ExchangeRate-API

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

• ███▒░░░░░░
  35 / 100
  Agent friendliness
• ██████████
  100 / 100
  Pricing transparency
• ████████▒░
  85 / 100
  Setup speed
• ███▒░░░░░░
  35 / 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

Two free tiers: (1) Keyed Free plan at $0/month - 1,500 requests/month, daily rate updates, access to Standard and Pair Conversion endpoints only, no credit card required, commercial use permitted. (2) Open Access (no-key) endpoint at open.er-api.com - unlimited but rate-limited (HTTP 429 if abused), daily updates, attribution required ('Rates By Exchange Rate API' with link), commercial caching permitted, redistribution prohibited.

Self-serve signup

✓ Yes

Requires sales call

✗ No

Enterprise plan

✓ Yes

• Historical rates
• Conversion endpoint

Supported actions

latest_rates, pair_conversion, enriched_data, historical_rates, supported_codes, request_quota, open_access_no_key [2]exchangerate-api.com/docs/overview“Standard Response, Pair Conversion, Enriched Data, Historical Data, Supported Codes, API Request Quota, Open Access”

Regions

161 world currencies covering approximately 99% of UN-recognized countries and territories, fiat currencies only - no metals or crypto (vendor states: 'We currently don't offer any data for commodity prices'), data sourced from 30+ central banks and commercial forex marketplaces, rates are blended indicative midpoint rates, update frequency: free/open = every 24 hours; Pro = every 60 minutes; Business/Volume = every 5 minutes, historical data: full coverage back to January 1 2021; limited 35-currency coverage back to January 1 1990

Input types

base currency code (ISO 4217), target currency code (ISO 4217), optional conversion amount (decimal), historical date (year/month/day)

Output types

JSON

Webhooks

✗ No [3]exchangerate-api.com/docs/overview“No webhook or push notification features are mentioned in the API documentation.”

Sandbox / test mode

✗ No [4]exchangerate-api.com/docs/overview“No sandbox or test environment is mentioned in this overview page.”

SDK languages

PHP, Python, Java, Ruby, Objective-C, Perl, C# [5]exchangerate-api.com/docs/overview“PHP, Python, Java, Ruby, Objective C, Perl, and C#”

MCP server

✗ No

SOC 2

– Unknown

HIPAA

– Unknown

GDPR

✓ Yes [6]exchangerate-api.com/terms“hCaptcha acts as a "data processor" under GDPR requirements”exchangerate-api.com/privacy“data processing is based on Art. 6(1)(f) of the GDPR”

ISO 27001

– Unknown

PCI DSS

– Unknown

Published SLA

✗ No [7]exchangerate-api.com/product/uptime“99.99% uptime in 2020 — presented as a past achievement, not a binding commitment; no formal SLA documented”exchangerate-api.com/terms“We cannot guarantee continuous, error-free or secure access to our Service”

Rate limits

Monthly quota limits by plan (1,500 / 30,000 / 125,000 requests/month); Open Access endpoint enforces per-IP rate limits (HTTP 429 for ~20 minutes on excess); no published per-second or per-minute limits. [8]exchangerate-api.com/docs/free“An IP exceeding limits receives HTTP 429 responses, with restrictions lasting approximately 20 minutes”exchangerate-api.com/docs/free“1,500 requests per month limit ... If you only request once every 24 hours you won't need to read any more of this section”

Known restrictions

No redistribution of rate data - 'data gathered from our API cannot be re-distributed - caching is for customer end-use only', Open Access (no-key) endpoint requires attribution: display 'Rates By Exchange Rate API' with link to exchangerate-api.com, Enriched Data endpoint restricted to Business and Volume plans only, Historical Data endpoint restricted to Pro, Business, and Volume plans only, No metals or commodity prices offered, No cryptocurrency data offered, Historical data not suitable for forex trading, cross-currency settlements, or backtesting day trading models (indicative midpoint rates only), Free plan limited to 1,500 requests/month with daily update frequency, Volume plan pricing only available annually ($700/year); monthly billing option not published

