docs: link components to docs pages (#8850)

* docs-links

* Update url.py

---------

Co-authored-by: Edwin Jose <edwin.jose@datastax.com>

src/backend/base/langflow/components/agents/mcp_component.py

@@ -94,6 +94,7 @@ class MCPToolsComponent(ComponentWithCache):
 
     display_name = "MCP Tools"
     description = "Connect to an MCP server to use its tools."
+    documentation: str = "https://docs.langflow.org/mcp-client"
     icon = "Mcp"
     name = "MCPTools"
 

src/backend/base/langflow/components/data/api_request.py

@@ -45,6 +45,7 @@ DEFAULT_FIELDS = ["mode"]
 class APIRequestComponent(Component):
     display_name = "API Request"
     description = "Make HTTP requests using URL or cURL commands."
+    documentation: str = "https://docs.langflow.org/components-data#api-request"
     icon = "Globe"
     name = "APIRequest"
 

src/backend/base/langflow/components/data/directory.py

@@ -9,6 +9,7 @@ from langflow.template.field.base import Output
 class DirectoryComponent(Component):
     display_name = "Directory"
     description = "Recursively load files from a directory."
+    documentation: str = "https://docs.langflow.org/components-data#directory"
     icon = "folder"
     name = "Directory"
 

src/backend/base/langflow/components/data/file.py

@@ -16,6 +16,7 @@ class FileComponent(BaseFileComponent):
 
     display_name = "File"
     description = "Loads content from one or more files as a DataFrame."
+    documentation: str = "https://docs.langflow.org/components-data#file"
     icon = "file-text"
     name = "File"
 

src/backend/base/langflow/components/data/news_search.py

@@ -12,6 +12,7 @@ from langflow.schema import DataFrame
 class NewsSearchComponent(Component):
     display_name = "News Search"
     description = "Searches Google News via RSS. Returns clean article data."
+    documentation: str = "https://docs.langflow.org/components-data#news-search"
     icon = "newspaper"
     name = "NewsSearch"
 

src/backend/base/langflow/components/data/rss.py

@@ -11,6 +11,7 @@ from langflow.schema import DataFrame
 class RSSReaderComponent(Component):
     display_name = "RSS Reader"
     description = "Fetches and parses an RSS feed."
+    documentation: str = "https://docs.langflow.org/components-data#rss-reader"
     icon = "rss"
     name = "RSSReaderSimple"
 

src/backend/base/langflow/components/data/sql_executor.py

@@ -18,6 +18,7 @@ class SQLComponent(ComponentWithCache):
 
     display_name = "SQL Database"
     description = "Executes SQL queries on SQLAlchemy-compatible databases."
+    documentation: str = "https://docs.langflow.org/components-data#sql-database"
     icon = "database"
     name = "SQLComponent"
     metadata = {"keywords": ["sql", "database", "query", "db", "fetch"]}

src/backend/base/langflow/components/data/url.py

@@ -41,6 +41,7 @@ class URLComponent(Component):
 
     display_name = "URL"
     description = "Fetch content from one or more web pages, following links recursively."
+    documentation: str = "https://docs.langflow.org/components-data#url"
     icon = "layout-template"
     name = "URLComponent"
 

src/backend/base/langflow/components/data/web_search.py

@@ -14,6 +14,7 @@ from langflow.services.deps import get_settings_service
 class WebSearchComponent(Component):
     display_name = "Web Search"
     description = "Performs a basic DuckDuckGo search (HTML scraping). May be subject to rate limits."
+    documentation: str = "https://docs.langflow.org/components-data#web-search"
     icon = "search"
     name = "WebSearchNoAPI"
 

src/backend/base/langflow/components/data/webhook.py

@@ -7,6 +7,7 @@ from langflow.schema.data import Data
 
 class WebhookComponent(Component):
     display_name = "Webhook"
+    documentation: str = "https://docs.langflow.org/components-data#webhook"
     name = "Webhook"
     icon = "webhook"
 

src/backend/base/langflow/components/helpers/calculator_core.py

@@ -11,6 +11,7 @@ from langflow.schema.data import Data
 class CalculatorComponent(Component):
     display_name = "Calculator"
     description = "Perform basic arithmetic operations on a given expression."
+    documentation: str = "https://docs.langflow.org/components-helpers#calculator"
     icon = "calculator"
 
