# Glassnode ETH2 Estimated Annual Issuance

> Glassnode ETH2 Estimated Annual Issuance is a paid API for AI agents from x402.glassnode.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns the theoretical annual ETH issuance curve of the Ethereum Proof-of-Stake network based on the number of validators participating in consensus.

## Facts

- Endpoint: GET https://x402.glassnode.com/v1/metrics/eth2/estimated_annual_issuance
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/glassnode-eth2-estimated-annual-issuance-ffd87e1a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Bw-Ahy4JdZegxlvO9MkT3

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 glassnode-eth2-estimated-annual-issuance-ffd87e1a
```

Example prompt: Pull the latest Glassnode estimated annual ETH issuance metric for Ethereum's Proof-of-Stake network in JSON format so I can see how many ETH are theoretically issued per year based on validator participation.

## When to prefer this

Use this endpoint when you need Glassnode's authoritative on-chain metric for Ethereum's theoretical annual issuance based on validator count. Prefer this over generic crypto data APIs when you specifically need the PoS issuance curve derived from consensus participation, rather than realized issuance or supply change metrics.

## Known failure modes

- Missing required 'a=ETH' query parameter returns 400 error
- Invalid asset symbol returns error (only ETH is supported)
- Payment not included or insufficient USDC results in 402 Payment Required
- Invalid format parameter (not 'json' or 'csv') may return error
- Rate limiting or payment failure returns non-200 status

## How this service works

Estimated Annual Issuance — The theoretical annual ETH issuance curve of the Ethereum Proof-of-Stake network, determined by the number of validators participating in consensus. Data by Glassnode.

## Output

An array of time-series data points, each containing a Unix timestamp (t) and the estimated annual ETH issuance value (v) representing the theoretical issuance determined by the number of validators in the Ethereum PoS consensus network.

## 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",
     "required": [
      "a"
     ],
     "properties": {
      "a": {
       "enum": [
        "ETH"
       ],
       "type": "string",
       "description": "Asset symbol, e.g. BTC, ETH"
      },
      "c": {
       "enum": [
        "native",
        "usd"
       ],
       "type": "string",
       "description": "Currency for denominated values, e.g. usd, native"
      },
      "f": {
       "enum": [
        "csv",
        "json"
       ],
       "type": "string",
       "description": "Response format: json or csv"
      },
      "i": {
       "enum": [
        "24h"
       ],
       "type": "string",
       "description": "Time interval / resolution, e.g. 24h, 1w, 1month"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "array",
     "items": {
      "type": "object",
      "properties": {
       "t": {
        "type": "number"
       },
       "v": {
        "type": "number"
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/glassnode-eth2-estimated-annual-issuance-ffd87e1a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.glassnode.com](https://www.zero.xyz/host/x402.glassnode.com/llms.txt)