[Writer] Weekly skills update — 2026-04-01

skills/alchemy-api/references/operational-supported-networks.md

@@ -9,7 +9,7 @@ tags:
 related:
   - node-json-rpc.md
   - solana-rpc.md
-updated: 2026-03-02
+updated: 2026-04-01
 ---
 # Supported Networks
 
@@ -226,7 +226,6 @@ superseed-mainnet
 superseed-sepolia
 synd-mainnet
 syndicate-manchego
-tea-sepolia
 tempo-testnet
 tron-mainnet
 tron-testnet

skills/alchemy-api/references/wallets-wallet-apis.md

@@ -8,7 +8,7 @@ tags:
 related:
   - wallets-account-kit.md
   - operational-auth-and-keys.md
-updated: 2026-02-05
+updated: 2026-04-01
 ---
 # Wallet APIs
 
@@ -23,9 +23,32 @@ High-level wallet APIs enable programmatic wallet operations such as signing, tr
 - Prefer client-side signing for user security.
 - Use server-side APIs only with strong access controls.
 
+## Common Errors & Troubleshooting
+When users report Wallet API failures, check for these common error patterns:
+
+| Error | Code | Cause & Fix |
+|---|---|---|
+| `replacement underpriced` | -32602 | Sending a call from the same sender before a pending call confirms. Wait for confirmation or increase fees. |
+| `execution reverted` | -32521 | Calls revert on-chain. Verify correct method, contract address, chain, and ABI encoding. |
+| `AA23 reverted` | -32500 | Sender signature validation reverted or OOG. Check signature and gas limits. |
+| `AA25 invalid account nonce` | -32500 | Nonce reuse. Use a fresh nonce. |
+| `Policy ID(s) not found` | -32600 | Gas sponsorship policy misconfigured. Ensure API key matches the policy's app, policy is active, and network is allowed. |
+| `invalid account signature` | -32507 | Incorrect signature. Verify signing matches the Wallet API quickstart flow. |
+| `precheck failed: sender balance` | -32000 | Sender balance too low for gas. Add funds or include a Gas Sponsorship Policy ID. |
+| `maxFeePerGas too low` | -32000 | Base fee changed between prepare and send. Re-prepare immediately before sending. |
+| `maxPriorityFeePerGas too low` | -32000 | Priority fee changed. Re-prepare before sending. |
+| `preVerificationGas too low` | -32000 | Gas estimate stale. Re-prepare the call. |
+| `total gas limit too high` | -32000 | Combined gas exceeds max. Split into multiple operations. |
+| `EIP-7702 not enabled` | -32602 | Chain doesn't support EIP-7702. Use `wallet_requestAccount` for a smart contract account instead. |
+| `EIP-7702 authorization signature is invalid` | -32000 | Malformed or wrong-key signature for EIP-7702 authorization. |
+| `EIP-7702 nonce mismatch` | -32000 | Another tx sent between prepare and send. Avoid concurrent txs from the same account. |
+
+**Key pattern:** Most `precheck failed` errors (-32000) resolve by re-preparing the call immediately before sending — minimize delay between `wallet_prepareCalls` and `wallet_sendPreparedCalls`.
+
 ## Related Files
 - `wallets-account-kit.md`
 - `operational-auth-and-keys.md`
 
 ## Official Docs
 - [Account Kit Wallet Client](https://www.alchemy.com/docs/wallets/reference/account-kit/wallet-client)
+- [Wallet API Errors](https://www.alchemy.com/docs/wallets/troubleshooting/wallet-apis-errors)