Twelve Data (Forex API)

Best for: Prototypes and side projects - free to start, no sales call; AI agents and automation - an agent-ready surface (MCP / llms.txt); Teams needing broad API coverage out of the box

Avoid if: You have strict compliance requirements

• █████░░░░░
  50 / 100
  Agent friendliness
• ██████████
  100 / 100
  Pricing transparency
• ████████▒░
  85 / 100
  Setup speed
• ████▒░░░░░
  45 / 100
  Docs quality
• ██████████
  100 / 100
  Procurement ease
• █████░░░░░
  50 / 100
  Trust readiness

Scores are computed deterministically from this profile's published, sourced fields (pricing, compliance, capabilities, docs and developer-surface signals) - not from reviews or paid placement. Each axis is 0-100; an unknown signal scores 0 for that axis. Procurement ease is the inverse of buying friction (higher = easier to adopt).

Pricing model

Subscription [2]twelvedata.com/pricing“Basic (Free) $0/month... Grow $79/month... Pro $229/month... Ultra $999/month”

Published pricing

✓ Yes [3]twelvedata.com/pricing“Grow $79/month ($66 with 17% annual discount); Pro $229/month ($191 with annual discount); Ultra $999/month ($832 with annual discount)”twelvedata.com/pricing-business“Enterprise $1,099/month ($916 with annual billing); Venture $499/month ($414 annually); Enterprise+ Custom (contact sales)”

Free tier

✓ Yes [4]twelvedata.com/pricing“Basic - Price: Free - API Credits: 8/day (800 daily limit)”support.twelvedata.com/en/articles/5335783-trial“8 API (800 a day) credits + 8 trial WebSocket API credits”

Free tier details

Basic (Free) plan: 8 API credits per minute (800 per day cap, resets midnight UTC), 8 trial WebSocket credits, up to 1 WebSocket connection and up to 8 symbols; non-commercial use only; Twelve Data may terminate free access at any time. [5]twelvedata.com/terms“Use Free Tier data for commercial purposes is explicitly prohibited”support.twelvedata.com/en/articles/5335783-trial“WebSocket connection capped at up to 1 connection and up to 8 symbols”

Self-serve signup

✓ Yes [6]twelvedata.com/pricing“No contracts, hidden charges, or setup fees. Payment methods: Credit cards, PayPal”

Requires sales call

✗ No

Enterprise plan

✓ Yes [7]twelvedata.com/pricing-business“Enterprise+ (Custom) - Price: Custom pricing (contact sales required); Enterprise - $1,099/month ($916/month annually)”

• Historical rates
• Conversion endpoint
• Time series
• Precious metals
• Crypto rates
• Intraday updates

Supported actions

time_series, time_series/cross, quote, price, eod, exchange_rate, currency_conversion, forex_pairs, symbol_search, exchanges, exchange_schedule, market_state, earliest_timestamp, cryptocurrencies, commodities, stocks, etfs, funds, bonds, profile, statistics, income_statement, balance_sheet, cash_flow, dividends, splits, earnings, key_executives, market_cap, market_movers, cross_listings, cryptocurrency_exchanges, technical_indicators [8]twelvedata.com/docs“Exchange Rate (/currencies/exchange-rate) - Currency conversion rates; Currency Conversion (/currencies/currency-conversion) - Practical conversion tool”twelvedata.com/docs“/time_series - Historical OHLCV data; /quote - Real-time instrument data; /price - Latest market price; /eod - End-of-day closing prices; /forex_pairs - Currency pairs”

Regions

140 fiat currencies (ISO 4217), 2,000+ forex pairs (major, minor, exotic), Precious metals: gold (XAU), silver (XAG), platinum, palladium, crude oil, Crypto available via separate cryptocurrency endpoints, Data sourced from established commercial providers and large banks meeting institutional-grade performance standards, 84 global exchanges across all paid plans, 24/7 availability [9]twelvedata.com/forex“Currency data is sourced from well established commercial providers and large banks, that correspond to the institutional grade performance standards.”twelvedata.com/forex“Access 140 currencies and precious metals that make over 2000 foreign exchange rates”

