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Feb 25, 20262 weeks ago

5 Crypto Tools You Can Build with Claude Code

R
Ronin@DeRonin_

AI Summary

This article is a compelling blend of practical crypto development guide and a crucial reality check for aspiring builders. It begins with the exciting premise that AI tools like "vibecoding" are becoming powerful enough to let a solo developer create complex applications that once required entire teams. The author, speaking from personal experience of generating significant revenue quickly, outlines a structured framework for building five specific crypto tools, emphasizing the preparatory work of competitor analysis and the importance of focusing on a solid technical core over polished design at the outset. The core of the guide walks through the architectural blueprints for four potent tools: a CEX-DEX arbitrage bot, a prediction markets arbitrage bot, a smart data aggregator for traders, and a sophisticated cold outreach agent. For each, the author doesn't just list features but delves into the critical potential pitfalls and the essential technical modules required, from data collectors and risk filters to delivery layers and security measures. This practical, module-based breakdown is the article's key strength, providing a genuine scaffold for understanding how such tools function under the hood. The promotion strategy for each is refreshingly straightforward: demonstrate real utility and share authentic success cases to build a community. However, the article takes a powerful, unexpected turn in its final section, which replaces a fifth tool idea with a vital dose of perspective. The author directly challenges the "get-rich-quick" mentality, revealing that their own success was built on years of foundational work and warning that sustainable building is a marathon, not a sprint. This honest conclusion reframes the entire piece, transforming it from a simple tutorial into a guide for mindful, long-term creation in the AI era. To fully absorb both the technical frameworks and this essential wisdom, reading the complete article is highly recommended.

Vibecoding, AI agents, first attempts, first failures, first win

feels like 2026 will be the turning point where AI literally becomes an irreplaceable tool

letting us build things that previously required at least 10 devs

solo, with almost no money spent

not counting buying credits in Claude Code

just having a concept and a clear understanding of what you want to build

i've been on fire for a long time to build my own product

and i even generated $17k in 5 days building my first app

but also, while doing research, i highlighted for myself 5 best crypto tools you can build with vibecoding right now

this article won't have ready prompts, or something you can just CTRL-C & CTRL-V

but it will have something more valuable, a framework and structure for each idea

exactly what you need to understand to build a really useful app

let's break down each idea step-by-step

and figure out how to extract maximum efficiency from it

for personal use or for selling

P.S in the end i'll reveal the app where i made $17k in 5 days, building it with $0

READ TILL THE END!!!

First steps to building your own app (or so-called preparation)

personally i always looked for competitors first, to understand whether this idea can really function

this is a must-have if you're not a dev and don't understand many technical experience

then i opened existing live products and went through their docs to understand how each of them works

most of the time it's connecting required APIs, structured usage, returning the data we need or specific filters like spread search for potential arbitrage opportunities

once you understand your competitors and the volume they're doing, the potential revenue you can reach becomes obvious

having zero exposure and building the first thing that came to your mind makes no sense

it's like trading the first memecoin you saw on pump.fun, what's the result???

rekt, disappointment, opinion that the niche doesn't work, even though it does, the approach was just wrong

okay, we analyzed competitors, their technical stack, promotion methods, what's next?

next you need to at least minimally structure everything in Notion or any app that's convenient for you

i also often build dashboards in Figma with everything i need, including the visual part

but honestly, you don't even need it

most products can function as a Telegram or Discord bot, so visuals are no sense at this stage

don't waste time on UI/UX if we're talking about crypto products

the audience is already adapted to bad UI/UX

build a working product first

then you can buy proper UI/UX from a designer after you get your first revenue

our focus: build the solid technical stack that executes your functions efficiently

using APIs and other tools you need, depending on what exactly you're building

personally i'll highlight super clear examples here

you definitely heard about them before

but i haven't seen anyone fully break down the technical concept of how it should work (specific promotion methods from marketing & advising perspective)

let's lock in

1: Arbitrage bot between CEX & DEX

the core idea of this product is searching for situations where the price on CEX and DEX differs so much that after all fees / gas / funding rate / delay risks you still stay in profit

but important clarification, it doesn't work like you just track the price, buy on CEX and sell on DEX

most of the time deposits are closed or there's a long waiting time, and the price equalizes before your deposit arrives

most often this strategy works through hedge

for example: buy on DEX, and on CEX instead of selling spot you short the perp (or vice versa)

you lock the spread, and then deliver the asset / rebalance

usually such products look like a Telegram bot that sends you all similar situations, and you manually analyze them

although it's a pretty heavy product, and inside there are a lot of potential problems

