diff --git a/yarn-project/aztec-node/src/aztec-node/config.ts b/yarn-project/aztec-node/src/aztec-node/config.ts
index 79f705ab417..15ec2cf7048 100644
--- a/yarn-project/aztec-node/src/aztec-node/config.ts
+++ b/yarn-project/aztec-node/src/aztec-node/config.ts
@@ -1,5 +1,5 @@
 import { type ArchiverConfig, archiverConfigMappings } from '@aztec/archiver';
-import { type ConfigMappingsType, getConfigFromMappings } from '@aztec/foundation/config';
+import { type ConfigMappingsType, booleanConfigHelper, getConfigFromMappings } from '@aztec/foundation/config';
 import { type P2PConfig, p2pConfigMappings } from '@aztec/p2p';
 import { type ProverClientConfig, proverClientConfigMappings } from '@aztec/prover-client';
 import { type SequencerClientConfig, sequencerClientConfigMappings } from '@aztec/sequencer-client';
@@ -34,15 +34,13 @@ export const aztecNodeConfigMappings: ConfigMappingsType<AztecNodeConfig> = {
   ...p2pConfigMappings,
   disableSequencer: {
     env: 'SEQ_DISABLED',
-    parseEnv: (val: string) => ['1', 'true'].includes(val),
-    default: false,
     description: 'Whether the sequencer is disabled for this node.',
+    ...booleanConfigHelper(),
   },
   disableProver: {
     env: 'PROVER_DISABLED',
-    parseEnv: (val: string) => ['1', 'true'].includes(val),
-    default: false,
     description: 'Whether the prover is disabled for this node.',
+    ...booleanConfigHelper(),
   },
 };
 
diff --git a/yarn-project/aztec/src/cli/aztec_start_options.ts b/yarn-project/aztec/src/cli/aztec_start_options.ts
index 5eafd33c650..e73acad5f61 100644
--- a/yarn-project/aztec/src/cli/aztec_start_options.ts
+++ b/yarn-project/aztec/src/cli/aztec_start_options.ts
@@ -1,7 +1,12 @@
 import { type ArchiverConfig, archiverConfigMappings } from '@aztec/archiver';
 import { sequencerClientConfigMappings } from '@aztec/aztec-node';
 import { botConfigMappings } from '@aztec/bot';
-import { type ConfigMapping, filterConfigMappings, isBooleanConfigValue } from '@aztec/foundation/config';
+import {
+  type ConfigMapping,
+  booleanConfigHelper,
+  filterConfigMappings,
+  isBooleanConfigValue,
+} from '@aztec/foundation/config';
 import { bootnodeConfigMappings, p2pConfigMappings } from '@aztec/p2p';
 import { proverClientConfigMappings } from '@aztec/prover-client';
 import { proverNodeConfigMappings } from '@aztec/prover-node';
@@ -54,16 +59,14 @@ export const aztecStartOptions: { [key: string]: AztecStartOption[] } = {
     {
       flag: '--sandbox.testAccounts',
       description: 'Deploy test accounts on sandbox start',
-      defaultValue: true,
       envVar: 'TEST_ACCOUNTS',
-      parseVal: val => ['1', true].includes(val),
+      ...booleanConfigHelper(true),
     },
     {
       flag: '--sandbox.enableGas',
       description: 'Enable gas on sandbox start',
-      defaultValue: false,
       envVar: 'ENABLE_GAS',
-      parseVal: val => ['1', true].includes(val),
+      ...booleanConfigHelper(),
     },
   ],
   API: [
@@ -169,9 +172,8 @@ export const aztecStartOptions: { [key: string]: AztecStartOption[] } = {
     {
       flag: '--node.deployAztecContracts',
       description: 'Deploys L1 Aztec contracts before starting the node. Needs mnemonic or private key to be set',
-      defaultValue: false,
       envVar: 'DEPLOY_AZTEC_CONTRACTS',
-      parseVal: val => ['1', true].includes(val),
+      ...booleanConfigHelper(),
     },
     {
       flag: '--node.publisherPrivateKey <value>',
@@ -198,9 +200,8 @@ export const aztecStartOptions: { [key: string]: AztecStartOption[] } = {
     {
       flag: '--p2p-enabled',
       description: 'Enable P2P subsystem',
-      defaultValue: false,
       envVar: 'P2P_ENABLED',
-      parseVal: val => ['1', true].includes(val),
+      ...booleanConfigHelper(),
     },
     ...getOptions('p2p', p2pConfigMappings),
   ],
diff --git a/yarn-project/bot/src/config.ts b/yarn-project/bot/src/config.ts
index 56623ae1634..86fe614b87d 100644
--- a/yarn-project/bot/src/config.ts
+++ b/yarn-project/bot/src/config.ts
@@ -1,6 +1,7 @@
 import { Fr } from '@aztec/circuits.js';
 import {
   type ConfigMappingsType,
+  booleanConfigHelper,
   getConfigFromMappings,
   getDefaultConfig,
   numberConfigHelper,
@@ -78,8 +79,7 @@ export const botConfigMappings: ConfigMappingsType<BotConfig> = {
   noStart: {
     env: 'BOT_NO_START',
     description: 'True to not automatically setup or start the bot on initialization.',
-    parseEnv: val => ['1', 'true'].includes(val),
-    default: false,
+    ...booleanConfigHelper(),
   },
   txMinedWaitSeconds: {
     env: 'BOT_TX_MINED_WAIT_SECONDS',
@@ -89,8 +89,7 @@ export const botConfigMappings: ConfigMappingsType<BotConfig> = {
   noWaitForTransfers: {
     env: 'BOT_NO_WAIT_FOR_TRANSFERS',
     description: "Don't wait for transfer transactions.",
-    parseEnv: val => ['1', 'true'].includes(val),
-    default: false,
+    ...booleanConfigHelper(),
   },
 };
 