     # Cache operators dictionary as a class variable

src/backend/base/langflow/components/helpers/current_date.py

@@ -11,6 +11,7 @@ from langflow.schema.message import Message
 class CurrentDateComponent(Component):
     display_name = "Current Date"
     description = "Returns the current date and time in the selected timezone."
+    documentation: str = "https://docs.langflow.org/components-helpers#current-date"
     icon = "clock"
     name = "CurrentDate"
 

src/backend/base/langflow/components/helpers/memory.py

@@ -16,6 +16,7 @@ from langflow.utils.constants import MESSAGE_SENDER_AI, MESSAGE_SENDER_NAME_AI,
 class MemoryComponent(Component):
     display_name = "Message History"
     description = "Stores or retrieves stored chat messages from Langflow tables or an external memory."
+    documentation: str = "https://docs.langflow.org/components-helpers#message-history"
     icon = "message-square-more"
     name = "Memory"
     default_keys = ["mode", "memory"]

src/backend/base/langflow/components/input_output/chat.py

@@ -19,6 +19,7 @@ from langflow.utils.constants import (
 class ChatInput(ChatComponent):
     display_name = "Chat Input"
     description = "Get chat inputs from the Playground."
+    documentation: str = "https://docs.langflow.org/components-io#chat-input"
     icon = "MessagesSquare"
     name = "ChatInput"
     minimized = True

src/backend/base/langflow/components/input_output/chat_output.py

@@ -22,6 +22,7 @@ from langflow.utils.constants import (
 class ChatOutput(ChatComponent):
     display_name = "Chat Output"
     description = "Display a chat message in the Playground."
+    documentation: str = "https://docs.langflow.org/components-io#chat-output"
     icon = "MessagesSquare"
     name = "ChatOutput"
     minimized = True

src/backend/base/langflow/components/input_output/text.py

@@ -6,6 +6,7 @@ from langflow.schema.message import Message
 class TextInputComponent(TextComponent):
     display_name = "Text Input"
     description = "Get user text inputs."
+    documentation: str = "https://docs.langflow.org/components-io#text-input"
     icon = "type"
     name = "TextInput"
 

src/backend/base/langflow/components/input_output/text_output.py

@@ -6,6 +6,7 @@ from langflow.schema.message import Message
 class TextOutputComponent(TextComponent):
     display_name = "Text Output"
     description = "Sends text output via API."
+    documentation: str = "https://docs.langflow.org/components-io#text-output"
     icon = "type"
     name = "TextOutput"
 

src/backend/base/langflow/components/logic/conditional_router.py

@@ -8,6 +8,7 @@ from langflow.schema.message import Message
 class ConditionalRouterComponent(Component):
     display_name = "If-Else"
     description = "Routes an input message to a corresponding output based on text comparison."
+    documentation: str = "https://docs.langflow.org/components-logic#conditional-router-if-else-component"
     icon = "split"
     name = "ConditionalRouter"
 

src/backend/base/langflow/components/logic/loop.py

@@ -10,6 +10,7 @@ class LoopComponent(Component):
     description = (
         "Iterates over a list of Data objects, outputting one item at a time and aggregating results from loop inputs."
     )
+    documentation: str = "https://docs.langflow.org/components-logic#loop"
     icon = "infinity"
 
     inputs = [

src/backend/base/langflow/components/logic/run_flow.py

@@ -13,6 +13,7 @@ class RunFlowComponent(RunFlowBaseComponent):
         "Creates a tool component from a Flow that takes all its inputs and runs it. "
         " \n **Select a Flow to use the tool mode**"
     )
+    documentation: str = "https://docs.langflow.org/components-logic#run-flow"
     beta = True
     name = "RunFlow"
     icon = "Workflow"