langchain-ai · Dec 31, 2024 · Dec 31, 2024 · Jan 2, 2025 · Jan 2, 2025 · Jan 2, 2025
diff --git a/cookbook/basic_critique_revise.ipynb b/cookbook/basic_critique_revise.ipynb
@@ -20,8 +20,8 @@
       "outputs": [],
       "source": [
         "Deno.env.set(\"OPENAI_API_KEY\", \"\");\n",
-        "Deno.env.set(\"LANGCHAIN_API_KEY\", \"\");\n",
-        "Deno.env.set(\"LANGCHAIN_TRACING_V2\", \"true\");\n",
+        "Deno.env.set(\"LANGSMITH_API_KEY\", \"\");\n",
+        "Deno.env.set(\"LANGSMITH_TRACING\", \"true\");\n",
         "\n",
         "import { z } from \"npm:zod\";\n",
         "\n",

diff --git a/deno.json b/deno.json
@@ -28,7 +28,6 @@
     "readline": "https://deno.land/x/readline@v1.1.0/mod.ts",
     "uuid": "npm:/uuid",
     "youtubei.js": "npm:/youtubei.js",
-    "youtube-transcript": "npm:/youtube-transcript",
     "neo4j-driver": "npm:/neo4j-driver",
     "axios": "npm:/axios",
     "@mendable/firecrawl-js": "npm:/@mendable/firecrawl-js",
@@ -40,4 +39,4 @@
     "@smithy/util-utf8": "npm:/@smithy/util-utf8",
     "@aws-sdk/types": "npm:/@aws-sdk/types"
   }
-}
+}
diff --git a/docs/core_docs/docs/how_to/agent_executor.ipynb b/docs/core_docs/docs/how_to/agent_executor.ipynb
@@ -65,8 +65,8 @@
         "After you sign up at the link above, make sure to set your environment variables to start logging traces:\n",
         "\n",
         "```shell\n",
-        "export LANGCHAIN_TRACING_V2=\"true\"\n",
-        "export LANGCHAIN_API_KEY=\"...\"\n",
+        "export LANGSMITH_TRACING=\"true\"\n",
+        "export LANGSMITH_API_KEY=\"...\"\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# export LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/chat_model_caching.mdx b/docs/core_docs/docs/how_to/chat_model_caching.mdx
@@ -98,6 +98,64 @@ import RedisCacheExample from "@examples/cache/chat_models/redis.ts";
 
 <CodeBlock language="typescript">{RedisCacheExample}</CodeBlock>
 
+## Caching with Upstash Redis
+
+LangChain provides an Upstash Redis-based cache. Like the Redis-based cache, this cache is useful if you want to share the cache across multiple processes or servers. The Upstash Redis client uses HTTP and supports edge environments. To use it, you'll need to install the `@upstash/redis` package:
+
+```bash npm2yarn
+npm install @upstash/redis
+```
+
+You'll also need an [Upstash account](https://docs.upstash.com/redis#create-account) and a [Redis database](https://docs.upstash.com/redis#create-a-database) to connect to. Once you've done that, retrieve your REST URL and REST token.
+
+Then, you can pass a `cache` option when you instantiate the LLM. For example:
+
+import UpstashRedisCacheExample from "@examples/cache/chat_models/upstash_redis.ts";
+
+<CodeBlock language="typescript">{UpstashRedisCacheExample}</CodeBlock>
+
+You can also directly pass in a previously created [@upstash/redis](https://docs.upstash.com/redis/sdks/javascriptsdk/overview) client instance:
+
+import AdvancedUpstashRedisCacheExample from "@examples/cache/chat_models/upstash_redis_advanced.ts";
+
+<CodeBlock language="typescript">{AdvancedUpstashRedisCacheExample}</CodeBlock>
+
+## Caching with Vercel KV
+
+LangChain provides an Vercel KV-based cache. Like the Redis-based cache, this cache is useful if you want to share the cache across multiple processes or servers. The Vercel KV client uses HTTP and supports edge environments. To use it, you'll need to install the `@vercel/kv` package:
+
+```bash npm2yarn
+npm install @vercel/kv
+```
+
+You'll also need an Vercel account and a [KV database](https://vercel.com/docs/storage/vercel-kv/kv-reference) to connect to. Once you've done that, retrieve your REST URL and REST token.
+
+Then, you can pass a `cache` option when you instantiate the LLM. For example:
+
+import VercelKVCacheExample from "@examples/cache/chat_models/vercel_kv.ts";
+
+<CodeBlock language="typescript">{VercelKVCacheExample}</CodeBlock>
+
+## Caching with Cloudflare KV
+
+:::info
+This integration is only supported in Cloudflare Workers.
+:::
+
+If you're deploying your project as a Cloudflare Worker, you can use LangChain's Cloudflare KV-powered LLM cache.
+
+For information on how to set up KV in Cloudflare, see [the official documentation](https://developers.cloudflare.com/kv/).
+
+**Note:** If you are using TypeScript, you may need to install types if they aren't already present:
+
+```bash npm2yarn
+npm install -S @cloudflare/workers-types
+```
+
+import CloudflareExample from "@examples/cache/chat_models/cloudflare_kv.ts";
+
+<CodeBlock language="typescript">{CloudflareExample}</CodeBlock>
+
 ## Caching on the File System
 
