dependency management

Teams building LLM-powered Swift development tools that need package intelligence

Developers automating Swift project scaffolding and dependency auditing

Requires

Swift 5.9 or later

Xcode 15.0+ with SPM tools

macOS 12.0+ (primary development platform)

Limitations

Requires Swift 5.9+ and Xcode toolchain; cannot run on non-macOS systems without cross-compilation setup

Limited to packages available in the Swift Package Index or private registries configured in the local environment

No caching layer — each dependency resolution query may trigger network requests to package registries

What makes it unique

Native Swift implementation of MCP server that directly integrates with SPM's internal package resolution APIs rather than wrapping shell commands, enabling structured, type-safe queries about package dependencies without subprocess overhead or parsing fragility

vs alternatives

Provides direct programmatic access to SPM's dependency resolver within Claude conversations, whereas alternatives require shell command execution or external REST APIs, reducing latency and enabling richer structured responses

mcp protocol server implementation in swift

Medium confidence

Implements the Model Context Protocol specification as a native Swift server, handling JSON-RPC message serialization, request routing, and resource/tool registration. Uses Swift's async/await concurrency model to manage bidirectional communication with MCP clients, providing a type-safe foundation for exposing SPM capabilities through standardized MCP endpoints (resources, tools, prompts).

Solves for

Enable Claude and other MCP-compatible clients to invoke SPM operations as structured toolsExpose SPM package data as queryable MCP resources with consistent schemaIntegrate Swift package management into LLM-powered development workflows without custom protocol implementation

Best for

Swift developers building MCP servers for domain-specific tools

Teams extending Claude's capabilities with Swift-native integrations

Developers creating LLM-powered IDE extensions or development assistants

Requires

Swift 5.9+

Foundation framework (standard library)

MCP specification documentation

Limitations

MCP protocol version locked to specific spec version; breaking changes in MCP spec require code updates

No built-in authentication or authorization — relies on transport layer (stdio, HTTP) for security

Single-threaded event loop model may bottleneck under high concurrent request volume (>100 simultaneous queries)

What makes it unique

Implements MCP server protocol natively in Swift using async/await concurrency primitives, avoiding the overhead of spawning separate processes or managing thread pools, and providing type-safe message handling through Swift's Codable framework

vs alternatives

More efficient than Python or Node.js MCP servers for Swift-specific operations because it eliminates language boundary crossing and leverages Swift's compile-time type safety for protocol message validation

package manifest parsing and schema extraction

Medium confidence

Parses Swift Package Manager manifest files (Package.swift) to extract structured metadata including dependencies, targets, products, and build settings. Converts unstructured manifest code into queryable data structures that can be inspected by LLM clients, enabling semantic understanding of package configuration without manual file parsing or regex-based extraction.

Solves for

Extract all dependencies and their version constraints from a Package.swift fileIdentify which targets depend on which packages within a projectRetrieve build settings, platform requirements, and product definitions from a manifestValidate manifest syntax and detect configuration errors programmatically

Best for

Developers using Claude to analyze or refactor Swift package configurations

Teams automating package dependency audits and compliance checks

Build system integrators that need to programmatically understand SPM manifests

Requires

Swift 5.9+

Valid Package.swift file in Swift Package Manager format

Access to the manifest file on the local filesystem

Limitations

Only supports Package.swift manifests; cannot parse legacy .podspec or Cartfile formats

Requires valid Swift syntax in manifest files; malformed manifests will fail parsing

Does not execute manifest code (e.g., conditional dependencies based on runtime logic) — only static analysis

What makes it unique

Leverages Swift's native AST parsing capabilities (via SwiftSyntax or direct SPM APIs) to extract manifest structure with full semantic understanding, rather than regex-based or line-by-line parsing, enabling accurate handling of complex manifest configurations

vs alternatives

Provides accurate, semantically-aware manifest parsing compared to regex-based tools, and avoids the fragility of shell-based parsing (e.g., swift package describe) by working directly with SPM's internal data structures

package version constraint resolution and compatibility checking

Medium confidence

Resolves version constraints specified in package dependencies against available package versions, determining which versions satisfy all constraints and detecting conflicts. Implements SPM's constraint resolution algorithm (similar to semantic versioning resolution) to answer compatibility queries, enabling LLM clients to understand which package versions can coexist in a project.

