// command the timeline

Write X content with AI that knows your business and your voice.

Give Legate your product information, campaign brief and best posts from each account. It uses that context to draft your next campaign in each account's writing style, with your team controlling what goes live.

no card to start · works on your phone · see pricing

live demoEdit a post, drag a card to another account, or open Kanban, Timeline or Canvas from the rail.Edit a post, add a card, or switch to Kanban, Timeline or Canvas. Sample data, and nothing leaves your browser.

⠿

@arclineproduct - plain, numbers first, no hype

1 idea1 drafted2 approved1 flagged

Arcline@arcline

Arcline 2.0 is live. Swaps route across 11 venues and settle in one signature. Fees drop to 0.08% on every pair from today.

Fee per pair before and after Arcline 2.0

123/280

Arcline@arcline

Most teams lose the week to switching between accounts. Here is how we run four of them from one board.

103/280

Comments

Cut "most teams", we cannot back it. Open on the four accounts.

Guest

Arcline@arcline1/4

What changed in 2.0, in four posts.

35/280

Arcline@arcline2/4

Routing moved on-chain, so a swap finds its venues and settles in the same signature.

85/280

Arcline@arcline3/4

Fees are 0.08% on every pair. One number, no tiers.

51/280

Arcline@arcline4/4

Failed fills fell 40% in the canary week. The full numbers are on the blog.

75/280

Arcline@arcline

Fees are 0.08% on every pair. No tiers, no volume games, no rebate to chase.

76/280

Arcline@arcline

Fee comparison across the eleven venues.

40/280

⠿

@arcline_devengineering - dry, specific, code first

1 idea1 drafted1 approved1 posted

Arcline Engineering@arcline_dev1/6

Router v2 ships today. Route selection moved on-chain, 40% fewer failed fills in the canary week. Full write-up in the thread.

126/280

Arcline Engineering@arcline_dev2/6

Before: routing ran off-chain and settled per venue. A swap could fill on one venue and fail on the next.

105/280

Arcline Engineering@arcline_dev3/6

After: one route, chosen on-chain, settled in one signature.

60/280

Arcline Engineering@arcline_dev4/6

Canary week: 18,400 swaps, failed fills down 40%, p95 settle time from 2.1s to 0.9s.

84/280

Arcline Engineering@arcline_dev5/6

What stays the same: the venue list and the quote API. Nothing changes for integrators.

87/280

Arcline Engineering@arcline_dev6/6

The write-up, with the diffs, is on the engineering blog.

57/280

article

Postmortem: the 3 September stall

What broke, what we changed, and the guardrail that would have caught it a day earlier. At 14:02 the quote cache stopped refreshing and every route fell back to a single venue. Fills held, prices did not.

Open editor →

Arcline Engineering@arcline_dev

Canary week, measured: failed fills down 40%, p95 settle time from 2.1s to 0.9s, across 18,400 swaps.

101/280

article

SDK docs walkthrough

The three calls everyone gets wrong.

Open editor →

⠿

@jona_shipsfounder - first person, short lines

2 idea1 drafted1 approved

Jona@jona_ships

Four accounts, one board, no group chat. Launch week starts tomorrow and every post already sits on the board.

110/280

Jona@jona_ships

What I would tell myself before the last launch: write the posts first, then build the page.

92/280

Jona@jona_ships

Why we killed the newsletter and moved the whole cadence to X.

62/280

Jona@jona_ships

Hiring post for the second engineer.

36/280

⠿

Notescampaign notes - no account

1 idea

note

Launch day, Tue 8 Sep

Fees post at 14:30, thread at 16:00
Jona replies to the first hour of quotes
No price talk anywhere

how the week runs

Research, draft, review, publish. Four jobs, one place.

The board above is where drafts live. Each job around it has its own view; pick one to try it.

Track the creators you compete with. Legate scores every post against that account's own baseline and builds the week's brief from what moved.

try it Pick a creator, sort by views, swipe a post into the swipe file.

@arclineyouyour baseline 34 likes (median of 9 posts)

Arcline@arcline· 5d

Fees are 0.08% on every pair in the beta. No tiers, no rebate to chase.

61 9𝕏

1.8x 17 8.4K

Arcline@arcline· 3d

Fee per pair today, and from Tuesday. One number, every pair.

44 7𝕏

1.3x 12 6.9K

Arcline@arcline· 17h

Arcline 2.0 ships tomorrow. One signature for every swap.

34 6𝕏

1x 9 5.2K

Arcline@arcline· 26d

Arcline settles in one signature. That is the whole feature.

27 2𝕏

0.8x 5 3.7K

Arcline@arcline· 5 Aug 2026

New: the fee shows before you sign, to the cent.

22 1𝕏

0.6x 3 2.9K

Arcline@arcline· 12d

Swaps now route across 11 venues. One quote, one signature.

48 5𝕏

1.4x 13 6.2K

Arcline@arcline· 19d

Failed fills fell 40% in the canary week. The numbers are on the blog.

39 4𝕏

1.1x 10 5.0K

Arcline@arcline· 16d

Route previews show every venue a swap touches before you sign.

31 3𝕏

0.9x 6 4.1K

Arcline@arcline· 9d

Quotes now refresh every block, not every third one.