 :::warning

diff --git a/docs/core_docs/docs/how_to/debugging.mdx b/docs/core_docs/docs/how_to/debugging.mdx
@@ -16,8 +16,8 @@ The best way to do this is with [LangSmith](https://smith.langchain.com).
 After you sign up at the link above, make sure to set your environment variables to start logging traces:
 
 ```shell
-export LANGCHAIN_TRACING_V2="true"
-export LANGCHAIN_API_KEY="..."
+export LANGSMITH_TRACING="true"
+export LANGSMITH_API_KEY="..."
 
 # Reduce tracing latency if you are not in a serverless environment
 # export LANGCHAIN_CALLBACKS_BACKGROUND=true

diff --git a/docs/core_docs/docs/how_to/graph_constructing.ipynb b/docs/core_docs/docs/how_to/graph_constructing.ipynb
@@ -41,7 +41,7 @@
         "\n",
         "# Optional, use LangSmith for best-in-class observability\n",
         "LANGSMITH_API_KEY=your-api-key\n",
-        "LANGCHAIN_TRACING_V2=true\n",
+        "LANGSMITH_TRACING=true\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/graph_mapping.ipynb b/docs/core_docs/docs/how_to/graph_mapping.ipynb
@@ -40,7 +40,7 @@
         "\n",
         "# Optional, use LangSmith for best-in-class observability\n",
         "LANGSMITH_API_KEY=your-api-key\n",
-        "LANGCHAIN_TRACING_V2=true\n",
+        "LANGSMITH_TRACING=true\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/graph_prompting.ipynb b/docs/core_docs/docs/how_to/graph_prompting.ipynb
@@ -49,7 +49,7 @@
         "\n",
         "# Optional, use LangSmith for best-in-class observability\n",
         "LANGSMITH_API_KEY=your-api-key\n",
-        "LANGCHAIN_TRACING_V2=true\n",
+        "LANGSMITH_TRACING=true\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/graph_semantic.ipynb b/docs/core_docs/docs/how_to/graph_semantic.ipynb
@@ -56,7 +56,7 @@
         "\n",
         "# Optional, use LangSmith for best-in-class observability\n",
         "LANGSMITH_API_KEY=your-api-key\n",
-        "LANGCHAIN_TRACING_V2=true\n",
+        "LANGSMITH_TRACING=true\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/llm_caching.mdx b/docs/core_docs/docs/how_to/llm_caching.mdx
@@ -161,6 +161,22 @@ import AdvancedUpstashRedisCacheExample from "@examples/cache/upstash_redis_adva
 
 <CodeBlock language="typescript">{AdvancedUpstashRedisCacheExample}</CodeBlock>
 
+## Caching with Vercel KV
+
+LangChain provides an Vercel KV-based cache. Like the Redis-based cache, this cache is useful if you want to share the cache across multiple processes or servers. The Vercel KV client uses HTTP and supports edge environments. To use it, you'll need to install the `@vercel/kv` package:
+
+```bash npm2yarn
+npm install @vercel/kv
+```
+
+You'll also need an Vercel account and a [KV database](https://vercel.com/docs/storage/vercel-kv/kv-reference) to connect to. Once you've done that, retrieve your REST URL and REST token.
+
+Then, you can pass a `cache` option when you instantiate the LLM. For example:
+
+import VercelKVCacheExample from "@examples/cache/vercel_kv.ts";
+
+<CodeBlock language="typescript">{VercelKVCacheExample}</CodeBlock>
+
 ## Caching with Cloudflare KV
 
 :::info

diff --git a/docs/core_docs/docs/how_to/migrate_agent.ipynb b/docs/core_docs/docs/how_to/migrate_agent.ipynb
@@ -57,10 +57,10 @@
         "// process.env.OPENAI_API_KEY = \"...\";\n",
         "\n",
         "// Optional, add tracing in LangSmith\n",
-        "// process.env.LANGCHAIN_API_KEY = \"ls...\";\n",
+        "// process.env.LANGSMITH_API_KEY = \"ls...\";\n",
         "// process.env.LANGCHAIN_CALLBACKS_BACKGROUND = \"true\";\n",
-        "// process.env.LANGCHAIN_TRACING_V2 = \"true\";\n",
-        "// process.env.LANGCHAIN_PROJECT = \"How to migrate: LangGraphJS\";\n",
+        "// process.env.LANGSMITH_TRACING = \"true\";\n",
+        "// process.env.LANGSMITH_PROJECT = \"How to migrate: LangGraphJS\";\n",
         "\n",
         "// Reduce tracing latency if you are not in a serverless environment\n",
         "// process.env.LANGCHAIN_CALLBACKS_BACKGROUND = \"true\";"
@@ -1337,4 +1337,4 @@
   },
   "nbformat": 4,
   "nbformat_minor": 5
-}
+}
diff --git a/docs/core_docs/docs/how_to/qa_chat_history_how_to.ipynb b/docs/core_docs/docs/how_to/qa_chat_history_how_to.ipynb
@@ -63,8 +63,8 @@
         "\n",
         "\n",
         "```bash\n",
