Can I use Claude Code for Solidity through Router One?

Yes. Point Claude Code at the Anthropic-compatible base URL https://api.router.one and run it on your Solidity repo.

Can I use OpenAI Codex CLI as well?

Yes. Codex and other OpenAI-compatible clients use the /v1 endpoint with the same API key set.

Can I pay for coding tools with stablecoins?

Yes. Top up with USDT or USDC; the balance funds Claude Code and Codex usage per token.

Can I cap spend per developer or repo?

Yes. Issue a separate API key per developer, repo, or CI environment, each with a hard budget cap.

Does this replace a smart contract audit?

No. Claude Code and Codex assist human review. A professional audit is still required before mainnet deployment.

Is contract code in prompts stored?

No. Router One does not retain prompt or completion bodies; only request metadata is logged.

Web3 coding workflow

Use Claude Code and Codex for Solidity Workflows

Solidity teams use Claude Code and OpenAI Codex CLI for contract review, test generation, and deployment checks. Router One puts both behind one gateway: an OpenAI-compatible endpoint for Codex, an Anthropic-compatible endpoint for Claude Code, per-key budget caps, request traces, and USDT/USDC top-ups for teams funded from a stablecoin treasury.

Create an API key Claude Code setup

Use case: Solidity review and coding workflows
Tools: Claude Code, OpenAI Codex CLI
Endpoints: /v1 for Codex, root for Claude Code
Billing: USDT/USDC top-ups, USD wallet

Solidity workflows Claude Code and Codex handle well

Contract review

Walk through Solidity contracts to flag reentrancy, access control, and arithmetic concerns for a human auditor.

Foundry test generation

Draft Foundry or Hardhat test cases that cover the edge conditions you describe.

Audit checklist drafting

Generate a structured review checklist before a contract goes to a formal audit.

Deployment script review

Read deployment and upgrade scripts to surface mismatched addresses or unsafe steps.

Why route Solidity coding tools through Router One

One account for both tools

Use Claude Code and Codex from the same wallet balance and API key set.

Per-key budget caps

Cap spend per developer, repo, or CI environment before an agent loops on a large codebase.

Request traces

See model, tokens, latency, and cost for each Claude Code or Codex call.

Stablecoin-funded billing

Top up with USDT or USDC so a Web3 team funds coding tools from its existing treasury.

Boundaries

Review assist, not an audit

Model output supports human review. It does not replace a professional smart contract audit.

No execution

Router One returns code and text. It does not compile, deploy, or send transactions.

No prompt storage

Contract code in prompts is not retained; only request metadata is logged for billing and observability.

Point Claude Code and Codex at Router One

Set the base URL and API key, then run Claude Code or Codex as usual on your Solidity repo.

.env

# Codex CLI / OpenAI-compatible clients
OPENAI_BASE_URL=https://api.router.one/v1
OPENAI_API_KEY=sk-rk-your-router-one-key


# Claude Code / Anthropic-compatible tools
ANTHROPIC_BASE_URL=https://api.router.one
ANTHROPIC_API_KEY=sk-rk-your-router-one-key

FAQ

Can I use Claude Code for Solidity through Router One?: Yes. Point Claude Code at the Anthropic-compatible base URL https://api.router.one and run it on your Solidity repo.
Can I use OpenAI Codex CLI as well?: Yes. Codex and other OpenAI-compatible clients use the /v1 endpoint with the same API key set.
Can I pay for coding tools with stablecoins?: Yes. Top up with USDT or USDC; the balance funds Claude Code and Codex usage per token.
Can I cap spend per developer or repo?: Yes. Issue a separate API key per developer, repo, or CI environment, each with a hard budget cap.
Does this replace a smart contract audit?: No. Claude Code and Codex assist human review. A professional audit is still required before mainnet deployment.
Is contract code in prompts stored?: No. Router One does not retain prompt or completion bodies; only request metadata is logged.