Languages

English

Input types

currency pair symbol (e.g. EUR/USD), base currency filter, quote currency filter, interval (1min to 1month), start_date / end_date, timezone, outputsize, format (JSON or CSV), decimal places (dp, 0-11), exchange / mic_code, country, page (pagination)

Output types

JSON, CSV

Webhooks

✗ No [10]twelvedata.com/docs“Connection Methods: REST API, WebSocket streaming (no webhook/push notification endpoints documented)”

Sandbox / test mode

✗ No [11]twelvedata.com/docs“Demo API key (apikey=demo) available for demo requests; Personal API key required for full access. No sandbox environment is explicitly mentioned. Testing occurs through the demo key on production endpoints.”support.twelvedata.com/en/articles/5335783-trial“Demo API key (apikey=demo) available for demo requests. There isn't a traditional sandbox environment mentioned. Instead, Twelve Data uses designated trial symbols across their exchanges specifically for testing purposes.”

SDK languages

Python, Node.js, Go, Java, R, CLI, C# [12]twelvedata.com/docs“Official SDKs: twelvedata-python, twelvedata-node, twelvedata-go, twelvedata-java, twelvedata-r-sdk, twelvedata-cli”

MCP server

✓ Yes [13]github.com/twelvedata/mcp“A remote MCP server is available at https://mcp.twelvedata.com/mcp (requires authentication via API key)”

SOC 2

Unknown [14]twelvedata.com/pricing-business“Enterprise+: SOC 2 and ISO 27001 certification”security.twelvedata.com“SOC 2 - Listed in compliance area (Type 1 or 2 not specified)”

HIPAA

– Unknown

GDPR

✓ Yes [15]twelvedata.com/privacy“we will assess the incident and notify relevant supervisory authorities (e.g., within 72 hours under GDPR)”twelvedata.com/privacy“General Data Protection Regulation (GDPR) compliance and references specific GDPR rights including access, rectification, erasure, data portability, restriction, and objection rights.”

ISO 27001

✓ Yes [16]twelvedata.com/pricing-business“Enterprise+ explicitly mentions SOC 2 and ISO 27001 certification”twelvedata.com/privacy“compliance with standards like ISO 27001 and NIST frameworks”

PCI DSS

– Unknown

Published SLA

✓ Yes [17]twelvedata.com/pricing-business“Enterprise SLA: 99.99%; Venture SLA: 99.95%”twelvedata.com/terms“99.9% uptime commitment excluding scheduled maintenance; Below 99.95%: 10% credit; Below 99%: 25% credit”

Rate limits

Basic: 8 API credits/min (800/day cap); Grow: 377 credits/min; Pro: 1,597 credits/min; Ultra: 10,946 credits/min; Venture (business): 2,584 credits/min; Enterprise (business): 10,946 credits/min; Enterprise+ (business): 10,000+ credits/min (custom). Credits reset every minute; exceeding limit returns HTTP 429. [18]twelvedata.com/pricing“Basic: API Credits: 8 (800 per day limit); Grow: 377 per minute; Pro: 1,597 per minute; Ultra: 10,946 per minute”support.twelvedata.com/en/articles/5615854-credits“a 429 error code will notify you that the API credits limit has been reached; Your full API credit quota is restored at the start of each new minute”

Known restrictions

Free tier (Basic) explicitly prohibited from commercial use, Default license grants Internal Use only; redistribution requires separate written agreement or Redistribution Add-On, Data redistribution/resale/sublicensing prohibited without explicit written authorization, Free tier WebSocket limited to 1 connection and 8 symbols, Basic plan has daily credit cap (800/day); paid plans have no daily limits, 20+ years of historical data available but depth may vary by plan, Precious metals and crypto available under separate endpoints, not within the forex_pairs endpoint, No dedicated sandbox environment; demo API key (apikey=demo) operates against production with trial symbols only [19]twelvedata.com/terms“Redistribute, resell, sublicense, or transfer any Data or access rights to third parties except as expressly permitted”twelvedata.com/terms“Use Free Tier data for commercial purposes is explicitly prohibited”

