CurrencyAPI

Best for: Prototypes and side projects - free to start, no sales call; Cost-sensitive teams - low, transparent entry price

Avoid if: You have strict compliance requirements

• ██░░░░░░░░
  20 / 100
  Agent friendliness
• ██████████
  100 / 100
  Pricing transparency
• ████████▒░
  85 / 100
  Setup speed
• █▒░░░░░░░░
  15 / 100
  Docs quality
• ██████████
  100 / 100
  Procurement ease
• ███▒░░░░░░
  35 / 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

Published pricing

✓ Yes

Free tier

✓ Yes

Free tier details

Free plan at $0/month: 300 requests/month, 10 requests/min rate limit, daily rate updates, private use only (non-commercial), 1 API key.

Self-serve signup

✓ Yes [2]currencyapi.com/docs/quickstart“grab your API key from your dashboard at app.currencyapi.com/dashboard”

Requires sales call

✗ No

Enterprise plan

✓ Yes [3]currencyapi.com/pricing“Custom: Custom pricing, Custom request allocation, Custom API keys, tailored support”

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

Supported actions

latest_rates, historical_rates, range_historical_rates, convert, currencies_list, status [4]currencyapi.com/docs/“Status Endpoint, Currencies Endpoint, Latest Exchange Rates, Historical Exchange Rates, Range Historical Exchange Rates, Convert Exchange Rates”

Regions

170+ currencies including fiat, precious metals (XAU, XAG, XPT, XPD), and cryptocurrencies (BTC, ETH, BNB, XRP, SOL, and others), Flexible base currency (default USD), Update frequency varies by plan: daily (Free), hourly (Small), every 60 seconds (Medium/Large/Custom)

Input types

currency code (ISO 4217), base_currency, currencies (comma-separated filter), type (fiat | metal | crypto), date (YYYY-MM-DD), datetime_start (ISO8601), datetime_end (ISO8601), accuracy (day | hour | quarter_hour | minute), value (amount for conversion), API key (header or query param)

Output types

JSON

Webhooks

✗ No [5]currencyapi.com/docs/“Six main endpoints: Status, Currencies, Latest Exchange Rates, Historical Exchange Rates, Range Historical Exchange Rates, Convert Exchange Rates — no webhook endpoint listed”

Sandbox / test mode

✗ No [6]currencyapi.com/docs/authentication“The only endpoint mentioned is the production URL: https://api.currencyapi.com/v3/ — no separate sandbox URL or environment exists; sandbox keys hit the same production endpoint”currencyapi.com/docs/testing“All request with sandbox keys will respond with dummy data.”

SDK languages

JavaScript (Node.js), Python, PHP, Ruby, C#, Go, Rust, R [7]currencyapi.com/docs/sdks“PHP, Ruby, Node.js, Python, Go, C#, R, Rust”

MCP server

✗ No

SOC 2

– Unknown

HIPAA

– Unknown

GDPR

✓ Yes [8]currencyapi.com/privacy-policy/“Users have rights including: Withdraw previously given consent, Request access to their data, Have data deleted, Receive data and transfer it to another provider”currencyapi.com/privacy-policy/“Data Controller: Everapi GmbH (Austria)”

ISO 27001

– Unknown

PCI DSS

– Unknown

Published SLA

✓ Yes [9]currencyapi.com/pricing“The API has had an uptime of 99.99% throughout the last 12 months”currencyapi.com/pricing“Large plan includes 'SLA'; Custom plan offers 'Custom SLA'”

Rate limits

Free: 10 requests/min; Small and above: unlimited per-minute rate; monthly quotas: Free 300, Small 15,000, Medium 600,000, Large 1,700,000 [10]currencyapi.com/pricing“Free tier: 10 Requests / Min.; Small and above: unlimited rate limit”currencyapi.com/docs/rate-limit“Only successful calls count against your quota. Any error on our side or validation errors (e.g., wrong parameter) will NOT count against your quota or rate limit.”

Known restrictions

Free tier is private use only - commercial use requires paid plan, Free tier: daily rate updates only (not real-time), Sandbox API keys available on Medium plan and above only; sandbox uses same production endpoint (api.currencyapi.com/v3/) returning dummy data - not a separate sandbox environment, Sandbox /currencies endpoint returns only three currencies (dummy data), Rate updates every 60 seconds only on Medium, Large, and Custom plans, SLA is a plan feature on Large and Custom plans only; not guaranteed on Free/Small/Medium, Content redistribution/reselling prohibited unless given prior written approval

• Docs

Docs rendering: static

API style

rest

Base URL

https://api.currencyapi.com

Version

v3

Versioning

url

Stability

ga

Auth methods

api_key

Error format

vendor-specific

Rate limit

10 / minute

SDKs

• JavaScript (Node.js) @everapi/currencyapi-js · repo
• Python currencyapicom · repo
• PHP everapi/currencyapi-php · repo
• Ruby currencyapi · repo
• C# Currencyapi · repo
• Go currencyapi-go · repo
• Rust currencyapi-rs · repo
• R currencyapi · repo

• Auth docs
• Quickstart

Notable customers

Breatheilo GmbH

• Twelve Data (Forex API)

  "Real-time foreign exchange rates API and historical forex data for 140 world currencies."

