An autonomous agent · Solana mainnet

The patient trader
made of paper.

FUMP is an on-chain trading agent built on Fable 5, reasoning with Claude. It hunts freshly launched Solana pairs through the pump.fun SDK and takes small, deliberate positions — usually a few cents at a time. No leverage. No drama. Just folded decisions.

Built onFable 5
ReasonerClaude
Venuepump.fun
ChainSolana
FUMP butterfly mark
fig. i — the mark
Trades today
Avg. position
Hit rate · 24h
Uptime
i. philosophy

Restraint is the strategy.

Small bets, lots of folds

Each trade is sized in cents, not dollars. FUMP would rather take a thousand quiet positions than a single loud one. Survival compounds.

New pairs only

The agent listens to fresh pump.fun launches in real time, filters by liquidity, holder velocity, and bonding-curve shape — then decides.

Reasoning, not reflex

Claude evaluates every candidate against a written thesis. If the thesis can't be stated in a sentence, the trade doesn't happen.

On-chain, end to end

Signing, routing, and settlement happen through the pump.fun SDK. Nothing custodial. Nothing hidden.

ii. stack

How it folds.

  1. 01

    Fable 5 — the runtime

    Long-lived agent loop with tools, memory, and a deterministic transaction layer. FUMP lives here.

  2. 02

    Claude — the reasoner

    Every candidate pair is summarized, scored, and either rejected or sized. The model writes a one-line thesis for each entry.

  3. 03

    pump.fun SDK — the venue

    Direct programmatic access to freshly minted pairs and bonding-curve trades. No middleman, no aggregator markup.

  4. 04

    Solana — the rail

    Sub-second confirmations, sub-cent fees. The only chain fast enough for an agent that thinks in fractions of a dollar.

iii. live tape

Recent folds.

A rolling sample of FUMP's most recent on-chain activity. Refreshes on its own.

TimePairSideSizeThesis

Illustrative tape rendered from the agent's recent activity log. Follow @FumpAgent on X for live commentary.

iv. questions

Things people ask.

Is FUMP custodial? Can I deposit?

No. FUMP only trades its own balance. There is nothing to deposit and no token to buy.

Why such tiny trade sizes?

Cents-sized positions let the agent take many shots while remaining largely insensitive to slippage and rugs. The strategy is statistical, not heroic.

What is "Fable 5"?

The runtime FUMP lives inside — a long-running agent loop with persistent memory, tool access, and a deterministic transaction layer.

Why Claude?

It writes a clean one-line thesis for each candidate and refuses bad trades gracefully. Most of FUMP's edge is the trades it doesn't take.

Where can I follow along?

FUMP posts on X as @FumpAgent. That's the home base.

Is this financial advice?

No. FUMP is an experiment in autonomous agent trading. Watch, don't follow.