Overview
Search credit rating history across 253 companies. Returns issuer-level and instrument-level ratings from S&P, Moody’s, and Fitch, sourced from SEC Rule 17g-7(b) NRSRO disclosures and LLM extraction from SEC filings.
Request
Company Filters
Filter by company ticker(s), comma-separated.Example: AAPL,MSFT,GOOGL
Filter by sector.Example: Technology
Rating Filters
Filter by rating bucket: IG, HY-BB, HY-B, HY-CCC, NR
Filter by S&P rating (e.g., BB+, BBB-)
Filter by Moody’s rating (e.g., Ba1, Baa3)
Filter by rating type: issuer, senior_secured, senior_unsecured, subordinated, corporate_family
Filter by instrument CUSIP for instrument-level ratings.
Show only issuer-level ratings (exclude instrument-level).
Date Filters
Convenience
Return only the most recent rating per company/agency.
Response Options
Comma-separated fields to return.Example: ticker,agency,rating,effective_date
sort
string
default:"-effective_date"
Sort field. Prefix - for descending.
Results per page. Maximum 200.
Coverage
- 253 companies with at least one rating
- 607 total ratings across S&P, Moody’s, and Fitch
- Rating types: issuer, senior_secured, senior_unsecured, subordinated, corporate_family
- Sources: SEC Rule 17g-7(b) NRSRO disclosures (Fitch, Moody’s) + LLM extraction from SEC filings (S&P)
- Refresh: Monthly (1st Sunday, 2 AM ET)
Examples
Get Latest Ratings for a Company
curl "https://api.debtstack.ai/v1/ratings?ticker=AAPL&latest=true" \
-H "X-API-Key: ds_xxxxx"
Response
{
"ratings": [
{
"ticker": "AAPL",
"company_name": "Apple Inc.",
"agency": "sp",
"rating": "AA+",
"rating_type": "issuer",
"outlook": "stable",
"effective_date": "2024-08-15",
"rating_bucket": "IG",
"source_section_type": "llm_extraction"
},
{
"ticker": "AAPL",
"company_name": "Apple Inc.",
"agency": "moodys",
"rating": "Aaa",
"rating_type": "issuer",
"outlook": "stable",
"effective_date": "2024-06-20",
"rating_bucket": "IG",
"source_section_type": "nrsro_17g7"
},
{
"ticker": "AAPL",
"company_name": "Apple Inc.",
"agency": "fitch",
"rating": "AA+",
"rating_type": "issuer",
"outlook": "stable",
"effective_date": "2024-05-10",
"rating_bucket": "IG",
"source_section_type": "nrsro_17g7"
}
],
"meta": {
"total": 3,
"limit": 50,
"offset": 0
}
}
More Examples
Screen for Investment Grade Companies
curl "https://api.debtstack.ai/v1/ratings?rating_bucket=IG&latest=true&issuer_only=true" \
-H "X-API-Key: ds_xxxxx"
Find High-Yield Ratings
curl "https://api.debtstack.ai/v1/ratings?rating_bucket=HY-BB&latest=true" \
-H "X-API-Key: ds_xxxxx"
Compare Ratings Across MAG7
curl "https://api.debtstack.ai/v1/ratings?ticker=AAPL,MSFT,GOOGL,AMZN,NVDA,META,TSLA&latest=true&issuer_only=true" \
-H "X-API-Key: ds_xxxxx"