Merge branch 'release/0.0.6'

v

CHANGELOG.md

@@ -0,0 +1,46 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [0.0.6] - 2025-05-13
+
+### Added
+
+- Initial public release of Evo AI platform
+- FastAPI-based backend API
+- JWT authentication with email verification
+- Agent management (LLM, A2A, Sequential, Parallel, Loop, Workflow)
+- Agent 2 Agent (A2A) protocol support (Google A2A spec)
+- MCP server integration and management
+- Custom tools management for agents
+- Folder-based agent organization
+- Secure API key management with encryption
+- PostgreSQL and Redis integration
+- Email notifications (SendGrid) with Jinja2 templates
+- Audit log system for administrative actions
+- LangGraph integration for workflow agents
+- OpenTelemetry tracing and Langfuse integration
+- Docker and Docker Compose support
+- English documentation and codebase
+
+### Changed
+
+- N/A
+
+### Fixed
+
+- N/A
+
+### Security
+
+- JWT tokens with expiration and resource-based access control
+- Secure password hashing (bcrypt)
+- Account lockout after multiple failed login attempts
+- Email verification and password reset flows
+
+---
+
+Older versions and future releases will be listed here.

LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+5.  Submission of Contributions. Unless You explicitly state otherwise,
+    any Contribution intentionally submitted for inclusion in the Work
+    by You to the Licensor shall be under the terms and conditions of
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+    the terms of any separate license agreement you may have executed
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+
+6.  Trademarks. This License does not grant permission to use the trade
+    names, trademarks, service marks, or product names of the Licensor,
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+
+7.  Disclaimer of Warranty. Unless required by applicable law or
+    agreed to in writing, Licensor provides the Work (and each
+    Contributor provides its Contributions) on an "AS IS" BASIS,
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+    whether in tort (including negligence), contract, or otherwise,
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+
+9.  Accepting Warranty or Additional Liability. While redistributing
+    the Work or Derivative Works thereof, You may choose to offer,
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+    License. However, in accepting such obligations, You may act only
+    on Your own behalf and on Your sole responsibility, not on behalf
+    of any other Contributor, and only if You agree to indemnify,
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+    of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
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+
+Copyright 2025 Evolution API
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

README.md

@@ -1,5 +1,7 @@
 # Evo AI - AI Agents Platform
 
+> **License:** This project is licensed under the [Apache License 2.0](./LICENSE). The use of the "Evolution API" trademark is protected as described in section 6 (Trademarks) of the license.
+
 Evo AI is an open-source platform for creating and managing AI agents, enabling integration with different AI models and services.
 
 ## 🚀 Overview
@@ -301,6 +303,51 @@ Authorization: Bearer your-token-jwt
 - **LangGraph**: Framework for building stateful, multi-agent workflows
 - **ReactFlow**: Library for building node-based visual workflows
 
+## 📊 Langfuse Integration (Tracing & Observability)
+
+Evo AI platform natively supports integration with [Langfuse](https://langfuse.com/) for detailed tracing of agent executions, prompts, model responses, and tool calls, using the OpenTelemetry (OTel) standard.
+
+### Why use Langfuse?
+
+- Visual dashboard for agent traces, prompts, and executions
+- Detailed analytics for debugging and evaluating LLM apps
+- Easy integration with Google ADK and other frameworks
+
+### How it works
+
+- Every agent execution (including streaming) is automatically traced via OpenTelemetry spans
+- Data is sent to Langfuse, where it can be visualized and analyzed
+
+### How to configure
+
+1. **Set environment variables in your `.env`:**
+
+   ```env
+   LANGFUSE_PUBLIC_KEY="pk-lf-..."   # Your Langfuse public key
+   LANGFUSE_SECRET_KEY="sk-lf-..."   # Your Langfuse secret key
+   OTEL_EXPORTER_OTLP_ENDPOINT="https://cloud.langfuse.com/api/public/otel" # (or us.cloud... for US region)
+   ```
+
+   > **Attention:** Do not swap the keys! `pk-...` is public, `sk-...` is secret.
+
+2. **Automatic initialization**
+
+   - Tracing is automatically initialized when the application starts (`src/main.py`).
+   - Agent execution functions are already instrumented with spans (`src/services/agent_runner.py`).
+
+3. **View in the Langfuse dashboard**
+   - Access your Langfuse dashboard to see real-time traces.
+
+### Troubleshooting
+
+- **401 Error (Invalid credentials):**
+  - Check if the keys are correct and not swapped in your `.env`.
+  - Make sure the endpoint matches your region (EU or US).
+- **Context error in async generator:**
+  - The code is already adjusted to avoid OpenTelemetry context issues in async generators.
+- **Questions about integration:**
+  - See the [official Langfuse documentation - Google ADK](https://langfuse.com/docs/integrations/google-adk)
+
 ## 🤖 Agent 2 Agent (A2A) Protocol Support
 
