diff --git a/affiliations-rnsr/README.md b/affiliations-rnsr/README.md
index 37c07a9..4cbaea4 100644
--- a/affiliations-rnsr/README.md
+++ b/affiliations-rnsr/README.md
@@ -61,3 +61,36 @@
 2015;University of Bordeaux, IMS, CNRS UMR5218, Talence, F-33405, France;200711887V
 2015;CENBG, CNRS/IN2P3, Chemin du Solarium B. P. 120, Gradignan, F-33175, France;199512079F
 ```
+
+## v1/json
+
+Prend un fichier JSON, avec des champs nommés `id` (pour l'identifiant) et
+`value` (pour l'adresse), et renvoie un JSON avec le ou les identifiant RNSR
+dans le champ `value`.
+
+> *Remarque : Quand aucun identifiant n'est trouvé, un tableau vide est
+> renvoyé.*
+
+### Exemple JSON
+
+```bash
+cat <<EOF|curl -X POST --data-binary @- "https://affiliations-rnsr.services.inist.fr/v1/json?indent=true"
+[
+{ "id":1, "value": "CNRS UMR AMAP MONTPELLIER FRA" },
+{ "id":2, "value": "IRD UMR AMAP MONTPELLIER FRA" },
+{ "id":3, "value": "University of Bordeaux, IMS, CNRS UMR5218, Talence, F-33405, France" },
+{ "id":4, "value": "CENBG, CNRS/IN2P3, Chemin du Solarium B. P. 120, Gradignan, F-33175, France" }
+]
+EOF
+```
+
+Sortie:
+
+```csv
+[
+{ "id":1, "value": "200317641S" },
+{ "id":2, "value": "200317641S" },
+{ "id":3, "value": "200711887V" },
+{ "id":4, "value": "199512079F" },
+]
+```
diff --git a/affiliations-rnsr/v1/json.ini b/affiliations-rnsr/v1/json.ini
new file mode 100644
index 0000000..b16747e
--- /dev/null
+++ b/affiliations-rnsr/v1/json.ini
@@ -0,0 +1,31 @@
+# OpenAPI Documentation - JSON format (dot notation)
+post.responses.default.description = Return a JSON, composed of `id`, `value`, where value is found `RNSR`(s)
+post.responses.default.content.application/json.schema = #/components/schemas/JSONStream
+post.summary = Find RNSR to address given in `value`, when possible
+post.requestBody.required = true
+post.requestBody.content.application/json.schema.$ref = #/components/schemas/JSONStream
+
+[use]
+plugin = basics
+plugin = conditor
+
+[JSONParse]
+[debug]
+[replace]
+path = id
+value = get("id")
+
+path = authors
+value = get("value").toArray("Chaîne").reduce((s,c) => [{affiliations:[{address:s[0].affiliations[0].address+c}]}], [{affiliations:[{address:""}]}])
+
+[affAlign]
+
+[replace]
+path = id
+value = get("id")
+
+path = value
+value = get("authors.0.affiliations.0.conditorRnsr")
+
+[JSONString]
+indent = env('indent', false)