discovery-engine-api 0.2.74

Python SDK for the Discovery Engine API

Discovery Engine Python SDK

Find novel, statistically validated patterns in tabular data — feature interactions, subgroup effects, and conditional relationships that correlation analysis and LLMs miss.

Installation

pip install discovery-engine-api

For pandas DataFrame support:

pip install discovery-engine-api[pandas]

Quick Start

from discovery import Engine

engine = Engine(api_key="disco_...")

result = await engine.discover(
    file="data.csv",
    target_column="outcome",
)

for pattern in result.patterns:
    if pattern.p_value < 0.05 and pattern.novelty_type == "novel":
        print(f"{pattern.description} (p={pattern.p_value:.4f})")

print(f"Full report: {result.report_url}")

Get your API key from the Developers page.

Parameters

await engine.discover(
    file: str | Path | pd.DataFrame,  # Dataset to analyze
    target_column: str,                 # Column to predict/analyze
    depth_iterations: int = 1,          # 1=fast, higher=deeper search
    visibility: str = "public",         # "public" (free) or "private" (credits)
    title: str | None = None,           # Dataset title
    description: str | None = None,     # Dataset description
    column_descriptions: dict[str, str] | None = None,  # Improves pattern explanations
    excluded_columns: list[str] | None = None,           # Columns to exclude (e.g., IDs)
    timeout: float = 1800,              # Max seconds to wait
)

Tip: Providing column_descriptions significantly improves pattern explanations. If your columns have non-obvious names, always describe them.

Depth and visibility: Public runs are always depth_iterations=1 regardless of settings. To use depth_iterations > 1, set visibility="private". Private runs consume credits based on file size × depth.

Examples

Working with Pandas DataFrames

import pandas as pd
from discovery import Engine

df = pd.read_csv("data.csv")

engine = Engine(api_key="disco_...")
result = await engine.discover(
    file=df,
    target_column="outcome",
    column_descriptions={
        "age": "Patient age in years",
        "bmi": "Body mass index",
    },
    excluded_columns=["patient_id", "timestamp"],
)

Inspecting Columns Before Running

If you need to see the dataset's columns before choosing a target column, upload first and inspect:

# Upload once and get the server's parsed column list
upload = await engine.upload_file(file="data.csv", title="My dataset")
print(upload["columns"])   # [{"name": "col1", "type": "continuous", ...}, ...]
print(upload["rowCount"])  # e.g., 5000

# Pass the result to avoid re-uploading
result = await engine.run_async(
    file="data.csv",
    target_column="col1",
    wait=True,
    upload_result=upload,  # skips the upload step
)

Running in the Background

Runs take 3–15 minutes. If you need to do other work while Discovery Engine runs:

import asyncio
from discovery import Engine

async def main():
    async with Engine(api_key="disco_...") as engine:
        # Submit without waiting
        run = await engine.run_async(
            file="data.csv",
            target_column="outcome",
            wait=False,
        )
        print(f"Submitted run {run.run_id}, continuing...")

        # ... do other work ...

        # Check back later
        result = await engine.wait_for_completion(run.run_id, timeout=1800)
        return result

result = asyncio.run(main())

Synchronous Usage

For scripts and Jupyter notebooks:

from discovery import Engine

engine = Engine(api_key="disco_...")
result = engine.run(
    file="data.csv",
    target_column="outcome",
    wait=True,
)

For Jupyter notebooks, install the jupyter extra for engine.run() compatibility:

pip install discovery-engine-api[jupyter]

Or use await engine.discover(...) / await engine.run_async(...) directly in async notebook cells.

Working with Results

# Filter for significant novel patterns
novel = [p for p in result.patterns
         if p.p_value < 0.05 and p.novelty_type == "novel"]

# Get patterns that increase the target
increasing = [p for p in result.patterns if p.target_change_direction == "max"]

# Inspect conditions
for pattern in result.patterns:
    for cond in pattern.conditions:
        print(f"  {cond['feature']}: {cond}")

# Feature importance
if result.feature_importance:
    top = sorted(result.feature_importance.scores,
                 key=lambda s: abs(s.score), reverse=True)

# Share the interactive report
print(f"Explore: {result.report_url}")

Credits and Pricing

• Public runs: Free. Results published to public gallery. Locked to depth=1.
• Private runs: 1 credit per MB per depth iteration. $1.00 per credit.
• Formula: credits = max(1, ceil(file_size_mb * depth_iterations))

# Estimate cost before running
estimate = await engine.estimate(
    file_size_mb=10.5,
    num_columns=25,
    depth_iterations=2,
    visibility="private",
)
# estimate["cost"]["credits"] -> 21
# estimate["cost"]["free_alternative"] -> True
# estimate["account"]["sufficient"] -> True/False

Manage credits and plans at disco.leap-labs.com/account.