-        "export LANGCHAIN_TRACING_V2=true\n",
-        "export LANGCHAIN_API_KEY=YOUR_KEY\n",
+        "export LANGSMITH_TRACING=true\n",
+        "export LANGSMITH_API_KEY=YOUR_KEY\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# export LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/qa_citations.ipynb b/docs/core_docs/docs/how_to/qa_citations.ipynb
@@ -55,8 +55,8 @@
         "\n",
         "\n",
         "```bash\n",
-        "export LANGCHAIN_TRACING_V2=true\n",
-        "export LANGCHAIN_API_KEY=YOUR_KEY\n",
+        "export LANGSMITH_TRACING=true\n",
+        "export LANGSMITH_API_KEY=YOUR_KEY\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# export LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/qa_per_user.ipynb b/docs/core_docs/docs/how_to/qa_per_user.ipynb
@@ -88,7 +88,7 @@
         "\n",
         "# Optional, use LangSmith for best-in-class observability\n",
         "LANGSMITH_API_KEY=your-api-key\n",
-        "LANGCHAIN_TRACING_V2=true\n",
+        "LANGSMITH_TRACING=true\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/qa_sources.ipynb b/docs/core_docs/docs/how_to/qa_sources.ipynb
@@ -53,8 +53,8 @@
         "\n",
         "\n",
         "```bash\n",
-        "export LANGCHAIN_TRACING_V2=true\n",
-        "export LANGCHAIN_API_KEY=YOUR_KEY\n",
+        "export LANGSMITH_TRACING=true\n",
+        "export LANGSMITH_API_KEY=YOUR_KEY\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# export LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/qa_streaming.ipynb b/docs/core_docs/docs/how_to/qa_streaming.ipynb
@@ -53,8 +53,8 @@
         "\n",
         "\n",
         "```bash\n",
-        "export LANGCHAIN_TRACING_V2=true\n",
-        "export LANGCHAIN_API_KEY=YOUR_KEY\n",
+        "export LANGSMITH_TRACING=true\n",
+        "export LANGSMITH_API_KEY=YOUR_KEY\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# export LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/query_few_shot.ipynb b/docs/core_docs/docs/how_to/query_few_shot.ipynb
@@ -45,7 +45,7 @@
     "```\n",
     "# Optional, use LangSmith for best-in-class observability\n",
     "LANGSMITH_API_KEY=your-api-key\n",
-    "LANGCHAIN_TRACING_V2=true\n",
+    "LANGSMITH_TRACING=true\n",
     "\n",
     "# Reduce tracing latency if you are not in a serverless environment\n",
     "# LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/query_high_cardinality.ipynb b/docs/core_docs/docs/how_to/query_high_cardinality.ipynb
@@ -47,7 +47,7 @@
         "```\n",
         "# Optional, use LangSmith for best-in-class observability\n",
         "LANGSMITH_API_KEY=your-api-key\n",
-        "LANGCHAIN_TRACING_V2=true\n",
+        "LANGSMITH_TRACING=true\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/query_multiple_queries.ipynb b/docs/core_docs/docs/how_to/query_multiple_queries.ipynb
@@ -45,7 +45,7 @@
         "\n",
         "# Optional, use LangSmith for best-in-class observability\n",
         "LANGSMITH_API_KEY=your-api-key\n",
-        "LANGCHAIN_TRACING_V2=true\n",
+        "LANGSMITH_TRACING=true\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/query_multiple_retrievers.ipynb b/docs/core_docs/docs/how_to/query_multiple_retrievers.ipynb
@@ -45,7 +45,7 @@
         "\n",
         "# Optional, use LangSmith for best-in-class observability\n",
         "LANGSMITH_API_KEY=your-api-key\n",
-        "LANGCHAIN_TRACING_V2=true\n",
+        "LANGSMITH_TRACING=true\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/query_no_queries.ipynb b/docs/core_docs/docs/how_to/query_no_queries.ipynb
@@ -47,7 +47,7 @@
         "\n",
         "# Optional, use LangSmith for best-in-class observability\n",
         "LANGSMITH_API_KEY=your-api-key\n",
-        "LANGCHAIN_TRACING_V2=true\n",
+        "LANGSMITH_TRACING=true\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/how_to/sql_large_db.mdx b/docs/core_docs/docs/how_to/sql_large_db.mdx
@@ -23,8 +23,8 @@ npm install langchain @langchain/community @langchain/openai typeorm sqlite3
 ```bash
 export OPENAI_API_KEY="your api key"
 # Uncomment the below to use LangSmith. Not required.
-# export LANGCHAIN_API_KEY="your api key"
-# export LANGCHAIN_TRACING_V2=true
+# export LANGSMITH_API_KEY="your api key"
+# export LANGSMITH_TRACING=true
 