Potential problems when building an arbitrage bot between CEX / DEX:

delays in price updates and desync, which will return incorrect data

fees (maker / taker, funding if you hedge with perps, gas, aggregator fee)

slippage: on DEX depends on volume, on CEX depends on orderbook depth

partial fills on CEX and the need to chase the second leg

CEX limits / API ban if you fetch and place orders too aggressively

Withdrawals / deposits: pauses, delays, compliance, fees

MEV / sandwich: if you expose your swap to the public mempool (only relevant if you're a whale, <$1k no one cares, sometimes even <$100k)

Technical architecture of a CEX-DEX arbitrage bot:

let's be objective, let's look at it as a set of modules, what you need for it to function correctly

and even then, all of this still needs to be tested and you'll have to fix issues that will show up

1. Data collectors (data scraping)

basically, you need to always have real-time data from both sides

the CEX collector should connect to the exchange via API and fetch best bid/ask, orderbook depth, funding rate for perps

the DEX collector should run a simulation: if you swap $X right now, how many tokens you really get

and if the result shows a spread, that's what you need

even a 1-5 sec delay can already play a huge role

2. Brain / opportunity calculator

this module should take the numbers and answer one question

"do we stay in profit after all fees, gas, slippage, and delay risk???"

it needs to calculate the real net edge:

the difference between CEX price and the DEX swap result

minus maker/taker fee on CEX

minus funding rate (if hedge via perps)

minus gas + aggregator fee on DEX

minus expected slippage

minus safety buffer (in case price moves while you execute)

if the edge is small, ignore it, and it's crucial that it's true

almost all "beautiful spreads" disappear when your bot calculates net edge properly

3. Risk filter (double-check)

even if the trade looks profitable, the bot should re-check everything before sending it to you

check gas, CEX limits, and whether the size is too big for the orderbook / pool

4. Telegram delivery layer

you need to set it up so the deal is sent to you in a user-friendly Telegram format, in real time

ideally with direct links to perps and the DEX, so you don't waste time

also checks of all suspicious moments, so the bot does it instantly and shows it in logs

5. Security

it's important to add a Kill Switch function, so the bot shuts down on errors and sends you logs with what went wrong

and most importantly, on your CEX API keys disable everything except read-only data access, turn off Trade and Withdrawals

so even if someone gets access to your API key, they can't do anything with it

and of course test a lot, while you build it via vibecoding, a ton of issues will appear that you'll need to fix

even when experienced devs built this, they still fixed a lot of problems, be ready for it

Methods to promote this product:

most often it's your real cases where you made profit on arbitrage

build your own community, start growing your personal brand, share your trades

people will get interested in the product themselves if it really works

you literally need $0 to promote a good product, trust my experience

all good products i built were built on <$50k budget or even $0

and only when they started doing their first $100K–$1M revenue

that's when liquidity and paid ads budget were actually needed

2: Prediction markets arbitrage bot

the core idea of this product is to find situations where the same event is priced differently across prediction markets

and you can lock profit by buying "YES" where it's cheaper and "NO" where it's mispriced on another platform (or selling YES where it's overpriced)

but important clarification, this is not classic arbitrage where price equalizes instantly

here inefficiency can hang for hours or even days, and the main difficulty is not "finding the spread"

the main difficulty is understanding whether it's truly the same event by resolution rules

and whether you'll be able to exit properly / or be stuck until final settlement

most often this works in 2 formats:

default arbitrage between two markets that resolve on the exact same event (true arb if settlement is identical)

semi-arb where markets are "almost the same" but wording differs (bigger edge, bigger risk)

usually such product looks like a UI/UX dashboard that shows these spreads

or a Telegram bot that sends you all mispricing situations

and you manually decide whether it's a real edge or just maximized conditions

the product is heavy, just like the previous one

and inside there are many places where you can mess up

Potential problems when building a prediction markets arb bot:

same event ≠ same market: wording, resolution criteria, timezone, volume, who resolves and how – this is #1 reason people get rekt

liquidity is often small, you see huge spread but can only deploy $50-$100 before price moves against you

different mechanics: orderbook vs AMM – on some platforms it's depth-based, on others AMM, and price behaves differently

long waiting time – sometimes you need to wait for resolution, price doesn't move, no buy/sell pressure

fees: trading fees, slippage inside the order-book

manipulation and spoofing – fake depth in order-book so you see an edge that doesn't exist and close on you

Technical architecture of a prediction markets arbitrage bot:

objectively, it's similar to the previous bot, but with a couple of very important clarifications

even then, you'll still need heavy testing, reality will break theory

1. Data scraping

you need real-time data for every market you support

depending on the platform this includes:

orderbook: best bid/ask, depth, recent trades

AMM: price simulation

metadata: rules, resolution source, expiration time

2. Event matching layer

the most important module, it must answer, is this really the same event

basically it should:

group markets by themes (politics, crypto, esports, etc.)

