{"id":41255,"date":"2026-06-03T21:27:20","date_gmt":"2026-06-03T19:27:20","guid":{"rendered":"https:\/\/www.graviton.at\/letterswaplibrary\/self-promotion-25-years-of-official-west-african-fx-rates-daily-data-from-central-banks-now-in-one-api\/"},"modified":"2026-06-03T21:27:20","modified_gmt":"2026-06-03T19:27:20","slug":"self-promotion-25-years-of-official-west-african-fx-rates-daily-data-from-central-banks-now-in-one-api","status":"publish","type":"post","link":"https:\/\/www.graviton.at\/letterswaplibrary\/self-promotion-25-years-of-official-west-african-fx-rates-daily-data-from-central-banks-now-in-one-api\/","title":{"rendered":"[self-promotion] 25 Years Of Official West African FX Rates \u2014 Daily Data From Central Banks, Now In One API"},"content":{"rendered":"<p><!-- SC_OFF --><\/p>\n<div class=\"md\">\n<p>Been working on a gap I kept running into: getting official, <\/p>\n<p>daily FX rates for West African countries programmatically.<\/p>\n<p>The World Bank has this data but with a 6-12 month lag. <\/p>\n<p>Everything else is either paywalled or scraped from aggregators <\/p>\n<p>with no attribution.<\/p>\n<p>So I built an actor that pulls directly from the issuing <\/p>\n<p>central banks \u2014 CBN Nigeria, Bank of Ghana, BCEAO for the 8 <\/p>\n<p>WAEMU nations, and Banco de Cabo Verde. 11 countries, 4 <\/p>\n<p>currencies, history back to 1996 in some cases.<\/p>\n<p>A few things I found interesting while building it:<\/p>\n<p>The 8 WAEMU countries (C\u00f4te d&#8217;Ivoire, Senegal, Mali etc.) <\/p>\n<p>share a currency pegged to the euro by treaty since 1999 \u2014 <\/p>\n<p>at exactly 655.957 XOF\/EUR, never changed. There&#8217;s no <\/p>\n<p>independently set USD rate, it&#8217;s mathematically derived from <\/p>\n<p>the ECB daily reference rate. <\/p>\n<p>Every output record carries the source bank, URL, retrieval <\/p>\n<p>timestamp and licence note \u2014 CBN explicitly grants permission <\/p>\n<p>to copy with attribution which made things cleaner legally.<\/p>\n<p>Available here if useful: <a href=\"https:\/\/apify.com\/malmon\/west-africa-fx-rates\">https:\/\/apify.com\/malmon\/west-africa-fx-rates<\/a> <\/p>\n<p>Happy to answer questions about coverage or methodology.<\/p>\n<\/div>\n<p><!-- SC_ON -->   submitted by   <a href=\"https:\/\/www.reddit.com\/user\/g_kalle\"> \/u\/g_kalle <\/a> <br \/> <span><a href=\"https:\/\/www.reddit.com\/r\/datasets\/comments\/1tvy9yu\/selfpromotion_25_years_of_official_west_african\/\">[link]<\/a><\/span>   <span><a href=\"https:\/\/www.reddit.com\/r\/datasets\/comments\/1tvy9yu\/selfpromotion_25_years_of_official_west_african\/\">[comments]<\/a><\/span><\/p><div class='watch-action'><div class='watch-position align-right'><div class='action-like'><a class='lbg-style1 like-41255 jlk' href='javascript:void(0)' data-task='like' data-post_id='41255' data-nonce='bc39e8310e' rel='nofollow'><img class='wti-pixel' src='https:\/\/www.graviton.at\/letterswaplibrary\/wp-content\/plugins\/wti-like-post\/images\/pixel.gif' title='Like' \/><span class='lc-41255 lc'>0<\/span><\/a><\/div><\/div> <div class='status-41255 status align-right'><\/div><\/div><div class='wti-clear'><\/div>","protected":false},"excerpt":{"rendered":"<p>Been working on a gap I kept running into: getting official, daily FX rates for West African&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[85],"tags":[],"class_list":["post-41255","post","type-post","status-publish","format-standard","hentry","category-datatards","wpcat-85-id"],"_links":{"self":[{"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/posts\/41255","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/comments?post=41255"}],"version-history":[{"count":0,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/posts\/41255\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/media?parent=41255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/categories?post=41255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/tags?post=41255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}