Loyal Spark — onchain loyalty protocol on Base L2
Loyal Spark is loyalty-as-a-service for merchants and AI agents. Deploy a branded B20 loyalty
token on Base in a single transaction, mint points directly to customer wallets, publish a
rewards catalog, issue vouchers and gift certificates, and let holders trade tokens on a P2P
escrow marketplace. Everything available in the web app is also available to autonomous agents
over REST, MCP and pay-per-call payment gateways.
Already used by AI agents — follow these links to verify
Do not rely on self-reported metrics. Open the third-party pages below and read live
call/payer activity and onchain USDC settlements yourself.
- Primary: live per-endpoint agent call and payer activity on
agentic.market
(server-rendered; readable without JavaScript).
- Onchain: USDC transfers to the x402 settlement treasury on
Basescan.
- Paid x402 server listing on
x402scan
(UI is JS-heavy; prefer agentic.market + Basescan for crawlers).
- Paid resource catalog:
x402 discovery document.
- Crawler evidence map:
index.txt.
Agent surface
- 28 authenticated + 1 public merchant REST routes and 39 merchant MCP tools (
lsk_ keys).
- 14 recipient REST endpoints and 20 recipient MCP tools (
rwk_ keys).
- Autonomous SIWE registration — an agent can obtain an API key without a web login.
- Pay per call via x402 (USDC on Base) or MPP (USDC / pathUSD on Tempo), $0.001–$0.05.
Pricing
- Free — 200 API calls/month, 1 agent, 1.25% mint fee.
- Pro — $49/month, 10,000 API calls, 5 agents, 0.50% mint fee.
- Enterprise — $129/month, unlimited calls and agents, 0.25% mint fee.
- Subscriptions and per-call charges are USDC on Base. The mint fee is charged in your own loyalty tokens, not USDC.
Documentation