find candidates that look like "about the same thing"

assign confidence score

deeply compare metadata and catch tricky resolution wording

3. Brain / opportunity calculator

this module calculates real profit after all fees and realistic fills

because prediction markets often show painted orderbooks with low real liquidity

it must calculate net edge:

effective entry price for $X size on market A (after slippage / depth)

effective entry price for $X size on market B

fees + gas + bridge (if needed)

best structure: buy YES here + buy NO there, or sell where overpriced

max size you can realistically deploy without killing the edge

4. Risk filter (double-check)

the most important thing here is max size and settlement risk flags

i've heard many cases where resolution went against reality just because of ambiguous wording

and of course evaluate time expiry, so you don't lock liquidity in one trade too long

interesting approach, sell before resolution if you see price moving in your favor on one of the markets

5. Telegram delivery layer

same as previous, don't build UI/UX at start, just make it a Telegram bot

bot should send:

event name + links to both markets

YES/NO prices on both platforms

net edge after fees

max safe size based on orderbook depth

warnings like low liquidity or ambiguous resolution rules

Methods to promote this product:

best promo case is real examples where you made profit using your own bot

screenshots of both platforms, clear explanation of the strategy, your plan and execution

just look at the reach @the_smart_ape got when he announced his bot, you'll understand...

once you build a community around "market inefficiencies", it becomes easy to even sell the product, if it really works

especially with hype around Polymarket and prediction markets cult

compared to many other products, this one should be much easier to push

3: Aggregator scraping data useful for traders & creators & web3 users

the core idea of this product is scraping data that you constantly have to search manually

basic news digests and other raw info, and delivering it in a clean format into Telegram or a proper UI/UX dashboard

so this is not another news bot, it's an aggregator that brings chaos from all sources into one place

important clarification, scraping is not just parsing websites

if you just pull HTML and forward text, that's literally nothing

real value, where AI shines, is normalization + extracting what actually matters

Technical architecture of a crypto data aggregator:

the main goal is stability + real value for the user

most often it can be digesting channels if one ticker gets pushed many times

or some important news you need to know on time

many trench traders use scraping bots to see who changed avatar first or edited something

it all depends on the source you care about, use case will be different for everyone

you can apply it based on your imagination and what you personally find useful

scraping data has always been alpha, for example parsing specific data and building a dashboard around it

everyone needs it, and this way you also grow your personal brand on X

1. Source connectors (scrapers + APIs)

you'll need a mix of APIs and web scraping

because some websites don't have APIs

official APIs

RSS / public JSON

web scraping (where no API exists)

each connector must be able to:

fetch data at proper intervals

retry on errors

check if the source is down

have fallback secondary sources

2. Normalization layer (bring everything into one format)

everything must be unified into a format that's convenient for you

especially split by event types like listing, unlock, governance, exploit

this makes tracking much easier, also store source + entity id + other metadata

without this layer, it's not an aggregator, it's just forwarding raw text

3. Anti-spam + clustering layer

you need logic that merges identical events from different sources

so in the end you get one clean update, with all collected details

and if new info appears, update the previous message and send an update in the bot

4. Scoring + filtering layer

this is more personal but extremely important, you can assign importance to each update

for example configure priorities inside your bot, based on what you currently trade or focus on

if you're trading new listings or low-liquidity pairs, set them as priority

create simple scoring per update: high / medium / low

scoring can adapt algorithmically based on previous score, add your own manual rating to each update, and fine-tune priority over time

5. Storage + delivery layer

you need clear history + fast search via hashtags or convenient UI/UX

without a proper database, you won't be able to evaluate updates and filter personal preferences

delivery layer should be user-friendly, this is the product where UI/UX actually matters

commands, filters, fast links to original source, short summaries

Methods to promote this product:

best move is to build a dashboard that's actually useful, for example tracking closed airdrop sites, or specific wallet tracking

all of this is scraping / parsing data

the key is to show that your aggregator filters data properly, share real cases you executed using it

pick a niche and sell alerts for that niche, people always paid for fast scraping of relevant data

private alerts, trader stats from platforms without API, everything fits into this structure

finding the use case is on you

4: Agent built on you for cold DMs and outreach

the core idea of this product is to build an agent that finds the right people and writes them cold DMs as if it's you

important clarification: this is not a spam bot

because mass blasting = account ban, reports, negative reputation

real value is building a personalized agent with proper context and clean targeting

i understand the value myself, as a founder of accelerator @arcane_hq this would save me tons of time and money