File Size Limits

Uploads up to 5 GB. Files are uploaded directly to cloud storage using presigned URLs.

Supported formats: CSV, TSV, Excel (.xlsx), JSON, Parquet, ARFF, Feather.

Return Value

EngineResult

@dataclass
class EngineResult:
    run_id: str
    status: str                                    # "pending", "processing", "completed", "failed"
    summary: Summary | None                        # LLM-generated insights
    patterns: list[Pattern]                        # Discovered patterns (the core output)
    columns: list[Column]                          # Feature info and statistics
    feature_importance: FeatureImportance | None   # Global importance scores
    correlation_matrix: list[CorrelationEntry]     # Feature correlations
    report_url: str | None                         # Shareable link to interactive web report
    task: str | None                               # "regression", "binary_classification", "multiclass_classification"
    total_rows: int | None
    error_message: str | None

Pattern

@dataclass
class Pattern:
    id: str
    description: str                    # Human-readable description
    conditions: list[dict]              # Conditions defining the pattern
    p_value: float                      # FDR-adjusted p-value
    p_value_raw: float | None           # Raw p-value before adjustment
    novelty_type: str                   # "novel" or "confirmatory"
    novelty_explanation: str            # Why this is novel or confirmatory
    citations: list[dict]               # Academic citations
    target_change_direction: str        # "max" (increases target) or "min" (decreases)
    abs_target_change: float            # Magnitude of effect
    support_count: int                  # Rows matching this pattern
    support_percentage: float           # Percentage of dataset
    target_mean: float | None           # For regression tasks
    target_std: float | None

Pattern Conditions

Each condition in pattern.conditions is a dict with a type field:

Continuous condition — a numeric range:

{
    "type": "continuous",
    "feature": "age",
    "min_value": 45.0,
    "max_value": 65.0,
    "min_q": 0.35,   # quantile of min_value
    "max_q": 0.72    # quantile of max_value
}

Categorical condition — a set of values:

{
    "type": "categorical",
    "feature": "region",
    "values": ["north", "east"]
}

Datetime condition — a time range:

{
    "type": "datetime",
    "feature": "date",
    "min_value": 1609459200000,   # epoch ms
    "max_value": 1640995200000,
    "min_datetime": "2021-01-01", # human-readable
    "max_datetime": "2022-01-01"
}

Summary

@dataclass
class Summary:
    overview: str                       # High-level summary of findings
    key_insights: list[str]             # Main takeaways
    novel_patterns: PatternGroup        # Novel pattern IDs and explanation

Column

@dataclass
class Column:
    id: str
    name: str
    display_name: str
    type: str                           # "continuous" or "categorical"
    data_type: str                      # "int", "float", "string", "boolean", "datetime"
    enabled: bool
    description: str | None
    mean: float | None
    median: float | None
    std: float | None
    min: float | None
    max: float | None
    feature_importance_score: float | None  # Signed importance score

FeatureImportance

Computed using Hierarchical Perturbation (HiPe), an ablation-based method. Scores are signed — positive means the feature increases the prediction, negative means it decreases it.

@dataclass
class FeatureImportance:
    kind: str                           # "global"
    baseline: float                     # Baseline model output
    scores: list[FeatureImportanceScore]

@dataclass
class FeatureImportanceScore:
    feature: str
    score: float                        # Signed importance score

Error Handling

from discovery import (
    Engine,
    AuthenticationError,
    InsufficientCreditsError,
    RateLimitError,
    RunFailedError,
    PaymentRequiredError,
)

try:
    result = await engine.discover(file="data.csv", target_column="target")
except AuthenticationError as e:
    print(e.suggestion)  # "Check your API key at https://disco.leap-labs.com/developers"
except InsufficientCreditsError as e:
    print(f"Need {e.credits_required}, have {e.credits_available}")
    print(e.suggestion)  # "Purchase credits or run publicly for free"
except RateLimitError as e:
    print(f"Retry after {e.retry_after} seconds")
except RunFailedError as e:
    print(f"Run {e.run_id} failed: {e}")
except TimeoutError:
    pass  # Retrieve later with engine.wait_for_completion(run_id)

All errors include a suggestion field with actionable instructions.

MCP Server

Discovery Engine is available as an MCP server with tools for the full discovery lifecycle — estimate, analyze, check status, get results, manage account.

{
  "mcpServers": {
    "discovery-engine": {
      "url": "https://disco.leap-labs.com/mcp",
      "env": { "DISCOVERY_API_KEY": "disco_..." }
    }
  }
}

Links

• PyPI: discovery-engine-api
• API keys: disco.leap-labs.com/developers
• LLM-friendly docs: disco.leap-labs.com/llms-full.txt
• MCP manifest: disco.leap-labs.com/.well-known/mcp.json
• Credits & billing: disco.leap-labs.com/account
• Public reports: disco.leap-labs.com/discover