Two Minute Toolkit TwoMinuteStop Start Continue
Slide Deck Quality Stop Start Continue Charts in 2 minutes or less

Stop Start Continue HTTP API

POST a small JSON description and get back a deck-ready PNG (or SVG). The endpoint is open and CORS-enabled, so it works from browsers, scripts, CI and anywhere else you can make an HTTP call. The same JSON opens in the builder.

POST https://www.twominutetoolkit.com/api/render/stopstartcontinue
Fair use: rate-limited to 20 requests a minute per IP (bursts capped at 5 a second), shared across every Two Minute tool, with a 64 KB body cap. No key or sign-up needed.

Try it

Open in builder

Code samples


        

        

      

    


    

      

        
Live preview

        
Click Render to call the API.

      

      

        
Request body

        

            
FieldTypeDescription

            
titlestringHeading shown top-left of the chart at 22px bold. Every chart has one title row; an empty string hides it.
max 140 chars · default "Stop, start, continue"

            
widthintegerChart width in pixels (640–2400, default 1280, which suits a 16:9 slide). PNG output renders at 2x. Height is computed from the content.
640–2400 · default 1280

            
palettestring[]Hex colours. With the default palette the columns are red (Stop), emerald (Start) and sky (Continue); pass brand colours and they apply to the columns left to right instead. Default: indigo, sky, emerald, amber, red, gray.
max 12 items · default ["#4f46e5","#0ea5e9","#10b981","#f59e0b","#ef4444","#6b7280"]

            
subjectstringOptional subject of the review, e.g. "Sprint 14 retro" or "Q3 onboarding review", shown small and muted in the title row's right corner (or above the columns when the title is long). Omit for none.
max 80 chars

            
stopstring[]What to stop doing: habits or practices that waste time or hurt results, e.g. ["Merging without code review", "Status meetings with no agenda"]. 0–8 short phrases of about 3–8 words; long ones wrap to 3 lines. Default [].
max 8 items · default []

            
startstring[]What to start doing: new practices worth trying, e.g. ["Pair on risky stories", "Demo to support every sprint"]. 0–8 short phrases. Default [].
max 8 items · default []

            
continuestring[]What to keep doing: what works and should carry on, e.g. ["Daily stand-up at 9:30", "Blameless incident reviews"]. 0–8 short phrases. Always the last column. Default [].
max 8 items · default []

            
labelsobjectOptional column names in place of the standard Stop, Start and Continue, e.g. { "continue": "Keep doing" }. An empty or missing name shows the standard one. Up to 30 characters; 1–3 words read best.

            
conclusionstringOptional one-line takeaway or list of agreed actions shown in a muted band under the columns, e.g. "Actions: Sam sets up review rules by Friday; Priya books the support demo". Wraps to 2 lines. Omit for none.
max 200 chars

            
orderstringColumn order: "stop-start-continue" (default) or "start-stop-continue". Continue is always last. Match the order the user writes.
"stop-start-continue", "start-stop-continue" · default "stop-start-continue"

            
colorsobjectOptional colour overrides per column, as hex, e.g. { "stop": "#b91c1c" }. Each colours that column's stripe, marker, bullet dots and tint. Default: red, emerald and sky (or the brand palette).

          

      

      

        
labels

        

            
FieldTypeDescription

            
stopstringName of the Stop column, e.g. "Stop doing". Default "Stop".
max 30 chars

            
startstringName of the Start column, e.g. "Start doing". Default "Start".
max 30 chars

            
continuestringName of the Continue column, e.g. "Keep doing". Default "Continue".
max 30 chars

          

      

      

        
colors

        

            
FieldTypeDescription

            
stopstringStop colour, e.g. "#ef4444".
max 40 chars

            
startstringStart colour, e.g. "#10b981".
max 40 chars

            
continuestringContinue colour, e.g. "#0ea5e9".
max 40 chars

          

      

      

        
Endpoints

        
    
          
  • POST /api/render/stopstartcontinue returns image/png; add ?format=svg for SVG.
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  • GET /stopstartcontinue.png?d=<payload> and /stopstartcontinue.svg?d=<payload> render a chart from a link. The payload is the JSON body, raw-deflated and base64url-encoded. Nothing is stored: links are permanent and cached for a year.
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  • /stopstartcontinue#d=<payload> opens the same chart in the builder for editing.
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  • GET /api/render/stopstartcontinue?demo=1 returns the demo chart.
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  • GET /api/schema/stopstartcontinue returns the JSON Schema, for code generators and AIs.
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Errors and adjustments

        
Input is lenient where the intent is clear: numeric strings become numbers, out-of-range values are clamped, and unknown fields are ignored. Adjustments are listed in the X-Render-Warnings header. Anything unclear returns a 400 that says how to fix it:

        
{
  "error": "Invalid payload",
  "issues": [{ "path": "tasks", "message": "must be an array" }],
  "example": { … }
}

      

      

        
Calling from an AI assistant?

        
Use the hosted MCP server instead. It gives Claude, Cursor and other MCP clients a create_stop_start_continue tool that returns the image plus image, SVG and edit links. See the MCP page →