diff --git a/app/lib/api_particulier/api.rb b/app/lib/api_particulier/api.rb
index ba2207c22..1805d71db 100644
--- a/app/lib/api_particulier/api.rb
+++ b/app/lib/api_particulier/api.rb
@@ -5,6 +5,7 @@ class APIParticulier::API
   COMPOSITION_FAMILIALE_RESOURCE_NAME = "v2/composition-familiale"
   AVIS_IMPOSITION_RESOURCE_NAME = "v2/avis-imposition"
   SITUATION_POLE_EMPLOI = "v2/situations-pole-emploi"
+  ETUDIANTS_RESOURCE_NAME = "v2/etudiants"
 
   TIMEOUT = 20
 
@@ -34,6 +35,16 @@ class APIParticulier::API
     get(SITUATION_POLE_EMPLOI, identifiant: identifiant)
   end
 
+  def etudiants(ine)
+    # NOTE: Paramètres d'appel mutuellement exclusifs,
+    # l'appel par INE est réservé aux acteurs de la sphère de l'enseignement
+    # - INE, l'Identifiant National Étudiant
+    # - état civil, constitué du nom, prénom, date de naissance, sexe et lieu de naissance
+
+    # TODO: ajouter le support de l'état civil
+    get(ETUDIANTS_RESOURCE_NAME, ine: ine)
+  end
+
   private
 
   def get(resource_name, params = {})
diff --git a/app/lib/api_particulier/mesri_adapter.rb b/app/lib/api_particulier/mesri_adapter.rb
new file mode 100644
index 000000000..ea27f4168
--- /dev/null
+++ b/app/lib/api_particulier/mesri_adapter.rb
@@ -0,0 +1,48 @@
+class APIParticulier::MesriAdapter
+  class InvalidSchemaError < ::StandardError
+    def initialize(errors)
+      super(errors.map(&:to_json).join("\n"))
+    end
+  end
+
+  def initialize(api_particulier_token, ine, requested_sources)
+    @api = APIParticulier::API.new(api_particulier_token)
+    @ine = ine
+    @requested_sources = requested_sources
+  end
+
+  def to_params
+    @api.etudiants(@ine)
+      .tap  { |d| ensure_valid_schema!(d) }
+      .then { |d| extract_requested_sources(d) }
+  end
+
+  private
+
+  def ensure_valid_schema!(data)
+    if !schemer.valid?(data)
+      errors = schemer.validate(data).to_a
+      raise InvalidSchemaError.new(errors)
+    end
+  end
+
+  def schemer
+    @schemer ||= JSONSchemer.schema(Rails.root.join('app/schemas/etudiants.json'))
+  end
+
+  def extract_requested_sources(data)
+    @requested_sources['mesri']&.map do |(scope, sources)|
+      case scope
+      when 'inscriptions'
+        { scope => data[scope].filter_map { |d| d.slice(*sources) if d.key?('dateDebutInscription') } }
+      when 'admissions'
+        { scope => data['inscriptions'].filter_map { |d| d.slice(*sources) if d.key?('dateDebutAdmission') } }
+      when 'etablissements'
+        { scope => data['inscriptions'].map { |d| d['etablissement'].slice(*sources) }.uniq }
+      else
+        { scope => data.slice(*sources) }
+      end
+    end
+      &.flatten&.reduce(&:deep_merge) || {}
+  end
+end
diff --git a/app/schemas/etudiants.json b/app/schemas/etudiants.json
new file mode 100644
index 000000000..2b302ed20
--- /dev/null
+++ b/app/schemas/etudiants.json
@@ -0,0 +1,57 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "$id": "http://demarches-simplifiees.fr/etudiants.schema.json",
+  "title": "statut étudiant",
+  "type": "object",
+  "properties": {
+    "ine": {
+      "type": "string"
+    },
+    "nom": {
+      "type": "string"
+    },
+    "prenom": {
+      "type": "string"
+    },
+    "dateNaissance": {
+      "format": "date",
+      "type": "string"
+    },
+    "inscriptions": {
+      "type": "array",
+      "items" : {
+        "type": "object",
+        "properties": {
+          "dateDebutInscription": {
+            "format": "date",
+            "type": "string"
+          },
+          "dateFinInscription": {
+            "format": "date",
+            "type": "string"
+          },
+          "statut": {
+            "enum": ["admis", "inscrit"]
+          },
+          "regime": {
+            "enum": ["formation initiale", "formation continue"]
+          },
+          "codeCommune": {
+            "type": "string"
+          },
+          "etablissement": {
+            "type": "object",
+            "properties": {
+              "uai": {
+                "type": "string"
+              },
+              "nom": {
+                "type": "string"
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/spec/fixtures/cassettes/api_particulier/success/etudiants.yml b/spec/fixtures/cassettes/api_particulier/success/etudiants.yml
new file mode 100644
index 000000000..2b80f807b
--- /dev/null
+++ b/spec/fixtures/cassettes/api_particulier/success/etudiants.yml