diff --git a/yarn-project/circuit-types/src/interfaces/prover-client.ts b/yarn-project/circuit-types/src/interfaces/prover-client.ts
index 1bf302762a1..7e8aa848f4f 100644
--- a/yarn-project/circuit-types/src/interfaces/prover-client.ts
+++ b/yarn-project/circuit-types/src/interfaces/prover-client.ts
@@ -1,6 +1,6 @@
 import { type TxHash } from '@aztec/circuit-types';
 import { Fr } from '@aztec/circuits.js';
-import { type ConfigMappingsType, numberConfigHelper } from '@aztec/foundation/config';
+import { type ConfigMappingsType, booleanConfigHelper, numberConfigHelper } from '@aztec/foundation/config';
 
 import { type BlockProver } from './block-prover.js';
 import { type MerkleTreeOperations } from './merkle_tree_operations.js';
@@ -37,15 +37,13 @@ export const proverConfigMappings: ConfigMappingsType<ProverConfig> = {
   },
   realProofs: {
     env: 'PROVER_REAL_PROOFS',
-    parseEnv: (val: string) => ['1', 'true'].includes(val),
-    default: false,
     description: 'Whether to construct real proofs',
+    ...booleanConfigHelper(),
   },
   proverAgentEnabled: {
     env: 'PROVER_AGENT_ENABLED',
-    parseEnv: (val: string) => ['1', 'true'].includes(val),
-    default: true,
     description: 'Whether this prover has a local prover agent',
+    ...booleanConfigHelper(true),
   },
   proverAgentPollInterval: {
     env: 'PROVER_AGENT_POLL_INTERVAL_MS',
diff --git a/yarn-project/foundation/src/config/index.ts b/yarn-project/foundation/src/config/index.ts
index 5c6bf1bdf19..3dac5808506 100644
--- a/yarn-project/foundation/src/config/index.ts
+++ b/yarn-project/foundation/src/config/index.ts
@@ -60,13 +60,26 @@ export function filterConfigMappings<T, K extends keyof T>(
  * @param defaultVal - The default numerical value to use if the environment variable is not set or is invalid
  * @returns Object with parseEnv and default values for a numerical config value
  */
-export function numberConfigHelper(defaultVal: number): Partial<ConfigMapping> {
+export function numberConfigHelper(defaultVal: number): Pick<ConfigMapping, 'parseEnv' | 'default'> {
   return {
     parseEnv: (val: string) => safeParseNumber(val, defaultVal),
     default: defaultVal,
   };
 }
 
