A coding agent from $5/month that lives in your terminal

Pier reads your repository, plans across files, runs commands, and ships. Built for long coding sessions, without burning through expensive AI subscriptions.

$curl -fsSL https://dl.piercode.com/stable/install.sh | sh

1.3k devs and engineers ship with Pier daily

pier-portfolio

PowerShell

● Edited Desktop\pier-portfolio\src\app\globals.css (+2 -2)

24 </html>

4- --font-sans: var(--font-geist-sans);

5- --font-mono: var(--font-geist-mono);

4+ --font-sans: var(--font-inter);

5+ --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

● Now let's try building again:

❯ You approved Pier to run cd "C:/Users/HelloWorld/Desktop/pier-portfolio"; npx next build 2>&1 this time

● Ran cd "C:/Users/HelloWorld/Desktop/pier-portfolio"; npx next build 2>&1

└ You are using Node.js 18.12.1. For Next.js, Node.js version >= v18.17.0 is required.

◦ Working (3m 28s · esc to interrupt) · ↑ 5,588 tokens

● Updated Plan

✔Create Next.js app in Desktop/pier-portfolio

✔Build the portfolio landing page (identity, capabilities, usage tips)

✔Style it with Tailwind CSS

☐Verify the build works

alt + t to hide tasks

❯ Ask Pier anything… (/ for commands)

qwen3-coder (shift+tab to cycle) · / for commands12.9k tokens63%

Pier - raptorbt

❯ Expose the vectorized fill engine to Python and add a 0.1.4 release build

● I'll add a #[pyfunction] over the Rust fill loop and bump the maturin metadata.

● Ran maturin develop --release

└ 🦀 Building raptorbt v0.1.4 (PyO3 / abi3-py39)

📦 Built wheel for CPython 3.11

✨ Installed raptorbt-0.1.4

● Fill engine callable from Python at ~3.1M ticks/s. Want me to tag v0.1.4?

❯ Ask Pier anything… (/ for commands)

qwen3-coder (shift+tab to cycle) · / for commands8.2k tokens84%

Pier - server

❯ Add a GET /v1/usage endpoint that returns the caller's monthly credit spend

● I'll wire the route into the billing router and reuse the credits ledger query.

● Edited src/routes/usage.rs (+4 -1)

18 let user = ctx.require_user().await?;

19- Ok(Json(json!({ "ok": true })))

19+ let spend = credits::month_to_date(&ctx.db, user.id).await?;

20+ Ok(Json(UsageResponse {

21+ micro_usd: spend.micro_usd,

22+ calls: spend.call_count,

23+ }))

● Ran cargo test usage::

└ test usage::month_to_date_sums_calls ... ok

test result: ok. 1 passed

● Endpoint live and the ledger sum is covered by a test. Ready to commit?

❯ Ask Pier anything… (/ for commands)

pier-hybrid (shift+tab to cycle) · / for commands14.7k tokens71%

Pier - web

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pier v1.4.0

sarvam/sarvam-105B · medium /model

~/Projects/alphabench/web

❯ The pricing page flashes the wrong plan on first paint. Fix it

✳ The plan is set in a useEffect, so SSR paints 'Free' then snaps… (ctrl+t to expand)

● It's seeded on the client. I'll hydrate from the server so the first paint is right.

● Edited app/pricing/plan-toggle.tsx (+1 -1)

14- const [plan, setPlan] = useState("free")

14+ const [plan, setPlan] = useState(initialPlan)

● Ran npm run test -- plan-toggle

└ ✓ resolves the plan on first paint

Tests: 1 passed

● Fixed. No more flash. Want a snapshot test to lock it in?

❯ Ask Pier anything… (/ for commands)

sarvam/sarvam-105B (shift+tab to cycle) · / for commands15.1k tokens91%

To continue this conversation: pier resume b38b84db-9999-9999-9999-75b1fbf4a4f0

One agent, every stack. Works with the languages and tools you already use

Designed for breadth and depth

It holds your whole codebase at once: comprehensive enough to span every file and dependency, disciplined enough to stay in your control.

Project memory

Reads your CLAUDE.md, AGENTS.md, and project conventions, then actually follows them. Not just context, obedience to your rules.

Plan mode

Investigates, designs, and presents a plan before touching a file. Read-only research first, then execution with your approval.

Subagents

Delegates research and scoped work to specialized sub-sessions. An orchestrator, not a single prompt loop.

Skills and hard rules

Project-defined skills, hard constraints, and agent instructions that Pier actually enforces across every file it touches.

Every model, every plan

Pick any model from Sarvam, DeepSeek, GLM, Kimi, Qwen, Codestral, and more on any plan, billed at the provider's API cost from your credits.

Bring your own key, use Pier free

Prefer to run direct? Bring a Sarvam AI or OpenRouter key and Pier calls the provider for you. All you need is a free Pier account, no subscription.

Open source

Pier is open source. Read the code, file issues, and send pull requests on GitHub. Nothing about how the agent works is a black box.

See it on real tasks →What a task costs →Pricing →

Built in Bharat, for the World

Pier means all: wholeness, everything, everyone, everywhere.

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$curl -fsSL https://dl.piercode.com/stable/install.sh | sh

1.3k devs and engineers ship with Pier daily

A coding agent from $5/month that lives in your terminal

Designed for breadth and depth

Project memory

Plan mode

Subagents

Skills and hard rules

Every model, every plan

Bring your own key, use Pier free

Open source

Explore Pier

Use cases

Cost per task

Blog

FAQ

Security

Changelog

GitHub

Built in Bharat, for the World

Begin here