# Uptrace MCP Server
Model Context Protocol (MCP) server for [Uptrace](https://uptrace.dev) observability platform. Provides tools for querying traces, spans, and errors through Claude Desktop or other MCP clients.
## Features
- 🔍 **Query error spans** - Get detailed error information with traces and stack traces
- 📊 **Query spans** - Filter and search spans using Uptrace Query Language (UQL)
- 🔗 **Trace visualization** - Get full trace trees with all related spans
- 📈 **Aggregations** - Group and aggregate spans by services, operations, etc.
- 📝 **Query logs** - Search and filter logs by severity, service, and custom UQL queries
- 📉 **Query metrics** - Query metrics using PromQL-compatible syntax
- 🏷️ **Service discovery** - List all services reporting telemetry data
- 📚 **Query syntax documentation** - Get comprehensive UQL syntax reference
## Installation
### Prerequisites
- Python 3.10 or higher
- Poetry (recommended) or pip
- Uptrace instance (self-hosted or cloud)
### Using Poetry (recommended)
```bash
cd uptrace-mcp
poetry install
```
### Using pip
```bash
pip install -e .
```
## Configuration
Create a `.env` file in the project root or set environment variables:
```bash
UPTRACE_URL=https://uptrace.xxx
UPTRACE_PROJECT_ID=3
UPTRACE_API_TOKEN=your_token_here
```
### Getting your Uptrace API token
1. Log in to your Uptrace instance
2. Go to your user profile
3. Navigate to "Auth Tokens" section
4. Create a new token with read access
**Note**: User auth tokens do not work with Single Sign-On (SSO). If using SSO, create a separate user account with API access.
## Usage
### As MCP Server
#### Cursor IDE
📖 **Detailed setup guide**: See [CURSOR_SETUP.md](CURSOR_SETUP.md) for comprehensive instructions.
To add this MCP server to Cursor:
1. Open Cursor Settings (Cmd+, on macOS or Ctrl+, on Windows/Linux)
2. Search for "MCP" or navigate to **Features** → **Model Context Protocol**
3. Click **Edit Config** or open the MCP configuration file directly
The configuration file location:
- **macOS**: `~/Library/Application Support/Cursor/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json`
- **Windows**: `%APPDATA%\Cursor\User\globalStorage\saoudrizwan.claude-dev\settings\cline_mcp_settings.json`
- **Linux**: `~/.config/Cursor/User/globalStorage/saoudrizwan.claude-dev\settings\cline_mcp_settings.json`
**Quick setup**: You can use the example configuration file `cursor-mcp-config.json.example` as a template. Copy it to your Cursor MCP settings file and update the paths and credentials.
**Important**: The `cwd` parameter specifies the working directory where the command will be executed. This must be the root directory of your `uptrace-mcp` project (where `pyproject.toml` is located).
Add the following configuration (replace the paths with your actual project paths):
```json
{
"mcpServers": {
"uptrace": {
"command": "/path/to/uptrace-mcp/.venv/bin/poetry",
"args": ["run", "uptrace-mcp"],
"cwd": "/path/to/uptrace-mcp",
"env": {
"UPTRACE_URL": "https://uptrace.xxx",
"UPTRACE_PROJECT_ID": "3",
"UPTRACE_API_TOKEN": "your_token_here"
}
}
}
}
```
**Configuration parameters:**
- `command` - Full path to the Poetry executable (or Python interpreter)
- `args` - Arguments passed to the command (`["run", "uptrace-mcp"]` for Poetry)
- `cwd` - **Working directory** - must be the project root directory (where `pyproject.toml` is located)
- `env` - Environment variables for the server
**Note**: If you're using Poetry, make sure to use the full path to the Poetry executable from your virtual environment (`.venv/bin/poetry`) or the system Poetry installation. Alternatively, you can use the Python interpreter directly:
```json
{
"mcpServers": {
"uptrace": {
"command": "/Users/dimonb/work/pet/uptrace-mcp/.venv/bin/python",
"args": ["-m", "uptrace_mcp.server"],
"cwd": "/Users/dimonb/work/pet/uptrace-mcp",
"env": {
"UPTRACE_URL": "https://uptrace.xxx",
"UPTRACE_PROJECT_ID": "3",
"UPTRACE_API_TOKEN": "your_token_here"
}
}
}
}
```
After saving the configuration, restart Cursor. The Uptrace tools will be available in the MCP tools panel.
#### Claude Desktop
Add to your Claude Desktop config (`~/Library/Application Support/Claude/claude_desktop_config.json` on macOS):
```json
{
"mcpServers": {
"uptrace": {
"command": "poetry",
"args": ["run", "uptrace-mcp"],
"cwd": "/Users/your-username/work/pet/uptrace-mcp",
"env": {
"UPTRACE_URL": "https://uptrace.xxx",
"UPTRACE_PROJECT_ID": "3",
"UPTRACE_API_TOKEN": "your_token_here"
}
}
}
}
```
Restart Claude Desktop and the Uptrace tools will be available.
