Strands Agents

agent402-strands · npm · MIT

Strands tool({...}) instances for TypeScript agents, including Strands agents running on AWS Bedrock AgentCore. Pull a curated subset of the catalog into the agent; when it calls a tool, the adapter solves a proof-of-work or signs an x402 payment and returns the structured result.

Install

npm install agent402-strands @strands-agents/sdk zod

Example

import { Agent } from "@strands-agents/sdk";
import { agent402Tools } from "agent402-strands";

const { tools } = await agent402Tools({
  slugs: ["extract", "hash", "render", "screenshot"],
});

const agent = new Agent({ tools });
const out = await agent.invoke("Extract the article at https://example.com");

What it exposes

  • One native tool per catalog slug you pass in slugs (a short list gives the model better tool selection).
  • With no slugs, the free-tier catalog: every compute-payable tool (freeOnly: true is the default).
  • An execute(name, args) function that runs a tool call and pays for it underneath.
  • baseUrl points the adapter at a self-hosted Agent402 instance.
  • A client field with the underlying buyer SDK (find(), call(), clearCache()), and agent402Execute() for a standalone executor.

How payment works

  • Free tier: compute-payable tools settle with a sha256 proof-of-work solved in-process. No wallet, no API key.
  • Wallet-only tools (browser, network, memory, live data): set freeOnly: false and pass a payment-wrapped fetch. An @x402/fetch fetch pays in USDC over x402; a stock mppx fetch pays over MPP. The same 402 carries both offers.
  • Prices come from the live catalog at /api/pricing and are quoted in every 402 before anything is signed.
const { tools } = await agent402Tools({ freeOnly: false, fetch: payFetch });

A call that fails is not charged: settlement runs after the tool and only on a successful response. Background: What x402 is · MPP (Machine Payments Protocol).

Tools to try first

Extract article$0.010
extract
Hash$0.001
hash
Browser render$0.02
render
Screenshot$0.004
screenshot
Web search$0.02
search

Every tool, price and input schema: the catalog.

Links

agent402-strands on npm · source on GitHub · configuration reference
Guides: Use Agent402 from Claude Code, Cursor, VS Code, Windsurf, Cline, Roo Code, Codex CLI, Gemini CLI, Muse Code, Continue, ElizaOS, AgentCore and any OpenAI SDK · Let your agent pay anyone: the non-custodial x402 payments toolkit
All integrations