diff --git a/configs/envvars/src/genEnvVars.ts b/configs/envvars/src/genEnvVars.ts
index 18db80eb..4b8ea752 100644
--- a/configs/envvars/src/genEnvVars.ts
+++ b/configs/envvars/src/genEnvVars.ts
@@ -189,6 +189,8 @@ const EXPLORER_API_DEFAULTS: Record<string, string | undefined> = {
     // Story
     1514: "https://www.storyscan.xyz/api/v2/",
     1315: "https://aeneid.storyscan.xyz/api/v2",
+    // Citrea
+    5115: "https://explorer.testnet.citrea.xyz",
 };
 
 /** API Keys are per-domain */
@@ -227,6 +229,8 @@ const EXPLORER_API_KEY_DEFAULTS: Record<string, string | undefined> = {
     // TODO: support blockscout
     // 1514: " ",
     // 1315: " ",
+    // Citrea
+    // 5115
 };
 
 /**
@@ -248,7 +252,7 @@ export function getEnvVarsForNetworkId(networkId: string): EnvVarDef[] {
 //const chainIds = allChains.map((c) => c.chainId);
 const chainIds = [
     1, 5, 1337, 11155111, 17000, 11155420, 59144, 59140, 137, 80001, 80002, 42161, 421614, 42170, 10, 43114, 43113, 56,
-    97, 168587773, 8453, 84532, 3441006, 204, 5611, 33139, 33111, 1329, 713715, 1868, 80094, 1514, 1315, 9001,
+    97, 168587773, 8453, 84532, 3441006, 204, 5611, 33139, 33111, 1329, 713715, 1868, 80094, 1514, 1315, 9001, 5115,
 ];
 //TODO: For all networkIds, right now this breaks because file is too big. Is there a better way?
 const NETWORK_ENVVARS: EnvVarDef[] = [];
diff --git a/packages/chains/src/chains/citreaTestnet.ts b/packages/chains/src/chains/citreaTestnet.ts
new file mode 100644
index 00000000..2c6466ec
--- /dev/null
+++ b/packages/chains/src/chains/citreaTestnet.ts
@@ -0,0 +1,31 @@
+import { defineChain } from "viem/utils";
+import { defineNetwork } from "../defineChain.js";
+
+const citreaTestnetViem = /*#__PURE__*/ defineChain({
+    id: 5115,
+    name: "Citrea Testnet",
+    nativeCurrency: { name: "cBTC", symbol: "cBTC", decimals: 18 },
+    rpcUrls: {
+        default: {
+            http: ["https://rpc.testnet.citrea.xyz"],
+        },
+    },
+    blockExplorers: {
+        default: {
+            name: "Citrea Explorer",
+            url: "https://explorer.testnet.citrea.xyz",
+            apiUrl: "https://explorer.testnet.citrea.xyz/api",
+        },
+    },
+    testnet: true,
+});
+
+export const citreaTestnet = /*#__PURE__*/ defineNetwork({
+    ...citreaTestnetViem,
+    rpcUrls: {
+        ...citreaTestnetViem.rpcUrls,
+        public: citreaTestnetViem.rpcUrls.default,
+    },
+    slug: "citreaTestnet",
+    enabled: true,
+});
diff --git a/packages/chains/src/chains/index.ts b/packages/chains/src/chains/index.ts
index 9a0af296..80d0c541 100644
--- a/packages/chains/src/chains/index.ts
+++ b/packages/chains/src/chains/index.ts
@@ -16,6 +16,7 @@ export * from "./blast.js";
 export * from "./blastSepolia.js";
 export * from "./bsc.js";
 export * from "./bscTestnet.js";
+export * from "./citreaTestnet.js";
 export * from "./coreDao.js";
 export * from "./curtis.js";
 export * from "./evmos.js";
diff --git a/packages/contracts-account-abstraction/src/actions/bundler/estimateUserOperationGas.ts b/packages/contracts-account-abstraction/src/actions/bundler/estimateUserOperationGas.ts
index 37105648..0d611c9c 100644
--- a/packages/contracts-account-abstraction/src/actions/bundler/estimateUserOperationGas.ts
+++ b/packages/contracts-account-abstraction/src/actions/bundler/estimateUserOperationGas.ts
@@ -25,6 +25,7 @@ import {
     sei,
     celo,
 } from "viem/chains";
+import { citreaTestnet } from "@owlprotocol/chains";
 import { getExecutionResult } from "./simulateHandleOp.js";
 import { calcPreVerificationGas } from "./calcPreVerificationGas.js";
 import { getSupportedEntryPoints } from "./getSupportedEntryPoints.js";
@@ -172,7 +173,8 @@ export async function estimateUserOperationGas(
         chainId === celo.id ||
         chainId === sei.id ||
         chainId === seiDevnet.id ||
-        chainId === seiTestnet.id
+        chainId === seiTestnet.id ||
+        chainId === citreaTestnet.chainId
     ) {
         verificationGasLimit = 1_000_000n;
         callGasLimit = 1_000_000n;