• Docs
• API reference
• Changelog

Docs rendering: static

API style

rest

Base URL

https://api.twelvedata.com

Versioning

none

Stability

ga

Auth methods

api_key

Idempotency keys

✗ No

Error format

vendor-specific

Rate limit

8 / minute

SDKs

• Python twelvedata-python · repo
• Node.js twelvedata-node · repo
• Go twelvedata-go · repo
• Java twelvedata-java · repo
• R twelvedata-r-sdk · repo
• CLI twelvedata-cli · repo
• C# TwelveDataSharp · repo

• Auth docs
• Quickstart
• MCP server
• Deprecation policy

Launched

2019-01-01

• OANDA Exchange Rates API

  "Plug the gold standard in global exchange rates into your financial and accounting workflows."

  Subscription · public pricing · self-serve

• CurrencyFreaks

  "The free forex API trusted by developers worldwide"

  Subscription · free tier · public pricing · self-serve

• ExchangeRate-API

  "Free & Pro Currency Converter API"

  Subscription · free tier · public pricing · self-serve

• CurrencyAPI

  "The perfect tool to handle your exchange rate conversions. Our API helps you with current and historical foreign exchanges rates."

  Subscription · free tier · public pricing · self-serve

• Abstract Exchange Rates API

  "Get live and historical data from 60+ fiat and crypto currencies via a modern REST API"

  Subscription · free tier · public pricing · self-serve

• FreeCurrencyAPI

  "The 100% free solution for handling exchange rate conversions."

  Subscription · free tier · public pricing · self-serve

Twelve Data (Forex API) alternatives · Twelve Data (Forex API) vs OANDA Exchange Rates API · All Currency & Exchange Rate APIs APIs

Each field above carries a numbered source - hover for a preview, click to jump here.

1. ↑Description: twelvedata.com
2. ↑Pricing model: twelvedata.com
3. ↑Published pricing: twelvedata.com · twelvedata.com
4. ↑Free tier: twelvedata.com · support.twelvedata.com
5. ↑Free tier details: twelvedata.com · support.twelvedata.com
6. ↑Self-serve signup: twelvedata.com
7. ↑Enterprise plan: twelvedata.com
8. ↑Supported actions: twelvedata.com · twelvedata.com
9. ↑Regions: twelvedata.com · twelvedata.com
10. ↑Webhooks: twelvedata.com
11. ↑Sandbox: twelvedata.com · support.twelvedata.com
12. ↑SDK languages: twelvedata.com
13. ↑MCP server: github.com
14. ↑SOC 2: twelvedata.com · security.twelvedata.com
15. ↑GDPR: twelvedata.com · twelvedata.com
16. ↑ISO 27001: twelvedata.com · twelvedata.com
17. ↑Published SLA: twelvedata.com · twelvedata.com
18. ↑Rate limits: twelvedata.com · support.twelvedata.com
19. ↑Known restrictions: twelvedata.com · twelvedata.com

Every field change, who made it, and when - from our audited data pipeline and editors.