@@ -0,0 +1,83 @@
+---
+http_interactions:
+- request:
+    method: get
+    uri: https://particulier.api.gouv.fr/api/v2/etudiants?ine=090601811AB
+    body:
+      encoding: US-ASCII
+      string: ''
+    headers:
+      User-Agent:
+      - demarches-simplifiees.fr
+      Accept:
+      - application/json
+      X-Api-Key:
+      - c6d23f3900b8fb4b3586c4804c051af79062f54b
+      Expect:
+      - ''
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Tue, 16 Mar 2021 17:01:19 GMT
+      Content-Type:
+      - application/json; charset=utf-8
+      Content-Length:
+      - '805'
+      Connection:
+      - keep-alive
+      Keep-Alive:
+      - timeout=5
+      Access-Control-Allow-Credentials:
+      - 'true'
+      Access-Control-Expose-Headers:
+      - Range,Content-Range,X-Content-Range,X-API-Key
+      Etag:
+      - W/"2eb-A0NiRd+gbJKIAT0y4tR4j9tjXb0"
+      Server:
+      - nginx
+      Strict-Transport-Security:
+      - max-age=15552000
+      - max-age=15552000
+      Vary:
+      - Origin, Accept
+      X-Gravitee-Request-Id:
+      - 7bfb7f99-ac2d-4443-bb7f-99ac2d0443c5
+      X-Gravitee-Transaction-Id:
+      - f5dca8b3-2ab7-4c9a-9ca8-b32ab70c9a2b
+    body:
+      encoding: ASCII-8BIT
+      string: '{
+        "ine": "090601811AB",
+        "nom": "DUBOIS",
+        "prenom": "Angela Claire Louise",
+        "dateNaissance": "1962-08-24",
+        "inscriptions": [
+          {
+            "statut": "admis",
+            "regime": "formation continue",
+            "dateDebutAdmission": "2021-09-01T00:00:00.000Z",
+            "dateFinAdmission": "2022-08-31T00:00:00.000Z",
+            "etablissement": {
+              "uai": "0751722P",
+              "nom": "Université Pierre et Marie Curie - UPCM (Paris 6)"
+            },
+            "codeCommune": "75106"
+          },
+          {
+            "statut": "inscrit",
+            "regime": "formation continue",
+            "dateDebutInscription": "2022-09-01",
+            "dateFinInscription": "2023-08-31",
+            "etablissement": {
+              "uai": "0751722P",
+              "nom": "Université Pierre et Marie Curie - UPCM (Paris 6)"
+            },
+            "codeCommune": "75106"
+          }
+        ]
+      }'
+  recorded_at: Tue, 16 Mar 2021 17:01:18 GMT
+recorded_with: VCR 6.0.0
diff --git a/spec/fixtures/cassettes/api_particulier/success/etudiants_invalid.yml b/spec/fixtures/cassettes/api_particulier/success/etudiants_invalid.yml
new file mode 100644
index 000000000..8b1c31f69
--- /dev/null
+++ b/spec/fixtures/cassettes/api_particulier/success/etudiants_invalid.yml
@@ -0,0 +1,83 @@
+---
+http_interactions:
+- request:
+    method: get
+    uri: https://particulier.api.gouv.fr/api/v2/etudiants?ine=090601811AB
+    body:
+      encoding: US-ASCII
+      string: ''
+    headers:
+      User-Agent:
+      - demarches-simplifiees.fr
+      Accept:
+      - application/json
+      X-Api-Key:
+      - c6d23f3900b8fb4b3586c4804c051af79062f54b
+      Expect:
+      - ''
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Tue, 16 Mar 2021 17:01:19 GMT
+      Content-Type:
+      - application/json; charset=utf-8
+      Content-Length:
+      - '806'
+      Connection:
+      - keep-alive
+      Keep-Alive:
+      - timeout=5
+      Access-Control-Allow-Credentials:
+      - 'true'
+      Access-Control-Expose-Headers:
+      - Range,Content-Range,X-Content-Range,X-API-Key
+      Etag:
+      - W/"2eb-A0NiRd+gbJKIAT0y4tR4j9tjXb0"
+      Server:
+      - nginx
+      Strict-Transport-Security:
+      - max-age=15552000
+      - max-age=15552000
+      Vary:
+      - Origin, Accept
+      X-Gravitee-Request-Id:
+      - 7bfb7f99-ac2d-4443-bb7f-99ac2d0443c5
+      X-Gravitee-Transaction-Id:
+      - f5dca8b3-2ab7-4c9a-9ca8-b32ab70c9a2b
+    body:
+      encoding: ASCII-8BIT
+      string: '{
+        "ine": "090601811AB",
+        "nom": "DUBOIS",
+        "prenom": "Angela Claire Louise",
+        "dateNaissance": "1962-08-24",
+        "inscriptions": [
+          {
+            "statut": "absent",
+            "regime": "formation continue",
+            "dateDebutAdmission": "2021-09-01T00:00:00.000Z",
+            "dateFinAdmission": "2022-08-31T00:00:00.000Z",
+            "etablissement": {
+              "uai": "0751722P",
+              "nom": "Université Pierre et Marie Curie - UPCM (Paris 6)"
+            },
