Exchange Rates API (exchangeratesapi.io)

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
• ███████░░░
  70 / 100
  Setup speed
• █▒░░░░░░░░
  15 / 100
  Docs quality
• ██████████
  100 / 100
  Procurement ease
• █▒░░░░░░░░
  15 / 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: $0/month, 100 requests/month, daily rate updates, historical rates access, no HTTPS encryption, no source currency switching (base locked to EUR), no support. Free for lifetime, no credit card required.

Self-serve signup

✓ Yes [2]manage.exchangeratesapi.io/signup/free“Self-serve signup available at manage.exchangeratesapi.io/signup/free”

Requires sales call

✗ No

Enterprise plan

✓ Yes [3]exchangeratesapi.io/pricing/“Custom/Enterprise Plan - Pricing: Contact for quote - Request limit: Unlimited volume options - Support: Dedicated technical support”

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

Supported actions

symbols, latest_rates, historical_rates, convert, time_series, fluctuation [4]exchangeratesapi.io/documentation/“GET /v1/symbols, GET /v1/latest, GET /v1/{YYYY-MM-DD}, GET /v1/convert, GET /v1/timeseries, GET /v1/fluctuation”

Regions

200+ world currencies including precious metals (XAU Gold, XAG Silver) and Bitcoin (BTC), historical data back to 1999, data refreshed daily (free), every 60 minutes (Basic), every 10 minutes (Professional), every 60 seconds (Business/Enterprise), default base currency EUR; source currency switching available on paid plans only

Input types

access_key (API key), base currency (ISO 4217 3-letter code), symbols filter (comma-separated currency codes), date (YYYY-MM-DD for historical), start_date and end_date (for time-series/fluctuation), from, to, amount (for convert endpoint), callback (for JSONP)

Output types

JSON, JSONP (via callback parameter) [5]exchangeratesapi.io/documentation/“JSON only - all responses returned in standard JSON format; JSONP callbacks supported via callback parameter”

Webhooks

✗ No

Sandbox / test mode

✗ No

SDK languages

Unknown

MCP server

✗ No

SOC 2

– Unknown

HIPAA

– Unknown

GDPR

✓ Yes [6]exchangeratesapi.io/privacy/“we are committed to facilitate the exercise of your rights granted by the EU General Data Protection Regulation”

ISO 27001

– Unknown

PCI DSS

– Unknown

Published SLA

✗ No [7]exchangeratesapi.io/faq/“We are proud to have an average uptime rate of nearly 100% (99.9%), calculated based on the past 12 months.”exchangeratesapi.io/terms/“THE COMPANY MAKES NO WARRANTY THAT: (B) THE SITE WILL BE AVAILABLE ON AN UNINTERRUPTED, TIMELY, SECURE, OR ERROR-FREE BASIS.”

Rate limits

Monthly request quotas per plan: 100 (Free), 10,000 (Basic), 100,000 (Professional), 500,000 (Business). Overage charges apply beyond quota. Notifications at 75%, 90%, and 100% usage. [8]exchangeratesapi.io/pricing/“Free Plan: 100 API Calls, Basic: 10,000, Professional: 100,000, Business: 500,000”exchangeratesapi.io/billing-overages-documentation/“Customers receive automatic notifications at 75%, 90%, and 100% of monthly quota”

Known restrictions

Free plan base currency locked to EUR (source currency switching not available), Free plan does not include HTTPS/SSL encryption, Free plan limited to 100 requests/month with daily updates only, Time-series endpoint available on Professional plan and above only, Fluctuation endpoint available on Business plan and above only, Convert endpoint requires Basic plan or above, Historical data access limited by plan tier, Data redistribution prohibited per terms of service, API operated by apilayer Data Products GmbH (Idera group) [9]exchangeratesapi.io/documentation/“Provided changing base currency is supported on your subscription plan, you can change the currency to which your output currency rates are relative to by appending the base parameter”exchangeratesapi.io/terms/“redistributing Content provided on or through Community Services is forbidden”exchangeratesapi.io/pricing/“HTTPS Encryption is listed as a feature starting with the Basic paid plan, implying it's unavailable on the free tier”

• Docs
• Status page

Docs rendering: static

API style

rest

Base URL

https://api.exchangeratesapi.io/v1/

Version

v1

Versioning

url

Stability

ga

Auth methods

api_key

Error format

vendor-specific

Rate limit

100 / month

• Auth docs
• Quickstart

• 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

• 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

Exchange Rates API (exchangeratesapi.io) alternatives · Exchange Rates API (exchangeratesapi.io) 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: exchangeratesapi.io
2. ↑Self-serve signup: manage.exchangeratesapi.io
3. ↑Enterprise plan: exchangeratesapi.io
4. ↑Supported actions: exchangeratesapi.io
5. ↑Output types: exchangeratesapi.io
6. ↑GDPR: exchangeratesapi.io
7. ↑Published SLA: exchangeratesapi.io · exchangeratesapi.io
8. ↑Rate limits: exchangeratesapi.io · exchangeratesapi.io
9. ↑Known restrictions: exchangeratesapi.io · exchangeratesapi.io · exchangeratesapi.io

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) → Exchange Rates API (exchangeratesapi.io) is a REST API delivering real-time and…
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) → 15
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) → 70
14. 2026-06-14 Score Docs Quality: (none) → 15
15. 2026-06-14 Rendering: (none) → static
16. 2026-06-14 Docs URL: (none) → https://exchangeratesapi.io/documentation
17. 2026-06-14 Status Page URL: (none) → https://status.exchangeratesapi.io
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: $0/month, 100 requests/month, daily rate updates, historical rates a…
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 No
26. 2026-06-14 Data Retention Policy URL: set to https://exchangeratesapi.io/privacy/
27. 2026-06-14 Documented Rate Limits: set to Monthly request quotas per plan: 100 (Free), 10,000 (Basic), 100,000 (Professio…
28. 2026-06-14 Rate Limit Requests: set to 100
29. 2026-06-14 Rate Limit Window: set to month
30. 2026-06-14 Known Restrictions: set to Free plan base currency locked to EUR (source currency switching not available)…
31. 2026-06-14 Auth Methods: set to api_key
32. 2026-06-14 Auth Docs URL: set to https://exchangeratesapi.io/documentation/
33. 2026-06-14 API Style: set to rest
34. 2026-06-14 Base URL: set to https://api.exchangeratesapi.io/v1/
35. 2026-06-14 API Version: set to v1
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://exchangeratesapi.io/documentation/
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 14.99
42. 2026-06-14 Slug: set to exchangeratesapi-io
43. 2026-06-14 Free Tier Limit: set to 100 requests/month
44. 2026-06-14 Notable Customers: set to (none)
45. 2026-06-14 Fields Not Found: set to iso_27001, soc2, hipaa, pci_dss, sdk_languages, mcp_server_available, launched_…
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/exchangeratesapi-io \
  -H 'Content-Type: application/json' \
  -d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'

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