Build with Onchain Router · Onchain Router

Onchain Router by AgenticFI gives your agents one provider-neutral API for text, images, text to speech, and speech to text. Pay per successful request with USDC on Base and receive a durable receipt. You do not need payer registration or a provider API key.

Choose how you connect

Integration	Best for	Availability	Source
Direct API	You already have an x402 buyer	Public API	Use the public API
TypeScript SDK	You are building a Node.js application	npm alpha · 0.1.2	GitHub
Buyer CLI	You work in a terminal	npm alpha · 0.1.2	GitHub
MCP	Your agent uses native tools	npm alpha · 0.1.2	GitHub
Local OpenAI proxy	Your app accepts an OpenAI base URL	npm alpha · 0.1.2	GitHub
Agent Skill	Your coding agent follows reusable instructions	MIT source · alpha	GitHub
OpenClaw	You use OpenClaw agents	GitHub alpha · 0.1.0	GitHub
Hermes Agent	You use Hermes Agent	GitHub alpha · 0.1.0	GitHub

AgenticFI client packages version 0.1.2 are public MIT-licensed alphas on npm under the alpha tag. OpenClaw and Hermes version 0.1.0 are public MIT alphas installable through their hosts’ native GitHub installers. The Python SDK remains source-only; ClawHub and PyPI listings are not claimed. Verify the package scope, alpha tag, version, and repository before installation.

Buyer Runtime is the shared wallet and payment foundation for the local tools, not another endpoint to choose. Read how the runtime works.

Start building today

If you already have an official x402 buyer supporting Base USDC exact, follow the first-request guide. A standard OpenAI client alone cannot pay the public API: it needs an x402-capable transport or our local proxy.

For our client tools, review installation and availability, then install the 0.1.2 npm alpha or a 0.1.0 host-native GitHub alpha. OpenClaw and Hermes Agent have dedicated copyable install guides. For a browser walkthrough, see Workbench.

Choose a capability

Text: Chat Completions or Anthropic-style Messages.
Images: one generated image with a hosted URL or Base64 output.
Text to speech: hosted MP3 audio with a curated voice.
Speech to text: an MP3 transcript, with provider-retention disclosure.

The current catalog determines which models and parameters work. The brand stays provider-neutral; supporting a request format does not imply support for that provider's models. Video is not currently available.

Source of truth

Use live models, live pricing, and OpenAPI. The HTTP 402 challenge determines the exact request price; the receipt confirms payment and normalized usage. See pricing for the 0% service fee launch promotion and the separate fixed fee.

For agents, llms.txt is the compact index and llms-full.txt is the complete Markdown documentation. products.json records publication and build availability, not live uptime.