<p align="center"> <img src="https://raw.githubusercontent.com/Dexter-DAO/dexter-x402-sdk/main/assets/dexter-wordmark.svg"; alt="Dexter" width="360"> </p>
<h1 align="center">@dexterai/opendexter-plugin</h1>
<p align="center"> <strong>OpenDexter plugin for OpenClaw — search, price-check, and pay for x402 APIs with automatic USDC settlement.</strong> </p>
<p align="center"> <a href="https://www.npmjs.com/package/@dexterai/opendexter-plugin"><img src="https://img.shields.io/npm/v/@dexterai/opendexter-plugin.svg"; alt="npm"></a> <a href="https://nodejs.org"><img src="https://img.shields.io/badge/node-%3E=18-brightgreen.svg"; alt="Node"></a> <a href="https://clawhub.ai/skills/opendexter"><img src="https://img.shields.io/badge/ClawHub-opendexter-blue"; alt="ClawHub"></a> <a href="https://dexter.cash/opendexter"><img src="https://img.shields.io/badge/Marketplace-OpenDexter-success"; alt="Marketplace"></a> </p>
What It Does
Gives any OpenClaw agent access to the x402 API marketplace. The agent can discover paid APIs, preview pricing, and call endpoints with automatic USDC payment — no API keys or subscriptions needed for the endpoints themselves.
| Tool | Purpose |
|---|
| `x402_search` | Search the OpenDexter marketplace for paid APIs |
| `x402_check` | Probe an endpoint for pricing without paying |
| `x402_fetch` | Call any x402 API with automatic payment |
| `x402_pay` | Alias for `x402_fetch` |
| `x402_wallet` | Show wallet configuration and status |
Payments work across Solana, Base, Polygon, Arbitrum, Optimism, and Avalanche. The plugin auto-selects the best-funded chain.
Install
From ClawHub
openclaw plugins install @dexterai/opendexter-plugin
From npm
npm install @dexterai/opendexter-plugin
Configuration
Set wallet keys in the OpenClaw plugin config or as environment variables:
| Config Key | Env Var | Description |
|---|
| `svmPrivateKey` | `SVM_PRIVATE_KEY` | Solana wallet (base58) |
| `evmPrivateKey` | `EVM_PRIVATE_KEY` | EVM wallet (hex, 0x...) |
| `defaultNetwork` | `DEFAULT_NETWORK` | Preferred chain (default: auto) |
| `maxPaymentUSDC` | `MAX_PAYMENT_USDC` | Per-call spending limit (default: $0.50) |
| `facilitatorUrl` | `FACILITATOR_URL` | Settlement processor (default: https://x402.dexter.cash) |
| `marketplaceUrl` | `MARKETPLACE_URL` | Marketplace API endpoint |
At minimum, configure one wallet key (Solana or EVM) and fund it with USDC.
How It Works
User: "Find me a sentiment analysis API"
→ x402_search("sentiment analysis")
→ Shows results with prices and quality scores
User: "How much does that one cost?"
→ x402_check(url)
→ Shows per-chain pricing
User: "Call it"
→ x402_fetch(url, params)
→ Signs USDC payment, calls endpoint, returns data + receipt
Settlement goes through the Dexter facilitator — zero fees, zero gas for the caller.
Pinata Agent Template
This plugin powers the OpenDexter Agent template for Pinata. Deploy a fully configured x402 agent in one click.
Built By
Dexter Intelligence — the payment, discovery, and monetization layer for the agent economy.