Skill: Get API Documentation via Context Hub

Use the chub CLI to fetch curated, versioned API documentation before writing code against external APIs. This prevents hallucinated API calls and ensures correct SDK usage.

When to Use

• Before implementing code that calls an external API or SDK
• When unsure about correct API parameters, methods, or patterns
• When the user asks about how to use a specific service's API

Commands

# Search for available docs (no query lists all)
chub search [query]

# Fetch documentation by ID (with language variant)
chub get <id> --lang py    # Python docs
chub get <id> --lang js    # JavaScript/TypeScript docs
chub get <id>              # Default (usually JS)

# Fetch full docs (all reference files)
chub get <id> --lang py --full

# Fetch specific reference file (token-efficient)
chub get <id> --file <filename>

# Add persistent annotation when you discover a gap or workaround
chub annotate <id> "note about what you learned"

# View existing annotations
chub annotate --list

# Rate documentation quality
chub feedback <id> up      # Helpful
chub feedback <id> down    # Needs improvement

Workflow

1. Search for the relevant API: chub search "stripe"
2. Fetch language-specific docs: chub get stripe/api --lang js
3. Read the output and use it as the source of truth for API calls
4. Annotate if you discover gaps: chub annotate stripe/api "webhook needs raw body"
5. Rate after use: chub feedback stripe/api up

Available Docs (as of 2026-03-07)

20 entries including: airtable, amplitude, anthropic/claude-api, asana, assemblyai, atlassian/confluence, auth0, aws/s3, binance, braintree, chromadb, clerk, cloudflare/workers, cockroachdb, cohere, datadog, deepgram, deepl, deepseek, directus.

Run chub search to get the current full list.

Important

• Always fetch docs BEFORE writing API integration code, not after
• Use --lang py or --lang js to get language-specific examples
• Use --full sparingly — it returns all reference files and uses more tokens
• Annotations persist locally across sessions — use them to build knowledge