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Vynn Backtester

Run trading strategy backtests with natural language — powered by Vynn

skill openclawclawhub Free
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Run trading strategy backtests with natural language — powered by Vynn

⬇ 0 downloads ★ 0 stars Unverified but indexed

Install for OpenClaw

Quick setup
  1. Download the package from Yavira.
  2. Extract the archive and review SKILL.md first.
  3. Import or place the package into your OpenClaw setup.

Requirements

Target platform
OpenClaw
Install method
Manual import
Extraction
Extract archive
Prerequisites
OpenClaw
Primary doc
SKILL.md

Package facts

Download mode
Yavira redirect
Package format
ZIP package
Source platform
Tencent SkillHub
What's included
SKILL.md, config.example.toml, plugin.py

Validation

  • Use the Yavira download entry.
  • Review SKILL.md after the package is downloaded.
  • Confirm the extracted package contains the expected setup assets.

Install with your agent

Agent handoff

Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.

  1. Download the package from Yavira.
  2. Extract it into a folder your agent can access.
  3. Paste one of the prompts below and point your agent at the extracted folder.
New install

I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.

Upgrade existing

I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.

Trust & source

Release facts

Source
Tencent SkillHub
Verification
Indexed source record
Version
1.0.0

Documentation

ClawHub primary doc Primary doc: SKILL.md 14 sections Open source page

Vynn Backtester

Backtest any trading strategy with natural language. Get Sharpe ratio, returns, drawdown, and full equity curves in seconds.

What it does

Natural language strategies: Describe your strategy in plain English and Vynn translates it into a runnable backtest Structured strategies: Power users can pass precise entry/exit rules as JSON Full metrics: Sharpe ratio, total return, max drawdown, win rate, trade count, and equity curve Multi-ticker: Backtest across any combination of stocks, ETFs, or indices Strategy comparison: Compare multiple strategies head-to-head, ranked by Sharpe ratio No infrastructure: No local data downloads, no dependencies beyond Python stdlib

Setup

Get a free API key at the-vynn.com (10 backtests/month, no credit card) Set VYNN_API_KEY in your environment or skill config Run /backtest "your strategy here" from any OpenClaw agent

Quick start

# Sign up (instant, returns your API key) curl -X POST https://the-vynn.com/v1/signup -H "Content-Type: application/json" -d '{"email": "you@example.com"}' # Set the key export VYNN_API_KEY="vynn_free_..."

Simple natural language backtest

/backtest "RSI mean reversion on AAPL, 2 year lookback"

Momentum strategy

/backtest "MACD crossover on SPY with 20/50 EMA filter"

Multi-ticker portfolio

/backtest --tickers AAPL,MSFT,GOOGL --strategy "momentum top 3"

Structured entry/exit rules

/backtest '{"entries": [{"indicator": "RSI", "op": "<", "value": 30}], "exits": [{"indicator": "RSI", "op": ">", "value": 70}]}' --tickers AAPL

Compare strategies

from plugin import VynnBacktesterPlugin vynn = VynnBacktesterPlugin() results = vynn.compare( strategies=[ "RSI mean reversion", "MACD crossover", "Bollinger band breakout", ], tickers=["SPY"], ) for r in results: print(f"{r.strategy}: Sharpe={r.sharpe_ratio}, Return={r.total_return_pct}%")

Environment Variables

VariableRequiredDescriptionDefaultVYNN_API_KEYYesYour API key from the-vynn.com--VYNN_BASE_URLNoOverride API base URL (for self-hosted instances)https://the-vynn.com/v1

External Endpoints

EndpointPurposeData Senthttps://the-vynn.com/v1/backtestExecute a strategy backtestStrategy text, ticker list, lookback periodhttps://the-vynn.com/v1/signupFree API key registrationEmail address

Security & Privacy

All requests authenticated via X-API-Key header Strategy descriptions and ticker lists are sent to the Vynn API for backtest execution No trading data, portfolio holdings, or personal information is stored beyond the backtest run Backtest results are ephemeral and not persisted on Vynn servers No credentials are stored by the skill -- only your API key in environment variables Source code is fully open: github.com/beee003/astrai-openclaw

Model Invocation

This skill does not invoke any LLM models. It sends strategy descriptions to the Vynn backtest engine, which is a quantitative execution engine (not an AI model). No prompts or completions are generated.

Pricing

Free: 10 backtests/month, all features, no credit card required Pro ($29/mo): Unlimited backtests, priority execution, extended lookback periods

Category context

Code helpers, APIs, CLIs, browser automation, testing, and developer operations.

Source: Tencent SkillHub

Largest current source with strong distribution and engagement signals.

Package contents

Included in package
1 Docs1 Scripts1 Files
  • SKILL.md Primary doc
  • plugin.py Scripts
  • config.example.toml Files