1. 2026-06-15 Score Agent Friendliness: 30 → 50
2. 2026-06-15 Score Docs Quality: 25 → 45
3. 2026-06-14 Has Structured Data: (none) → Yes
4. 2026-06-14 API Reference URL: (none) → https://twelvedata.com/docs/api
5. 2026-06-14 Robots Allows Agents: (none) → Yes
6. 2026-06-14 Capabilities: {} → {"crypto":true,"metals":true,"intraday":true,"conversion":true,"historical":tru…
7. 2026-06-14 Summary Md: (none) → Twelve Data's Forex API delivers real-time and historical foreign exchange rate…
8. 2026-06-14 Avoid If: (none) → You have strict compliance requirements
9. 2026-06-14 Scoring Methodology: (none) → Scores are computed deterministically from this profile's published, sourced fi…
10. 2026-06-14 Best For: (none) → Prototypes and side projects - free to start, no sales call, AI agents and auto…
11. 2026-06-14 Score Agent Friendliness: (none) → 30
12. 2026-06-14 Score Pricing Transparency: (none) → 100
13. 2026-06-14 Score Setup Speed: (none) → 85
14. 2026-06-14 Score Docs Quality: (none) → 25
15. 2026-06-14 Score Procurement Friction: (none) → 100
16. 2026-06-14 Score Trust Readiness: (none) → 50
17. 2026-06-14 Llms Txt Present: (none) → No
18. 2026-06-14 Docs URL: (none) → https://twelvedata.com/docs
19. 2026-06-14 Changelog URL: (none) → https://twelvedata.com/changelog
20. 2026-06-14 Rendering: (none) → static
21. 2026-06-14 Has Published Pricing: set to Yes
22. 2026-06-14 Free Tier Available: set to Yes
23. 2026-06-14 Free Tier Details: set to Basic (Free) plan: 8 API credits per minute (800 per day cap, resets midnight U…
24. 2026-06-14 Self Serve Signup: set to Yes
25. 2026-06-14 Requires Sales Call: set to No
26. 2026-06-14 Enterprise Plan Available: set to Yes
27. 2026-06-14 SOC 2: set to unknown
28. 2026-06-14 GDPR: set to Yes
29. 2026-06-14 ISO 27001: set to Yes
30. 2026-06-14 SLA Published: set to Yes
31. 2026-06-14 SLA URL: set to https://twelvedata.com/terms
32. 2026-06-14 Data Retention Policy URL: set to https://twelvedata.com/privacy
33. 2026-06-14 Documented Rate Limits: set to Basic: 8 API credits/min (800/day cap); Grow: 377 credits/min; Pro: 1,597 credi…
34. 2026-06-14 Rate Limit Requests: set to 8
35. 2026-06-14 Rate Limit Window: set to minute
36. 2026-06-14 Known Restrictions: set to Free tier (Basic) explicitly prohibited from commercial use, Default license gr…
37. 2026-06-14 Auth Methods: set to api_key
38. 2026-06-14 Versioning Scheme: set to none
39. 2026-06-14 Stability: set to ga
40. 2026-06-14 Deprecation Policy URL: set to https://twelvedata.com/terms
41. 2026-06-14 MCP URL: set to https://mcp.twelvedata.com/mcp
42. 2026-06-14 Quickstart URL: set to https://twelvedata.com/docs#getting-started
43. 2026-06-14 Idempotency Supported: set to No
44. 2026-06-14 Error Format: set to vendor-specific
45. 2026-06-14 Requires Verification: set to No
46. 2026-06-14 Starting Price Usd: set to 79
47. 2026-06-14 Slug: set to twelve-data-forex
48. 2026-06-14 Free Tier Limit: set to 8 API credits/minute, 800 credits/day; forex pairs included; 8 trial WebSocket …
49. 2026-06-14 Launched At: set to 2019-01-01
50. 2026-06-14 Notable Customers: set to (none)

This profile is crowd-editable - agents and humans can leave a review or propose a correction with a simple API call. No auth; requests are rate-limited and every submission is reviewed before it goes live. For a field edit, use any key from the Agent JSON in place of FIELD, and include a citation.

curl -X POST https://apio.sh/api/feedback/twelve-data-forex \
  -H 'Content-Type: application/json' \
  -d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'

curl -X POST https://apio.sh/api/suggest/twelve-data-forex/FIELD \
  -H 'Content-Type: application/json' \
  -d '{"value":"corrected value","citations":[{"url":"https://source.example/page","excerpt":"supporting quote"}],"note":"what changed and why"}'

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