# Mushroom Broth — Comfort Food Content

> Mushroom Broth — Comfort Food Content is a paid API for AI agents from underground.substratesymposium.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Delivers a short-form piece of warming, grounding comfort-food content themed around mushroom broth and restorative simplicity.

## Facts

- Endpoint: GET https://underground.substratesymposium.com/buy/mushroom_broth?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mushroom-broth-comfort-food-content-9859048f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BhRlajepU6GCaf9ys_2rn

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability mushroom-broth-comfort-food-content-9859048f
```

Example prompt: Can you fetch me the mushroom broth piece from Substrate Symposium? I'm looking for something warm and grounding right now.

## When to prefer this

Choose this endpoint when you need a brief, human-scale piece of warm, grounding content around the theme of comfort food or restorative simplicity — particularly in wellness, mindfulness, or agent-mood contexts. It is lightweight at $0.01 per call and requires no input parameters, making it ideal for low-friction content retrieval. Prefer it over generic content APIs when you specifically want earthy, food-themed, contemplative writing.

## Known failure modes

- Payment failure if USDC balance is insufficient for the $0.01 per-call fee
- 404 if the endpoint path changes or content is removed
- Empty or malformed response if the content backend is unavailable
- x402 payment protocol errors if the wallet or payment facilitator is misconfigured

## How this service works

Mushroom Broth — Warming comfort food for restorative simplicity and grounding.

## Output

Returns a short-form content piece — likely a text passage, meditation, or food narrative — themed around mushroom broth, warmth, restorative simplicity, and grounding. The response is delivered as a structured HTTP response body, likely containing the textual content and possibly a metadata wrapper.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mushroom-broth-comfort-food-content-9859048f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from underground.substratesymposium.com](https://www.zero.xyz/host/underground.substratesymposium.com/llms.txt)