Build a Discord Bot for Pokemon Card Prices

Why Your Discord Server Needs a Pokemon Price Bot

Imagine your Pokemon collecting Discord community being able to:

• Type /price Charizard VMAX and instantly get current market prices
• Ask /compare Umbreon Alt Art, Espeon Alt Art to see side-by-side analysis
• Check /grading Pikachu VMAX for PSA ROI calculations
• Track /trending to see hot cards this week

No more leaving Discord to check prices. No more outdated information. Just instant, accurate data powered by a custom bot.

What You'll Build

A full-featured Discord bot with these commands:

• 🔍 /price <card> - Get current card prices with embed
• 📊 /compare <card1>, <card2> - Compare multiple cards
• 💎 /grading <card> - PSA grading ROI analysis
• 🔥 /trending - See market movers
• 📈 /history <card> - Price history chart
• ⭐ /set <name> - View set information
• 🎯 /search <query> - Advanced card search

Prerequisites

• Node.js 18+ installed
• Discord account & server for testing
• PokemonPriceTracker API key (get free)
• Basic JavaScript knowledge

Step 1: Set Up Discord Bot

1.1 Create Discord Application

1. Go to Discord Developer Portal
2. Click "New Application"
3. Name it "Pokemon Price Bot"
4. Go to "Bot" section → "Add Bot"
5. Copy your bot token (keep this secret!)

1.2 Set Bot Permissions

In the "Bot" section, enable these intents:

• ✅ Presence Intent
• ✅ Server Members Intent
• ✅ Message Content Intent

Under "OAuth2" → "URL Generator":

• Scopes: bot, applications.commands
• Bot Permissions:
  • Send Messages
  • Embed Links
  • Read Message History
  • Use Slash Commands

Copy the generated URL and invite your bot to your test server.

Step 2: Initialize Project

mkdir pokemon-price-bot
cd pokemon-price-bot
npm init -y

# Install dependencies
npm install discord.js dotenv axios canvas chart.js chartjs-node-canvas

Project Structure

pokemon-price-bot/
├── .env
├── .gitignore
├── package.json
├── index.js
├── commands/
│   ├── price.js
│   ├── compare.js
│   ├── grading.js
│   ├── trending.js
│   └── search.js
├── utils/
│   ├── api.js
│   ├── embeds.js
│   └── charts.js
└── deploy-commands.js

Configure Environment Variables (.env)

DISCORD_TOKEN=your_discord_bot_token
CLIENT_ID=your_discord_client_id
GUILD_ID=your_test_server_id
POKEMON_API_KEY=your_pokemonpricetracker_api_key

Step 3: Create API Wrapper

Create utils/api.js:

const axios = require('axios');

const API_BASE = 'https://www.pokemonpricetracker.com/api/v2';

class PokemonAPI {
  constructor(apiKey) {
    this.axios = axios.create({
      baseURL: API_BASE,
      headers: {
        'Authorization': `Bearer ${apiKey}`,
        'Content-Type': 'application/json'
      }
    });
  }

  async searchCards(query, options = {}) {
    const { data } = await this.axios.get('/cards', {
      params: {
        search: query,
        limit: options.limit || 10,
        ...options
      }
    });
    return data;
  }

  async parseTitle(title) {
    const { data } = await this.axios.post('/parse-title', {
      title
    });
    return data;
  }

  async getCardDetails(tcgPlayerId) {
    const { data } = await this.axios.get(`/cards/${tcgPlayerId}`);
    return data;
  }

  async getSets(limit = 20) {
    const { data } = await this.axios.get('/sets', {
      params: { limit }
    });
    return data;
  }

  async getMarketMovers() {
    const { data } = await this.axios.get('/market-movers');
    return data;
  }
}

module.exports = PokemonAPI;

