# Quandl (Nasdaq Data Link)

**Canonical:** https://apis.io/providers/quandl/  
**Website:** https://data.nasdaq.com/  
**APIs profiled:** 5

Nasdaq Data Link (formerly Quandl) provides REST and streaming APIs for financial and economic data including time-series datasets, tabular datasets, and real-time market data feeds. Datasets cover stock prices, economic indicators, interest rates, commodities, equity fundamentals, options data, and alternative data sets.

## Kin Score — 38.6 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 38.6).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 62.9 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 53.6 |
| Commercial Clarity | 13.2 |
| Access Clarity | 13.2 |

Regulatory layer — **Securities & Market Data**: 38.3 (matched via tags).

## Agent readiness — 38.3 (agent-ready)

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

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (5)

- **Nasdaq Data Link Tables REST API** — Nasdaq Data Link Tables API provides access to tabular financial datasets including equity fundamentals, options data, and alternative data sets. Limited to 10,000 rows per call...
- **Nasdaq Cloud Data Service (NCDS) Streaming API** — Nasdaq Cloud Data Service (NCDS) provides streaming and REST APIs for real-time and delayed market data delivery including equities, options, and fixed income from Nasdaq exchan...
- **Quandl (Nasdaq Data Link) Databases API** — Database catalog and metadata
- **Quandl (Nasdaq Data Link) Datasets API** — Time-series dataset retrieval
- **Quandl (Nasdaq Data Link) Tables API** — Tabular dataset retrieval

## Agentic access (1)

- **Quandl Agentic Access** — 6 operations

## Security (2)

- **Quandl Authentication** — apiKey · 2 schemes
- **Quandl Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Quandl Plans Pricing**

## Tags

Finance, Market Data, Economic Data, Time Series, Streaming

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