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0.1.0

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402arc-client

402ARC client: payingFetch(), a fetch that signs an EIP-3009 USDC payment and retries when an API answers 402 on Arc.

agentsarccircleeip-3009paymentsusdcx402
Published16 Sept 2026
Direct dependencies4
Transitive dependenciesNot calculated

README

Current package documentation

402arc-client

A fetch wrapper that transparently pays x402 challenges in USDC on Arc, part of 402ARC.

npm i 402arc-client

import { createSigner, payingFetch } from "402arc-client";

const pay = payingFetch({
  account: createSigner(process.env.WALLET_KEY),
  maxValue: 10_000n,        // spend cap per request: 0.01 USDC
});

const res = await pay("https://api.example.dev/report");
// 402 → signs EIP-3009 authorization → retries → 200

Includes a per-payment spend cap and network allowlist so an agent can pay autonomously without being drained. See the docs. MIT.

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Declared dependencies 4

Native requirements
4 direct targetsNot calculated transitive count
Package / targetRequirementRelationship
viem
Environment
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}
^2.21.0runtime
402arc-core
Environment
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  "alias": false,
  "peer_metadata": null
}
0.1.0runtime
typescript
Environment
{
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  "alias": false,
  "peer_metadata": null
}
^5.5.0development
@types/node
Environment
{
  "local_name": "@types/node",
  "alias": false,
  "peer_metadata": null
}
^22.0.0development

Distribution files

1 collected
Distribution 1

Source distribution

Source file
Checksums from source
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Metadata history

Meaningful changes
Current collected state Current

Observed since 20 Oct, 19:57 UTC

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Record identity

package_version:0beb1d7ea1870852cb84b74c061fe2cdab1002cf0ef57da2d647ed2ac6d810b4

Other collected versions

0.1.116 SeptView all collected versions →