Step 4: Create Embed Builder

Create utils/embeds.js for beautiful Discord embeds:

const { EmbedBuilder } = require('discord.js');

function createPriceEmbed(card) {
  const embed = new EmbedBuilder()
    .setColor(0x3B82F6)
    .setTitle(card.name)
    .setDescription(`**${card.setName}** • ${card.rarity}`)
    .setThumbnail(card.imageUrl || card.image?.url)
    .addFields(
      {
        name: '💰 Market Price',
        value: `$${card.prices.market.toFixed(2)}`,
        inline: true
      },
      {
        name: '📈 30d Change',
        value: card.priceChange30d ? `${card.priceChange30d > 0 ? '+' : ''}${card.priceChange30d.toFixed(1)}%` : 'N/A',
        inline: true
      },
      {
        name: '🔢 TCGPlayer ID',
        value: card.tcgPlayerId,
        inline: true
      }
    )
    .setFooter({
      text: 'Data from PokemonPriceTracker.com',
      iconURL: 'https://www.pokemonpricetracker.com/icon.svg'
    })
    .setTimestamp();

  // Add pricing breakdown if available
  if (card.prices) {
    let priceFields = [];
    if (card.prices.low) priceFields.push(`Low: $${card.prices.low.toFixed(2)}`);
    if (card.prices.mid) priceFields.push(`Mid: $${card.prices.mid.toFixed(2)}`);
    if (card.prices.high) priceFields.push(`High: $${card.prices.high.toFixed(2)}`);

    if (priceFields.length > 0) {
      embed.addFields({
        name: '💵 Price Range',
        value: priceFields.join(' • '),
        inline: false
      });
    }
  }

  return embed;
}

function createGradingEmbed(card, gradingData) {
  const rawValue = card.prices.market;
  const psa9Value = gradingData.psa9Average || rawValue * 1.15;
  const psa10Value = gradingData.psa10Average || rawValue * 1.75;

  const gradingCost = 30; // Average PSA cost
  const psa9Profit = psa9Value - rawValue - gradingCost;
  const psa10Profit = psa10Value - rawValue - gradingCost;

  const embed = new EmbedBuilder()
    .setColor(0x10B981)
    .setTitle(`🎯 PSA Grading Analysis: ${card.name}`)
    .setDescription(`**${card.setName}**`)
    .setThumbnail(card.imageUrl || card.image?.url)
    .addFields(
      {
        name: '📦 Raw Card Value',
        value: `$${rawValue.toFixed(2)}`,
        inline: true
      },
      {
        name: '🥈 PSA 9 Average',
        value: `$${psa9Value.toFixed(2)}`,
        inline: true
      },
      {
        name: '🥇 PSA 10 Average',
        value: `$${psa10Value.toFixed(2)}`,
        inline: true
      },
      {
        name: '💰 PSA 9 ROI',
        value: psa9Profit > 0
          ? `✅ +$${psa9Profit.toFixed(2)} (${((psa9Profit/rawValue)*100).toFixed(1)}% profit)`
          : `❌ -$${Math.abs(psa9Profit).toFixed(2)} (loss)`,
        inline: false
      },
      {
        name: '💎 PSA 10 ROI',
        value: psa10Profit > 0
          ? `✅ +$${psa10Profit.toFixed(2)} (${((psa10Profit/rawValue)*100).toFixed(1)}% profit)`
          : `❌ -$${Math.abs(psa10Profit).toFixed(2)} (loss)`,
        inline: false
      }
    );

  // Recommendation
  let recommendation = '';
  if (psa10Profit > 50) {
    recommendation = '🟢 **Strong Grade Candidate** - Excellent ROI potential if card is gem mint.';
  } else if (psa9Profit > 20) {
    recommendation = '🟡 **Moderate Grade Candidate** - Worthwhile if confident in PSA 9+.';
  } else {
    recommendation = '🔴 **Not Recommended** - Better to sell raw unless pristine condition.';
  }

  embed.addFields({
    name: '📊 Recommendation',
    value: recommendation,
    inline: false
  });

  embed.setFooter({
    text: 'Grading cost estimate: $30 • Data from PokemonPriceTracker.com',
    iconURL: 'https://www.pokemonpricetracker.com/icon.svg'
  });

  return embed;
}

function createCompareEmbed(cards) {
  const embed = new EmbedBuilder()
    .setColor(0x8B5CF6)
    .setTitle(`📊 Card Comparison (${cards.length} cards)`);

