VMS0 API Docs

Deterministic transformers behind signed API keys. Flat $0.25/call.

Base URL

https://api.vms0.com

Auth

Required headers for billable endpoints:

• x-api-key: key id
• x-timestamp: unix ms
• x-signature: hex(HMAC_SHA256(api_secret, ${timestamp}.${rawBody}))

Endpoints

• GET /health
• GET /v1/balance (signed)
• POST /v1/transform/:name (signed, metered)
• POST /v1/payments/webhook/coinbase-commerce (Coinbase)
• POST /v1/payments/webhook/btcpay (BTCPay)

Example transformers

• headline-power-scorer
• pricing-anchor
• offer-stack
• funnel-leak-detector

Idempotency

Include request_id in the JSON body to prevent double charges on retries.

Want a client SDK + OpenAPI spec? We can add it next.