diff --git a/.arclint b/.arclint
--- a/.arclint
+++ b/.arclint
@@ -127,6 +127,10 @@
         "lint-boost-dependencies": {
             "type": "lint-boost-dependencies",
             "include": "(^src/.*\\.(h|cpp)$)"
+        },
+        "check-rpc-mappings": {
+            "type": "check-rpc-mappings",
+            "include": "(^src/(rpc/|wallet/rpc).*\\.cpp$)"
         }
     }
 }
diff --git a/arcanist/.phutil_module_cache b/arcanist/.phutil_module_cache
--- a/arcanist/.phutil_module_cache
+++ b/arcanist/.phutil_module_cache
@@ -1 +1 @@
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\ No newline at end of file
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\ No newline at end of file
diff --git a/arcanist/__phutil_library_map__.php b/arcanist/__phutil_library_map__.php
--- a/arcanist/__phutil_library_map__.php
+++ b/arcanist/__phutil_library_map__.php
@@ -14,6 +14,7 @@
     'BoostDependenciesLinter' => 'linter/BoostDependenciesLinter.php',
     'CHeaderLinter' => 'linter/CHeaderLinter.php',
     'CheckDocLinter' => 'linter/CheckDocLinter.php',
+    'CheckRpcMappingsLinter' => 'linter/CheckRpcMappingsLinter.php',
     'ClangFormatLinter' => 'linter/ClangFormatLinter.php',
     'ExtendedConfigurationDrivenLintEngine' => 'engine/ExtendedConfigurationDrivenLintEngine.php',
     'FileNameLinter' => 'linter/FileNameLinter.php',
@@ -35,6 +36,7 @@
     'BoostDependenciesLinter' => 'GlobalExternalLinter',
     'CHeaderLinter' => 'ArcanistLinter',
     'CheckDocLinter' => 'GlobalExternalLinter',
+    'CheckRpcMappingsLinter' => 'GlobalExternalLinter',
     'ClangFormatLinter' => 'ArcanistExternalLinter',
     'ExtendedConfigurationDrivenLintEngine' => 'ArcanistLintEngine',
     'FileNameLinter' => 'ArcanistLinter',
diff --git a/arcanist/linter/CheckRpcMappingsLinter.php b/arcanist/linter/CheckRpcMappingsLinter.php
new file mode 100644
--- /dev/null
+++ b/arcanist/linter/CheckRpcMappingsLinter.php
@@ -0,0 +1,82 @@
+<?php
+
+/**
+ * Uses the check-rpc-mappings.py script to ensure the RPC arguments types and
+ * names are consistent.
+ */
+final class CheckRpcMappingsLinter extends GlobalExternalLinter {
+
+  public function getInfoName() {
+    return 'check-rpc-mappings';
+  }
+
+  public function getInfoDescription() {
+    return pht('Check that the RPC arguments are consistent.');
+  }
+
+  public function getLinterName() {
+    return 'RPC_MAPPINGS';
+  }
+
+  public function getLinterConfigurationName() {
+    return 'check-rpc-mappings';
+  }
+
+  public function getDefaultBinary() {
+    return Filesystem::resolvePath('test/lint/check-rpc-mappings.py',
+      $this->getProjectRoot());
+  }
+
+  public function shouldUseInterpreter() {
+    return true;
+  }
+
+  public function getDefaultInterpreter() {
+    return "python3";
+  }
+
+  public function getInstallInstructions() {
+    return pht('The test/lint/check-rpc-mappings.py script is part of the '.
+               'bitcoin-abc project');
+  }
+
+  public function shouldExpectCommandErrors() {
+    return false;
+  }
+
+  protected function getMandatoryFlags() {
+    return array($this->getProjectRoot());
+  }
+
+  protected function parseGlobalLinterOutput($err, $stdout, $stderr) {
+    $messages = array();
+
+    // Find errors
+    if (preg_match_all('/ERROR:\s*(.*)/', $stdout, $errors, PREG_SET_ORDER)) {
+      foreach ($errors as $error) {
+        $messages[] = id(new ArcanistLintMessage())
+          ->setGranularity(ArcanistLinter::GRANULARITY_GLOBAL)
+          ->setCode('RPC_MAPPING_ERROR')
+          ->setSeverity(ArcanistLintSeverity::SEVERITY_ERROR)
+          ->setName('RPC mapping error')
+          ->setDescription($error[1]);
+      }
+    }
+
+    // Find warnings
+    if (preg_match_all('/WARNING:\s*(.*)/', $stdout, $warnings,
+      PREG_SET_ORDER)) {
+      foreach ($warnings as $warning) {
+        $messages[] = id(new ArcanistLintMessage())
+        ->setGranularity(ArcanistLinter::GRANULARITY_GLOBAL)
+        ->setCode('RPC_MAPPING_WARNING')
+        ->setSeverity(ArcanistLintSeverity::SEVERITY_WARNING)
+        ->setBypassChangedLineFiltering(true)
+        ->setName('RPC mapping warning')
+        ->setDescription($warning[1]);
+      }
+    }
+
+    return $messages;
+  }
+}
diff --git a/test/lint/check-rpc-mappings.py b/test/lint/check-rpc-mappings.py
--- a/test/lint/check-rpc-mappings.py
+++ b/test/lint/check-rpc-mappings.py
@@ -165,7 +165,7 @@
             print('WARNING: conversion mismatch for argument named {} ({})'.format(
                 argname, list(zip(all_methods_by_argname[argname], converts_by_argname[argname]))))
 
-    sys.exit(errors > 0)
+    sys.exit(0)
 
 
 if __name__ == '__main__':