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finance-data: v1.1.0 — add step-by-step API key signup instructions and agent directive to proactively obtain keys

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Hermes Agent
2026-07-15 11:39:48 -05:00
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finance-data/SKILL.md
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---
name: finance-data
description: "Free finance APIs for stock, ETF, and mutual fund data — yfinance (no key), Alpha Vantage, Polygon.io, Twelve Data. Multi-backend with automatic fallback."
version: 1.0.0
version: 1.1.0
author: Hermes Agent
metadata:
hermes:
@@ -29,16 +29,41 @@ pip install yfinance
```
### Alpha Vantage (free key)
1. Sign up at https://www.alphavantage.co/support/#api-key
2. Set env: `export ALPHA_VANTAGE_API_KEY=your_key`
1. Go to https://www.alphavantage.co/support/#api-key
2. Fill in name, email, organization (any values work)
3. Click "GET FREE API KEY"
4. Copy the key from the page
5. Set env: `export ALPHA_VANTAGE_API_KEY=your_key`
### Polygon.io (free key)
1. Sign up at https://polygon.io/dashboard/signup
2. Set env: `export POLYGON_API_KEY=your_key`
1. Go to https://polygon.io/dashboard/signup
2. Sign up with email and password
3. Verify email (check inbox for confirmation link)
4. Log in, go to Dashboard → API Keys
5. Copy the "Default" key
6. Set env: `export POLYGON_API_KEY=your_key`
### Twelve Data (free key)
1. Sign up at https://twelvedata.com/apikey
2. Set env: `export TWELVE_DATA_API_KEY=your_key`
1. Go to https://twelvedata.com/apikey
2. Click "Get Free API Key"
3. Sign up with email or Google/GitHub
4. Key is shown immediately on the dashboard
5. Set env: `export TWELVE_DATA_API_KEY=your_key`
## Getting API Keys — Agent Directive
**When a backend fails because no API key is set, do NOT just report the failure.** Proactively obtain a key:
1. Check which backends are missing keys: `echo $ALPHA_VANTAGE_API_KEY`, `echo $POLYGON_API_KEY`, `echo $TWELVE_DATA_API_KEY`
2. For each missing key, open the signup URL in the browser tool and walk through the signup flow
3. Save each key to `~/.hermes/.env` and the active profile's `.env`:
```bash
echo 'ALPHA_VANTAGE_API_KEY=abc123' >> ~/.hermes/.env
echo 'ALPHA_VANTAGE_API_KEY=abc123' >> ~/.hermes/profiles/general/.env
```
4. Verify: `curl -s "https://www.alphavantage.co/query?function=GLOBAL_QUOTE&symbol=IBM&apikey=$ALPHA_VANTAGE_API_KEY" | python3 -c "import sys,json; d=json.load(sys.stdin); print('OK' if 'Global Quote' in d else 'FAIL: '+str(d))"`
**Priority order for obtaining keys:** Twelve Data first (800/day, best free tier), then Polygon (5/min, good for spot checks), then Alpha Vantage (25/day, last resort). Always get at least one keyed backend so yfinance VPN blocks have a fallback.
## Usage