 Evo AI implements the Google's Agent 2 Agent (A2A) protocol, enabling seamless communication and interoperability between AI agents. This implementation includes:
@@ -398,7 +445,7 @@ You'll also need the following accounts/API keys:
 1. Clone the repository:
 
 ```bash
-git clone https://github.com/your-username/evo-ai.git
+git clone https://github.com/EvolutionAPI/evo-ai.git
 cd evo-ai
 ```
 
@@ -446,6 +493,21 @@ make alembic-upgrade
 make seed-all
 ```
 
+## 🖥️ Frontend Installation
+
+After installing Evo AI (the backend), you need to install the frontend to access the web interface:
+
+1. Clone the frontend repository:
+
+```bash
+git clone https://github.com/EvolutionAPI/evo-ai-frontend.git
+cd evo-ai-frontend
+```
+
+2. Follow the installation instructions in the frontend repository's README to set up and run the web interface.
+
+> The backend (API) and frontend are separate projects. Make sure both are running for full platform functionality.
+
 ## 🚀 Getting Started
 
 After installation, follow these steps to set up your first agent:
@@ -620,15 +682,17 @@ Please read our [Contributing Guidelines](CONTRIBUTING.md) for more details.
 
 ## 📄 License
 
-This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
+This project is licensed under the [Apache License 2.0](./LICENSE).
+
+The use of the name, logo, or trademark "Evolution API" is protected and not automatically granted by the license. See section 6 (Trademarks) of the license for details about trademark usage.
 
 ## 📊 Stargazers
 
-[![Stargazers repo roster for @your-username/evo-ai](https://reporoster.com/stars/your-username/evo-ai)](https://github.com/your-username/evo-ai/stargazers)
+[![Stargazers repo roster for @EvolutionAPI/evo-ai](https://reporoster.com/stars/EvolutionAPI/evo-ai)](https://github.com/EvolutionAPI/evo-ai/stargazers)
 
 ## 🔄 Forks
 
-[![Forkers repo roster for @your-username/evo-ai](https://reporoster.com/forks/your-username/evo-ai)](https://github.com/your-username/evo-ai/network/members)
+[![Forkers repo roster for @EvolutionAPI/evo-ai](https://reporoster.com/forks/EvolutionAPI/evo-ai)](https://github.com/EvolutionAPI/evo-ai/network/members)
 
 ## 🙏 Acknowledgments
 

pyproject.toml

@@ -11,11 +11,11 @@ authors = [
     {name = "EvoAI Team", email = "admin@evoai.com"}
 ]
 requires-python = ">=3.10"
-license = {text = "Proprietary"}
+license = {text = "Apache-2.0"}
 classifiers = [
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.10",
-    "License :: Other/Proprietary License",
+    "License :: OSI Approved :: Apache Software License",
     "Operating System :: OS Independent",
 ]
 

src/api/auth_routes.py

@@ -54,8 +54,7 @@ async def register_user(user_data: UserCreate, db: Session = Depends(get_db)):
     Raises:
         HTTPException: If there is an error in registration
     """
-    # TODO: remover o auto_verify temporariamente para teste
-    user, message = create_user(db, user_data, is_admin=False, auto_verify=True)
+    user, message = create_user(db, user_data, is_admin=False, auto_verify=False)
     if not user:
         logger.error(f"Error registering user: {message}")
         raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=message)

src/services/a2a_task_manager.py

@@ -3,6 +3,7 @@ import asyncio
 from collections.abc import AsyncIterable
 from typing import Dict, Optional
 from uuid import UUID
+import json
 
 from sqlalchemy.orm import Session
 
@@ -306,7 +307,7 @@ class A2ATaskManager:
             external_id = task_params.sessionId
             full_response = ""
 
-            # We use the same streaming function used in the WebSocket
+            # Use the same pattern as chat_routes.py: deserialize each chunk
             async for chunk in run_agent_stream(
