# Twelve Data

**Canonical:** https://apis.io/providers/twelvedata/  
**Website:** https://twelvedata.com  
**APIs profiled:** 6

Twelve Data is a financial market data provider offering real-time and historical data for stocks, forex, cryptocurrencies, ETFs, indices, commodities, and funds through a single REST API and a real-time WebSocket. Coverage spans time series (OHLCV), quotes and prices, 100-plus technical indicators, reference and catalog data, and company fundamentals. Every request is authenticated with an apikey and metered as API credits; a free Basic plan grants 800 API credits per day. Real-time price streaming is delivered over a WebSocket at wss://ws.twelvedata.com/v1/quotes/price.

## Kin Score — 75.4 / 100 (exemplar)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 75.4).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 62.5 |
| Governance | 53.1 |
| Operational Transparency | 73.7 |
| Developer Ergonomics | 86.4 |
| Commercial Clarity | 100.0 |

Regulatory layer — **Securities & Market Data**: 60.0 (matched via tags).

## Agent readiness — 51.1 (agent-ready)

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

## Access

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

## APIs (6)

- **Twelve Data WebSocket Streaming API** — Real-time price streaming over a persistent, bidirectional WebSocket at wss://ws.twelvedata.com/v1/quotes/price. Clients authenticate with an apikey query parameter, send JSON s...
- **Twelve Data Core Data API** — Real-time quotes, latest prices, and end-of-day data.
- **Twelve Data Fundamentals API** — Company profiles, statements, dividends, earnings, and analysis.
- **Twelve Data Reference Data API** — Catalogs of instruments, exchanges, and supporting metadata.
- **Twelve Data Technical Indicators API** — 100+ technical analysis indicators computed over time series.
- **Twelve Data Time Series API** — Historical and real-time OHLCV time series.

## MCP servers (1)

- **twelvedata-mcp.yml**

## Agentic access (1)

- **Twelvedata Agentic Access** — 26 operations

## Security (3)

- **Twelvedata Authentication** — apiKey · 2 schemes
- **Twelvedata Domain Security** — TLSv1.3 · DMARC
- **Twelvedata Trust Center** — SOC 2, GDPR

## Plans (1)

- **Twelvedata Plans Pricing**

## Tags

Market Data, Financial Data, Stocks, Forex, Crypto, Real-Time Data, Technical Indicators, Fundamentals

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