# Bloomberg Query Language (BQL)

**Canonical:** https://apis.io/providers/bloomberg-query-language-bql/  
**Website:** https://www.bloomberg.com/professional/  
**APIs profiled:** 2

Bloomberg Query Language (BQL) is a proprietary query language for accessing, filtering, aggregating, and computing on Bloomberg's financial data universe. BQL enables users to write flexible data requests that go beyond standard API fields, supporting derived calculations, time series expressions, and complex filtering of securities and data points. Available in the Bloomberg Terminal, Excel Add-in, and via API.

## Kin Score — 19.1 / 100 (emerging)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 19.1).

| Facet | Score |
|---|---|
| Discoverability | 59.3 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 36.8 |
| Access Clarity | 36.8 |

## Agent readiness — 3.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (2)

- **Bloomberg Query Language (BQL) API** — Execute BQL queries programmatically via the Bloomberg API to retrieve custom computed financial data, filtered security sets, and time series expressions from Bloomberg's data ...
- **BQL in Bloomberg Excel Add-in** — Use Bloomberg Query Language directly in Microsoft Excel to execute complex data queries and retrieve computed results in spreadsheet cells. Supports multi-row outputs, time ser...

## Security (1)

- **Bloomberg Query Language Bql Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Bloomberg Query Language Bql Plans Pricing**

## Use cases (5)

- **Quantitative Screening** — Screen securities using complex fundamental and technical criteria.
- **Custom Analytics** — Create custom financial metrics not available as standard data fields.
- **Portfolio Analysis** — Analyze portfolio characteristics using flexible BQL expressions.
- **Backtesting** — Access historical data via BQL time series for strategy backtesting.
- **Risk Reporting** — Compute and aggregate risk metrics across portfolios using BQL.

## Tags

BQL, Query Language, Financial Data, Analytics, Data Query, Bloomberg

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/bloomberg-query-language-bql/). Scores are computed from the provider's own public artifacts under a published rubric.