Connector Catalog

Connectors are the blocks you drag onto a Flow canvas to perform each step of an automation: call an API, read a file, query a database, branch on a condition, send a message.

Every page in this catalog follows the same structure — overview, prerequisites, authentication, configuration fields, practical examples, and common errors — so you can quickly find what you need on any connector.

Triggers

Start the execution of a Flow.

Connector	What it does
HTTP	Exposes a REST endpoint that fires the flow when called (also works as an outbound call).
Scheduler	Fires the flow at scheduled times, via a cron expression.
Event	Publishes and consumes events between flows (publish/subscribe pattern).
WhatsApp	Fires the flow when a WhatsApp message is received.

Databases

Connector	What it does
SQL Connector	Runs SQL queries against relational databases (via JDBC).
MongoDB	Finds, inserts, updates, removes, and aggregates documents in a collection.
Qdrant	Stores and searches embeddings in a vector database (RAG, similarity).

APIs, web, and data transformation

Connector	What it does
HTTP	Makes REST calls to external systems.
Jolt	Transforms one JSON into another shape via a Jolt specification.
JSON Validator	Validates the message against a JSON Schema before it moves on.
XML to JSON	Converts XML content into JSON.
HTML to Text	Converts HTML into plain text or Markdown.

Google Workspace

Connector	What it does
Google Sheets	Creates spreadsheets and reads, updates, appends, or clears data.
Google Calendar	Creates, lists, updates, and removes events, including Meet meetings.
Google Cloud Storage	Uploads, downloads, lists, and removes files in a bucket.

Messaging and communication

Connector	What it does
WhatsApp	Receives and sends messages through the WhatsApp Cloud API (Meta).
Email	Sends emails via SMTP, in plain text or HTML.
Event	Lets flows talk to each other through named events.

Files and documents

Connector	What it does
PDF Reader	Extracts text, converts pages to images, or reads PDF metadata.
DOCX Reader	Extracts text and metadata from Word files, or fills in templates.
Excel Reader	Reads .xlsx spreadsheets row by row, without loading everything into memory.
TXT Reader	Reads the contents of a plain text file.
Markdown to DOCX	Converts Markdown into a Word document.
File Writer	Writes text into a new file for the next steps.
File to Base64	Converts a file into a Base64 string for transport inside JSON.

Security and data

Connector	What it does
JWT	Creates, validates, encrypts, and decrypts JWT tokens.
Vault Connector	Reads and writes secrets in a HashiCorp Vault or OpenBao KV engine.
Embedding	Turns text into a numeric vector for semantic search.

AI, code, and automation

Connector	What it does
AI Agent	Runs an AI agent that reasons and uses other components as tools.
Script	Runs custom MVEL code for logic the built-in connectors don't cover.
RPA Connector	Automates a Chrome browser for systems that expose no API.

Templates and formatting

Connector	What it does
Message Formatter	Builds text from a template using data from the message.
Freemarker	Builds text with FreeMarker templates (conditions, loops, formatting).

Flow logic

Connector	What it does
Choice	Conditional branch: takes one path or the other based on a condition.
ForEach	Repeats a set of steps for each item in a list.
Add Variable	Creates reusable variables during the execution.
Local Storage	Stores key/value pairs in memory, per execution or per application.
Function	Marks the start of a reusable sub-flow.
Function Caller	Calls a sub-flow registered by a Function.