• Docs
• OpenAPI spec

Docs rendering: static

API style

rest

Base URL

https://v6.exchangerate-api.com/v6/

Version

v6

Versioning

url

Stability

ga

Auth methods

api_key

Idempotency keys

✗ No

Error format

vendor-specific

Rate limit

1500 / month

• Auth docs
• Quickstart
• Deprecation policy

Launched

2010-01-01

GA

2010-01-01

Notable customers

Mastercard, Salesforce, Accenture, PwC, Alibaba, Zoho, Cognizant

• 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

• 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

ExchangeRate-API alternatives · ExchangeRate-API 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: exchangerate-api.com
2. ↑Supported actions: exchangerate-api.com
3. ↑Webhooks: exchangerate-api.com
4. ↑Sandbox: exchangerate-api.com
5. ↑SDK languages: exchangerate-api.com
6. ↑GDPR: exchangerate-api.com · exchangerate-api.com
7. ↑Published SLA: exchangerate-api.com · exchangerate-api.com
8. ↑Rate limits: exchangerate-api.com · exchangerate-api.com

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

1. 2026-06-15 Score Agent Friendliness: 25 → 35
2. 2026-06-14 Has Structured Data: (none) → No
3. 2026-06-14 Robots Allows Agents: (none) → Yes
4. 2026-06-14 Capabilities: {} → {"conversion":true,"historical":true}
5. 2026-06-14 Summary Md: (none) → ExchangeRate-API is a REST currency conversion service covering 161 fiat curren…
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) → 25
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) → 35
15. 2026-06-14 Llms Txt Present: (none) → No
16. 2026-06-14 Docs URL: (none) → https://www.exchangerate-api.com/docs
17. 2026-06-14 Openapi Spec URL: (none) → https://www.exchangerate-api.com/openapi.yaml
18. 2026-06-14 Rendering: (none) → static
19. 2026-06-14 Free Tier Available: set to Yes
20. 2026-06-14 Free Tier Details: set to Two free tiers: (1) Keyed Free plan at $0/month - 1,500 requests/month, daily r…
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://www.exchangerate-api.com/terms
27. 2026-06-14 Documented Rate Limits: set to Monthly quota limits by plan (1,500 / 30,000 / 125,000 requests/month); Open Ac…
28. 2026-06-14 Rate Limit Requests: set to 1500
29. 2026-06-14 Rate Limit Window: set to month
30. 2026-06-14 Known Restrictions: set to No redistribution of rate data - 'data gathered from our API cannot be re-distr…
31. 2026-06-14 Auth Methods: set to api_key
32. 2026-06-14 Auth Docs URL: set to https://www.exchangerate-api.com/docs/authentication
33. 2026-06-14 API Style: set to rest
34. 2026-06-14 Base URL: set to https://v6.exchangerate-api.com/v6/
35. 2026-06-14 API Version: set to v6
36. 2026-06-14 Versioning Scheme: set to url
37. 2026-06-14 Stability: set to ga
38. 2026-06-14 Deprecation Policy URL: set to https://www.exchangerate-api.com/product/long-term-support
39. 2026-06-14 Quickstart URL: set to https://www.exchangerate-api.com/docs/standard-requests
40. 2026-06-14 Idempotency Supported: set to No
41. 2026-06-14 Error Format: set to vendor-specific
42. 2026-06-14 Requires Verification: set to Yes
43. 2026-06-14 Starting Price Usd: set to 10
44. 2026-06-14 Slug: set to exchangerate-api
45. 2026-06-14 Free Tier Limit: set to 1,500 requests/month (keyed free plan); also unauthenticated open-access endpoi…
46. 2026-06-14 Launched At: set to 2010-01-01
47. 2026-06-14 GA Date: set to 2010-01-01
48. 2026-06-14 Notable Customers: set to Mastercard, Salesforce, Accenture, PwC, Alibaba, Zoho, Cognizant
49. 2026-06-14 Fields Not Found: set to soc2, hipaa, iso_27001, pci_dss, Volume plan monthly request limit (not publish…
50. 2026-06-14 Source Confidence: set to high

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.

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

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