Live on Robinhood Chain · 4663

Intelligence,
guided.

Give your agents the tools to act.
And the boundaries to act within.

Open dashboard Install the plugin

$FLETCH · CA0x6ff822282c9c60bfa5940ebea73658a30dfe0a830x6ff822…fe0a83

Explore the toolchain Skip intro

RIGHT WHERE YOUR
AGENT ALREADY WORKSCodex✳Claude CodeCursorAgent Plugins

01 / KNOWLEDGE → EXECUTION

The model thinks.
Fletch gives it direction.

From the first tool call to an executed transaction. One connected system for chain knowledge, simulation, and permissions.

Chain knowledge. In every call.

Verified ABIs, fork simulations, decoded reverts, and Nitro rules. Your agent calls them directly instead of guessing constants.

// 12 development tools

rhc_simulate({ bundle })

↳ status: "success" · gas 184,220 · L1 share 31%

↳ receipt: 0xa91c…64de · block 57,912,406

Autonomy. On your terms.

You set the budget, routes, and expiry. Your agent works within them. Your funds never leave your wallet.

Portfolio OperatorCodex · session active · Uniswap v3 route

1,740 / 3,000 USDGRemaining allowance · expires Oct 5

Seventeen tools. Structured JSON in, a short summary out.

Tools appear by permission. A session sees only its routes.

rhc_networkChain params, sequencer status, finality laglocal

rhc_contractVerified ABI and source, calldata decodecache

rhc_simulateBundle on a fork: state diff, gas, call tracecloud

rhc_revertDecoded reverts, custom errors, nested callscloud

rhc_assetsStock-token registry and session statuscache

rhc_calendarNYSE sessions, settlement, corporate actionscache

rhc_lintNitro and stock-token rules FH001–FH008local

rhc_gasL2 execution vs L1 blob cost breakdowncloud

rhc_docsVersioned RHC, Nitro, and precompile docscloud

rhc_scaffoldERC-20, v4 hook, stock vault, oracle adapterlocal

rhc_verifyBuild artifacts and verify on Blockscoutcloud

rhc_receiptSigned simulation receiptcloud

rhc_sessionRoutes, remaining budget, expiryfree

rhc_quoteQuote a route without a signaturefree

rhc_executeExecute inside the approved budget0.1%

rhc_requestAsk the owner for budget or a routefree

rhc_routePublish a typed route to the registryfree

FH001block.number used as an L2 counterFH002Ordering through priority feesFH003Cached stock-token supply across splitsFH004Unhandled compliance-module revertFH005Oracle pricing outside the trading sessionFH006msg.sender checks under L1 aliasingFH007Gas budget without the L1 blob shareFH008Deadlines sized for 12-second blocksFH001block.number used as an L2 counterFH002Ordering through priority feesFH003Cached stock-token supply across splitsFH004Unhandled compliance-module revertFH005Oracle pricing outside the trading sessionFH006msg.sender checks under L1 aliasingFH007Gas budget without the L1 blob shareFH008Deadlines sized for 12-second blocks

02 / FOUR WALLS

Trust the intelligence.
Verify the execution.

01 ──────

Amount

approve(executor, limit) on the token. Every call stays inside the allowance you signed.

02 ──────

Route

Contract, function, input token, output set, and a recipient pinned to you.

03 ──────

Receipt

A fresh FletchAttestations record for this exact bundle, whenever the rules require it.

04 ──────

Calendar

NYSE sessions, corporate actions, and transfer restrictions are checked before the call.

TYPED REFUSALS

{
  "code": "NO_RECEIPT",
  "error": "250 USDG is above the 100 USDG threshold and no fresh receipt exists",
  "remedy": "run the bundle through rhc_simulate and publish a receipt"
}

A refused call never reaches the chain and is never billed. Reads and quotes stay free.

STOP AT ANY LEVEL

Lower or remove the budgetTakes effect on the next call.
Rotate the session keyThe agent drops mid-task. Budgets stay.
Revoke the sessionEvery route and budget is gone at once.
approve(executor, 0) from your walletWorks even if Fletch Cloud is down.

Fletch never holds your funds. Your agent never sees your key. Every call is checked by the chain before it runs.

A simulation receipt is the precondition for execution. An agent cannot send a transaction it did not run first.

03 / START WITH THE TOOLS

Find your direction.

MIT-licensed open core. Your own RPC and Foundry in local mode. Cloud compute, metered in quill, when you need archive reads, forks, and traces.

Open your dashboard Release notes on X

fletch / quickstart

$ $

04 / $FLETCH

One token.
Two layers of utility.

$FLETCH pays for cloud compute, secures registry publishing, and ties product usage to hourly buybacks and burns.

2,000

quill per month

Free cloud compute, no card

−25%

on cloud compute

When paying in $FLETCH

0.1%

execution fee

Reads and quotes stay free

70%

of execution fees

Bought back and burned hourly

$FLETCH · CA0x6ff822282c9c60bfa5940ebea73658a30dfe0a830x6ff822…fe0a83

1,000,000,000 fixed supplyFair launch on Pons · no team allocation25,000 $FLETCH stake to publish a route Burn address 0x0000…dEaD Launch on Pons

Give your agent
direction.

Connect the wallet that owns your sessions. Budgets, routes, and receipts are live in under a minute.

Follow @FletchHarness

Keys stay in your wallet Receipts on FletchAttestations Revoke with approve(executor, 0)

Intelligence,guided.

The model thinks.Fletch gives it direction.