Renders a chart from inline data (CSV, TSV, JSON or row values) and returns it a

Renders a chart from inline data (CSV, TSV, JSON or row values) and returns it as static SVG, or a complete HTML document, inside a JSON object. POST /v1/chart with either a full Vega-Lite v6 spec or the shorthand form (type, x, y, color, ranges, colors, theme). Every data mark carries a native tooltip, so nothing is scripted. Pay per request in USDC; no account, no API key.

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Endpoint

POST https://agent.pocket.network/v1/pretty-charts

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Example input (from the provider)

{
  "body": {
    "chart": {
      "tooltip": false,
      "type": "bar",
      "x": "a",
      "y": "b"
    },
    "data": {
      "values": [
        {
          "a": "A",
          "b": 1
        }
      ]
    }
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "description": "Exactly one of `spec` or `chart` is required. `data` is required with `chart` and optional with `spec` (a spec may carry inline data.values). Remote data URLs are refused; every input lives in the body.",
          "properties": {
            "chart": {
              "description": "Shorthand that compiles to a single-view Vega-Lite spec. `type` is one of bar, line, area, point, scatter, circle, square, tick, rect, heatmap, arc, pie, donut, boxplot, errorbar, errorband, rule, text, trail; channels (x, y, color, size, shape, theta, ...) take a column name or a field definition; plus xRange, yRange, colors, colorScheme, stack, title, width, height, tooltip.",
              "properties": {
                "color": {},
                "colors": {
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                },
                "height": {
                  "type": "number"
                },
                "title": {},
                "tooltip": {},
                "type": {
                  "type": "string"
                },
                "width": {
                  "type": "number"
                },
                "x": {},
                "xRange": {
                  "type": "array"
                },
                "y": {},
                "yRange": {
                  "type": "array"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            },
            "data": {
              "description": "Inline data; exactly one of csv, tsv, json or values.",
              "properties": {
                "csv": {
                  "description": "CSV text with a header row. Numbers and ISO dates are parsed.",
                  "type": "string"
                },
                "json": {
                  "description": "A JSON array of row objects, as a string.",
                  "type": "string"
                },
                "tsv": {
                  "description": "Tab-separated text with a header row.",
                  "type": "string"
                },
                "values": {
                  "description": "Row objects.",
                  "items": {
                    "type": "object"
                  },
                  "type": "array"
                }
              },
              "type": "object"
            },
            "options": {
              "description": "Render options.",
              "properties": {
                "background": {
                  "type": "string"
                },
                "format": {
                  "default": "svg",
                  "enum": [
                    "svg",
                    "html"
                  ],
                  "type": "string"
                },
                "height": {
                  "type": "number"
                },
                "theme": {
                  "description": "A vega-themes preset",
                  "e.g. dark.": null,
                  "type": "string"
                },
                "title": {
                  "type": "string"
                },
                "tooltips": {
                  "default": true,
                  "type": "boolean"
                },
                "width": {
                  "type": "number"
                }
              },
              "type": "object"
            },
            "spec": {
              "description": "A Vega-Lite v6 spec. Any `url` anywhere in it is refused.",
              "type": "object"
            }
          },
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST",
            "PUT",
            "PATCH"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "data": {
              "description": "For POST /v1/chart, the rendered chart as JSON: `service` (\"pretty-charts\"), `format` (svg or html), `content_type` (image/svg+xml or text/html), `width` and `height` in pixels, `rows` (inline data rows received), `marks` (data marks drawn), `tooltips`, `render_ms`, `warnings` (Vega and Vega-Lite warnings, if any) and `html` \u2014 the SVG element, or a complete HTML document for format html; always the last field. Errors return `{ error: { code, message, details? } }` with a code such as invalid_spec, too_many_rows or render_failed. The other routes (healthz, version, capabilities, openapi.json) return their own small JSON documents.",
              "examples": [
                {
                  "content_type": "image/svg+xml",
                  "format": "svg",
                  "height": 300,
                  "html": "<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"480\" height=\"300\" viewBox=\"0 0 480 300\">\u2026</svg>",
                  "marks": 2,
                  "render_ms": 41,
                  "rows": 2,
                  "service": "pretty-charts",
                  "tooltips": true,
                  "warnings": [],
                  "width": 480
                }
              ],
              "type": "object"
            },
            "portal": {
              "properties": {
                "provenance": {
                  "const": "third-party-supplier"
                },
                "schemaCheck": {
                

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