+/**
+ * Generates parseEnv and default values for a boolean config value.
+ * @param defaultVal - The default value to use if the environment variable is not set or is invalid
+ * @returns Object with parseEnv and default values for a boolean config value
+ */
+export function booleanConfigHelper(defaultVal = false): Pick<ConfigMapping, 'parseEnv' | 'default' | 'isBoolean'> {
+  return {
+    parseEnv: (val: string) => ['1', 'true', 'TRUE'].includes(val),
+    default: defaultVal,
+    isBoolean: true,
+  };
+}
+
 /**
  * Safely parses a number from a string.
  * If the value is not a number or is not a safe integer, the default value is returned.
diff --git a/yarn-project/p2p/src/config.ts b/yarn-project/p2p/src/config.ts
index 15aa326fc93..ed24e597578 100644
--- a/yarn-project/p2p/src/config.ts
+++ b/yarn-project/p2p/src/config.ts
@@ -1,5 +1,6 @@
 import {
   type ConfigMappingsType,
+  booleanConfigHelper,
   getConfigFromMappings,
   numberConfigHelper,
   pickConfigMappings,
@@ -91,8 +92,8 @@ export interface P2PConfig {
 export const p2pConfigMappings: ConfigMappingsType<P2PConfig> = {
   p2pEnabled: {
     env: 'P2P_ENABLED',
-    parseEnv: (val: string) => ['1', 'true'].includes(val),
     description: 'A flag dictating whether the P2P subsystem should be enabled.',
+    ...booleanConfigHelper(),
   },
   blockCheckIntervalMS: {
     env: 'P2P_BLOCK_CHECK_INTERVAL_MS',
@@ -161,7 +162,7 @@ export const p2pConfigMappings: ConfigMappingsType<P2PConfig> = {
     env: 'P2P_QUERY_FOR_IP',
     description:
       'If announceUdpAddress or announceTcpAddress are not provided, query for the IP address of the machine. Default is false.',
-    parseEnv: (val: string) => ['1', 'true'].includes(val),
+    ...booleanConfigHelper(),
   },
   keepProvenTxsInPoolFor: {
     env: 'P2P_TX_POOL_KEEP_PROVEN_FOR',
diff --git a/yarn-project/prover-client/src/config.ts b/yarn-project/prover-client/src/config.ts
index 89ad7b49da8..fb751c5c605 100644
--- a/yarn-project/prover-client/src/config.ts
+++ b/yarn-project/prover-client/src/config.ts
@@ -1,5 +1,5 @@
 import { type ProverConfig, proverConfigMappings } from '@aztec/circuit-types';
-import { type ConfigMappingsType, getConfigFromMappings } from '@aztec/foundation/config';
+import { type ConfigMappingsType, booleanConfigHelper, getConfigFromMappings } from '@aztec/foundation/config';
 
 /**
  * The prover configuration.
@@ -36,9 +36,8 @@ export const proverClientConfigMappings: ConfigMappingsType<ProverClientConfig>
   },
   disableProver: {
     env: 'PROVER_DISABLED',
-    parseEnv: (val: string) => ['1', 'true'].includes(val),
-    default: false,
     description: 'Whether to disable proving.',
+    ...booleanConfigHelper(),
   },
   ...proverConfigMappings,
 };
diff --git a/yarn-project/pxe/src/config/index.ts b/yarn-project/pxe/src/config/index.ts
index be807ec3e5a..dbc82c4fa70 100644
--- a/yarn-project/pxe/src/config/index.ts
+++ b/yarn-project/pxe/src/config/index.ts
@@ -1,5 +1,10 @@
 import { INITIAL_L2_BLOCK_NUM } from '@aztec/circuits.js/constants';
-import { type ConfigMappingsType, getConfigFromMappings, numberConfigHelper } from '@aztec/foundation/config';
+import {
+  type ConfigMappingsType,
+  booleanConfigHelper,
+  getConfigFromMappings,
+  numberConfigHelper,
+} from '@aztec/foundation/config';
 import { type Network } from '@aztec/types/network';
 
 import { readFileSync } from 'fs';
@@ -69,9 +74,8 @@ export const pxeConfigMappings: ConfigMappingsType<PXEServiceConfig> = {
   },
   proverEnabled: {
     env: 'PXE_PROVER_ENABLED',
-    parseEnv: (val: string) => ['1', 'true'].includes(val),
     description: 'Enable real proofs',
-    isBoolean: true,
+    ...booleanConfigHelper(),
   },
 };
 