                 agent_id=str(agent.id),
                 external_id=external_id,
@@ -316,9 +317,14 @@ class A2ATaskManager:
                 memory_service=memory_service,
                 db=self.db,
             ):
-                # Send incremental progress updates
-                update_text_part = {"type": "text", "text": chunk}
-                update_message = Message(role="agent", parts=[update_text_part])
+                try:
+                    chunk_data = json.loads(chunk)
+                except Exception as e:
+                    logger.warning(f"Invalid chunk received: {chunk} - {e}")
+                    continue
+
+                # The chunk_data must be a dict with 'type' and 'text' (or other expected format)
+                update_message = Message(role="agent", parts=[chunk_data])
 
                 # Update the task with each intermediate message
                 await self.update_store(
@@ -337,24 +343,24 @@ class A2ATaskManager:
                         final=False,
                     ),
                 )
-                full_response += chunk
+                # If it's text, accumulate for the final response
+                if chunk_data.get("type") == "text":
+                    full_response += chunk_data.get("text", "")
 
-            # Determine the task state
+            # Determine the final state of the task
             task_state = (
                 TaskState.INPUT_REQUIRED
                 if "MISSING_INFO:" in full_response
                 else TaskState.COMPLETED
             )
 
-            # Create the final response part
+            # Create the final response
             final_text_part = {"type": "text", "text": full_response}
             parts = [final_text_part]
             final_message = Message(role="agent", parts=parts)
-
-            # Create the final artifact from the final response
             final_artifact = Artifact(parts=parts, index=0)
 
-            # Update the task in the store with the final response
+            # Update the task with the final response
             await self.update_store(
                 task_params.id,
                 TaskStatus(state=task_state, message=final_message),

src/services/email_service.py

@@ -1,6 +1,5 @@
 import sendgrid
 from sendgrid.helpers.mail import Mail, Email, To, Content
-from src.config.settings import settings
 import logging
 from datetime import datetime
 from jinja2 import Environment, FileSystemLoader, select_autoescape
@@ -51,12 +50,12 @@ def send_verification_email(email: str, token: str) -> bool:
         bool: True if the email was sent successfully, False otherwise
     """
     try:
-        sg = sendgrid.SendGridAPIClient(api_key=settings.SENDGRID_API_KEY)
-        from_email = Email(settings.EMAIL_FROM)
+        sg = sendgrid.SendGridAPIClient(api_key=os.getenv("SENDGRID_API_KEY"))
+        from_email = Email(os.getenv("EMAIL_FROM"))
         to_email = To(email)
         subject = "Email Verification - Evo AI"
 
-        verification_link = f"{settings.APP_URL}/api/v1/auth/verify-email/{token}"
+        verification_link = f"{os.getenv('APP_URL')}/security/verify-email?code={token}"
 
         html_content = _render_template(
             "verification_email",
@@ -100,12 +99,12 @@ def send_password_reset_email(email: str, token: str) -> bool:
         bool: True if the email was sent successfully, False otherwise
     """
     try:
-        sg = sendgrid.SendGridAPIClient(api_key=settings.SENDGRID_API_KEY)
-        from_email = Email(settings.EMAIL_FROM)
+        sg = sendgrid.SendGridAPIClient(api_key=os.getenv("SENDGRID_API_KEY"))
+        from_email = Email(os.getenv("EMAIL_FROM"))
         to_email = To(email)
         subject = "Password Reset - Evo AI"
 
