refactor(svm): drop token-2022 and compute-budget deps

Replace @solana-program/compute-budget with @solana/kit built-in
setTransactionMessageComputeUnitLimit/Price. Drop @solana-program/token-2022
(only needed for non-USDC assets). Keep @solana-program/token for
findAssociatedTokenPda and getTransferCheckedInstruction.

Removes the @solana/sysvars peer dep warning on npm install.

Author: tenequm

packages/x402-proxy/CHANGELOG.md

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.10.1] - 2026-04-01
+
+### Changed
+- Dropped `@solana-program/compute-budget` and `@solana-program/token-2022` dependencies - compute budget instructions now use `@solana/kit` built-ins, non-USDC asset path removed (only USDC is supported)
+- Kept `@solana-program/token` (clean peer deps) for `findAssociatedTokenPda` and `getTransferCheckedInstruction`
+- Eliminates `@solana/sysvars` peer dependency warning on `npm install`
+
 ## [0.10.0] - 2026-04-01
 
 ### Added
@@ -328,7 +335,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `appendHistory` / `readHistory` / `calcSpend` - JSONL transaction history
 - Re-exports from `@x402/fetch`, `@x402/svm`, `@x402/evm`
 
-[Unreleased]: https://github.com/cascade-protocol/x402-proxy/compare/v0.10.0...HEAD
+[Unreleased]: https://github.com/cascade-protocol/x402-proxy/compare/v0.10.1...HEAD
+[0.10.1]: https://github.com/cascade-protocol/x402-proxy/compare/v0.10.0...v0.10.1
 [0.10.0]: https://github.com/cascade-protocol/x402-proxy/compare/v0.9.4...v0.10.0
 [0.9.4]: https://github.com/cascade-protocol/x402-proxy/compare/v0.9.3...v0.9.4
 [0.9.3]: https://github.com/cascade-protocol/x402-proxy/compare/v0.9.2...v0.9.3

packages/x402-proxy/package.json

@@ -1,6 +1,6 @@
 {
   "name": "x402-proxy",
-  "version": "0.10.0",
+  "version": "0.10.1",
   "description": "curl for x402 paid APIs. Auto-pays any endpoint on Base, Solana, and Tempo. Also works as an OpenClaw plugin.",
   "type": "module",
   "sideEffects": false,
@@ -54,9 +54,7 @@
     "@scure/bip32": "^2.0.1",
     "@scure/bip39": "^2.0.1",
     "@sinclair/typebox": "^0.34.48",
-    "@solana-program/compute-budget": "^0.15.0",
     "@solana-program/token": "^0.12.0",
-    "@solana-program/token-2022": "^0.9.0",
     "@solana/kit": "^6.5.0",
     "@stricli/core": "^1.2.6",
     "@x402/core": "^2.8.0",

packages/x402-proxy/src/commands/claude.ts

@@ -100,7 +100,7 @@ Examples:
       env: {
         ...process.env,
         ANTHROPIC_BASE_URL: `http://127.0.0.1:${started.port}`,
-        ANTHROPIC_API_KEY: "x402-proxy",
+        ANTHROPIC_MODEL: flags.model,
         ANTHROPIC_CUSTOM_MODEL_OPTION: flags.model,
       },
     });

packages/x402-proxy/src/lib/optimized-svm-scheme.ts

@@ -9,28 +9,23 @@ import {
   mainnet,
   partiallySignTransactionMessageWithSigners,
   pipe,
-  prependTransactionMessageInstruction,
   SOLANA_ERROR__RPC__TRANSPORT_HTTP_ERROR,
+  setTransactionMessageComputeUnitLimit,
+  setTransactionMessageComputeUnitPrice,
   setTransactionMessageFeePayer,
   setTransactionMessageLifetimeUsingBlockhash,
   type TransactionSigner,
 } from "@solana/kit";
 import {
-  getSetComputeUnitLimitInstruction,
-  setTransactionMessageComputeUnitPrice,
-} from "@solana-program/compute-budget";
-import { TOKEN_PROGRAM_ADDRESS } from "@solana-program/token";
-import {
-  fetchMint,
   findAssociatedTokenPda,
   getTransferCheckedInstruction,
-  TOKEN_2022_PROGRAM_ADDRESS,
-} from "@solana-program/token-2022";
+  TOKEN_PROGRAM_ADDRESS,
+} from "@solana-program/token";
 import type { PaymentRequirements, SchemeNetworkClient } from "@x402/core/types";
 
