diff --git a/app/models/concerns/modelable.rb b/app/models/concerns/modelable.rb
new file mode 100644
index 000000000..0457d8cb4
--- /dev/null
+++ b/app/models/concerns/modelable.rb
@@ -0,0 +1,12 @@
+module Modelable
+  extend ActiveSupport::Concern
+  
+  module ClassMethods
+    def doi_from_url(url)
+      if /\A(?:(http|https):\/\/(dx\.)?(doi.org|handle.test.datacite.org)\/)?(doi:)?(10\.\d{4,5}\/.+)\z/.match(url)
+        uri = Addressable::URI.parse(url)
+        uri.path.gsub(/^\//, '').downcase
+      end
+    end
+  end
+end
\ No newline at end of file
diff --git a/app/models/event.rb b/app/models/event.rb
index 67ee72781..ce8cfb31b 100644
--- a/app/models/event.rb
+++ b/app/models/event.rb
@@ -1,4 +1,7 @@
 class Event
+  # include helper module for PORO models
+  include Modelable
+
   def self.find_by_id(id)
     return { errors: [{ "title" => "No id provided"} ] } unless id.present?
 
@@ -19,10 +22,12 @@ def self.find_by_id(id)
 
   def self.query(query, options={})
     size = options[:limit] || 100
+    doi = options[:doi].present? ? doi_from_url(options[:doi]) : nil
 
     url = "https://api.datacite.org/events?page[size]=#{size}"
     url += "&relation-type-id=#{options[:relation_type_id]}" if options[:relation_type_id].present?
     url += "&source-id=#{options[:source_id]}" if options[:source_id].present?
+    url += "&doi=#{doi}" if doi.present?
     
     response = Maremma.get(url, accept: "application/vnd.api+json; version=2")
 
