Forecasting Expert Knowledge
RightNow-AI/openfang
Reference knowledge for AI forecasting: superforecasting principles, a signal taxonomy, confidence calibration rules and reasoning chains for making and tracking predictions.
API de datos financieros de EE.UU.: acciones, forex, crypto, indicadores técnicos, fundamental data.
Install Alpha Vantage
$ npx skills add gauss314/skills --skill alpha-vantage -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install gauss314/skills alpha-vantage --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/gauss314/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/alpha-vantage .claude/skills/alpha-vantage && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "alpha-vantage" agent skill from https://github.com/gauss314/skills/tree/main/skills/alpha-vantage into .claude/skills/alpha-vantage/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "alpha-vantage", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/gauss314/skills/tree/main/skills/alpha-vantageType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add gauss314/skills --skill alpha-vantage -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install gauss314/skills alpha-vantage --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gauss314/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/alpha-vantage .agents/skills/alpha-vantage && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "alpha-vantage" agent skill from https://github.com/gauss314/skills/tree/main/skills/alpha-vantage into .agents/skills/alpha-vantage/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "alpha-vantage", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add gauss314/skills --skill alpha-vantage -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install gauss314/skills alpha-vantage --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gauss314/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/alpha-vantage .cursor/skills/alpha-vantage && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "alpha-vantage" agent skill from https://github.com/gauss314/skills/tree/main/skills/alpha-vantage into .cursor/skills/alpha-vantage/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "alpha-vantage", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/gauss314/skills.git --path skills/alpha-vantage--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add gauss314/skills --skill alpha-vantage -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install gauss314/skills alpha-vantage --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gauss314/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/alpha-vantage .gemini/skills/alpha-vantage && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "alpha-vantage" agent skill from https://github.com/gauss314/skills/tree/main/skills/alpha-vantage into .gemini/skills/alpha-vantage/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "alpha-vantage", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install gauss314/skills alpha-vantageInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add gauss314/skills --skill alpha-vantage -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/gauss314/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/alpha-vantage .github/skills/alpha-vantage && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "alpha-vantage" agent skill from https://github.com/gauss314/skills/tree/main/skills/alpha-vantage into .github/skills/alpha-vantage/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "alpha-vantage", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add gauss314/skills --skill alpha-vantage -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install gauss314/skills alpha-vantage --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gauss314/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/alpha-vantage .opencode/skills/alpha-vantage && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "alpha-vantage" agent skill from https://github.com/gauss314/skills/tree/main/skills/alpha-vantage into .opencode/skills/alpha-vantage/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "alpha-vantage", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
alpha-vantage- GitHub stars
- 247
- Token cost
- ~1.5k tokens
- SKILL.md length
- 412 words
- Files
- 4 (incl. scripts, references)
- Skills in repo
- 32
- Repo updated
- First seen
- Licence
- MIT
At a glance
API de datos financieros de EE.UU.: acciones, forex, crypto, indicadores técnicos, fundamental data.
- Works in 4 steps: Ir a:… → Completar el formulario (email, nombre,… → Recibir key instantáneamente por email → …
- Tasks that involve Forecasting and time series
- SKILL.md covers Autenticación, Rate Limits, Endpoints Disponibles and Ejemplos de Uso, plus 2 more sections
- Runs Python scripts from its folder; calls python; reaches alphavantage.co; needs API_KEY and ALPHAVANTAGE_API_KEY
What it does
Alpha Vantage is an agent skill from gauss314/skills. API de datos financieros de EE.UU.: acciones, forex, crypto, indicadores técnicos, fundamental data.
Its SKILL.md is about 1.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including scripts and reference files (for example `references/indicators.md`, `scripts/download_quotes.py` and `scripts/download_timeseries.py`).
It sits in Data & Analytics, covering Forecasting and time series. It works with Alpha Vantage. The repository describes itself as: Financial market data consumption skills for claude code and AI agents. The licence is MIT.
When your agent uses it
- Tasks that involve Forecasting and time series
Example prompts
- “/alpha-vantage”
Requirements
- Python 3
- A credential in API_KEY
- A credential in ALPHAVANTAGE_API_KEY
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Ir a: https://www.alphavantage.co/support/#api-key
- Completar el formulario (email, nombre, tipo de uso)
- Recibir key instantáneamente por email
- No requiere tarjeta de crédito
What it can do on your machine
Read from SKILL.md and the folder at commit 5156f81. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 2 files in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
python
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
alphavantage.co
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
API_KEYALPHAVANTAGE_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Alpha Vantage loads about 1.5k tokens when it runs, and up to ~2.2k if it reads all its reference files. Until then it costs about 29 tokens; SKILL.md has 412 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
The full file from gauss314/skills at commit 5156f81, republished under its MIT licence (© gauss314). 412 words, ~1,508 tokens.
Download SKILL.mdSave it as
.claude/skills/alpha-vantage/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- alpha-vantage
- description
- API de datos financieros de EE.UU.: acciones, forex, crypto, indicadores técnicos, fundamental data.