### Running Directly
```bash
# Using poetry
poetry run uptrace-mcp
# Or if installed with pip
uptrace-mcp
```
## Available Tools
### Spans & Traces
#### `uptrace_search_spans`
Search spans with custom filters using UQL. Use `where _status_code = "error"` to find error spans.
**Parameters:**
- `time_gte` (required): Start time in ISO format (YYYY-MM-DDTHH:MM:SSZ)
- `time_lt` (required): End time in ISO format (YYYY-MM-DDTHH:MM:SSZ)
- `query` (optional): UQL query string
- `limit` (optional): Maximum spans to return (default: 100)
**Examples:**
```
Search spans where service_name = "aktar" and http_status_code = 404
from 2025-12-08T09:00:00Z to 2025-12-08T10:00:00Z
Find error spans: where _status_code = "error"
from 2025-12-08T09:00:00Z to 2025-12-08T10:00:00Z
```
#### `uptrace_get_trace`
Get all spans for a specific trace ID.
**Parameters:**
- `trace_id` (required): Trace ID to retrieve
**Example:**
```
Get trace with ID 301015e15d95f1ea12af767ebf0ffcca
```
#### `uptrace_search_groups`
Search and aggregate spans by groups.
**Parameters:**
- `time_gte` (required): Start time in ISO format
- `time_lt` (required): End time in ISO format
- `query` (required): UQL query with grouping
- `limit` (optional): Maximum groups to return (default: 100)
**Example:**
```
Group spans by service_name and count errors
from 2025-12-08T09:00:00Z to 2025-12-08T10:00:00Z
query: "where _status_code = 'error' | group by service_name | count()"
```
#### `uptrace_search_services`
Search for services that have reported spans.
**Parameters:**
- `hours` (optional): Number of hours to look back (default: 24)
**Example:**
```
Search for all services from the last 48 hours
```
### Logs
#### `uptrace_search_logs`
Search logs by text, severity, service name, or custom UQL query.
**Parameters:**
- `hours` (optional): Number of hours to look back (default: 3)
- `search_text` (optional): Text to search for in log messages (case-insensitive)
- `severity` (optional): Filter by log severity (DEBUG, INFO, WARN, ERROR, FATAL)
- `service_name` (optional): Filter by service name
- `query` (optional): Additional UQL query string for advanced filtering
- `limit` (optional): Maximum number of logs to return (default: 100)
**Examples:**
```
Search logs containing "error" from the last 3 hours
Search ERROR level logs from service "aktar" in the last 6 hours
```
### Documentation
#### `uptrace_get_query_syntax`
Get UQL (Uptrace Query Language) syntax documentation. Returns operators, functions, examples, and common patterns for querying spans, logs, and metrics.
**Parameters:**
- None
**Example:**
```
Get UQL query syntax documentation
```
### Logs
The client provides methods for querying logs (logs are represented as spans with `_system = "log:all"`):
- `query_logs()` - Query logs with filters by severity, service name, and custom UQL queries
- `get_error_logs()` - Get error logs (ERROR and FATAL severity levels)
**Example usage:**
```python
from datetime import datetime, timedelta
from uptrace_mcp.client import UptraceClient
client = UptraceClient(
base_url="https://uptrace.xxx",
project_id="3",
api_token="your_token"
)
# Get error logs from the last hour
time_lt = datetime.utcnow()
time_gte = time_lt - timedelta(hours=1)
logs = client.get_error_logs(time_gte=time_gte, time_lt=time_lt, limit=100)
# Query logs with custom filters
logs = client.query_logs(
time_gte=time_gte,
time_lt=time_lt,
severity="ERROR",
service_name="my-service",
query='where log_message contains "database"',
limit=50
)
```
### Metrics
The client provides methods for querying metrics using PromQL-compatible syntax:
- `query_metrics()` - Query metrics with PromQL-compatible format
- `query_metrics_groups()` - Query and aggregate metrics by groups
**Example usage:**
```python
# Query metrics
result = client.query_metrics(
time_gte=datetime.utcnow() - timedelta(hours=1),
time_lt=datetime.utcnow(),
metrics=["system_cpu_utilization as $cpu"],
query=["avg($cpu) as cpu_avg"]
)
# Query metrics with grouping
result = client.query_metrics_groups(
time_gte=datetime.utcnow() - timedelta(hours=1),
time_lt=datetime.utcnow(),
metrics=["uptrace_tracing_spans as $spans"],
query=["sum($spans) as total_spans"],
group_by=["service_name"]
)
```
### Additional Span Methods
The client also provides additional convenience methods for working with spans:
- `get_span_by_id()` - Get a specific span by its ID
- `get_spans_by_parent()` - Get child spans by parent span ID
- `get_spans_by_system()` - Filter spans by system type (http, db, rpc, etc.)
