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Tools
| Name | Description |
|---|---|
client_list | Get a list of connected clients to the Redis server. |
create_vector_index_hash | Create a Redis 8 vector similarity index using HNSW on a Redis hash. This function sets up a Redis index for approximate nearest neighbor (ANN) search using the HNSW algorithm and float32 vector embeddings. |
dbsize | Get the number of keys stored in the Redis database |
delete | Delete a Redis key. |
expire | Set an expiration time for a Redis key. |
get | Get a Redis string value. |
get_index_info | Retrieve schema and information about a specific Redis index using FT.INFO. |
get_indexed_keys_number | Retrieve the number of indexed keys by the index |
get_indexes | List of indexes in the Redis database Returns: str: A JSON string containing the list of indexes or an error message. |
get_vector_from_hash | Retrieve a vector from a Redis hash and convert it back from binary blob. |
hdel | Delete a field from a Redis hash. |
hexists | Check if a field exists in a Redis hash. |
hget | Get the value of a field in a Redis hash. |
hgetall | Get all fields and values from a Redis hash. |
hset | Set a field in a hash stored at key with an optional expiration time. |
hybrid_search | Perform a hybrid search combining a Redis filter expression with KNN vector similarity. Hybrid search pre-filters documents by metadata before ranking by vector similarity — the standard pattern for production RAG and semantic search pipelines. Filter expression examples: "*" → no filter, pure vector search (same as vector_search_hash) "@category:{news}" → tag filter "@year:[2020 2024]" → numeric range "@lang:{en} @year:[2022 +inf]" → combined tag + range "@title:redis" → full-text match on a text field Full filter syntax: https://redis.io/docs/latest/develop/interact/search-and-query/query/ |
info | Get Redis server information and statistics. |
json_del | Delete a JSON value from Redis at a given path. |
json_get | Retrieve a JSON value from Redis at a given path. |
json_set | Set a JSON value in Redis at a given path with an optional expiration time. |
llen | Get the length of a Redis list. |
lpop | Remove and return the first element from a Redis list. |
lpush | Push a value onto the left of a Redis list and optionally set an expiration time. |
lrange | Get elements from a Redis list within a specific range. Returns: str: A JSON string containing the list of elements or an error message. |
lrem | Remove elements from a Redis list. |
psubscribe | Subscribe to Redis channels using a pattern. |
publish | Publish a message to a Redis channel. |
read_messages | Read pending pub/sub messages for an existing subscription. |
rename | Renames a Redis key from old_key to new_key. |
rpop | Remove and return the last element from a Redis list. |
rpush | Push a value onto the right of a Redis list and optionally set an expiration time. |
sadd | Add a value to a Redis set with an optional expiration time. |
scan_all_keys | Scan and return ALL keys matching a pattern using multiple SCAN iterations. This function automatically handles the SCAN cursor iteration to collect all matching keys. It's safer than KEYS * for large databases but will still collect all results in memory. ⚠️ WARNING: With very large datasets (millions of keys), this may consume significant memory. For large-scale operations, consider using scan_keys() with manual iteration instead. |
scan_keys | Scan keys in the Redis database using the SCAN command (non-blocking, production-safe). ⚠️ IMPORTANT: This returns PARTIAL results from one iteration. Use scan_all_keys() to get ALL matching keys, or call this function multiple times with the returned cursor until cursor becomes 0. The SCAN command iterates through the keyspace in small chunks, making it safe to use on large databases without blocking other operations. |
search_redis_documents | Search Redis documentation and knowledge base to learn about Redis concepts and use cases. This tool exposes updated and curated documentation, and must be invoked every time the user wants to learn more in areas including: **Common Use Cases:** - Session Management: User session storage and management - Caching: Application-level and database query caching - Rate Limiting: API throttling and request limiting - Leaderboards: Gaming and ranking systems - Semantic Search: AI-powered similarity search - Agentic Workflows: AI agent state and memory management - RAG (Retrieval-Augmented Generation): Vector storage for AI applications - Real-time Analytics: Counters, metrics, and time-series data - Message Queues: Task queues and job processing - Geospatial: Location-based queries and proximity search |
set | Set a Redis string value with an optional expiration time. |
set_vector_in_hash | Store a vector as a field in a Redis hash. |
smembers | Get all members of a Redis set. |
srem | Remove a value from a Redis set. |
subscribe | Subscribe to a Redis channel and return a reusable subscription handle. |
type | Returns the string representation of the type of the value stored at key |
unsubscribe | Unsubscribe and close an existing pub/sub subscription. |
vector_search_hash | Perform a KNN vector similarity search using Redis 8 or later version on vectors stored in hash data structures. |
xack | Acknowledge entries that were processed by a consumer group. |
xadd | Add an entry to a Redis stream with an optional expiration time. |
xdel | Delete an entry from a Redis stream. |
xgroup_create | Create a consumer group for a Redis stream. |
xgroup_destroy | Destroy a consumer group for a Redis stream. |
xrange | Read entries from a Redis stream. |
xreadgroup | Read entries from a Redis stream using a consumer group. |
zadd | Add a member to a Redis sorted set with an optional expiration time. |
zrange | Retrieve a range of members from a Redis sorted set. |
zrem | Remove a member from a Redis sorted set. |