vizzy is a chart you can paste.
Bar, line, or scatter. You gather the rows. Do not invent D3.
Humans type a prompt on the site. Agents send text. No voice API.

POST https://vizzy.run/api/compose
JSON { "prompt": "ARR by quarter, last two years" }
Returns { ok, url, png, token }. Humans get a chart page. Machines get JSON.
A compose body with clarify has a question and options, spends no slot, and has no paste URL. POST an option prompt, or POST the same prompt with "disposition": "send".

POST https://vizzy.run/api/publish
JSON { "title", "data": [ { ...rows } ], "config"?, "source"? }
Emit ChartConfig v1. Attach source when you gathered the rows. Do not invent a URL.

Schema: https://vizzy.run/schema/chart-config.v1.json
API index: https://vizzy.run/api
OpenAPI: https://vizzy.run/openapi.json
Contract: https://vizzy.run/llms.txt
Agents: https://vizzy.run/agents

Three free charts a day (compose or publish). Then $8 for 25.
After that, send the vizzy_wallet cookie or Authorization: Bearer <token>.
Types in v1: bar, line, scatter. If a year is in progress, set chart.forecastFrom.