  cards.forEach((card, index) => {
    embed.addFields({
      name: `${index + 1}. ${card.name}`,
      value: [
        `**Set**: ${card.setName}`,
        `**Price**: $${card.prices.market.toFixed(2)}`,
        `**Rarity**: ${card.rarity}`,
        `**30d**: ${card.priceChange30d ? (card.priceChange30d > 0 ? '+' : '') + card.priceChange30d.toFixed(1) + '%' : 'N/A'}`
      ].join('\n'),
      inline: true
    });
  });

  embed.setFooter({
    text: 'Data from PokemonPriceTracker.com',
    iconURL: 'https://www.pokemonpricetracker.com/icon.svg'
  });

  return embed;
}

module.exports = {
  createPriceEmbed,
  createGradingEmbed,
  createCompareEmbed
};

Step 5: Implement Commands

Create commands/price.js:

const { SlashCommandBuilder } = require('discord.js');
const { createPriceEmbed } = require('../utils/embeds');

module.exports = {
  data: new SlashCommandBuilder()
    .setName('price')
    .setDescription('Get the current price of a Pokemon card')
    .addStringOption(option =>
      option.setName('card')
        .setDescription('Card name (e.g., "Charizard VMAX Darkness Ablaze")')
        .setRequired(true)
    ),
  async execute(interaction, api) {
    await interaction.deferReply();

    try {
      const cardQuery = interaction.options.getString('card');

      // Use parse-title for fuzzy matching
      const parseResult = await api.parseTitle(cardQuery);

      if (!parseResult.matches || parseResult.matches.length === 0) {
        return interaction.editReply({
          content: `❌ Could not find a card matching "${cardQuery}". Try being more specific!`,
          ephemeral: true
        });
      }

      const topMatch = parseResult.matches[0];
      const card = topMatch.card;
      const confidence = topMatch.confidence;

      const embed = createPriceEmbed(card);

      // Add confidence indicator if not perfect match
      if (confidence < 1.0) {
        embed.setDescription(
          `${embed.data.description}\n\n*Match confidence: ${(confidence * 100).toFixed(0)}%*`
        );
      }

      await interaction.editReply({ embeds: [embed] });
    } catch (error) {
      console.error('Error in price command:', error);
      await interaction.editReply({
        content: '❌ An error occurred while fetching card data. Please try again.',
        ephemeral: true
      });
    }
  }
};

Create commands/grading.js:

const { SlashCommandBuilder } = require('discord.js');
const { createGradingEmbed } = require('../utils/embeds');

module.exports = {
  data: new SlashCommandBuilder()
    .setName('grading')
    .setDescription('Analyze PSA grading ROI for a card')
    .addStringOption(option =>
      option.setName('card')
        .setDescription('Card name')
        .setRequired(true)
    ),
  async execute(interaction, api) {
    await interaction.deferReply();

    try {
      const cardQuery = interaction.options.getString('card');
      const parseResult = await api.parseTitle(cardQuery);

      if (!parseResult.matches || parseResult.matches.length === 0) {
        return interaction.editReply({
          content: `❌ Could not find "${cardQuery}"`,
          ephemeral: true
        });
      }

      const card = parseResult.matches[0].card;

      // Fetch detailed data with PSA info
      const details = await api.getCardDetails(card.tcgPlayerId);

      const gradingData = {
        psa9Average: details.ebayData?.psa9Average,
        psa10Average: details.ebayData?.psa10Average,
        population: details.psaPopulation
      };

      const embed = createGradingEmbed(card, gradingData);
      await interaction.editReply({ embeds: [embed] });
    } catch (error) {
      console.error('Error in grading command:', error);
      await interaction.editReply({
        content: '❌ Error analyzing grading ROI',
        ephemeral: true
      });
    }
  }
};