 # Reduce tracing latency if you are not in a serverless environment
 # export LANGCHAIN_CALLBACKS_BACKGROUND=true

diff --git a/docs/core_docs/docs/how_to/sql_prompting.mdx b/docs/core_docs/docs/how_to/sql_prompting.mdx
@@ -22,8 +22,8 @@ npm install @langchain/community @langchain/openai typeorm sqlite3
 ```bash
 export OPENAI_API_KEY="your api key"
 # Uncomment the below to use LangSmith. Not required.
-# export LANGCHAIN_API_KEY="your api key"
-# export LANGCHAIN_TRACING_V2=true
+# export LANGSMITH_API_KEY="your api key"
+# export LANGSMITH_TRACING=true
 
 # Reduce tracing latency if you are not in a serverless environment
 # export LANGCHAIN_CALLBACKS_BACKGROUND=true

diff --git a/docs/core_docs/docs/how_to/sql_query_checking.mdx b/docs/core_docs/docs/how_to/sql_query_checking.mdx
@@ -26,8 +26,8 @@ npm install @langchain/community @langchain/openai typeorm sqlite3
 ```bash
 export OPENAI_API_KEY="your api key"
 # Uncomment the below to use LangSmith. Not required.
-# export LANGCHAIN_API_KEY="your api key"
-# export LANGCHAIN_TRACING_V2=true
+# export LANGSMITH_API_KEY="your api key"
+# export LANGSMITH_TRACING=true
 