-        reset_link = f"{settings.APP_URL}/reset-password?token={token}"
+        reset_link = f"{os.getenv('APP_URL')}/security/reset-password?token={token}"
 
         html_content = _render_template(
             "password_reset",
@@ -149,12 +148,12 @@ def send_welcome_email(email: str, user_name: str = None) -> bool:
         bool: True if the email was sent successfully, False otherwise
     """
     try:
-        sg = sendgrid.SendGridAPIClient(api_key=settings.SENDGRID_API_KEY)
-        from_email = Email(settings.EMAIL_FROM)
+        sg = sendgrid.SendGridAPIClient(api_key=os.getenv("SENDGRID_API_KEY"))
+        from_email = Email(os.getenv("EMAIL_FROM"))
         to_email = To(email)
         subject = "Welcome to Evo AI"
 
-        dashboard_link = f"{settings.APP_URL}/dashboard"
+        dashboard_link = f"{os.getenv('APP_URL')}/dashboard"
 
         html_content = _render_template(
             "welcome_email",
@@ -200,12 +199,14 @@ def send_account_locked_email(
         bool: True if the email was sent successfully, False otherwise
     """
     try:
-        sg = sendgrid.SendGridAPIClient(api_key=settings.SENDGRID_API_KEY)
-        from_email = Email(settings.EMAIL_FROM)
+        sg = sendgrid.SendGridAPIClient(api_key=os.getenv("SENDGRID_API_KEY"))
+        from_email = Email(os.getenv("EMAIL_FROM"))
         to_email = To(email)
         subject = "Security Alert - Account Locked"
 
-        reset_link = f"{settings.APP_URL}/reset-password?token={reset_token}"
+        reset_link = (
+            f"{os.getenv('APP_URL')}/security/reset-password?token={reset_token}"
+        )
 
         html_content = _render_template(
             "account_locked",

src/services/user_service.py

@@ -7,7 +7,7 @@ from src.services.email_service import (
     send_verification_email,
     send_password_reset_email,
 )
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, timezone
 import uuid
 import logging
 from typing import Optional, Tuple
@@ -295,7 +295,11 @@ def reset_password(db: Session, token: str, new_password: str) -> Tuple[bool, st
             return False, "Invalid password reset token"
 
         # Check if the token has expired
-        if user.password_reset_expiry < datetime.utcnow():
+        now = datetime.now(timezone.utc)
+        expiry = user.password_reset_expiry
+        if expiry is not None and expiry.tzinfo is None:
+            expiry = expiry.replace(tzinfo=timezone.utc)
+        if expiry is None or expiry < now:
             logger.warning(
                 f"Attempt to reset password with expired token for user: {user.email}"
             )

src/templates/emails/base_email.html

@@ -1,83 +1,103 @@
 <!DOCTYPE html>
 <html>
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>{% block title %}Evo AI{% endblock %}</title>
     <style>
-        body { 
-            font-family: Arial, sans-serif; 
-            line-height: 1.6; 
-            margin: 0;
-            padding: 0;
-            background-color: #f7f7f7;
+      body {
+        font-family: "Segoe UI", Arial, sans-serif;
+        background-color: #f7f7f7;
+        color: #222;
+        margin: 0;
+        padding: 0;
+      }
+      .container {
+        max-width: 480px;
+        margin: 32px auto;
+        background: #fff;
+        border-radius: 12px;
+        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
+        padding: 0;
+        overflow: hidden;
+      }
+      .header {
+        background: #f7f7f7;
+        border-bottom: 1px solid #e5e5e5;
+        padding: 32px 0 16px 0;
+        text-align: center;
+      }
+      .header h1 {
+        color: #155a2c;
+        font-size: 2rem;
+        margin: 0;
+        letter-spacing: 1px;
+      }
+      .content {
