Monitoring · x402 · early usage

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

by agent.pocket.network · discovered, not yet claimed by its owner · updated 2026-10-13

30d calls62

30d payers2

MethodPOST

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

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.

Tags: documents · pretty-charts · rest · bazaar

Call contract

Method: POST
Input: json
Output: json
Last paid call: 2026-10-13

Input example from Bazaar metadata

{
  "chart": {
    "tooltip": false,
    "type": "bar",
    "x": "a",
    "y": "b"
  },
  "data": {
    "values": [
      {
        "a": "A",
        "b": 1
      }
    ]
  }
}

Output example

{
  "data": {
    "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\">…</svg>",
    "marks": 2,
    "render_ms": 41,
    "rows": 2,
    "service": "pretty-charts",
    "tooltips": true,
    "warnings": [],
    "width": 480
  },
  "portal": {
    "provenance": "third-party-supplier",
    "schemaCheck": "passed",
    "serviceId": "pretty-charts"
  }
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/32729.json for the price and payment options.
Pay. Call GET https://agent.pocket.network/v1/pretty-charts. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.005 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base
Demand: 62 calls · 2 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.005	0xF732ea490c5766071785a2310523f7fA2CEbB829	60s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xF732ea490c5766071785a2310523f7fA2CEbB829",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "amountUsd": 0.005,
    "maxTimeoutSeconds": 60
  }
]

Schemas

Output schema (JSON Schema)

{
  "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` — 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\">…</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": {
              "enum": [
                "passed",
                "undeclared",
                "unchecked"
              ]
            },
            "serviceId": {
              "const": "pretty-charts"
            }
          },
          "required": [
            "provenance",
            "serviceId",
            "schemaCheck"
          ],
          "type": "object"
        }
      },
      "required": [
        "portal",
        "data"
      ],
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {
    "data": {
      "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\">…</svg>",
      "marks": 2,
      "render_ms": 41,
      "rows": 2,
      "service": "pretty-charts",
      "tooltips": true,
      "warnings": [],
      "width": 480
    },
    "portal": {
      "provenance": null,
      "schemaCheck": "passed",
      "serviceId": null
    }
  },
  "type": "string"
}

Examples

curl

curl "https://agent.pocket.network/v1/pretty-charts"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://agent.pocket.network/v1/pretty-charts");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://agent.pocket.network/v1/pretty-charts")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: agent.pocket.network
Endpoint: https://agent.pocket.network/v1/pretty-charts
Machine-readable: /resources/32729.json