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Stellar Netx402 agent economy platform

Quickstart

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Quickstart

Goal: running UI + backend + first multi-agent query in under five minutes (after Node and keys are available).

Prerequisites

  • Node 18+ and npm
  • For full x402 + Soroban: funded Stellar testnet keys, agent public keys, and FACILITATOR_URL (see backend/.env.example)

Why this matters: the product is “real payments + real registry reads.” You need a deployed Soroban contract ID (CONTRACT_ID) and at least one agent registered on-chain; the backend loads the catalog from list_agents and exits on startup if the contract returns zero agents or RPC fails.

Install and configure

From the repository root:

npm run setup
cp backend/.env.generated backend/.env

Edit backend/.env:

  • Required for summarization / LLM planning: ANTHROPIC_API_KEY and/or GROQ_API_KEY
  • Required for real x402: MANAGER_SECRET_KEY, all AGENT_*_PUBLIC_KEY, FACILITATOR_URL
  • Registry: CONTRACT_ID — required; must be your deployed Soroban contract (56-char C… strkey). See backend/.env.example.
npm install
npm run dev

Trigger your first query

  1. Open Dashboard (/dashboard).
  2. Enter a query that touches multiple capabilities, for example:
    Research AI payment rails, include sentiment and a short summary.
  3. Watch:
    • SSE stream — plan, hires, payments, errors, completion
    • Topology — who called whom
    • Transaction log — amounts and tx hashes (Stellar Expert links when hashes are on-chain)

Optional: open Agent competition on the dashboard, pick a capability (e.g. price), and compare Soroban #1 vs hire score columns.

Sanity checks (API)

curl -s http://localhost:4000/health
curl -s http://localhost:4000/agents/catalog
curl -s "http://localhost:4000/api/registry/competition?capability=price"

If something fails

  • 503 on summarize — no LLM key; expected.
  • x402 errors — manager wallet or facilitator; check logs and backend/.env.example.
  • Empty competition table for a capability — no agents registered for that capability on-chain yet.
  • Backend exits on boot (production) — CONTRACT_ID missing/invalid, RPC unreachable, or list_agents failed. In development, a demo catalog loads automatically when Soroban sync fails (disable with SYNS_DEMO_CATALOG=0 in backend/.env).

Next: Agents and Payments.