+            "codeCommune": "75106"
+          },
+          {
+            "statut": "inscrit",
+            "regime": "formation continue",
+            "dateDebutInscription": "2022-09-01",
+            "dateFinInscription": "2023-08-31",
+            "etablissement": {
+              "uai": "0751722P",
+              "nom": "Université Pierre et Marie Curie - UPCM (Paris 6)"
+            },
+            "codeCommune": "75106"
+          }
+        ]
+      }'
+  recorded_at: Tue, 16 Mar 2021 17:01:18 GMT
+recorded_with: VCR 6.0.0
diff --git a/spec/fixtures/files/api_particulier/etudiants.json b/spec/fixtures/files/api_particulier/etudiants.json
new file mode 100644
index 000000000..25ee0bd67
--- /dev/null
+++ b/spec/fixtures/files/api_particulier/etudiants.json
@@ -0,0 +1,34 @@
+{
+  "identifiant": {
+    "ine": "090601811AB"
+  },
+  "identite": {
+    "nom": "DUBOIS",
+    "prenom": "Angela Claire Louise",
+    "dateNaissance": "1962-08-24"
+  },
+  "admissions": [
+    {
+      "statut": "admis",
+      "regime": "formation continue",
+      "dateDebutAdmission": "2021-09-01T00:00:00.000Z",
+      "dateFinAdmission": "2022-08-31T00:00:00.000Z",
+      "codeCommune": "75106"
+    }
+  ],
+  "inscriptions": [
+    {
+      "statut": "inscrit",
+      "regime": "formation continue",
+      "dateDebutInscription": "2022-09-01",
+      "dateFinInscription": "2023-08-31",
+      "codeCommune": "75106"
+    }
+  ],
+  "etablissements": [
+    {
+      "uai": "0751722P",
+      "nom": "Université Pierre et Marie Curie - UPCM (Paris 6)"
+    }
+  ]
+}
diff --git a/spec/lib/api_particulier/mesri_adapter_spec.rb b/spec/lib/api_particulier/mesri_adapter_spec.rb
new file mode 100644
index 000000000..5bb94d57c
--- /dev/null
+++ b/spec/lib/api_particulier/mesri_adapter_spec.rb
@@ -0,0 +1,70 @@
+describe APIParticulier::MesriAdapter do
+  let(:adapter) { described_class.new(api_particulier_token, ine, requested_sources) }
+
+  before { stub_const('API_PARTICULIER_URL', 'https://particulier.api.gouv.fr/api') }
+
+  describe '#to_params' do
+    let(:api_particulier_token) { 'c6d23f3900b8fb4b3586c4804c051af79062f54b' }
+    let(:ine) { '090601811AB' }
+
+    subject { VCR.use_cassette(cassette) { adapter.to_params } }
+
+    context 'when the api answer is valid' do
+      let(:cassette) { 'api_particulier/success/etudiants' }
+
+      context 'when the token has all the MESRI scopes' do
+        context 'and all the sources are requested' do
+          let(:requested_sources) do
+            {
+              'mesri' => {
+                'identifiant' => ['ine'],
+                'identite' => ['nom', 'prenom', 'dateNaissance'],
+                'inscriptions' => ['statut', 'regime', 'dateDebutInscription', 'dateFinInscription', 'codeCommune'],
+                'admissions' => ['statut', 'regime', 'dateDebutAdmission', 'dateFinAdmission', 'codeCommune'],
+                'etablissements' => ['uai', 'nom']
+              }
+            }
+          end
+
+          let(:result) { JSON.parse(File.read('spec/fixtures/files/api_particulier/etudiants.json')) }
+
+          it { is_expected.to eq(result) }
+        end
+
+        context 'when no sources is requested' do
+          let(:requested_sources) { {} }
+
+          it { is_expected.to eq({}) }
+        end
+
+        context 'when an admission statut is requested' do
+          let(:requested_sources) { { 'mesri' => { 'admissions' => ['statut'] } } }
+
+          it { is_expected.to eq('admissions' => [{ 'statut' => 'admis' }]) }
+        end
+
+        context 'when an inscription statut is requested' do
+          let(:requested_sources) { { 'mesri' => { 'inscriptions' => ['statut'] } } }
+
+          it { is_expected.to eq('inscriptions' => [{ 'statut' => 'inscrit' }]) }
+        end
+
+        context 'when a first name is requested' do
+          let(:requested_sources) { { 'mesri' => { 'identite' => ['prenom'] } } }
+
+          it { is_expected.to eq('identite' => { 'prenom' => 'Angela Claire Louise' }) }
+        end
+      end
+    end
+
+    context 'when the api answer is invalid' do
+      let(:cassette) { 'api_particulier/success/etudiants_invalid' }
+
+      context 'when no sources is requested' do
+        let(:requested_sources) { {} }
+
+        it { expect { subject }.to raise_error(APIParticulier::MesriAdapter::InvalidSchemaError) }
+      end
+    end
+  end
+end