Create commands/compare.js:

const { SlashCommandBuilder } = require('discord.js');
const { createCompareEmbed } = require('../utils/embeds');

module.exports = {
  data: new SlashCommandBuilder()
    .setName('compare')
    .setDescription('Compare prices of multiple cards')
    .addStringOption(option =>
      option.setName('cards')
        .setDescription('Card names separated by commas (e.g., "Charizard VMAX, Pikachu VMAX")')
        .setRequired(true)
    ),
  async execute(interaction, api) {
    await interaction.deferReply();

    try {
      const cardsInput = interaction.options.getString('cards');
      const cardQueries = cardsInput.split(',').map(q => q.trim());

      if (cardQueries.length < 2) {
        return interaction.editReply({
          content: '❌ Please provide at least 2 cards separated by commas',
          ephemeral: true
        });
      }

      if (cardQueries.length > 5) {
        return interaction.editReply({
          content: '❌ Maximum 5 cards for comparison',
          ephemeral: true
        });
      }

      const cards = [];
      for (const query of cardQueries) {
        const parseResult = await api.parseTitle(query);
        if (parseResult.matches && parseResult.matches.length > 0) {
          cards.push(parseResult.matches[0].card);
        }
      }

      if (cards.length === 0) {
        return interaction.editReply({
          content: '❌ Could not find any matching cards',
          ephemeral: true
        });
      }

      const embed = createCompareEmbed(cards);
      await interaction.editReply({ embeds: [embed] });
    } catch (error) {
      console.error('Error in compare command:', error);
      await interaction.editReply({
        content: '❌ Error comparing cards',
        ephemeral: true
      });
    }
  }
};

Step 6: Create Main Bot File

Create index.js:

require('dotenv').config();
const { Client, Collection, GatewayIntentBits } = require('discord.js');
const fs = require('fs');
const path = require('path');
const PokemonAPI = require('./utils/api');

// Initialize Discord client
const client = new Client({
  intents: [
    GatewayIntentBits.Guilds,
    GatewayIntentBits.GuildMessages,
    GatewayIntentBits.MessageContent
  ]
});

// Initialize Pokemon API
const pokemonAPI = new PokemonAPI(process.env.POKEMON_API_KEY);

// Load commands
client.commands = new Collection();
const commandsPath = path.join(__dirname, 'commands');
const commandFiles = fs.readdirSync(commandsPath).filter(file => file.endsWith('.js'));

for (const file of commandFiles) {
  const filePath = path.join(commandsPath, file);
  const command = require(filePath);
  client.commands.set(command.data.name, command);
}

// Bot ready event
client.once('ready', () => {
  console.log(`✅ Bot is online as ${client.user.tag}!`);
  client.user.setActivity('/price | Pokemon Card Prices', { type: 'WATCHING' });
});

// Handle slash commands
client.on('interactionCreate', async interaction => {
  if (!interaction.isChatInputCommand()) return;

  const command = client.commands.get(interaction.commandName);

  if (!command) return;

  try {
    await command.execute(interaction, pokemonAPI);
  } catch (error) {
    console.error(`Error executing ${interaction.commandName}:`, error);
    await interaction.reply({
      content: '❌ There was an error executing this command!',
      ephemeral: true
    });
  }
});

// Error handling
client.on('error', error => {
  console.error('Discord client error:', error);
});

process.on('unhandledRejection', error => {
  console.error('Unhandled promise rejection:', error);
});

// Login
client.login(process.env.DISCORD_TOKEN);

Step 7: Deploy Commands

Create deploy-commands.js:

require('dotenv').config();
const { REST, Routes } = require('discord.js');
const fs = require('fs');

const commands = [];
const commandFiles = fs.readdirSync('./commands').filter(file => file.endsWith('.js'));

for (const file of commandFiles) {
  const command = require(`./commands/${file}`);
  commands.push(command.data.toJSON());
}

const rest = new REST({ version: '10' }).setToken(process.env.DISCORD_TOKEN);

(async () => {
  try {
    console.log(`Started refreshing ${commands.length} application (/) commands.`);

    const data = await rest.put(
      Routes.applicationGuildCommands(process.env.CLIENT_ID, process.env.GUILD_ID),
      { body: commands },
    );

    console.log(`✅ Successfully reloaded ${data.length} application (/) commands.`);
  } catch (error) {
    console.error(error);
  }
})();