because often i hire BDs just to send cold DMs in my tone-of-voice

Potential problems when building a cold DM agent:

spam risk, if messages are generic and without context

bad targeting, if the agent writes to the wrong people

no memory / no state, if the agent doesn't remember who it contacted and who replied

data privacy, since your agent will store full database of cases, clients, scripts

platform restrictions on AI agents, like X did

so right now this idea is realistically for LinkedIn

maybe X will allow AI agents in future, but currently it's restricted

Technical architecture of a cold DM agent:

let's be objective, this seems simple for everyone, no complex math or algorithms

but certain points make this bot heavy to execute

1. "You model" (your style and brain)

everything that makes you "you" must go here, if this foundation is weak, nothing works

you need to feed the agent everything:

your tone-of-voice

your offers (what you sell, for who, what result)

your cases, numbers, proof

forbidden phrases (what never to say)

what to do in uncertain situations

in this way DMs becomes grounded context

2. Targeting (ICP + rules engine)

extremely important to define who you write to

niche, role, geo, stage, partnership potential

and add safety rules:

don't message competitors, clients, toxic categories

don't send more than N per day

don't resend after rejection

3. Lead sourcing (no just scraping)

define the source of potential clients, give it database, community, structured search logic

focus on fewer but more relevant leads

interesting part, even lead sourcing alone can be a sellable product

4. Enrichment (human context)

agent must gather at least 3-5 facts about the person

difference between spam and real DM = context

automate research:

what they worked on

what they recently launched or posted

who they hired

what product / audience they have

this builds trust that you're human (p.s lol ironic when we're building an AI agent)

5. Message generator (DM drafts)

final stage: generate actual messages (generator takes your style + lead context + offer)

and produces 2-3 DM variants

6. Safety / compliance filter

must add module that checks for hallucinated facts

over-aggressive selling

personal data misuse

AI loves to invent things

especially promises, filter this

7. Human-in-the-loop (approve first)

connect minimal UI/UX or Telegram bot

agent sends drafts, you approve, MVP must work this way

so you understand how it behaves, and adjust prompts / filters / sourcing

8. Follow-up engine (most profitable)

90% of money is in follow-ups, not first message

as someone who worked in sales, this is must have

no reply after N days → follow-up #1 → #2 → then stop

each follow-up must add micro-value, not just "ping"

9. CRM + analytics

store who you contacted

what message

status

responses

tags

rejection reasons

and most important test prompts and collect analytics:

reply rate

positive rate

booked calls

ban/risk signals

which intro works

which CTA converts

Methods to promote this product:

best marketing is using it yourself, sales and connecting can be your own work

you can help others find the right people, this system fits any marketing agency

not only web3, agent saves 2+ hours daily, and generates consistent leads

almost like setting up a sales flow for Wall Street brokers back in the day haha

5: you really believed i made $17k in 5 days???

yes, there won't be a 5th idea here

but there will be something way more valuable than what you were hoping for

false expectations are the scariest thing you'll face on your path

it's LITERALLY UNREAL to build an app in 5 days that generates profit

and consider this, if you have 0 technical background, 0 understanding of building, even 6 months will be hard

and you're reading till the end hoping to hear some cheat code just because i'm Ronin?

i'm Ronin because for last 5 years i've been working 12/7/365, sometimes even more

i started learning programming at 12, it was my hobby, i won multiple math olympiads

and even then, trust me, real understanding only started forming recently, and it's STILL hard for me to build apps

this is not simple, even with connections, experience in building, advising, marketing

the desire for fast money is one of the biggest problems of this generation

and those who don't get rid of it will earn less in the long run, than those who moved slower but consistently

what do you feel when you fail after 5 days? disappointment?

most successful founders launched their real businesses at 30-40

most of my audience isn't even 25 yet, why the rush?

who's stopping you from joining a company and gaining experience first?

and no, i'm not discouraging you from vibecoding, do it 24/7, chase your goal, but it won't happen in 5 days

it won't happen in a week, or two, it will take at least 3–6 months

and then you'll face marketing, you might realize you built something nobody needs

no competitor research, no promotion analysis, no idea where to start, $0 budget

what's next?

burnout, apathy, disappointment...

i can test products for free because i have my audience, and i'm insanely grateful for that

social capital is one of the most valuable assets in the 21st century

AI evolves faster than humans build real relationships

don't set unrealistic expectations, don't demand from yourself like you're a 40-year-old entrepreneur

focus on quality, on gaining experience, on building strong connections

people stay with you if you're ambitious and honest, after first, second, even third attempt

just stay honest, stay consistent, keep trying, stay open to new connections

maybe this was a better conclusion than any other in my articles

gl ❤️