 const MEMO_PROGRAM_ADDRESS: Address = "MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr" as Address;
 const COMPUTE_UNIT_LIMIT = 20_000;
-const COMPUTE_UNIT_PRICE_MICROLAMPORTS = 1;
+const COMPUTE_UNIT_PRICE_MICROLAMPORTS = 1n;
 
 const USDC_MINT: Address = "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v" as Address;
 const USDC_DECIMALS = 6;
@@ -107,50 +102,34 @@ export class OptimizedSvmScheme implements SchemeNetworkClient {
 
   async createPaymentPayload(x402Version: number, paymentRequirements: PaymentRequirements) {
     const rpc = this.rpc;
-
     const asset = paymentRequirements.asset as Address;
 
-    let tokenProgramAddress: Address;
-    let decimals: number;
-    if (asset === USDC_MINT) {
-      tokenProgramAddress = TOKEN_PROGRAM_ADDRESS;
-      decimals = USDC_DECIMALS;
-    } else {
-      const tokenMint = await fetchMint(rpc, asset);
-      tokenProgramAddress = tokenMint.programAddress;
-      if (
-        tokenProgramAddress !== TOKEN_PROGRAM_ADDRESS &&
-        tokenProgramAddress !== TOKEN_2022_PROGRAM_ADDRESS
-      ) {
-        throw new Error("Asset was not created by a known token program");
-      }
-      decimals = tokenMint.data.decimals;
+    if (asset !== USDC_MINT) {
+      throw new Error(`Unsupported asset: ${asset}. Only USDC is supported.`);
     }
 
-    const [sourceATA] = await findAssociatedTokenPda({
-      mint: asset,
-      owner: this.signer.address,
-      tokenProgram: tokenProgramAddress,
-    });
+    const [[sourceATA], [destinationATA]] = await Promise.all([
+      findAssociatedTokenPda({
+        mint: asset,
+        owner: this.signer.address,
+        tokenProgram: TOKEN_PROGRAM_ADDRESS,
+      }),
+      findAssociatedTokenPda({
+        mint: asset,
+        owner: paymentRequirements.payTo as Address,
+        tokenProgram: TOKEN_PROGRAM_ADDRESS,
+      }),
+    ]);
 
-    const [destinationATA] = await findAssociatedTokenPda({
+    const transferIx = getTransferCheckedInstruction({
+      source: sourceATA,
       mint: asset,
-      owner: paymentRequirements.payTo as Address,
-      tokenProgram: tokenProgramAddress,
+      destination: destinationATA,
+      authority: this.signer,
+      amount: BigInt(paymentRequirements.amount),
+      decimals: USDC_DECIMALS,
     });
 
-    const transferIx = getTransferCheckedInstruction(
-      {
-        source: sourceATA,
-        mint: asset,
-        destination: destinationATA,
-        authority: this.signer,
-        amount: BigInt(paymentRequirements.amount),
-        decimals,
-      },
-      { programAddress: tokenProgramAddress },
-    );
-
     const feePayer = paymentRequirements.extra?.feePayer as Address;
     if (!feePayer) {
       throw new Error("feePayer is required in paymentRequirements.extra for SVM transactions");
@@ -172,12 +151,8 @@ export class OptimizedSvmScheme implements SchemeNetworkClient {
     const tx = pipe(
       createTransactionMessage({ version: 0 }),
       (tx) => setTransactionMessageComputeUnitPrice(COMPUTE_UNIT_PRICE_MICROLAMPORTS, tx),
+      (tx) => setTransactionMessageComputeUnitLimit(COMPUTE_UNIT_LIMIT, tx),
       (tx) => setTransactionMessageFeePayer(feePayer, tx),
-      (tx) =>
-        prependTransactionMessageInstruction(
-          getSetComputeUnitLimitInstruction({ units: COMPUTE_UNIT_LIMIT }),
-          tx,
-        ),
       (tx) => appendTransactionMessageInstructions([transferIx, memoIx], tx),
       (tx) => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash, tx),
     );

pnpm-lock.yaml

@@ -3,6 +3,7 @@ packages:
 
 onlyBuiltDependencies:
   - '@whiskeysockets/baileys'
+  - esbuild
   - koffi
   - protobufjs
   - sharp