Mermaid

$0.005

Render a Mermaid diagram to an image (PNG or SVG). Returns a base64-encoded image. Options: format (png|svg), theme (default|dark|forest|neutral), scale (1-4, PNG only).

POST https://x402.freeq.one/tools/mermaid

Try it (x402 payment flow)

⚡ Try with your wallet — live payment

curl -X POST https://x402.freeq.one/tools/mermaid \ -H "Content-Type: application/json" \ -d '{"code": "graph TD; A-->B;", "format": "svg"}'

Without payment, the server returns 402 Payment Required with x402 challenge details. A paying agent signs a USDC transaction on Base and retries with the payment header.

⚡ Live payment playground → Service card OpenAPI spec All APIs