Docs/x402 sdk 1.0.0 update#69
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Update all x402 documentation (EN + zh-Hans) from the legacy Python/TS dual-SDK model (v0.6.0) to the TypeScript-only 1.0.0 SDK. Quickstarts (sellers, human, agent): rewritten from Python/FastAPI/ PostgreSQL to TypeScript (Express + agent-wallet), mirroring the runnable examples in examples/typescript/. Removed all x402-demo repository and hosted-endpoint references. Core concepts: payment schemes updated from exact_permit/exact/ exact_gasfree to the five 1.0.0 schemes (exact, upto, batch-settlement, auth-capture, exact_gasfree). http-402 payloads updated to the v2 payload.authorization structure. Facilitator/wallet/client-server token-approval references updated to Permit2/ERC-3009. sdk-features: rebuilt as a TypeScript-only feature matrix (11 packages, 5 schemes, signer factories, observability). index/faq/AGENTS updated to the TS-only SDK. api-catalog scheme names (exact_permit -> exact) synced.
The x402-demo repository is deprecated; point readers to the runnable examples in the x402 repository (examples/typescript/) instead.
… 22)
Address code-review findings across EN + zh-Hans quickstarts and http-402:
P1: Fix install path — examples live at x402/examples/typescript (a separate
workspace), not under x402/typescript. Use cd ../examples/typescript and
run a second pnpm install there (4 quickstarts).
P1: Fix PAYMENT-SIGNATURE examples to match v2 PaymentPayload — top-level
{x402Version, accepted, payload} (no top-level scheme/network), Permit2
data under payload.permit2Authorization with permitted/spender/nonce/
deadline/witness/from, all numeric fields as strings.
P1: Remove erc20ApprovalGasSponsoring from the TRON payment-required example
(EVM-only extension; TRON server does not declare it).
P2: Complete the agent quickstart local-test flow — add clone, install, build,
and split-terminal facilitator/server steps.
P2: Bump Node.js requirement 20 -> 22 and pnpm 11 -> 11.1 (matches the SDK
engines field).
P2: Sync zh-Hans agent quickstart — add SDK 1.0.0 note, MCP examples entry,
BSC EVM_RPC_URL config.
Remove // comments from JSON code blocks (now valid JSON) and strip
trailing whitespace.
…ansferMethod - Remove 5 trailing-whitespace lines flagged by git diff --check (README, client-server, network-and-token-support, faq) - faq.md: 'runnable examples' -> 'reference examples' (per earlier review: Runnable Examples -> Reference Examples) - http-402.md (EN+ZH): convert permit2Authorization addresses (permitted.token, spender, witness.to, from) to 0x hex for EIP-712/TIP-712 signing; accepted.asset/payTo stay Base58 (TRON) - http-402.md (EN+ZH): replace extra name/version with assetTransferMethod: "permit2" for TRON + BSC so clients pick Permit2 over ERC-3009
- fee model (mechanisms/tron/src/shared/fee.ts) only has feeTo,
feeAmount, caller? — facilitatorId does not exist; drop it from
TRON fee blocks and the field table (EN+ZH)
- BSC exact has no TRON fee model, so remove the fee object from
the BSC PAYMENT-REQUIRED example (extra keeps assetTransferMethod)
- BSC extensions.erc20ApprovalGasSponsoring was shown as {} but the
server declares info (description+version) and a JSON schema; show
the real info plus an abbreviated schema (real required array) with
a note marking the omitted properties (EN+ZH)
jizhen181-dot
approved these changes
Jul 10, 2026
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