GET /launches

Launches: newest first, or with after, everything since that block, oldest first (for polling).

GET https://marketmayhem.co/api/v1/launches

Parameters

Name	In	Required	Meaning
after	query		The next from the previous answer
limit	query		Default 50

Response

Field	Type	Required	Meaning
launches	object[]	yes
launches[].token	string	yes	The token
launches[].symbol	string	yes
launches[].name	string	yes
launches[].creator	string	yes	The wallet that launched it
launches[].pool	string	yes	Its PancakeSwap V3 pool
launches[].pair	string	yes	The pair currency
launches[].feeTier	integer	yes	The pool fee tier (10000 = 1%)
launches[].image	string or null	yes	Its logo, or null
launches[].launchedAt	string	yes	When, ISO 8601
launches[].tx	string	yes	The launch transaction
launches[].block	integer	yes	The block it launched in
next	integer or null	yes	Send as after next time to get only newer launches

A real response

Captured from BSC testnet, exactly as the API sent it (long calldata shortened).

{
  "launches": [
    {
      "token": "0x78b1fa87f01d36dfa2fd3efddf354cdba2605d37",
      "symbol": "SF41030",
      "name": "Sign Flow",
      "creator": "0x2bf842241129be12f3a0e4f21e25d2fd43d9e6da",
      "pool": "0x7d94abd136889ffb9f652fa9faf24ed3a6b90c58",
      "pair": "0xae13d989dac2f0debff460ac112a837c89baa7cd",
      "feeTier": 10000,
      "image": "https://marketmayhem.co/media/images/959f9e200b62da6e92fbe58a9e2c099f515002fd5d1a490bd523c9702fb06764.png",
      "launchedAt": "2026-09-26T08:44:10+00:00",
      "tx": "0x4b012b9493b58c08075e68d67f2dee48bea508343c23ee5175bd043e78d3fa67",
      "block": 133256261
    },
    {
      "token": "0x566dfd7b37502eb3ef07e4e2b4561b0ae52ffdff",
      "symbol": "SFLOW",
      "name": "Sign Flow",
      "creator": "0x2bf842241129be12f3a0e4f21e25d2fd43d9e6da",
      "pool": "0xac2a0b3bf1dcda2aacfd3887f7e8138415aa5d6f",
      "pair": "0xae13d989dac2f0debff460ac112a837c89baa7cd",
      "feeTier": 10000,
      "image": "https://marketmayhem.co/media/images/959f9e200b62da6e92fbe58a9e2c099f515002fd5d1a490bd523c9702fb06764.png",
      "launchedAt": "2026-09-26T08:37:56+00:00",
      "tx": "0x37b824b94daf64a7cd8efbc58c0c0d2b8ad8b0ded1050eed41a3ce33ceea5b91",
      "block": 133255431
    }
  ],
  "next": 133256261
}

Errors

Every error is { "error": { "code", "message", "fix"? } }. This endpoint can answer:

• INVALID_CURSOR: after must be a block number.