Quick Start

1. Install the lobster.cash wallet (if you haven't already)

openclaw plugins install @crossmint/lobster.cash

Then tell your agent: "Set up my wallet" — open the consent link and approve.

2. Install the Dexter marketplace skill

openclaw plugins install @dexterai/dexter-lobster

3. Start using paid APIs

Ask your agent:

• "What smart money wallets are buying right now?"
• "Scan this token contract for honeypots"
• "Get Polymarket odds on the next election"
• "Run this prompt through Claude via OpenRouter"

The skill searches the Dexter bazaar, shows you pricing, and when you want to call an endpoint, lobster.cash handles the payment through the Dexter facilitator.

How It Works

Agent → dexter-lobster skill → Dexter Bazaar (search / pricing)
                              → lobster.cash  (payment delegation)
                              → x402.dexter.cash (settlement)
                              → Solana (on-chain)

Search and pricing are free. When the agent calls a paid endpoint, it describes the payment intent and lobster.cash handles execution through the Dexter facilitator. The skill never touches private keys, never builds transactions, never signs anything.

What's Available

The Dexter bazaar indexes x402 endpoints from across the ecosystem. Featured providers include Nansen, Alchemy, Allium, CoinGecko, OpenRouter, Exa, Dome, Quick Intel, Quicknode, Laso Finance, and many more -- covering DeFi analytics, AI/LLM inference, prediction markets, blockchain infrastructure, security scanning, person/company intelligence, payments, and document parsing.

The catalog grows automatically. New endpoints are crawled from facilitator discovery feeds every 2 hours, auto-named by AI, and quality-verified with paid test calls every 24 hours. Run ./scripts/x402.sh categories to see the current breakdown.

Get Your API Listed

Any x402-enabled endpoint can appear in the Dexter bazaar. Here's how:

1. Make your API x402-compliant — return HTTP 402 with an accepts array containing your pricing, asset (USDC), network, and payTo wallet. Use @dexterai/x402 server middleware or any x402-compatible stack.

2. Facilitate through a known facilitator — endpoints that settle through x402.dexter.cash, Coinbase CDP, PayAI, or Ultraviolet are automatically crawled every 2 hours.

3. Wait for ingestion — once crawled, Dexter's AI auto-namer generates a display name, description, and category for your endpoint. The quality verifier then pays for a real call, generates realistic test inputs using AI, scores the response quality (0–100), and writes detailed notes.

4. Pass quality verification — endpoints scoring 75+ are auto-approved for the marketplace. Below 50 gets flagged for review. The verifier re-tests every 24 hours so quality stays current.

5. Optional: register directly — submit your endpoint URL via POST /api/x402/resources/register on api.dexter.cash to skip waiting for the next crawl cycle.

Facilitator

Settlement runs through x402.dexter.cash:

• Gas-sponsored — you pay $0 in SOL/ETH
• Smart wallet support — PDA wallets (Crossmint, Squads) via simulation-based CPI verification
• Multi-network — Solana, Base, Polygon, Arbitrum, Optimism, SKALE
• x402 v1 + v2 — backward-compatible with both protocol versions

lobster.cash Compatibility

Built to the lobster.cash skill compatibility guide:

• Wallet precheck before every payment
• Payment intent description — not execution
• Full error handling (insufficient balance, wallet not configured, payment failure)
• Zero key handling — all wallet operations delegated to lobster.cash

Repo Structure

skills/SKILL.md           ← what the agent reads
openclaw.plugin.json      ← plugin manifest
_meta.json                ← registry metadata
scripts/x402.sh           ← CLI for search & pricing
references/
  api-endpoints.md        ← bazaar API docs
  categories.md           ← category breakdown

Links

| | | |---|---| | Marketplace | dexter.cash/marketplace | | Facilitator | x402.dexter.cash | | Agent Wallet | lobster.cash | | x402 SDK | @dexterai/x402 | | Register an API | POST api.dexter.cash/api/x402/resources/register | | Compatibility Guide | lobster.cash/docs/skill-compatibility-guide |