diff --git a/src/mir/repres/proxy/HEALPix.cc b/src/mir/repres/proxy/HEALPix.cc
index 1b612e680..670f06a37 100644
--- a/src/mir/repres/proxy/HEALPix.cc
+++ b/src/mir/repres/proxy/HEALPix.cc
@@ -18,6 +18,7 @@
 #include <ostream>
 #include <tuple>
 
+#include "eckit/log/JSON.h"
 #include "eckit/types/FloatCompare.h"
 
 #include "atlas/interpolation/method/knn/GridBox.h"
@@ -275,6 +276,11 @@ void HEALPix::fillJob(api::MIRJob&) const {
 }
 
 
+void HEALPix::json(eckit::JSON& j) const {
+    j << "grid" << name();
+}
+
+
 void HEALPix::print(std::ostream& out) const {
     out << "HEALPix[name=" << name() << "]";
 }
diff --git a/src/mir/repres/proxy/HEALPix.h b/src/mir/repres/proxy/HEALPix.h
index c81bd5eb4..e62f48aef 100644
--- a/src/mir/repres/proxy/HEALPix.h
+++ b/src/mir/repres/proxy/HEALPix.h
@@ -106,6 +106,7 @@ class HEALPix final : public ProxyGrid {
     void fillMeshGen(util::MeshGeneratorParameters&) const override;
     void fillJob(api::MIRJob&) const override;
 
+    void json(eckit::JSON&) const override;
     void print(std::ostream&) const override;
 
     std::vector<util::GridBox> gridBoxes() const override;
diff --git a/src/mir/repres/unsupported/HEALPixNested.cc b/src/mir/repres/unsupported/HEALPixNested.cc
index 385e0a092..3100a237e 100644
--- a/src/mir/repres/unsupported/HEALPixNested.cc
+++ b/src/mir/repres/unsupported/HEALPixNested.cc
@@ -14,6 +14,8 @@
 
 #include <ostream>
 
+#include "eckit/log/JSON.h"
+
 #include "mir/iterator/UnstructuredIterator.h"
 #include "mir/util/Exceptions.h"
 #include "mir/util/Grib.h"
@@ -23,8 +25,13 @@
 namespace mir::repres::unsupported {
 
 
+std::string HEALPixNested::name() const {
+    return "H" + std::to_string(ring_.Nside()) + "_nested";
+}
+
+
 void HEALPixNested::makeName(std::ostream& out) const {
-    out << "H" << std::to_string(ring_.Nside()) << "_nested";
+    out << name();
 }
 
 
@@ -38,8 +45,13 @@ void HEALPixNested::fillGrib(grib_info& info) const {
 }
 
 
+void HEALPixNested::json(eckit::JSON& j) const {
+    j << "grid" << name();
+}
+
+
 void HEALPixNested::print(std::ostream& out) const {
-    out << "HEALPixNested[name=" << "H" << std::to_string(ring_.Nside()) << "_nested" << "]";
+    out << "HEALPixNested[name=" << name() << "]";
 }
 
 
diff --git a/src/mir/repres/unsupported/HEALPixNested.h b/src/mir/repres/unsupported/HEALPixNested.h
index e982ad2e1..78507106b 100644
--- a/src/mir/repres/unsupported/HEALPixNested.h
+++ b/src/mir/repres/unsupported/HEALPixNested.h
@@ -63,6 +63,7 @@ class HEALPixNested final : public Gridded {
     // -- Methods
 
     inline const Representation& ring() const { return static_cast<const Representation&>(ring_); }
+    std::string name() const;
 
     // -- Overridden methods
 
@@ -77,6 +78,7 @@ class HEALPixNested final : public Gridded {
     void fillMeshGen(util::MeshGeneratorParameters& param) const override { ring().fillMeshGen(param); }
     void fillJob(api::MIRJob& job) const override { ring().fillJob(job); }
 
+    void json(eckit::JSON&) const override;
     void print(std::ostream&) const override;
 
     std::vector<util::GridBox> gridBoxes() const override;