 # Reduce tracing latency if you are not in a serverless environment
 # export LANGCHAIN_CALLBACKS_BACKGROUND=true

diff --git a/docs/core_docs/docs/how_to/tools_prompting.ipynb b/docs/core_docs/docs/how_to/tools_prompting.ipynb
@@ -52,7 +52,7 @@
         "```\n",
         "# Optional, use LangSmith for best-in-class observability\n",
         "LANGSMITH_API_KEY=your-api-key\n",
-        "LANGCHAIN_TRACING_V2=true\n",
+        "LANGSMITH_TRACING=true\n",
         "\n",
         "# Reduce tracing latency if you are not in a serverless environment\n",
         "# LANGCHAIN_CALLBACKS_BACKGROUND=true\n",

diff --git a/docs/core_docs/docs/integrations/chat/anthropic.ipynb b/docs/core_docs/docs/integrations/chat/anthropic.ipynb
@@ -55,8 +55,8 @@
         "If you want to get automated tracing of your model calls you can also set your [LangSmith](https://docs.smith.langchain.com/) API key by uncommenting below:\n",
         "\n",
         "```bash\n",
-        "# export LANGCHAIN_TRACING_V2=\"true\"\n",
-        "# export LANGCHAIN_API_KEY=\"your-api-key\"\n",
+        "# export LANGSMITH_TRACING=\"true\"\n",
+        "# export LANGSMITH_API_KEY=\"your-api-key\"\n",
         "```\n",
         "\n",
         "### Installation\n",

diff --git a/docs/core_docs/docs/integrations/chat/azure.ipynb b/docs/core_docs/docs/integrations/chat/azure.ipynb
@@ -66,8 +66,8 @@
         "If you want to get automated tracing of your model calls you can also set your [LangSmith](https://docs.smith.langchain.com/) API key by uncommenting below:\n",
         "\n",
         "```bash\n",
-        "# export LANGCHAIN_TRACING_V2=\"true\"\n",
-        "# export LANGCHAIN_API_KEY=\"your-api-key\"\n",
+        "# export LANGSMITH_TRACING=\"true\"\n",
+        "# export LANGSMITH_API_KEY=\"your-api-key\"\n",
         "```\n",
         "\n",
         "### Installation\n",

diff --git a/docs/core_docs/docs/integrations/chat/bedrock.ipynb b/docs/core_docs/docs/integrations/chat/bedrock.ipynb
@@ -57,8 +57,8 @@
         "If you want to get automated tracing of your model calls you can also set your [LangSmith](https://docs.smith.langchain.com/) API key by uncommenting below:\n",
         "\n",
         "```bash\n",
-        "# export LANGCHAIN_TRACING_V2=\"true\"\n",
-        "# export LANGCHAIN_API_KEY=\"your-api-key\"\n",
+        "# export LANGSMITH_TRACING=\"true\"\n",
+        "# export LANGSMITH_API_KEY=\"your-api-key\"\n",
         "```\n",
         "\n",
         "### Installation\n",

diff --git a/docs/core_docs/docs/integrations/chat/bedrock_converse.ipynb b/docs/core_docs/docs/integrations/chat/bedrock_converse.ipynb
@@ -51,8 +51,8 @@
         "If you want to get automated tracing of your model calls you can also set your [LangSmith](https://docs.smith.langchain.com/) API key by uncommenting below:\n",
         "\n",
         "```bash\n",
-        "# export LANGCHAIN_TRACING_V2=\"true\"\n",
-        "# export LANGCHAIN_API_KEY=\"your-api-key\"\n",
+        "# export LANGSMITH_TRACING=\"true\"\n",
+        "# export LANGSMITH_API_KEY=\"your-api-key\"\n",
         "```\n",
         "\n",
         "### Installation\n",