MCP Context Server MCP Server

What the code does

We read the source, 21 h ago · rules 3dff92dd89df

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

этот файл ставится пользователю, но в репозитории его нет

  Update (re-download compose file + pull newer images + restart):

        result = subprocess.run(

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add mcp-context-server -- uvx mcp-context-server

{
  "mcpServers": {
    "mcp-context-server": {
      "args": [
        "mcp-context-server"
      ],
      "command": "uvx"
    }
  }
}

[mcp_servers.mcp-context-server]
command = "uvx"
args = ["mcp-context-server"]

{
  "mcpServers": {
    "mcp-context-server": {
      "args": [
        "mcp-context-server"
      ],
      "command": "uvx"
    }
  }
}

{
  "mcpServers": {
    "mcp-context-server": {
      "args": [
        "mcp-context-server"
      ],
      "command": "uvx"
    }
  }
}

This one needs environment variables set before it will start: LOG_LEVEL (Log level), STORAGE_BACKEND (Storage backend type: sqlite (default) or postgresql), MAX_IMAGE_SIZE_MB (Maximum individual image size in megabytes), MAX_TOTAL_SIZE_MB (Maximum total request size in megabytes), DB_PATH (Custom database file location path), POOL_MAX_READERS (Maximum number of concurrent read connections in the pool), POOL_MAX_WRITERS (Maximum number of concurrent write connections in the pool), POOL_CONNECTION_TIMEOUT_S (Connection timeout in seconds), POOL_IDLE_TIMEOUT_S (Idle connection timeout in seconds), POOL_HEALTH_CHECK_INTERVAL_S (Connection health check interval in seconds), RETRY_MAX_RETRIES (Maximum number of retry attempts for failed operations), RETRY_BASE_DELAY_S (Base delay in seconds between retry attempts), RETRY_MAX_DELAY_S (Maximum delay in seconds between retry attempts), RETRY_JITTER (Enable random jitter in retry delays), RETRY_BACKOFF_FACTOR (Exponential backoff multiplication factor for retries), SQLITE_FOREIGN_KEYS (Enable SQLite foreign key constraints), SQLITE_JOURNAL_MODE (SQLite journal mode (e.g., WAL, DELETE)), SQLITE_SYNCHRONOUS (SQLite synchronous mode (e.g., NORMAL, FULL, OFF)), SQLITE_TEMP_STORE (SQLite temporary storage location (e.g., MEMORY, FILE)), SQLITE_MMAP_SIZE (SQLite memory-mapped I/O size in bytes), SQLITE_CACHE_SIZE (SQLite cache size (negative value for KB, positive for pages)), SQLITE_PAGE_SIZE (SQLite page size in bytes), SQLITE_WAL_AUTOCHECKPOINT (SQLite WAL autocheckpoint threshold in pages), SQLITE_BUSY_TIMEOUT_MS (SQLite busy timeout in milliseconds), SQLITE_WAL_CHECKPOINT (SQLite WAL checkpoint mode (e.g., PASSIVE, FULL, RESTART)), SHUTDOWN_TIMEOUT_S (Server shutdown timeout in seconds), SHUTDOWN_TIMEOUT_TEST_S (Test mode shutdown timeout in seconds), QUEUE_TIMEOUT_S (Queue operation timeout in seconds), QUEUE_TIMEOUT_TEST_S (Test mode queue timeout in seconds), CIRCUIT_BREAKER_FAILURE_THRESHOLD (Circuit breaker failure threshold before opening), CIRCUIT_BREAKER_RECOVERY_TIMEOUT_S (Circuit breaker recovery timeout in seconds), CIRCUIT_BREAKER_HALF_OPEN_MAX_CALLS (Maximum calls allowed in circuit breaker half-open state), POSTGRESQL_CONNECTION_STRING (Complete PostgreSQL connection string (overrides individual settings if provided)), POSTGRESQL_HOST (PostgreSQL server host address), POSTGRESQL_PORT (PostgreSQL server port number), POSTGRESQL_USER (PostgreSQL database username), POSTGRESQL_PASSWORD (PostgreSQL database password), POSTGRESQL_DATABASE (PostgreSQL database name), POSTGRESQL_POOL_MIN (PostgreSQL connection pool minimum size), POSTGRESQL_POOL_MAX (PostgreSQL connection pool maximum size), POSTGRESQL_POOL_TIMEOUT_S (PostgreSQL connection pool timeout in seconds), POSTGRESQL_COMMAND_TIMEOUT_S (PostgreSQL command execution timeout in seconds), POSTGRESQL_MIGRATION_TIMEOUT_S (Timeout in seconds for PostgreSQL migration operations (default: 300)), POSTGRESQL_MAX_INACTIVE_LIFETIME_S (Close idle PostgreSQL connections after this many seconds (0 to disable, default: 300)), POSTGRESQL_MAX_QUERIES (Recycle PostgreSQL connections after this many queries (0 to disable, default: 10000)), POSTGRESQL_TCP_KEEPALIVES_IDLE_S (Seconds of idle time before sending first TCP keepalive probe (0 to disable, default: 