Solves for

Check if a specific package version is compatible with my current project's constraintsFind the latest version of a package that satisfies all transitive dependency constraintsIdentify version conflicts between multiple packages and suggest compatible versionsUnderstand why a particular version cannot be used due to constraint violations

Best for

Developers troubleshooting dependency version conflicts in Swift projects

CI/CD systems that need to validate package compatibility before building

Package maintainers understanding which versions of their dependencies they support

Requires

Swift 5.9+

Network access to Swift Package Index or configured package registries

Valid package identifiers and version constraint specifications

Limitations

Resolution algorithm is deterministic but may not find solutions in highly constrained dependency graphs (NP-complete problem)

Requires network access to package registries to fetch available versions; offline mode is limited

Does not account for platform-specific version availability (e.g., iOS-only packages)

What makes it unique

Integrates SPM's native constraint resolution algorithm directly, providing the same resolution logic that Xcode uses, rather than reimplementing a separate resolver that may diverge from SPM's behavior

vs alternatives

Guarantees compatibility with SPM's actual resolution behavior because it uses the same underlying algorithm, whereas external resolvers (e.g., custom Python scripts) may produce different results due to algorithm differences

transitive dependency graph traversal and analysis

Medium confidence

Builds and traverses the complete transitive dependency graph for a Swift package, enabling queries about indirect dependencies, circular dependency detection, and dependency depth analysis. Implements graph traversal algorithms (BFS/DFS) to compute dependency metrics and identify structural issues in the dependency tree.

Solves for

See the full dependency tree including all transitive dependencies for my projectDetect circular dependencies or dependency cycles that might cause build issuesUnderstand how deep the dependency tree is and identify heavy dependency chainsFind all packages that depend on a specific package (reverse dependency lookup)

Best for

Developers auditing dependency health and identifying bloated dependency trees

Teams enforcing dependency policies (e.g., limiting transitive depth or number of dependencies)

Package maintainers understanding the impact of their package on downstream projects

Requires

Swift 5.9+

Resolved dependency graph (requires prior dependency resolution)

Network access to package registries for fetching transitive dependencies

Limitations

Graph construction requires resolving all dependencies, which may be slow for large projects (>100 dependencies)

Circular dependency detection assumes acyclic graph; some SPM configurations may have conditional cycles

Does not account for optional or platform-specific dependencies in graph visualization

What makes it unique

Provides direct access to SPM's internal dependency graph representation, enabling efficient traversal without reconstructing the graph from manifest files, and supporting both forward and reverse dependency queries

vs alternatives

More efficient than parsing manifests and reconstructing graphs manually because it leverages SPM's pre-computed graph structure, and provides accurate cycle detection that accounts for SPM's resolution semantics

package metadata and registry querying

Medium confidence

Queries package metadata from the Swift Package Index and other registries, retrieving information such as package description, license, repository URL, maintainer information, and available versions. Implements HTTP-based registry queries with caching to reduce network overhead and provide fast metadata lookups for LLM clients.

Solves for

Get the description and license of a package to understand what it doesFind the repository URL and maintainer information for a packageList all available versions of a package and their release datesCheck the health and maintenance status of a package (last update, issue count, etc.)

Best for

Developers researching packages before adding them as dependencies

Teams evaluating package quality and maintenance status

LLM-powered tools that need to provide context about packages in recommendations

Requires

Swift 5.9+

Network access to Swift Package Index (https://swiftpackageindex.com) or configured registries

Package identifier (name or URL)

Limitations

Metadata availability depends on package registry; not all packages have complete metadata

Registry queries may be rate-limited; high-volume metadata lookups may hit API limits

Caching strategy may serve stale metadata if packages are updated frequently

What makes it unique

Integrates directly with Swift Package Index and SPM registry APIs, providing authoritative metadata without relying on third-party package databases, and implementing intelligent caching to balance freshness with performance

vs alternatives

Provides more accurate and up-to-date metadata than manual registry searches because it queries official sources directly, and caching reduces latency compared to repeated HTTP requests

Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.

