diff --git a/typescript/infra/scripts/funding/fund-relayers-from-deployer.ts b/typescript/infra/scripts/funding/fund-relayers-from-deployer.ts
index 9c867d873..b539264e0 100644
--- a/typescript/infra/scripts/funding/fund-relayers-from-deployer.ts
+++ b/typescript/infra/scripts/funding/fund-relayers-from-deployer.ts
@@ -1,6 +1,7 @@
 import { Console } from 'console';
 import { ethers } from 'ethers';
 import { Gauge, Registry } from 'prom-client';
+import { format } from 'util';
 
 import { ChainConnection, CompleteChainMap } from '@abacus-network/sdk';
 
@@ -247,7 +248,9 @@ function relayerKeyInfo(relayerKey: AgentKey) {
 
 main().catch((err) => {
   error('Error occurred in main', {
-    error: err,
+    // JSON.stringifying an Error returns '{}'.
+    // This is a workaround from https://stackoverflow.com/a/60370781
+    error: format(err),
   });
   process.exit(1);
 });
diff --git a/typescript/infra/src/agents/agent.ts b/typescript/infra/src/agents/agent.ts
index 442d0e8f6..d19a17af1 100644
--- a/typescript/infra/src/agents/agent.ts
+++ b/typescript/infra/src/agents/agent.ts
@@ -69,43 +69,43 @@ export class ReadOnlyAgentKey extends AgentKey {
     address: string,
   ): ReadOnlyAgentKey {
     const regex =
-      /.*([a-zA-Z0-9]+)-([a-zA-Z0-9]+)-key-([a-zA-Z0-9]+)-?([a-zA-Z0-9]+)?-?([0-9]+)?/g;
+      /(alias\/)?([a-zA-Z0-9]+)-([a-zA-Z0-9]+)-key-([a-zA-Z0-9]+)-?([a-zA-Z0-9]+)?-?([0-9]+)?/g;
     const matches = regex.exec(identifier);
     if (!matches) {
       throw Error('Invalid identifier');
     }
-    const context = assertContext(matches[1]);
-    const environment = matches[2];
+    const context = assertContext(matches[2]);
+    const environment = matches[3];
 
-    // If matches[4] is undefined, this key doesn't have a chainName, and matches[3]
+    // If matches[5] is undefined, this key doesn't have a chainName, and matches[4]
     // is the role name.
-    if (matches[4] === undefined) {
+    if (matches[5] === undefined) {
       return new ReadOnlyAgentKey(
         environment,
         context,
-        assertRole(matches[3]),
+        assertRole(matches[4]),
         identifier,
         address,
       );
-    } else if (matches[5] === undefined) {
-      // If matches[5] is undefined, this key doesn't have an index.
+    } else if (matches[6] === undefined) {
+      // If matches[6] is undefined, this key doesn't have an index.
       return new ReadOnlyAgentKey(
         environment,
         context,
-        assertRole(matches[4]),
+        assertRole(matches[5]),
         identifier,
         address,
-        assertChain(matches[3]),
+        assertChain(matches[4]),
       );
     } else {
       return new ReadOnlyAgentKey(
         environment,
         context,
-        assertRole(matches[4]),
+        assertRole(matches[5]),
         identifier,
         address,
-        assertChain(matches[3]),
-        parseInt(matches[5]),
+        assertChain(matches[4]),
+        parseInt(matches[6]),
       );
     }
   }
diff --git a/typescript/infra/test/agents.test.ts b/typescript/infra/test/agents.test.ts
new file mode 100644
index 000000000..a1637de71
--- /dev/null
+++ b/typescript/infra/test/agents.test.ts
@@ -0,0 +1,58 @@
+import { expect } from 'chai';
+
+import { Contexts } from '../config/contexts';
+import { ReadOnlyAgentKey } from '../src/agents/agent';
+import { AgentAwsKey } from '../src/agents/aws';
+import { AgentGCPKey } from '../src/agents/gcp';
+import { KEY_ROLE_ENUM } from '../src/agents/roles';
+
+describe('ReadOnlyAgentKey', () => {
+  describe('fromSerializedAddress', () => {
+    it('correctly parses identifiers', () => {
+      const addressZero = '0x0000000000000000000000000000000000000000';
+      const environment = 'test';
+      const context = Contexts.Abacus;
+      const chainName = 'test1';
+      // Enough to satisfy the constructor of AgentAwsKey
+      const mockAgentConfig: any = {
+        aws: {
+          region: 'us-east-1',
+        },
+        environment,
+        context,
+      };
+
+      // AWS and GCP agent keys to get the identifiers from
+      // and ensure they can be correctly parsed
+      const testKeys = [
+        new AgentGCPKey(environment, context, KEY_ROLE_ENUM.Deployer),
+        new AgentGCPKey(environment, context, KEY_ROLE_ENUM.Relayer, chainName),
+        new AgentGCPKey(
+          environment,
+          context,
+          KEY_ROLE_ENUM.Validator,
+          chainName,
+          0,
+        ),
+        new AgentAwsKey(mockAgentConfig, KEY_ROLE_ENUM.Deployer),
+        new AgentAwsKey(mockAgentConfig, KEY_ROLE_ENUM.Relayer, chainName),
+        new AgentAwsKey(mockAgentConfig, KEY_ROLE_ENUM.Validator, chainName, 0),
+      ];
+
+      for (const testKey of testKeys) {
+        const identifier = testKey.identifier;
+
+        const readOnly = ReadOnlyAgentKey.fromSerializedAddress(
+          identifier,
+          addressZero,
+        );
+
+        expect(readOnly.environment).to.eq(testKey.environment);
+        expect(readOnly.context).to.eq(testKey.context);
+        expect(readOnly.role).to.eq(testKey.role);
+        expect(readOnly.chainName).to.eq(testKey.chainName);
+        expect(readOnly.index).to.eq(testKey.index);
+      }
+    });
+  });
+});