15)), POSTGRESQL_TCP_KEEPALIVES_INTERVAL_S (Seconds between subsequent TCP keepalive probes (0 to disable, default: 5)), POSTGRESQL_TCP_KEEPALIVES_COUNT (Number of failed TCP keepalive probes before connection is considered dead (0 to disable, default: 3)), POSTGRESQL_STATEMENT_CACHE_SIZE (asyncpg prepared statement cache size. Set to 0 for external pooler compatibility (PgBouncer transaction mode, Pgpool-II, etc.). Default: 100), POSTGRESQL_MAX_CACHED_STATEMENT_LIFETIME_S (Maximum lifetime of cached prepared statements in seconds (default: 300). Has no effect when statement_cache_size=0), POSTGRESQL_MAX_CACHEABLE_STATEMENT_SIZE (Maximum size of statement to cache in bytes (default: 15360). Has no effect when statement_cache_size=0), POSTGRESQL_SSL_MODE (PostgreSQL SSL mode (disable, allow, prefer, require, verify-ca, verify-full)), POSTGRESQL_SCHEMA (PostgreSQL schema name for table and index operations (default: public)), ENABLE_SEMANTIC_SEARCH (Enable semantic search functionality), ENABLE_EMBEDDING_GENERATION (Enable embedding generation for stored context. Default true - server fails if dependencies not met. Set false to disable embeddings.), OLLAMA_HOST (Ollama API host URL for embedding generation), OLLAMA_AUTO_PULL (Automatically pull missing Ollama models on startup (default: true)), OLLAMA_PULL_TIMEOUT_S (Timeout in seconds for pulling Ollama models (default: 900, range: 30-3600)), EMBEDDING_OLLAMA_TRUNCATE (Ollama embedding truncation mode: false (default) returns error when context exceeded, true enables silent truncation), EMBEDDING_OLLAMA_NUM_CTX (Ollama embedding context window size in tokens (default: 4096, range: 512-2097152)), EMBEDDING_MODEL (Embedding model name for semantic search), EMBEDDING_DIM (Embedding vector dimensions), EMBEDDING_TIMEOUT_S (Timeout in seconds for embedding generation API calls), EMBEDDING_RETRY_MAX_ATTEMPTS (Maximum number of retry attempts for embedding generation), EMBEDDING_RETRY_BASE_DELAY_S (Base delay in seconds between retry attempts (with exponential backoff)), EMBEDDING_MAX_CONCURRENT (Maximum concurrent embedding generation operations (default: 3, range: 1-20)), ENABLE_SUMMARY_GENERATION (Enable summary generation for stored context. Default true - server fails if dependencies not met. Set false to disable summaries.), SUMMARY_PROVIDER (Summary provider: ollama (default), openai, or anthropic), SUMMARY_MODEL (Summary generation model name (default: qwen3:0.6b)), SUMMARY_MAX_TOKENS (Maximum output tokens for summary generation (default: 4000, range: 50-16384). Increase if summaries are truncated by reasoning models), SUMMARY_TIMEOUT_S (Timeout in seconds for summary generation API calls), SUMMARY_RETRY_MAX_ATTEMPTS (Maximum number of retry attempts for summary generation), SUMMARY_RETRY_BASE_DELAY_S (Base delay in seconds between retry attempts (with exponential backoff)), SUMMARY_MAX_CONCURRENT (Maximum concurrent summary generation operations (default: 3, range: 1-20)), SUMMARY_PROMPT (Custom summarization prompt. Overrides the built-in default. Used as system message for the LLM.), SUMMARY_MIN_CONTENT_LENGTH (Minimum text content length in characters to trigger summary generation (default: 500, range: 0-10000). Set to 0 to always generate.), SUMMARY_OLLAMA_NUM_CTX (Ollama summary context window size in tokens (default: 32768, range: 512-2097152)), SUMMARY_OLLAMA_TRUNCATE (Ollama summary truncation mode: false (default) returns error when context exceeded, true enables silent truncation), SUMMARY_OPENAI_REASONING_EFFORT (Reasoning effort level for OpenAI reasoning models (default: low). Valid values vary by generation: gpt-5: low, medium, high; gpt-5.1+: none, low, medium, high, xhigh. Default low is universally valid across all generations), SUMMARY_ANTHROPIC_EFFORT (Effort level for Anthropic Claude models (default: none). Valid values: max, high, medium, low. Controls inference effort (adaptive thinking)), ANTHROPIC_API_KEY (Anthropic API key for summary generation), ENABLE_FTS (Enable full-text search functionality), FTS_LANGUAGE (Language for FTS stemming (e.g., english, german, french)), FTS_RERANK_WINDOW_SIZE (Characters of context around each FTS match for reranking passage extraction (default: 750)), FTS_RERANK_GAP_MERGE (Merge FTS match regions within this character distance (default: 100)), ENABLE_HYBRID_SEARCH (Enable hybrid search combining FTS and semantic search with RRF fusion), HYBRID_RRF_K (RRF smoothing constant for hybrid search (default 60)), HYBRID_RRF_OVERFETCH (Multiplier for over-fetching results before RRF fusion (default: 2)), HYBRID_FTS_OR_THRESHOLD (Minimum significant query terms to switch hybrid FTS from AND to OR logic (default: 4)), SEARCH_DEFAULT_SORT_BY (Default sort order for search results: relevance (only 'relevance' supported in current version)), SEARCH_TRUNCATION_LENGTH (Maximum character length for truncated text_content in search results (default: 300, range: 50-1000)), ENABLE_CHUNKING (Enable text chunking for embedding generation (default: true)), CHUNK_SIZE (Target chunk size in characters (default: 1500)), CHUNK_OVERLAP (Overlap between chunks in characters (default: 150)), CHUNK_AGGREGATION (Chunk score aggregation method: max (only 'max' supported in current version)), CHUNK_DEDUP_OVERFETCH (Multiplier for over-fetching chunks before deduplication (default: 5)), ENABLE_RERANKING (Enable cross-encoder reranking of search results (default: true)), RERANKING_PROVIDER (Reranking provider (default: flashrank)), RERANKING_MODEL (Reranking model name (default: ms-marco-MiniLM-L-12-v2)), RERANKING_MAX_LENGTH (Maximum input length for reranking in tokens (default: 512)), RERANKING_OVERFETCH (Multiplier for over-fetching results before reranking (default: 4)), RERANKING_CACHE_DIR (Directory for caching reranking models), RERANKING_CHARS_PER_TOKEN (Estimated characters per token for passage size validation (default: 4.0, range: 2.0-8.0)), RERANKING_INTRA_OP_THREADS (ONNX Runtime intra-operation parallelism threads for reranking (default: 0 = auto-detect)), RERANKING_CPU_MEM_ARENA (Enable ONNX Runtime CPU memory arena for reranking (default: false)), RERANKING_BATCH_SIZE (Maximum passages per ONNX Runtime inference batch during reranking (default: 32)), EMBEDDING_PROVIDER (Embedding provider: ollama (default), openai, azure, huggingface, or voyage), OPENAI_API_KEY (OpenAI API key for OpenAI embedding provider), OPENAI_API_BASE (Custom base URL for OpenAI-compatible APIs), OPENAI_ORGANIZATION (OpenAI organization ID), AZURE_OPENAI_API_KEY (Azure OpenAI API key), AZURE_OPENAI_ENDPOINT (Azure OpenAI endpoint URL), AZURE_OPENAI_EMBEDDING_DEPLOYMENT_NAME (Azure OpenAI embedding deployment name), AZURE_OPENAI_API_VERSION (Azure OpenAI API version (default: 2024-02-01)), HUGGINGFACEHUB_API_TOKEN (HuggingFace Hub API token for HuggingFace embedding provider), VOYAGE_API_KEY (Voyage AI API key for Voyage embedding provider), VOYAGE_TRUNCATION (Voyage AI truncation mode: false (default) returns error when context exceeded, true enables silent truncation), VOYAGE_BATCH_SIZE (Voyage AI batch size for embedding requests), LANGSMITH_TRACING (Enable LangSmith tracing), LANGSMITH_API_KEY (LangSmith API key), LANGSMITH_PROJECT (LangSmith project name), LANGSMITH_ENDPOINT (LangSmith API endpoint URL), METADATA_INDEXED_FIELDS (Comma-separated list of metadata fields to index (field:type format)), METADATA_INDEX_SYNC_MODE (Index sync mode: strict (fail), auto (sync), warn (log), additive (default, add missing only)), MCP_TRANSPORT (Transport mode: stdio for local, http for Docker/remote), FASTMCP_HOST (HTTP bind address (use 0.0.0.0 for Docker)), FASTMCP_PORT (HTTP port number), FASTMCP_STATELESS_HTTP (Enable stateless HTTP mode for horizontal scaling. Enabled by default as the server has no stateful MCP features. Set to false only if you need server-side MCP session tracking.), DISABLED_TOOLS (Comma-separated list of tools to disable (e.g., delete_context,update_context)), MCP_AUTH_TOKEN (Bearer token for HTTP authentication (required when using SimpleTokenVerifier)), MCP_AUTH_CLIENT_ID (Client ID to assign to authenticated requests), MCP_AUTH_PROVIDER (Authentication provider: none (default), simple_token), MCP_SERVER_INSTRUCTIONS (Custom server instructions text. Overrides built-in default. Set to empty string to disable.). The author declared them in the registry entry; get the values from the project itself.