- `get_slow_spans()` - Get spans exceeding a duration threshold
- `get_query_syntax()` - Get comprehensive UQL syntax documentation
**Example:**
```python
# Get query syntax documentation
syntax = client.get_query_syntax()
print(syntax["operators"])
print(syntax["aggregation_functions"])
print(syntax["examples"])
```
## UQL Query Examples
Uptrace uses a SQL-like query language (UQL). You can get comprehensive syntax documentation using `client.get_query_syntax()`. Here are some examples:
### Filter by status
```
where _status_code = "error"
```
### Filter by service and time
```
where service_name = "aktar" and _dur_ms > 1000
```
### HTTP errors
```
where _system = "httpserver" and http_status_code >= 400
```
### Group and aggregate
```
group by service_name | count() | avg(_dur_ms)
```
### Complex query
```
where _status_code = "error" and service_name in ("aktar", "gravipay")
| group by service_name, _name
| select service_name, _name, count(), p99(_dur_ms)
```
### Log queries
```
where _system = "log:all" and log_severity in ("ERROR", "FATAL")
| group by service_name
| select service_name, count()
```
### Metrics queries
```
metrics:
- system_cpu_utilization as $cpu
query:
- avg($cpu) as cpu_avg
- sum($cpu) by (service_name) as cpu_by_service
```
## Python Client API
The MCP server uses the `UptraceClient` class internally. You can also use it directly in your Python code:
```python
from datetime import datetime, timedelta
from uptrace_mcp.client import UptraceClient
client = UptraceClient(
base_url="https://uptrace.xxx",
project_id="3",
api_token="your_token"
)
# Query spans
spans = client.get_spans(
time_gte=datetime.utcnow() - timedelta(hours=1),
time_lt=datetime.utcnow(),
query='where _status_code = "error"',
limit=100
)
# Query logs
logs = client.query_logs(
time_gte=datetime.utcnow() - timedelta(hours=1),
time_lt=datetime.utcnow(),
severity="ERROR",
limit=50
)
# Query metrics
metrics = client.query_metrics(
time_gte=datetime.utcnow() - timedelta(hours=1),
time_lt=datetime.utcnow(),
metrics=["uptrace_tracing_spans as $spans"],
query=["sum($spans) as total"]
)
# Get query syntax documentation
syntax = client.get_query_syntax()
```
See `examples/query_errors.py` for more examples.
## Development
### Running tests
```bash
poetry run pytest
```
### Code formatting
```bash
poetry run black src/
poetry run ruff check src/
```
### Type checking
```bash
poetry run mypy src/
```
## Architecture
```
uptrace-mcp/
├── src/
│ └── uptrace_mcp/
│ ├── __init__.py
│ ├── server.py # MCP server with tool handlers
│ ├── client.py # Uptrace API client
│ └── models.py # Pydantic data models
├── tests/ # Test suite
├── pyproject.toml # Poetry configuration
└── README.md
```
## Troubleshooting
### MCP Server Not Found in Cursor
If you see "No server info found" error in Cursor:
1. **Verify the configuration file path** - Make sure you're editing the correct MCP settings file:
- macOS: `~/Library/Application Support/Cursor/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json`
- Windows: `%APPDATA%\Cursor\User\globalStorage\saoudrizwan.claude-dev\settings\cline_mcp_settings.json`
- Linux: `~/.config/Cursor/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json`
2. **Check the `cwd` parameter** - This is critical! The `cwd` must point to the project root directory (where `pyproject.toml` is located):
```json
"cwd": "/full/path/to/uptrace-mcp"
```
Common error: `Poetry could not find a pyproject.toml file` means `cwd` is wrong.
3. **Check file permissions** - Ensure the configuration file is valid JSON and readable
4. **Verify Poetry/Python path** - Test the command manually:
```bash
cd /path/to/uptrace-mcp
.venv/bin/poetry run uptrace-mcp --help
```
5. **Check environment variables** - Make sure all required variables are set in the `env` section:
- `UPTRACE_URL`
- `UPTRACE_PROJECT_ID`
- `UPTRACE_API_TOKEN`
6. **Restart Cursor** - After making changes, completely restart Cursor (not just reload)
7. **Check Cursor logs** - Look for error messages in Cursor's developer console or logs
### Connection Issues
If you get connection errors:
1. Verify `UPTRACE_URL` is correct and includes protocol (https://)
2. Check that `UPTRACE_PROJECT_ID` is a valid number
3. Ensure `UPTRACE_API_TOKEN` is valid and not expired
### Permission Errors
If you get 403 Forbidden errors:
- Verify the token has access to the specified project
- Check if SSO is enabled (requires separate API user account)
### No Data Returned
If queries return no data:
- Check the time range is correct (use UTC timezone)
- Verify spans exist in that time period via Uptrace UI
- Try a broader query without filters first
### Testing the Server Manually
1. **Check configuration:**
```bash
cd /path/to/uptrace-mcp
python check_config.py
```
2. **Test server startup:**
```bash
export UPTRACE_URL="https://uptrace.xxx"
export UPTRACE_PROJECT_ID="3"
export UPTRACE_API_TOKEN="your_token"
.venv/bin/poetry run uptrace-mcp
```
The server should start without errors. Press Ctrl+C to stop it.
3. **Verify MCP protocol:**
The server communicates via stdio, so you won't see output when run directly.
If it starts without errors, it's working correctly.
## API Documentation
For more information about Uptrace API and UQL syntax, see:
- [Uptrace Query Language](https://uptrace.dev/features/querying/spans)
- [Uptrace API](https://uptrace.dev/features/json-api)
## License
MIT
## Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
