# RGGI CO2 Allowance Auction Results

> RGGI CO2 Allowance Auction Results is a paid API for AI agents from api.tradeenergy-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).

Returns Regional Greenhouse Gas Initiative (RGGI) quarterly CO2 allowance auction results including auction number, date, quantity offered, clearing price, CCR sold, and total proceeds.

## Facts

- Endpoint: GET https://api.tradeenergy-api.workers.dev/api/energy/rggi-carbon-allowance?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rggi-co2-allowance-auction-results-3165cb56
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ekXcaZ5QSFkb96Iwp3PC4

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 rggi-co2-allowance-auction-results-3165cb56
```

Example prompt: What's the clearing price and total proceeds from the most recent RGGI CO2 allowance auction? Show me the last 4 auctions.

## When to prefer this

Use this endpoint when you need official RGGI quarterly CO2 allowance auction data including clearing prices, quantities, CCR sales, and proceeds directly sourced from RGGI's public auction results table. Prefer this over secondary market price feeds when you need verified, settlement-level auction prices rather than spot or futures prices. Ideal for compliance reporting, carbon market research, and policy analysis focused on the northeastern US cap-and-trade program.

## Known failure modes

- RGGI source table unavailable or changed structure — may return stale or empty data
- limit parameter out of range (must be 1–80) — may return default 8 results or error
- Network timeout at the Workers edge — returns 5xx error
- No new auction data yet for current quarter — returns last known results

## How this service works

Regional Greenhouse Gas Initiative (RGGI) CO2 allowance auctions: auction number and date, quantity offered, Cost Containment Reserve sold, quantity sold, clearing price (USD per allowance) and total proceeds, latest first, from RGGI's public auction results table. Quarterly auctions only; secondary-market prices are not included.

## Output

A JSON object containing the auction source URL, check timestamp, unit label (USD per CO2 allowance / 1 short ton), count of returned auctions, the latest auction summary, and an array of auction records each with: auction number, date, quantity offered, quantity sold, CCR sold, clearing price (USD), and total proceeds (USD). Results are sorted latest first.

## 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": [],
     "properties": {
      "limit": {
       "type": "string",
       "description": "Auctions to return, 1 to 80 (default 8)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "unit": "USD per CO2 allowance (1 short ton)",
  "count": 4,
  "latest": {
   "date": "2026-09-09",
   "auction": 73,
   "ccrSold": 1148000,
   "proceedsUsd": 1074449939.55,
   "quantitySold": 28537847,
   "quantityOffered": 27389847,
   "clearingPriceUsd": 37.65
  },
  "source": "https://www.rggi.org/auctions/auction-results/prices-volumes",
  "auctions": [
   {
    "date": "2026-09-09",
    "auction": 73,
    "ccrSold": 1148000,
    "proceedsUsd": 1074449939.55,
    "quantitySold": 28537847,
    "quantityOffered": 27389847,
    "clearingPriceUsd": 37.65
   },
   {
    "date": "2026-06-03",
    "auction": 72,
    "ccrSold": 0,
    "proceedsUsd": 642239465,
    "quantitySold": 18349699,
    "quantityOffered": 18349699,
    "clearingPriceUsd": 35
   }
  ],
  "checkedAt": "2026-10-23T09:38:19.873Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/rggi-co2-allowance-auction-results-3165cb56/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.tradeenergy-api.workers.dev](https://www.zero.xyz/host/api.tradeenergy-api.workers.dev/llms.txt)