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1 shared capability

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A Model Context Protocol (MCP) server and CLI that provides tools for agent use when working on iOS and macOS projects.

swift package manager integration and dependency management

1 shared capability

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1 shared capability

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automated dependency detection and installation

1 shared capability

Best For

✓iOS/Swift developers using Claude for code assistance and dependency management
✓Teams building LLM-powered Swift development tools that need package intelligence
✓Developers automating Swift project scaffolding and dependency auditing
✓Swift developers building MCP servers for domain-specific tools
✓Teams extending Claude's capabilities with Swift-native integrations
✓Developers creating LLM-powered IDE extensions or development assistants
✓Developers using Claude to analyze or refactor Swift package configurations
✓Teams automating package dependency audits and compliance checks

Known Limitations

⚠Requires Swift 5.9+ and Xcode toolchain; cannot run on non-macOS systems without cross-compilation setup
⚠Limited to packages available in the Swift Package Index or private registries configured in the local environment
⚠No caching layer — each dependency resolution query may trigger network requests to package registries
⚠Does not support custom package sources beyond what SPM natively supports (no PyPI-style custom indexes)
⚠MCP protocol version locked to specific spec version; breaking changes in MCP spec require code updates
⚠No built-in authentication or authorization — relies on transport layer (stdio, HTTP) for security

Requirements

Swift 5.9 or laterXcode 15.0+ with SPM toolsmacOS 12.0+ (primary development platform)MCP client implementation (e.g., Claude Desktop, custom MCP host)Network access to Swift Package Index or configured private registriesSwift 5.9+Foundation framework (standard library)MCP specification documentation

Input / Output

Accepts: package identifiers (string), version constraint specifications (string, e.g., '1.0.0', '>=1.0.0,<2.0.0'), manifest file paths (string), JSON-RPC 2.0 requests, MCP protocol messages (initialize, call_tool, read_resource, etc.), Package.swift file path (string), manifest file contents (string), package identifier (string), version constraint specification (string, e.g., '>=1.0.0,<2.0.0'), list of dependency constraints (array of objects), resolved dependency manifest (structured data), package URL (string)

Produces: structured JSON with package metadata, dependency graph representation (adjacency list or tree format), version resolution results with compatibility status, error messages with constraint violation details, JSON-RPC 2.0 responses, MCP protocol messages (results, errors, resource contents), dependency list with version constraints, target definitions and their dependencies, product definitions and configurations, resolved version (string), compatibility status (boolean), list of compatible versions (array), conflict explanation (string with constraint details), dependency graph representation (adjacency list or tree JSON), list of transitive dependencies (array), circular dependency detection results (boolean + cycle path), dependency metrics (depth, width, total count), list of available versions (array with version numbers and dates), repository information (URL, license, maintainer), package description and documentation links

UnfragileRank

Adoption15%(30% weight)

Quality14%(25% weight)

Ecosystem30%(25% weight)

Match Graph10%(15% weight)

Freshness75%(5% weight)

UnfragileRank is computed from adoption signals, documentation quality, ecosystem connectivity, match graph feedback, and freshness. No artifact can pay for a higher rank.

Type: MCP Server

6 capabilities

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** - iOS Swift Package Manager server written in Swift

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Capabilities6 decomposed

swift package manager dependency resolution via mcp

Medium confidence

Solves for

Best for

iOS/Swift developers using Claude for code assistance and dependency management

Teams building LLM-powered Swift development tools that need package intelligence

Developers automating Swift project scaffolding and dependency auditing

Requires

Swift 5.9 or later

Xcode 15.0+ with SPM tools

macOS 12.0+ (primary development platform)

Limitations

Requires Swift 5.9+ and Xcode toolchain; cannot run on non-macOS systems without cross-compilation setup

Limited to packages available in the Swift Package Index or private registries configured in the local environment

No caching layer — each dependency resolution query may trigger network requests to package registries

What makes it unique

vs alternatives

mcp protocol server implementation in swift

Medium confidence

Solves for

Best for

Swift developers building MCP servers for domain-specific tools

Teams extending Claude's capabilities with Swift-native integrations

Developers creating LLM-powered IDE extensions or development assistants

Requires

Swift 5.9+

Foundation framework (standard library)

