Noah Gundotra ngundotra

sequenceDiagram
  participant Client
  participant Server
  participant Facilitator

  Client->>Server: GET /api
  Server->>Client: HTTP 402 - Payment Required with { extra: { account: pubkey } }
  Client->>Solana: GET /blockhash
 Client-&gt;&gt;Client: Form templated transaction, cosign, serialize

x402 on Solana: Permanent Delegate Flow

Flow Diagram

sequenceDiagram
    participant User as User<br/>(Has: Wallet, xUSDC)<br/>(Knows: Sign messages)
    participant Client as Client App<br/>(x402 SDK)
    participant Server as Resource Server<br/>(Has: Solana wallet)<br/>(Knows: Basic web)
    participant Facilitator as Facilitator<br/>(Has: Permanent Delegate)<br/>(Knows: Solana txs)

Surfpool RPC Response Parsing Error

Issue Description

When sending transactions that result in errors through surfpool, the Python solana-py client crashes with a panic instead of handling the error gracefully:

thread '<unnamed>' panicked at crates/rpc-responses/src/lib.rs:363:84:
called `Result::unwrap()` on an `Err` value: Error("missing field `data`", line: 0, column: 0)

	/**
	* Jupiter Swap Test Transaction for Surfpool
	* Creates a test transaction that can be executed in the Surfpool environment
	* bun run surfpool-jupiter-test.ts
	*/

	import {
	Connection,
	PublicKey,
	VersionedTransaction,

	import {
	Connection,
	Keypair,
	PublicKey,
	Transaction,
	ComputeBudgetProgram,
	sendAndConfirmTransaction,
	VersionedTransaction,
	TransactionMessage
	} from '@solana/web3.js';

	import {
	createSolanaRpc,
	getBase58Codec,
	getBase64Encoder,
	type Address,
	type Base58EncodedBytes,
	type Codec,
	type GetProgramAccountsDatasizeFilter,
	type GetProgramAccountsMemcmpFilter,
	type Lamports,

	{
	"connector": {
	"id": "connector_6849e5b098d4819183df84983fb13a6e",
	"created_at": "2025-06-11T20:23:12.597222Z",
	"connector_type": "MCP",
	"name": "Solana Developer Resources",
	"description": "Returns the most up to date resources for documentation across the Solana ecosystem",
	"service": "https://mcp.solana.com",
	"logo_url": null,
	"logo_url_dark": null,

	[
	{
	"key": "def_valueBasedHealthCare",
	"title": "Value-Based Health Care",
	"definition": "Value-based health care, which focuses on measuring health outcomes and costs",
	"lines": [
	"3-4"
	],
	"article_id": "9b72d5ebf17648c3a68e95fa57f1542b",
	"article_url": "https://storage.googleapis.com/download/storage/v1/b/teleo-files-cdn/o/teleo%2Fdocs%2Fpid-ce6b7d54c03840adb1f5390bbcf55e05%2Fdid-9b72d5ebf17648c3a68e95fa57f1542b.md?alt=media",

	[
	{
	"catalogType": "definitions",
	"items": [
	{
	"key": "Def_0to1Innovation",
	"title": "0 to 1 Innovation",
	"definition": "Intensive progress involves going from 0 to 1 (not simply the 1 to n of globalization).",
	"lines": [
	"assay3:41",