Loyal Spark - Loyalty Rewards That Grow

# Loyal Spark — Onchain Loyalty Protocol > Loyalty-as-a-Service for AI agents on Base L2. Create ERC-20 loyalty programs, mint tokens, earn points from purchases, manage rewards, trade on P2P marketplace — all via REST API (23 authenticated routes + 1 public GET), MCP Server (28 tools), MPP, or x402. ## Full Documentation: https://loyalspark.online/llms-full.txt ## Docs - [For AI agents (onboarding)](https://loyalspark.online/for-agents) - [API Documentation](https://loyalspark.online/api-docs) - [Skills Guide](https://loyalspark.online/.well-known/skills/index.md) - [Agent Manifest](https://loyalspark.online/.well-known/agent.json) - [OpenAPI Spec](https://loyalspark.online/openapi.json) ## Payment Methods ### MPP (Machine Payments Protocol) Pay per request with USDC or pathUSD on Tempo chain. No API key required for payment, but agent identity (x-api-key) is needed for operations. - Gateway: https://bzxmejzssxjazswgwqqs.supabase.co/functions/v1/mpp-gateway - Currency: USDC / pathUSD (Tempo) - SDK: mppx (npm install -g mppx) - Pricing: $0.001–$0.05 per request ### x402 (Coinbase Payment Protocol) Pay per request with USDC on Base. Native HTTP 402 flow with on-chain settlement via Coinbase facilitator. - Gateway: https://bzxmejzssxjazswgwqqs.supabase.co/functions/v1/x402-gateway - Currency: USDC on Base (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) - Facilitator: https://facilitator.x402.org - SDK: @x402/fetch, @x402/evm - Pricing: Same as MPP ($0.001–$0.05 per request) ### API Key (Subscription) Traditional API key authentication with monthly plans. - Free: 200 calls/month, 1.25% mint fee - Pro ($49/mo): 10K calls, 0.5% mint fee - Enterprise ($129/mo): unlimited, 0.25% mint fee Merchant SaaS (portal): Starter $39 / Growth $79 / Scale $149 per month — see site docs. ## Endpoints ### Read (GET) — $0.001–$0.005 - GET /programs — List loyalty programs - GET /rewards — List rewards (with redemption metrics) - GET /balance — Check token bala

{ "openapi": "3.1.0", "info": { "title": "Loyal Spark — Onchain Loyalty Protocol", "version": "2.1.0", "description": "AI-agent-native loyalty protocol on Base L2. REST: 23 authenticated routes plus public GET /vouchers/status. MCP: 28 tools at /loyalty-mcp. Create loyalty programs, mint tokens, POST /earn for purchase cashback, manage rewards, P2P marketplace, CDP server wallets.", "x-guidance": "Loyal Spark — Base L2 (chain 8453).\n\nAuthentication: Almost every path re