diff --git a/packages/auth/src/services.ts b/packages/auth/src/services.ts
index 9db2553cf..ee4915430 100644
--- a/packages/auth/src/services.ts
+++ b/packages/auth/src/services.ts
@@ -27,20 +27,16 @@ export type SessionJWT = {
   expiration: number
 }
 
-type SessionJWTPromise = {
+export type SessionJWTPromise = {
   token: Promise<string>
   expiration: number
 }
 
-type ProofStringPromise = {
+export type ProofStringPromise = {
   proofString: Promise<string>
   expiration: number
 }
 
-function getJWTExpiration(jwt: string): number {
-  return jwtDecodeClaims<{ exp: number }>(jwt).exp
-}
-
 // Default session expiration of ETHAuth token (1 week)
 export const DEFAULT_SESSION_EXPIRATION = 60 * 60 * 24 * 7
 
@@ -83,6 +79,7 @@ export class Services {
 
   onAuth(cb: (result: PromiseSettledResult<void>) => void) {
     this.onAuthCallbacks.push(cb)
+    return () => this.onAuthCallbacks = this.onAuthCallbacks.filter(c => c !== cb)
   }
 
   async dump(): Promise<{
@@ -108,12 +105,12 @@ export class Services {
       if (!url) throw Error('No sequence api url')
   
       let jwtAuth: string | undefined
-      for (let i = 0; ; i++) {
+      for (let i = 1; ; i++) {
         try {
           jwtAuth = (await this.getJWT(true)).token
           break
         } catch (error) {
-          if (i === maxTries - 1) {
+          if (i === maxTries) {
             console.error(`couldn't authenticate after ${maxTries} attempts`, error)
             throw error
           }
diff --git a/packages/auth/src/session.ts b/packages/auth/src/session.ts
index 0492447fd..e1adb962b 100644
--- a/packages/auth/src/session.ts
+++ b/packages/auth/src/session.ts
@@ -104,10 +104,14 @@ export class Session {
       }))
 
       for (const config of configs) {
-        const coder = config.config && universal.genericCoderFor(config.config.version)
-        const signers = coder && config.config && coder.config.signersOf(config.config)
+        if (!config.config) {
+          continue
+        }
 
-        if (signers && signers.length === 1 && signers[0].address === referenceSigner) {
+        const coder = universal.genericCoderFor(config.config.version)
+        const signers = coder.config.signersOf(config.config)
+    
+        if (signers.length === 1 && signers[0].address === referenceSigner) {
           return config.wallet
         }
       }
diff --git a/packages/wallet/src/wallet.ts b/packages/wallet/src/wallet.ts
index 09a5b7962..89363a035 100644
--- a/packages/wallet/src/wallet.ts
+++ b/packages/wallet/src/wallet.ts
@@ -276,7 +276,7 @@ export class Wallet<
     return this.signTransactions(bundle.transactions, bundle.nonce)
   }
 
-  async nonceFor(
+  async fetchNonceOrSpace(
     nonce?: ethers.BigNumberish | { space: ethers.BigNumberish }
   ): Promise<ethers.BigNumberish> {
     let spaceValue
@@ -315,7 +315,7 @@ export class Wallet<
       })
     }
 
-    const defaultedNonce = await this.nonceFor(nonce)
+    const defaultedNonce = await this.fetchNonceOrSpace(nonce)
     const digest = commons.transaction.digestOfTransactions(defaultedNonce, transactions)
     const signature = await this.signDigest(digest, { transactions })