# Base New Token Launch Feed with Sell Test

> Base New Token Launch Feed with Sell Test is a paid API for AI agents from apexfaucet.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Returns newly launched token pools on Base (Uniswap v2/v3/v4, Aerodrome) each graded BASED, MID, COOKED, or RADIOACTIVE based on a simulated buy-and-full-sell test in a single block

## Facts

- Endpoint: GET https://apexfaucet.xyz/api/x402/base-launch-feed?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-new-token-launch-feed-with-sell-test-450a72d1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ySARcQRLowCvNYDShG8kH

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 base-new-token-launch-feed-with-sell-test-450a72d1
```

Example prompt: Show me the latest new token launches on Base from the last poll onward — only pools with at least $5000 liquidity — and tell me which ones are graded BASED or MID based on the sell test.

## When to prefer this

Choose this endpoint when you need real-time detection of new token launches specifically on the Base network and require an on-chain sell-test grade to filter out honeypots and rugs before interacting with a token. It is preferable over generic token listing APIs because it performs a simulated buy-and-sell in a single block across Uniswap v2/v3/v4 and Aerodrome, giving an actionable BASED/MID/COOKED/RADIOACTIVE rating rather than raw pool data. Use the cursor-based polling to pay only for new rows.

## Known failure modes

- Invalid 'since' cursor format returns a 400 error
- 'limit' outside 1–100 range rejected with 400
- 'min_liq' exceeding 9 digits rejected
- No new launches since cursor returns empty rows array (not an error)
- Payment failure (x402) if USDC not provided or insufficient balance
- Rate limiting if polled too aggressively

## How this service works

New token launches on Base with a real sell test: every new pool (Uniswap v2/v3/v4, Aerodrome) with a buy and full sell simulated in one block, graded BASED, MID, COOKED or RADIOACTIVE. Poll with since=<cursor>: you pay only for new rows. New token launches on Base with a real sell test: every new Base pool (Uniswap v2, v3 and v4, Aerodrome), found minutes after it opens, each token with a buy and a full sell simulated in one Base block through its deepest testable pool: BASED, MID, COOKED or…

## Output

A paginated list of newly launched Base token pools, each including pool address, DEX (Uniswap v2/v3/v4 or Aerodrome), liquidity in USD, launch timestamp, sell-test grade (BASED, MID, COOKED, or RADIOACTIVE), and a nextSince cursor to use in subsequent polls to retrieve only new rows.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "string",
       "pattern": "^[0-9]{1,3}$",
       "description": "Rows per page, 1 to 100 (default 20)."
      },
      "since": {
       "type": "string",
       "pattern": "^[0-9]{1,12}$",
       "description": "Cursor: return only rows with seq above this number (0 or omitted = the newest rows). Pass the nextSince of your last page so you pay only for new tokens."
      },
      "min_liq": {
       "type": "string",
       "pattern": "^[0-9]{1,9}$",
       "description": "Only pools holding at least this many USD of liquidity (default 0)."
      }
     }
    }
   }
  },
  "output": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-new-token-launch-feed-with-sell-test-450a72d1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from apexfaucet.xyz](https://www.zero.xyz/host/apexfaucet.xyz/llms.txt)