MCP specification documentation

Limitations

MCP protocol version locked to specific spec version; breaking changes in MCP spec require code updates

No built-in authentication or authorization — relies on transport layer (stdio, HTTP) for security

Single-threaded event loop model may bottleneck under high concurrent request volume (>100 simultaneous queries)

What makes it unique

vs alternatives

package manifest parsing and schema extraction

Medium confidence

Solves for

Best for

Developers using Claude to analyze or refactor Swift package configurations

Teams automating package dependency audits and compliance checks

Build system integrators that need to programmatically understand SPM manifests

Requires

Swift 5.9+

Valid Package.swift file in Swift Package Manager format

Access to the manifest file on the local filesystem

Limitations

Only supports Package.swift manifests; cannot parse legacy .podspec or Cartfile formats

Requires valid Swift syntax in manifest files; malformed manifests will fail parsing

Does not execute manifest code (e.g., conditional dependencies based on runtime logic) — only static analysis

What makes it unique

vs alternatives

package version constraint resolution and compatibility checking

Medium confidence

Solves for

Best for

Developers troubleshooting dependency version conflicts in Swift projects

CI/CD systems that need to validate package compatibility before building

Package maintainers understanding which versions of their dependencies they support

Requires

Swift 5.9+

Network access to Swift Package Index or configured package registries

Valid package identifiers and version constraint specifications

Limitations

Resolution algorithm is deterministic but may not find solutions in highly constrained dependency graphs (NP-complete problem)

Requires network access to package registries to fetch available versions; offline mode is limited

Does not account for platform-specific version availability (e.g., iOS-only packages)

What makes it unique

vs alternatives

transitive dependency graph traversal and analysis

Medium confidence

Solves for

Best for

Developers auditing dependency health and identifying bloated dependency trees

Teams enforcing dependency policies (e.g., limiting transitive depth or number of dependencies)

Package maintainers understanding the impact of their package on downstream projects

Requires

Swift 5.9+

Resolved dependency graph (requires prior dependency resolution)

Network access to package registries for fetching transitive dependencies

Limitations

Graph construction requires resolving all dependencies, which may be slow for large projects (>100 dependencies)

Circular dependency detection assumes acyclic graph; some SPM configurations may have conditional cycles

Does not account for optional or platform-specific dependencies in graph visualization

What makes it unique

vs alternatives

package metadata and registry querying

Medium confidence

Solves for

Best for

Developers researching packages before adding them as dependencies

Teams evaluating package quality and maintenance status

LLM-powered tools that need to provide context about packages in recommendations

Requires

Swift 5.9+

Network access to Swift Package Index (https://swiftpackageindex.com) or configured registries

Package identifier (name or URL)

Limitations

Metadata availability depends on package registry; not all packages have complete metadata

Registry queries may be rate-limited; high-volume metadata lookups may hit API limits

Caching strategy may serve stale metadata if packages are updated frequently

What makes it unique

vs alternatives

Provides more accurate and up-to-date metadata than manual registry searches because it queries official sources directly, and caching reduces latency compared to repeated HTTP requests

Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.

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spm-mcp

Capabilities6 decomposed

swift package manager dependency resolution via mcp

mcp protocol server implementation in swift

package manifest parsing and schema extraction

package version constraint resolution and compatibility checking

transitive dependency graph traversal and analysis

package metadata and registry querying

Related Artifactssharing capabilities

@anthropic-ai/mcpb

godoc-mcp-server

XcodeBuildMCP

XcodeBuildMCP

create-mcp-ts

MCPHub

Best For

Known Limitations

Requirements

Input / Output

UnfragileRank

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spm-mcp

Capabilities6 decomposed

swift package manager dependency resolution via mcp

mcp protocol server implementation in swift

package manifest parsing and schema extraction

package version constraint resolution and compatibility checking

transitive dependency graph traversal and analysis

package metadata and registry querying

Related Artifactssharing capabilities

@anthropic-ai/mcpb

godoc-mcp-server

XcodeBuildMCP

XcodeBuildMCP

create-mcp-ts

MCPHub

Best For

Known Limitations

Requirements

Input / Output

UnfragileRank

About

Categories

Alternatives to spm-mcp

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Get the weekly brief

Data Sources