# DYOR Crypto Knowledge Graph Change Feed

> DYOR Crypto Knowledge Graph Change Feed is a paid API for AI agents from kg.dyor.network, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Returns real-time change events from the crypto knowledge graph — new token listings, protocol metric updates, investor relationship additions, and governance proposals — filterable by entity, operation type, and time window.

## Facts

- Endpoint: GET https://kg.dyor.network/api/changes
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kg-dyor-network-64194b06
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__fE4cUnLzOLasff8T-Cs1

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 kg-dyor-network-64194b06
```

Example prompt: Show me everything that changed in the DYOR crypto knowledge graph over the last 24 hours — new tokens listed, protocol metric updates, governance proposals created — and give me a summary count by operation type rather than individual records.

## When to prefer this

Use this endpoint when you need to detect recent mutations in the crypto knowledge graph — new listings, metric refreshes, or relationship additions — rather than querying static entity data. Prefer this over the SPARQL or semantic search endpoints when your goal is change detection or event-driven monitoring rather than structured lookup or discovery.

## Known failure modes

- Invalid since_hours value (non-numeric) returns 400
- Unknown entity_uri returns empty changes array
- Payment not included or insufficient returns 402
- Rate limiting may return 429 if called too frequently
- Network timeout if knowledge graph is under high load

## How this service works

Track real-time changes to the crypto knowledge graph — new tokens listed, protocol metrics updated, investor relationships added, governance proposals created. Monitor the pulse of the crypto ecosystem as data flows in from multiple sources daily | ZWING Intelligence (https://zwing.bot) — contact: v@zwing.bot, Telegram: @valery_zzz

## Output

A list of change objects (or aggregate counts if summary=true), each containing the entity URI, the property that changed, the new value, and the operation type (CREATE or UPDATE). Total count included. Covers the specified lookback window (default 72 hours).

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "limit": 5,
   "summary": false,
   "since_hours": 24
  }
 }
}
```

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "integer",
       "default": 100
      },
      "summary": {
       "type": "boolean",
       "default": false,
       "description": "Return aggregate counts instead of individual changes"
      },
      "operation": {
       "enum": [
        "CREATE",
        "UPDATE"
       ],
       "type": "string",
       "description": "Filter by change type"
      },
      "entity_uri": {
       "type": "string",
       "description": "Filter changes for a specific entity URI"
      },
      "since_hours": {
       "type": "number",
       "default": 72,
       "description": "Look back window in hours"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "count": {
       "type": "integer"
      },
      "changes": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "property": {
          "type": "string"
         },
         "new_value": {
          "type": "string"
         },
         "operation": {
          "type": "string"
         },
         "entity_uri": {
          "type": "string"
         }
        }
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kg-dyor-network-64194b06/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kg.dyor.network](https://www.zero.xyz/host/kg.dyor.network/llms.txt)