- license
- MIT
Alpha Vantage — Financial Data API
⚠️ IMPORTANTE: Requiere API Key gratuita. Ver sección de Autenticación.
API de datos financieros con cobertura global (20+ bolsas, 200,000+ tickers).
Base URL: https://www.alphavantage.co/query
Documentación completa: alphavantage.co/documentation
Autenticación
Obtener API Key (GRATIS)
- Ir a: https://www.alphavantage.co/support/#api-key
- Completar el formulario (email, nombre, tipo de uso)
- Recibir key instantáneamente por email
- No requiere tarjeta de crédito
Usar la API Key
import os
API_KEY = os.getenv("ALPHAVANTAGE_API_KEY") # Recomendado
# o directamente:
API_KEY = "TU_API_KEY_AQUI"⚠️ NUNCA hardcodear la API key en código que se va a compartir/commits.
Rate Limits
| Plan | Requests/Día | Requests/Minuto | Precio |
|---|---|---|---|
| Free | 25 | 5 | $0 |
| Standard | ∞ | 75 | $49.99/mes |
| Premium | ∞ | 150 | $99.99/mes |
| Enterprise | ∞ | 1,200 | $249.99/mes |
Recomendaciones para Free Tier
- Cachear respuestas — los datos no cambian frecuentemente
- Usar
outputsize=compact— retorna últimos 100 datos (gratis) - No hacer llamadas en cada request de usuario
- Esperar 12+ segundos entre requests (5 req/min máximo)
Si llegás al límite
El API retorna:
{
"Error Message": "Thank you for using Alpha Vantage! Our standard API call frequency is 5 requests per minute and 25 requests per day. Please subscribe to a premium plan for higher API call volume."
}Endpoints Disponibles
Time Series — Acciones (Free Tier)
| Function | Descripción | Notas |
|---|---|---|
TIME_SERIES_DAILY | OHLCV diario | ⚠️ Solo compact (100 datos) |
TIME_SERIES_WEEKLY | OHLCV semanal | Full history |
TIME_SERIES_MONTHLY | OHLCV mensual | Full history |
GLOBAL_QUOTE | Quote último precio | Rápido |
SYMBOL_SEARCH | Buscar símbolos |
Time Series — PREMIUM
| Function | Descripción |
|---|---|
TIME_SERIES_INTRADAY | Datos intraday (1/5/15/30/60 min) |
TIME_SERIES_DAILY_ADJUSTED | Con splits/dividendos |
outputsize=full | Historia completa (20+ años) |
Fundamental Data (Free Tier)
| Function | Descripción |
|---|---|
OVERVIEW | Company overview |
INCOME_STATEMENT | Estado de resultados |
BALANCE_SHEET | Balance general |
CASH_FLOW | Flujo de caja |
EARNINGS | Ganancias históricas |
Forex (Free Tier)
| Function | Descripción |
|---|---|
CURRENCY_EXCHANGE_RATE | Tipo de cambio actual |
FX_INTRADAY | Intraday forex |
FX_DAILY | Forex diario |
FX_WEEKLY | Forex semanal |
FX_MONTHLY | Forex mensual |
Cryptocurrency (Free Tier)
| Function | Descripción |
|---|---|
CURRENCY_EXCHANGE_RATE | Crypto vs fiat |
DIGITAL_CURRENCY_DAILY | Crypto diario |
DIGITAL_CURRENCY_WEEKLY | Crypto semanal |
DIGITAL_CURRENCY_MONTHLY | Crypto mensual |
Show full SKILL.md (159 more words)Show less
Technical Indicators (50+ Free Tier)
Ver lista completa en ./references/indicators.md:
| Categoría | Indicadores |
|---|---|
| Trend | SMA, EMA, WMA, DEMA, TEMA, KAMA, etc. |
| Momentum | RSI, MACD, STOCH, WILLR, ADX, CCI, etc. |
| Volatility | BBANDS, ATR, NATR, TRANGE |
| Volume | OBV, AD, ADOSC |
Economic Indicators (Free Tier)
| Function | Descripción |
|---|---|
REAL_GDP | PIB de EE.UU. |
CPI | Índice de Precios al Consumidor |
INFLATION | Tasa de inflación |
UNEMPLOYMENT | Tasa de desempleo |
FEDERAL_FUNDS_RATE | Tasa de fondos federales |
TREASURY_YIELD | Rendimientos del tesoro |
Alpha Intelligence (Free Tier)
| Function | Descripción | Notas |
|---|---|---|
NEWS_SENTIMENT | Análisis de sentimiento | Free |
TOP_GAINERS_LOSERS | Mejores/peores | Free |
INSIDER_TRANSACTIONS | Transacciones insiders | ⚠️ PREMIUM |
ANALYTICS_FIXED_WINDOW | Analytics avanzado | ⚠️ PREMIUM |
Ejemplos de Uso
Quote actual (más simple)
import requests
url = "https://www.alphavantage.co/query"
params = {
"function": "GLOBAL_QUOTE",
"symbol": "AAPL",
"apikey": API_KEY
}
r = requests.get(url, params=params)
quote = r.json()["Global Quote"]
print(f"AAPL: ${quote['05. price']}")Time Series Diario
params = {
"function": "TIME_SERIES_DAILY",
"symbol": "IBM",
"outputsize": "compact", # últimos 100 días (free)
"apikey": API_KEY
}
r = requests.get(url, params=params)
data = r.json()["Time Series (Daily)"]Indicador Técnico (RSI)
params = {
"function": "RSI",
"symbol": "IBM",
"interval": "daily",
"time_period": 14,
"apikey": API_KEY
}Forex
params = {
"function": "CURRENCY_EXCHANGE_RATE",
"from_currency": "BTC",
"to_currency": "USD",
"apikey": API_KEY
}Scripts de Descarga
Usá los scripts en ./scripts/:
