API reference · Launches

New tokens stream

One message per new token as its block is indexed, and another when its first pool opens.

WebSocket channel elysium.tokens.new on wss://api.femtos.xyz/v1/ws · WebSocket channel hyperevm.tokens.new on wss://api.femtos.xyz/v1/ws

Parameters

Param	In	Example or values	Meaning
`include_spam`	filter	`(empty)`, `true`	true: also the rows of spam tokens (flagged `spam`), left out by default
`launchpad`	filter	`(empty)`, `none`, `ascend` (Elysium); `(empty)`, `none`, `liquidlaunch` (HyperEVM)	Launchpad: ascend, liquidlaunch, none (direct deploys), any (launchpad tokens only) or its 0x address
`creator`	filter	(optional)	Creator: 0x address
`event`	filter	`(empty)`, `created`, `pool_opened`	created \| pool_opened

Elysium

{"op":"subscribe","channel":"elysium.tokens.new","filter":{}}

HyperEVM

{"op":"subscribe","channel":"hyperevm.tokens.new","filter":{}}

Key: Authorization: Bearer $FEMTOS_KEY. Get a free key, or with no browser through agent onboarding.

Field	Type	Meaning
`snapshot: true`	TokenNew[]	last 50 tokens at subscribe, oldest first
`data`	TokenNewEvent	the GET /api/tokens/new row + event: created (the token is indexed) or pool_opened (its first pool appeared, also when in the same block), pushed when the indexer commits the block: {seq, address, symbol, name, decimals, totalSupply, createdAt, block, tx, logIndex, creationBasis, creator, …}
`data.event`	created \| pool_opened	token indexed; its first pool opened (also when in the same block)

Launches GET /v1/launches Elysium, HyperEVM
Latest LiquidLaunch bonding-curve launches, newest first.
Launches stream WS elysium.launches · hyperevm.launches Elysium, HyperEVM
One message per new LiquidLaunch launch, the moment its block is indexed.
Launch detail & signals GET /v1/launches/{token} Elysium, HyperEVM
Metrics, dev wallet, early buyers and risk signals of one launch.
Launch holders GET /v1/launches/{token}/holders Elysium, HyperEVM
Every holder of a launched token, tagged dev or early buyer, with concentration.
Launch timeline GET /v1/launches/{token}/timeline Elysium, HyperEVM
The whole life of a launch as ordered events with running state.
New tokens GET /v1/tokens/new Elysium, HyperEVM
Every ERC-20 created on HyperEVM, newest first, with its first pool and market figures.
New pools GET /v1/pools/new Elysium, HyperEVM
Every new pair or pool on HyperEVM, from every discovered factory and PoolManager, newest first.
New pools stream WS elysium.pools.new · hyperevm.pools.new Elysium, HyperEVM
One message per new pool, the moment its block is indexed.
Ascend swaps stream WS ascend.swaps Elysium
Every swap of every Ascend pool, one message per block.
Ascended transitions WS ascend.status Elysium
A message when a launch crosses your thresholds, in the block where it happens.
Lifecycle stage changes WS ascend.lifecycle Elysium
A message when a launched token reaches its next stage: listing desk, HyperEVM mirror, HyperCore spot, perp.