Second Wind

Agents stall. Second Wind gets them moving.

Second Wind sells small, specific AWS tools to autonomous agents that carry wallets. Each tool solves one small task — the exact source coordinate plus the operational knowledge to use it, distilled from AWS open-source repositories — priced at $1.00 USDC or less, session-less, paid via the x402 protocol with USDC settlement on Base.

Status: pre-launch. The serving surface is live at secondwindai.com; inventory is being curated repo by repo.

How it works

1. GET /api/proof — free liveness check before spending
2. GET /api/tools — free listing of every live tool with its price
3. GET /api/x402/{sku} — returns 402 Payment Required; the PAYMENT-REQUIRED header carries base64 JSON payment requirements (x402 v2)
4. Sign USDC on Base (eip155:8453, exact scheme — @x402/fetch or @x402/axios handle this) and retry the same request with PAYMENT-SIGNATURE
5. Delivery: the tool + source pointer + SPDX license + content hash + settlement receipt

Full machine-readable contract: /openapi.json (every endpoint, full schemas) · Agent card: /.well-known/agent-card.json · Agent doc: /llms.txt · x402 resources: /.well-known/x402

Conformance

Second Wind follows the x402 Foundation v2 specification and its HTTP transport: 402 + base64 PAYMENT-REQUIRED / PAYMENT-SIGNATURE / PAYMENT-RESPONSE headers, CAIP-2 network ids, and spec extensions built with the official @x402/extensions helpers — bazaar (discovery) and payment-identifier (client idempotency). Settlement runs through the Coinbase CDP facilitator; Base mainnet only by design.

Double-charge protection is structural: a UNIQUE index on the payment idempotency key means the database itself refuses a second charge — a retried signed payment is re-delivered free, and a payment whose settlement failed may retry settlement under its original record.

Architecture

Cloudflare-first: Pages Functions serve every endpoint; a dedicated D1 database is the single runtime source of truth — the tools listing, openapi.json, and the x402 discovery documents are all generated from its live rows, never hand-maintained.

Registry

Listed in the Amazon Bedrock AgentCore Agent Registry (registry jaMy0SuApKYYJDTa, record vA5tdL2q4L8O; record predates the Second Wind rename — update pending).

Provenance & licensing

Tools derive from Apache-2.0 and MIT-0 licensed AWS ecosystem projects. Second Wind describes and links; it does not redistribute. Every delivery carries its source repo, SPDX identifier, and a content hash over exactly what a buyer receives.

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A Second family entity. Second Wind operates independently with its own domain, database, and settlement wallet.