Run it:

node deploy-commands.js

Step 8: Run Your Bot

node index.js

Test in Discord:

• /price Charizard VMAX
• /grading Umbreon VMAX Alt Art
• /compare Pikachu VMAX, Raichu VMAX

Step 9: Deploy to Production

Option 1: Heroku (Free Tier)

# Install Heroku CLI
npm install -g heroku

# Login and create app
heroku login
heroku create pokemon-price-bot

# Set environment variables
heroku config:set DISCORD_TOKEN=your_token
heroku config:set POKEMON_API_KEY=your_api_key
heroku config:set CLIENT_ID=your_client_id

# Create Procfile
echo "worker: node index.js" > Procfile

# Deploy
git init
git add .
git commit -m "Initial commit"
git push heroku main

# Scale worker
heroku ps:scale worker=1

Option 2: Railway.app (Recommended)

1. Go to Railway.app
2. Click "New Project" → "Deploy from GitHub"
3. Connect your repository
4. Add environment variables in dashboard
5. Deploy automatically

Option 3: VPS (DigitalOcean, Linode)

# On your VPS
git clone your-repo
cd pokemon-price-bot
npm install

# Use PM2 for process management
npm install -g pm2
pm2 start index.js --name pokemon-bot
pm2 save
pm2 startup

Advanced Features

Rate Limiting

Add cooldowns to prevent spam:

const cooldowns = new Collection();

// In command execution
const { cooldowns } = interaction.client;

if (!cooldowns.has(command.data.name)) {
  cooldowns.set(command.data.name, new Collection());
}

const now = Date.now();
const timestamps = cooldowns.get(command.data.name);
const cooldownAmount = (command.cooldown || 3) * 1000;

if (timestamps.has(interaction.user.id)) {
  const expirationTime = timestamps.get(interaction.user.id) + cooldownAmount;

  if (now < expirationTime) {
    const timeLeft = (expirationTime - now) / 1000;
    return interaction.reply({
      content: `Please wait ${timeLeft.toFixed(1)} more seconds before using \`${command.data.name}\` again.`,
      ephemeral: true
    });
  }
}

timestamps.set(interaction.user.id, now);
setTimeout(() => timestamps.delete(interaction.user.id), cooldownAmount);

Button Interactions

Add buttons for pagination:

const { ActionRowBuilder, ButtonBuilder, ButtonStyle } = require('discord.js');

const row = new ActionRowBuilder()
  .addComponents(
    new ButtonBuilder()
      .setCustomId('previous')
      .setLabel('Previous')
      .setStyle(ButtonStyle.Primary),
    new ButtonBuilder()
      .setCustomId('next')
      .setLabel('Next')
      .setStyle(ButtonStyle.Primary)
  );

await interaction.editReply({
  embeds: [embed],
  components: [row]
});

Troubleshooting

Bot doesn't respond to commands:

• Verify bot has proper permissions in server
• Check if commands are registered (deploy-commands.js)
• Ensure intents are enabled in Discord Developer Portal

API errors:

• Verify API key is valid
• Check rate limits (100 calls/day on free tier)
• Confirm API endpoints are correct

Deployment issues:

• Check environment variables are set
• Verify Node.js version (18+ required)
• Review logs for error messages

Cost Breakdown

Free Setup:

• Discord bot: Free
• PokemonPriceTracker API: Free (100 credits/day)
• Railway/Heroku hosting: Free tier
• Total: $0/month

Production Setup:

• Discord bot: Free
• PokemonPriceTracker API: $9.99/month (20K credits/day)
• Railway Pro: $5/month
• Total: $14.99/month

What's Next?

Enhance your bot with:

• Price history charts with Chart.js
• Automatic price alerts
• Collection tracking per user
• Set EV calculations
• Market trend notifications

Related Tutorials

• ChatGPT Custom GPT for Pokemon Cards
• Python Pokemon Price Automation
• Telegram Pokemon Price Alert Bot

Get Your API Key

Ready to build your bot? Get your free API key:

Get Free API Key →

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Need help? Join our Discord community or check the full source code on GitHub.