# Descargar quotes de múltiples símbolos
python ./scripts/download_quotes.py --symbols AAPL,GOOGL,MSFT --output data/
# Descargar time series diarios
python ./scripts/download_timeseries.py --symbol AAPL --output data/
# Descargar indicadores técnicos
python ./scripts/download_indicators.py --symbol AAPL --indicator RSI --output data/Errores Comunes
| Error | Causa | Solución |
|---|---|---|
| "5 requests per minute" | Rate limit | Esperar 12+ segundos |
| "25 requests per day" | Daily limit | Esperar 24 horas o upgrade |
| "Invalid API call" | Symbol no existe | Usar SYMBOL_SEARCH primero |
| "premium" en response | Endpoint premium | Usar alternativa free o upgrade |
© gauss314, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 3 other files (scripts, references) in skills/alpha-vantage of gauss314/skills.
- SKILL.md
- references/indicators.md
- scripts/download_quotes.py
- scripts/download_timeseries.py
Open the folder on GitHubat commit 5156f81
Compare with similar skills
Alpha Vantage next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Alpha Vantage this skillgauss314/skills | 247 | — | ~1.5k | Automated safety check: Pass | MIT | |
| Forecasting Expert KnowledgeRightNow-AI/openfang | 18k | — | ~2.5k | Automated safety check: Pass | Apache-2.0 | |
| FRED Macro Time Serieskansoku-trade/kansoku | 328 | — | ~1.1k | Automated safety check: Notes | Custom licence | |
| Longbridge Quanthelsome/folio | 270 | 1 repos | ~1.6k | Automated safety check: Pass | MIT | |
| Quant Statistical MethodsHKUDS/Vibe-Trading | 35k | — | ~4k | Automated safety check: Pass | MIT | |
| Walk Forward Validationagiprolabs/claude-trading-skills | 410 | — | ~2.2k | Automated safety check: Pass | MIT |
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Works with
Categories
Questions about Alpha Vantage
What does Alpha Vantage do?
API de datos financieros de EE.UU.: acciones, forex, crypto, indicadores técnicos, fundamental data. Alpha Vantage is an agent skill from gauss314/skills.: acciones, forex, crypto, indicadores técnicos, fundamental data.
When should I use Alpha Vantage?
Alpha Vantage fits situations like: tasks that involve Forecasting and time series.
How do I install Alpha Vantage in Claude Code?
Run `npx skills add gauss314/skills --skill alpha-vantage -a claude-code`. Or copy the skill folder (skills/alpha-vantage in gauss314/skills) into .claude/skills/alpha-vantage in your project. Claude Code loads it when a task matches its description.
How do I install Alpha Vantage in Codex?
Run `npx skills add gauss314/skills --skill alpha-vantage -a codex`. Or copy the skill folder (skills/alpha-vantage in gauss314/skills) into .agents/skills/alpha-vantage in your project. Codex loads it when a task matches its description.
Can I use Alpha Vantage in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add gauss314/skills --skill alpha-vantage -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/alpha-vantage, .gemini/skills/alpha-vantage, .github/skills/alpha-vantage and .opencode/skills/alpha-vantage in your project.
What does Alpha Vantage need to run?
Going by SKILL.md and its folder, Alpha Vantage needs Python for the scripts in its folder, the command-line tools its instructions call (python) and credentials named API_KEY and ALPHAVANTAGE_API_KEY. Our summary lists: Python 3; A credential in API_KEY; A credential in ALPHAVANTAGE_API_KEY.
Does Alpha Vantage access the network?
SKILL.md names 1 domain. In commands or code: alphavantage.co; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is Alpha Vantage safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Alpha Vantage use?
Alpha Vantage is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Alpha Vantage use?
About 1.5k tokens (SKILL.md is roughly 6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 721 tokens, read only when the agent opens those files.
What are the alternatives to Alpha Vantage?
Skills that share tags, products or a category with Alpha Vantage: Forecasting Expert Knowledge (RightNow-AI/openfang, 18k stars), FRED Macro Time Series (kansoku-trade/kansoku, 328 stars), Longbridge Quant (helsome/folio, 270 stars) and Quant Statistical Methods (HKUDS/Vibe-Trading, 35k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Alpha Vantage?
gauss314 (a GitHub user) maintains it in gauss314/skills, which has 247 GitHub stars. The repository holds 32 skills in this directory. The repository was last updated on June 14, 2026.
Source: gauss314/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.