OpenDexter
OpenDexter plugin for OpenClaw — search, price-check, and pay for any x402 API with automatic USDC settlement across Solana, Base, Polygon, Arbitrum, Optimism, and Avalanche.
Install
openclaw plugins install clawhub:@dexterai/opendexter-plugin
@dexterai/opendexter-plugin
OpenDexter plugin for OpenClaw — search, price-check, and pay for x402 APIs with automatic USDC settlement.
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.