@@ -103,7 +107,7 @@ export const allPxeConfigMappings: ConfigMappingsType<CliPXEOptions & PXEService
   ...pxeCliConfigMappings,
   proverEnabled: {
     env: 'PXE_PROVER_ENABLED',
-    parseEnv: (val: string) => ['1', 'true'].includes(val) || !!process.env.NETWORK,
+    parseEnv: (val: string) => ['1', 'true', 'TRUE'].includes(val) || !!process.env.NETWORK,
     description: 'Enable real proofs',
     isBoolean: true,
   },
diff --git a/yarn-project/sequencer-client/src/config.ts b/yarn-project/sequencer-client/src/config.ts
index 1ff66343d93..6c692eb6905 100644
--- a/yarn-project/sequencer-client/src/config.ts
+++ b/yarn-project/sequencer-client/src/config.ts
@@ -1,7 +1,12 @@
 import { type AllowedElement } from '@aztec/circuit-types';
 import { AztecAddress, Fr, FunctionSelector, getContractClassFromArtifact } from '@aztec/circuits.js';
 import { type L1ReaderConfig, l1ReaderConfigMappings } from '@aztec/ethereum';
-import { type ConfigMappingsType, getConfigFromMappings, numberConfigHelper } from '@aztec/foundation/config';
+import {
+  type ConfigMappingsType,
+  booleanConfigHelper,
+  getConfigFromMappings,
+  numberConfigHelper,
+} from '@aztec/foundation/config';
 import { EthAddress } from '@aztec/foundation/eth-address';
 import { FPCContract } from '@aztec/noir-contracts.js/FPC';
 import { TokenContractArtifact } from '@aztec/noir-contracts.js/Token';
@@ -96,13 +101,13 @@ export const sequencerConfigMappings: ConfigMappingsType<SequencerConfig> = {
   },
   enforceFees: {
     env: 'ENFORCE_FEES',
-    parseEnv: (val: string) => ['1', 'true'].includes(val),
     description: 'Whether to require every tx to have a fee payer',
+    ...booleanConfigHelper(),
   },
   sequencerSkipSubmitProofs: {
     env: 'SEQ_SKIP_SUBMIT_PROOFS',
-    parseEnv: (val: string) => ['1', 'true'].includes(val),
     description: 'Temporary flag to skip submitting proofs, so a prover-node takes care of it.',
+    ...booleanConfigHelper(),
   },
 };
 
diff --git a/yarn-project/world-state/src/synchronizer/config.ts b/yarn-project/world-state/src/synchronizer/config.ts
index c16e1236ae2..78666dd2566 100644
--- a/yarn-project/world-state/src/synchronizer/config.ts
+++ b/yarn-project/world-state/src/synchronizer/config.ts
@@ -1,4 +1,4 @@
-import { type ConfigMappingsType, getConfigFromMappings } from '@aztec/foundation/config';
+import { type ConfigMappingsType, booleanConfigHelper, getConfigFromMappings } from '@aztec/foundation/config';
 
 /** World State synchronizer configuration values. */
 export interface WorldStateConfig {
@@ -27,9 +27,8 @@ export const worldStateConfigMappings: ConfigMappingsType<WorldStateConfig> = {
   },
   worldStateProvenBlocksOnly: {
     env: 'WS_PROVEN_BLOCKS_ONLY',
-    parseEnv: (val: string) => ['1', 'true'].includes(val),
-    default: false,
     description: 'Whether to follow only the proven chain.',
+    ...booleanConfigHelper(),
   },
 };