25 2𝕏

0.7x 4 3.4K

pricing

Start free. Pay when you publish.

Free runs on your own AI key. Paid plans add publishing and research through the X API, with AI credits included or on your own key.

A key Legate manages, credits that reset monthly, nothing to configure.

free

$0 / month

For one person, on their own AI key.

2 X accounts on the board, each drafted in its own voice
Unlimited campaign boards
Voice guides, canvas and share links for review
AI drafting on your own provider key
500 MB of media storage, videos up to 50 MB
2 seats

propublish to X

$19 / month

For a small team running its own accounts.

Everything in Free
4 X accounts on the board
Unlimited campaign boards
Publish and schedule to X: threads, images, GIFs and video, quotes of your own posts, the calendar queue
Evergreen slots: recurring posts per account, filled two weeks ahead from an approved library
Research through the X API: track up to 6 creators, scored against their own baseline, with the morning digest and weekly snapshots
AI drafting on a managed key: 5,000 AI credits a month, nothing to configure
4,500 X credits a month, about 225 posts published; top up any time
10 GB of media storage, videos up to 200 MB
5 seats with owner, admin, editor, approver and viewer roles

team

$49 / month

For agencies and larger teams.

Everything in Pro
10 X accounts on the board
Unlimited campaign boards
Track up to 20 creators
14,000 X credits and 20,000 AI credits a month
50 GB of media storage
Unlimited seats

Paid plans top up X or AI credits any time. Purchased credits never expire.

prices in US dollars · tax added at checkout · cancel any time from Billing

Start with the accounts you already run.

Research, draft, review, publish. Four jobs, one place.

The board above is where drafts live. Each job around it has its own view; pick one to try it.

Track the creators you compete with. Legate scores every post against that account's own baseline and builds the week's brief from what moved.

try it Pick a creator, sort by views, swipe a post into the swipe file.

@arclineyouyour baseline 34 likes (median of 9 posts)

Arcline@arcline· 5d

Fees are 0.08% on every pair in the beta. No tiers, no rebate to chase.

61 9𝕏

1.8x 17 8.4K

Arcline@arcline· 3d

Fee per pair today, and from Tuesday. One number, every pair.

44 7𝕏

1.3x 12 6.9K

Arcline@arcline· 17h

Arcline 2.0 ships tomorrow. One signature for every swap.

34 6𝕏

1x 9 5.2K

Arcline@arcline· 26d

Arcline settles in one signature. That is the whole feature.

27 2𝕏

0.8x 5 3.7K

Arcline@arcline· 5 Aug 2026

New: the fee shows before you sign, to the cent.

22 1𝕏

0.6x 3 2.9K

Arcline@arcline· 12d

Swaps now route across 11 venues. One quote, one signature.

48 5𝕏

1.4x 13 6.2K

Arcline@arcline· 19d

Failed fills fell 40% in the canary week. The numbers are on the blog.

39 4𝕏

1.1x 10 5.0K

Arcline@arcline· 16d

Route previews show every venue a swap touches before you sign.

31 3𝕏

0.9x 6 4.1K

Arcline@arcline· 9d

Quotes now refresh every block, not every third one.

25 2𝕏

0.7x 4 3.4K

Start free. Pay when you publish.

Free runs on your own AI key. Paid plans add publishing and research through the X API, with AI credits included or on your own key.

A key Legate manages, credits that reset monthly, nothing to configure.

free

$0 / month

For one person, on their own AI key.

2 X accounts on the board, each drafted in its own voice
Unlimited campaign boards
Voice guides, canvas and share links for review
AI drafting on your own provider key
500 MB of media storage, videos up to 50 MB
2 seats

propublish to X

$19 / month

For a small team running its own accounts.

Everything in Free
4 X accounts on the board
Unlimited campaign boards
Publish and schedule to X: threads, images, GIFs and video, quotes of your own posts, the calendar queue
Evergreen slots: recurring posts per account, filled two weeks ahead from an approved library
Research through the X API: track up to 6 creators, scored against their own baseline, with the morning digest and weekly snapshots
AI drafting on a managed key: 5,000 AI credits a month, nothing to configure
4,500 X credits a month, about 225 posts published; top up any time
10 GB of media storage, videos up to 200 MB
5 seats with owner, admin, editor, approver and viewer roles

team

$49 / month

For agencies and larger teams.

Everything in Pro
10 X accounts on the board
Unlimited campaign boards
Track up to 20 creators
14,000 X credits and 20,000 AI credits a month
50 GB of media storage
Unlimited seats

Paid plans top up X or AI credits any time. Purchased credits never expire.

prices in US dollars · tax added at checkout · cancel any time from Billing

Write X content with AI that knows your business and your voice.

launch-week

Postmortem: the 3 September stall

SDK docs walkthrough

Research, draft, review, publish. Four jobs, one place.

launch-week

Start free. Pay when you publish.

Start with the accounts you already run.

Write X content with AI that knows your business and your voice.

launch-week

Postmortem: the 3 September stall

SDK docs walkthrough

Research, draft, review, publish. Four jobs, one place.

launch-week

Start free. Pay when you publish.

Start with the accounts you already run.