Bond profiles, FINRA TRACE price history
| type | api |
| url | https://finnhub.io/api/v1/ |
| auth | api_key (FINNHUB_API_KEY) |
| cost | freemium |
| update frequency | on_demand |
| consumers | finview |
| classification | public_market |
Graceful fallback if no API key. Enrichment source only.