diff --git a/app/models/funder.rb b/app/models/funder.rb
index fbc03f57b..97fc6c5ce 100644
--- a/app/models/funder.rb
+++ b/app/models/funder.rb
@@ -1,4 +1,7 @@
 class Funder
+  # include helper module for PORO models
+  include Modelable
+
   def self.find_by_id(id)
     doi = doi_from_url(id)
     return [] unless doi.present?
@@ -47,11 +50,4 @@ def self.parse_message(id: nil, message: nil)
       country: message["location"],
       date_modified: "2019-04-18T00:00:00Z" }.compact
   end
-
-  def self.doi_from_url(url)
-    if /\A(?:(http|https):\/\/(dx\.)?(doi.org|handle.test.datacite.org)\/)?(doi:)?(10\.\d{4,5}\/.+)\z/.match(url)
-      uri = Addressable::URI.parse(url)
-      uri.path.gsub(/^\//, '').downcase
-    end
-  end
 end
diff --git a/spec/fixtures/vcr_cassettes/Event/query/doi.yml b/spec/fixtures/vcr_cassettes/Event/query/doi.yml
new file mode 100644
index 000000000..321a8ac32
--- /dev/null
+++ b/spec/fixtures/vcr_cassettes/Event/query/doi.yml
@@ -0,0 +1,59 @@
+---
+http_interactions:
+- request:
+    method: get
+    uri: https://api.datacite.org/events?doi=10.7272/q6z60kzd&page%5Bsize%5D=100
+    body:
+      encoding: US-ASCII
+      string: ''
+    headers:
+      User-Agent:
+      - Mozilla/5.0 (compatible; Maremma/4.2.1; +https://github.com/datacite/maremma)
+      Accept:
+      - application/vnd.api+json; version=2
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Tue, 07 May 2019 05:56:19 GMT
+      Content-Type:
+      - application/json; charset=utf-8
+      Connection:
+      - keep-alive
+      Status:
+      - 200 OK
+      X-Anonymous-Consumer:
+      - 'true'
+      Cache-Control:
+      - max-age=0, private, must-revalidate
+      Vary:
+      - Accept-Encoding, Origin
+      Etag:
+      - W/"a74e70f82ccf1ea8a8efcdb7753ce387"
+      X-Runtime:
+      - '0.055483'
+      X-Request-Id:
+      - fa530925-c2a1-49b5-aff3-8de4409a72bc
+      X-Powered-By:
+      - Phusion Passenger 6.0.2
+      Server:
+      - nginx/1.15.8 + Phusion Passenger 6.0.2
+    body:
+      encoding: ASCII-8BIT
+      string: '{"data":[{"id":"758199db-95c9-4216-ae7a-70b9d00425d4","type":"events","attributes":{"subjId":"https://api.datacite.org/reports/08761bb6-f8d9-4d01-8012-fd21042fd71d","objId":"https://doi.org/10.7272/q6z60kzd","sourceId":"datacite-usage","relationTypeId":"total-dataset-investigations-regular","total":58,"messageAction":"create","sourceToken":"43ba99ae-5cf0-11e8-9c2d-fa7ae01bbebc","license":"https://creativecommons.org/publicdomain/zero/1.0/","occurredAt":"2018-05-31T00:00:00.000Z","timestamp":"2018-09-05T20:03:51.000Z"},"relationships":{"subj":{"data":{"id":"https://api.datacite.org/reports/08761bb6-f8d9-4d01-8012-fd21042fd71d","type":"objects"}},"obj":{"data":{"id":"https://doi.org/10.7272/q6z60kzd","type":"objects"}}}},{"id":"de42c435-144d-4320-811c-bb66202dfaf3","type":"events","attributes":{"subjId":"https://api.datacite.org/reports/08761bb6-f8d9-4d01-8012-fd21042fd71d","objId":"https://doi.org/10.7272/q6z60kzd","sourceId":"datacite-usage","relationTypeId":"unique-dataset-investigations-regular","total":6,"messageAction":"create","sourceToken":"43ba99ae-5cf0-11e8-9c2d-fa7ae01bbebc","license":"https://creativecommons.org/publicdomain/zero/1.0/","occurredAt":"2018-05-31T00:00:00.000Z","timestamp":"2018-09-05T20:03:58.141Z"},"relationships":{"subj":{"data":{"id":"https://api.datacite.org/reports/08761bb6-f8d9-4d01-8012-fd21042fd71d","type":"objects"}},"obj":{"data":{"id":"https://doi.org/10.7272/q6z60kzd","type":"objects"}}}},{"id":"0449c7e8-1ee2-48ec-b1fd-c7839b88b500","type":"events","attributes":{"subjId":"https://api.datacite.org/reports/2018-4-Dash","objId":"https://doi.org/10.7272/q6z60kzd","sourceId":"datacite-usage","relationTypeId":"total-dataset-requests-regular","total":23157,"messageAction":"create","sourceToken":"43ba99ae-5cf0-11e8-9c2d-fa7ae01bbebc","license":"https://creativecommons.org/publicdomain/zero/1.0/","occurredAt":"2018-04-30T00:00:00.000Z","timestamp":"2018-09-05T22:00:29.445Z"},"relationships":{"subj":{"data":{"id":"https://api.datacite.org/reports/2018-4-Dash","type":"objects"}},"obj":{"data":{"id":"https://doi.org/10.7272/q6z60kzd","type":"objects"}}}},{"id":"7ac4532e-52af-465d-a628-88a2e7165d78","type":"events","attributes":{"subjId":"https://api.datacite.org/reports/2018-4-Dash","objId":"https://doi.org/10.7272/q6z60kzd","sourceId":"datacite-usage","relationTypeId":"unique-dataset-requests-regular","total":179,"messageAction":"create","sourceToken":"43ba99ae-5cf0-11e8-9c2d-fa7ae01bbebc","license":"https://creativecommons.org/publicdomain/zero/1.0/","occurredAt":"2018-04-30T00:00:00.000Z","timestamp":"2018-09-05T22:00:35.566Z"},"relationships":{"subj":{"data":{"id":"https://api.datacite.org/reports/2018-4-Dash","type":"objects"}},"obj":{"data":{"id":"https://doi.org/10.7272/q6z60kzd","type":"objects"}}}},{"id":"5844e1d2-edc9-43dc-9d52-d070926ecc6b","type":"events","attributes":{"subjId":"https://api.datacite.org/reports/2018-4-Dash","objId":"https://doi.org/10.7272/q6z60kzd","sourceId":"datacite-usage","relationTypeId":"total-dataset-investigations-regular","total":7,"messageAction":"create","sourceToken":"43ba99ae-5cf0-11e8-9c2d-fa7ae01bbebc","license":"https://creativecommons.org/publicdomain/zero/1.0/","occurredAt":"2018-04-30T00:00:00.000Z","timestamp":"2018-09-05T22:00:41.215Z"},"relationships":{"subj":{"data":{"id":"https://api.datacite.org/reports/2018-4-Dash","type":"objects"}},"obj":{"data":{"id":"https://doi.org/10.7272/q6z60kzd","type":"objects"}}}},{"id":"242f47a5-5382-41f8-8506-1b934b9d8578","type":"events","attributes":{"subjId":"https://api.datacite.org/reports/2018-4-Dash","objId":"https://doi.org/10.7272/q6z60kzd","sourceId":"datacite-usage","relationTypeId":"unique-dataset-investigations-regular","total":7,"messageAction":"create","sourceToken":"43ba99ae-5cf0-11e8-9c2d-fa7ae01bbebc","license":"https://creativecommons.org/publicdomain/zero/1.0/","occurredAt":"2018-04-30T00:00:00.000Z","timestamp":"2018-09-05T22:00:46.682Z"},"relationships":{"subj":{"data":{"id":"https://api.datacite.org/reports/2018-4-Dash","type":"objects"}},"obj":{"data":{"id":"https://doi.org/10.7272/q6z60kzd","type":"objects"}}}},{"id":"344debf2-cde6-47a7-a11b-241e22514773","type":"events","attributes":{"subjId":"https://api.datacite.org/reports/d4cccd37-9044-4c59-85d4-f2063ce361cd","objId":"https://doi.org/10.7272/q6z60kzd","sourceId":"datacite-usage","relationTypeId":"total-dataset-investigations-regular","total":4,"messageAction":"create","sourceToken":"43ba99ae-5cf0-11e8-9c2d-fa7ae01bbebc","license":"https://creativecommons.org/publicdomain/zero/1.0/","occurredAt":"2018-06-30T00:00:00.000Z","timestamp":"2018-09-07T14:48:13.355Z"},"relationships":{"subj":{"data":{"id":"https://api.datacite.org/reports/d4cccd37-9044-4c59-85d4-f2063ce361cd","type":"objects"}},"obj":{"data":{"id":"https://doi.org/10.7272/q6z60kzd","type":"objects"}}}},{"id":"daba4b90-ed78-4479-93fd-b979d1008b75","type":"events","attributes":{"subjId":"https://api.datacite.org/reports/d4cccd37-9044-4c59-85d4-f2063ce361cd","ob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+        2018","sum":23171.0},{"id":"2018-05","title":"May 2018","sum":58.0},{"id":"2018-06","title":"June
+        2018","sum":4.0},{"id":"2018-08","title":"August 2018","sum":16.0},{"id":"2019-02","title":"February
+        2019","sum":11.0},{"id":"2019-03","title":"March 2019","sum":5.0},{"id":"2019-04","title":"April
+        2019","sum":2.0},{"id":"2019-05","title":"May 2019","sum":1.0}]},{"id":"unique-dataset-investigations-regular","title":"unique-dataset-investigations-regular","count":235.0,"yearMonths":[{"id":"2018-04","title":"April
+        2018","sum":192.0},{"id":"2018-05","title":"May 2018","sum":6.0},{"id":"2018-06","title":"June
+        2018","sum":3.0},{"id":"2018-08","title":"August 2018","sum":16.0},{"id":"2019-02","title":"February
+        2019","sum":10.0},{"id":"2019-03","title":"March 2019","sum":5.0},{"id":"2019-04","title":"April
+        2019","sum":2.0},{"id":"2019-05","title":"May 2019","sum":1.0}]},{"id":"total-dataset-requests-regular","title":"total-dataset-requests-regular","count":46314.0,"yearMonths":[{"id":"2018-04","title":"April
+        2018","sum":46314.0}]},{"id":"unique-dataset-requests-regular","title":"unique-dataset-requests-regular","count":358.0,"yearMonths":[{"id":"2018-04","title":"April
+        2018","sum":358.0}]}]},"links":{"self":"https://api.datacite.org/events?doi=10.7272%2Fq6z60kzd&page%5Bsize%5D=100","next":"https://api.datacite.org/events?doi=10.7272%2Fq6z60kzd&page%5Bnumber%5D=2&page%5Bsize%5D=100"}}'
+    http_version: 
+  recorded_at: Tue, 07 May 2019 05:56:19 GMT
+recorded_with: VCR 3.0.3
diff --git a/spec/models/event_spec.rb b/spec/models/event_spec.rb
index 714862662..c089682c6 100644
--- a/spec/models/event_spec.rb
+++ b/spec/models/event_spec.rb
@@ -39,6 +39,20 @@
       expect(response[:data].first).to eq(:id=>"308185f3-1607-478b-a25e-ed5671994db5", :subj_id=>"https://api.datacite.org/reports/fa2ad308-1b25-4394-9bc6-e0c7511e763d", :obj_id=>"https://doi.org/10.7272/q6g15xs4", :source_id=>"datacite-usage", :relation_type_id=>"total-dataset-investigations-regular", :total=>4)
     end
 
+    it "doi" do
+      doi = "https://doi.org/10.7272/q6z60kzd"
+      response = Event.query(nil, doi: doi)
+      expect(response[:data].size).to eq(22)
+      expect(response.dig(:meta, "relationTypes", 0, "yearMonths")).to eq([{"id"=>"2018-04", "title"=>"April 2018", "sum"=>23171.0},
+        {"id"=>"2018-05", "title"=>"May 2018", "sum"=>58.0},
+        {"id"=>"2018-06", "title"=>"June 2018", "sum"=>4.0},
+        {"id"=>"2018-08", "title"=>"August 2018", "sum"=>16.0},
+        {"id"=>"2019-02", "title"=>"February 2019", "sum"=>11.0},
+        {"id"=>"2019-03", "title"=>"March 2019", "sum"=>5.0},
+        {"id"=>"2019-04", "title"=>"April 2019", "sum"=>2.0},
+        {"id"=>"2019-05", "title"=>"May 2019", "sum"=>1.0}])
+    end
+
     it "not found" do
       source_id = "xxx"
       response = Event.query(nil, source_id: source_id)