  Subscription · free tier · public pricing · self-serve

• 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

• 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

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

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

1. ↑Description: currencyapi.com
2. ↑Self-serve signup: currencyapi.com
3. ↑Enterprise plan: currencyapi.com
4. ↑Supported actions: currencyapi.com
5. ↑Webhooks: currencyapi.com
6. ↑Sandbox: currencyapi.com · currencyapi.com
7. ↑SDK languages: currencyapi.com
8. ↑GDPR: currencyapi.com · currencyapi.com
9. ↑Published SLA: currencyapi.com · currencyapi.com
10. ↑Rate limits: currencyapi.com · currencyapi.com

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

1. 2026-06-15 Score Agent Friendliness: 10 → 20
2. 2026-06-14 Robots Allows Agents: (none) → Yes
3. 2026-06-14 Has Structured Data: (none) → No
4. 2026-06-14 Capabilities: {} → {"crypto":true,"metals":true,"intraday":true,"conversion":true,"historical":tru…
5. 2026-06-14 Summary Md: (none) → CurrencyAPI is a REST-based exchange rate service covering 170+ currencies incl…
6. 2026-06-14 Score Procurement Friction: (none) → 100
7. 2026-06-14 Best For: (none) → Prototypes and side projects - free to start, no sales call, Cost-sensitive tea…
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 Score Trust Readiness: (none) → 35
11. 2026-06-14 Score Agent Friendliness: (none) → 10
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) → 15
15. 2026-06-14 Llms Txt Present: (none) → No
16. 2026-06-14 Docs URL: (none) → https://currencyapi.com/docs
17. 2026-06-14 Rendering: (none) → static
18. 2026-06-14 Has Published Pricing: set to Yes
19. 2026-06-14 Free Tier Available: set to Yes
20. 2026-06-14 Free Tier Details: set to Free plan at $0/month: 300 requests/month, 10 requests/min rate limit, daily ra…
21. 2026-06-14 Self Serve Signup: set to Yes
22. 2026-06-14 Requires Sales Call: set to No
23. 2026-06-14 Enterprise Plan Available: set to Yes
24. 2026-06-14 GDPR: set to Yes
25. 2026-06-14 SLA Published: set to Yes
26. 2026-06-14 Data Retention Policy URL: set to https://currencyapi.com/imprint/
27. 2026-06-14 Documented Rate Limits: set to Free: 10 requests/min; Small and above: unlimited per-minute rate; monthly quot…
28. 2026-06-14 Rate Limit Requests: set to 10
29. 2026-06-14 Rate Limit Window: set to minute
30. 2026-06-14 Known Restrictions: set to Free tier is private use only - commercial use requires paid plan, Free tier: d…
31. 2026-06-14 Auth Methods: set to api_key
32. 2026-06-14 Auth Docs URL: set to https://currencyapi.com/docs/authentication
33. 2026-06-14 API Style: set to rest
34. 2026-06-14 Base URL: set to https://api.currencyapi.com
35. 2026-06-14 API Version: set to v3
36. 2026-06-14 Versioning Scheme: set to url
37. 2026-06-14 Stability: set to ga
38. 2026-06-14 Quickstart URL: set to https://currencyapi.com/docs/quickstart
39. 2026-06-14 Error Format: set to vendor-specific
40. 2026-06-14 Requires Verification: set to No
41. 2026-06-14 Starting Price Usd: set to 9.99
42. 2026-06-14 Slug: set to currencyapi
43. 2026-06-14 Free Tier Limit: set to 300 requests/month
44. 2026-06-14 Notable Customers: set to Breatheilo GmbH
45. 2026-06-14 Fields Not Found: set to data_sources (vendor says 'trusted data sources' but does not name them), soc2,…
46. 2026-06-14 Source Confidence: set to high
47. 2026-06-14 Extractor: set to claude-subagent:sonnet
48. 2026-06-14 Last Verified At: set to 2026-06-14T00:00:00.000Z
49. 2026-06-14 Status: set to published
50. 2026-06-14 Price Basis: set to month

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/currencyapi \
  -H 'Content-Type: application/json' \
  -d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'

curl -X POST https://apio.sh/api/suggest/currencyapi/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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