+        padding: 32px 24px 24px 24px;
+      }
+      .button {
+        background: linear-gradient(90deg, #155a2c 0%, #1f7a3dff 100%);
+        color: #fff !important;
+        padding: 14px 0;
+        border-radius: 6px;
+        text-decoration: none;
+        display: block;
+        font-weight: bold;
+        text-align: center;
+        font-size: 1.1rem;
+        margin: 32px 0 0 0;
+        transition: filter 0.2s;
+        box-shadow: 0 2px 8px rgba(37, 99, 235, 0.08);
+      }
+      .button:hover {
+        filter: brightness(1.08);
+      }
+      .footer {
+        font-size: 12px;
+        text-align: center;
+        color: #888;
+        background: #f7f7f7;
+        border-top: 1px solid #e5e5e5;
+        padding: 20px 0 10px 0;
+      }
+      .link {
+        color: #155a2c;
+        text-decoration: underline;
+        word-break: break-all;
+      }
+      .warning {
+        color: #b91c1c;
+        background: #fee2e2;
+        border-radius: 4px;
+        padding: 12px;
+        margin-top: 20px;
+      }
+      @media (max-width: 600px) {
+        .container {
+          max-width: 98vw;
+          margin: 8px;
         }
-        .container { 
-            max-width: 600px; 
-            margin: 0 auto; 
-            padding: 20px;
-            background-color: #ffffff;
-            border-radius: 8px;
-            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
-        }
-        .header { 
-            background-color: #4A90E2; 
-            color: white; 
-            padding: 15px; 
-            text-align: center;
-            border-radius: 6px 6px 0 0;
-        }
-        .content { 
-            padding: 20px; 
-        }
-        .button { 
-            background-color: #4A90E2; 
-            color: white !important; 
-            padding: 12px 24px; 
-            text-decoration: none; 
-            border-radius: 4px; 
-            display: inline-block;
-            font-weight: bold;
-            text-align: center;
-            transition: background-color 0.3s;
-        }
-        .button:hover {
-            background-color: #3a7bc8;
-        }
-        .footer { 
-            font-size: 12px; 
-            text-align: center; 
-            margin-top: 30px; 
-            color: #888;
-            border-top: 1px solid #eee;
-            padding-top: 20px;
-        }
-        .link {
-            word-break: break-all;
-            color: #4A90E2;
-        }
-        .warning { 
-            color: #E74C3C;
-            padding: 10px;
-            background-color: #FADBD8;
-            border-radius: 4px;
-            margin-top: 20px;
+        .content {
+          padding: 18px 8px 16px 8px;
         }
+      }
     </style>
     {% block additional_styles %}{% endblock %}
-</head>
-<body>
+  </head>
+  <body>
     <div class="container">
-        <div class="header">
-            <h1>{% block header %}Evo AI{% endblock %}</h1>
-        </div>
-        <div class="content">
-            {% block content %}{% endblock %}
-        </div>
-        <div class="footer">
-            <p>{% block footer_message %}This is an automated email, please do not reply.{% endblock %}</p>
-            <p>&copy; {{ current_year }} Evo AI. All rights reserved.</p>
-        </div>
+      <div class="header">
+        <h1>{% block header %}Evo AI{% endblock %}</h1>
+      </div>
+      <div class="content">{% block content %}{% endblock %}</div>
+      <div class="footer">
+        <p>
+          {% block footer_message %}This is an automated email, please do not
+          reply.{% endblock %}
+        </p>
+        <p>&copy; {{ current_year }} Evo AI. All rights reserved.</p>
+      </div>
     </div>
-</body>
-</html> 
+  </body>
+</html>