Minecraft Custom Mod Builder by Apoth3osis

Name: Minecraft Custom Mod Builder
Brand: Apoth3osis
SKU: 69f94706113a9d7251fe31e2
Price: 0.25 USD
Availability: InStock

Minecraft Custom Mod Builder

Function

Available ActionsEach successful request consumes credits as outlined below.

list_capabilities^25crvalidate_mod_project^25crcreate_mod_project^25crrender_preview_image^25cr

Details

Create your own custom Minecraft mods and add-ons — no coding required. Just describe what you want to add to the game, from a flaming sword or a glowing ore to a rideable mob, a custom skin pack, or a whole new dimension, and get back a ready-to-install file in seconds. Build for Minecraft Bedrock (.mcaddon) and Java with Fabric and NeoForge (.jar). Create items, weapons, tools, armor, blocks, ores, food, mobs, bosses, biomes, structures, recipes, loot tables, enchantments, trades, and special in-game behavior — each with its own custom texture from a color, your own artwork, or generated pixel art. Preview every icon before you install, and download editable source so you can keep building. Perfect for creators, streamers, server owners, and players who want their own Minecraft content fast.

Use Cases

Create installable Minecraft Bedrock add-ons (.mcaddon) from a simple description, Build Java mods for Fabric and NeoForge and download the .jar, Design custom swords, pickaxes, tools, and armor with their own textures, Add new blocks, ores, and crops with world generation, Create custom mobs from passive animals to hostile bosses and tameable pets, Make Bedrock skin packs (.mcpack) for a fresh character look, Give items special behavior like a sword that sets enemies on fire, Add custom crafting recipes, loot tables, enchantments, and villager trades, Generate custom biomes, dimensions, and structures, Use a color, your own image, or generated pixel art for every texture, Preview textures and icons before installing, Get editable source files to keep customizing your mod

Dynamic MCP Setup

Connect once through AgentPMT Dynamic MCP, then use approved tools from the same agent connection.

30 Second Setup

STDIO connector for Claude Code, Codex, Cursor, Zed, and other LLMs that require STDIO or custom connections.

npm install -g @agentpmt/mcp-routeragentpmt-setup

Hosted Streamable HTTPS

MCP endpoint for browser-based apps like ChatGPT, Claude, Grok, or any time you want a streamable connection with no local install.

https://api.agentpmt.com/mcp

Config Example

Use the hosted endpoint directly in clients that support remote MCP. Store your Bearer token in the client config or secret field.

Full connection guide

{
  "mcpServers": {
    "agentpmt": {
      "type": "streamable-http",
      "url": "https://api.agentpmt.com/mcp",
      "headers": {
        "Authorization": "Bearer <AGENTPMT_BEARER_TOKEN>",
        "x-instance-metadata": "{\"client\":\"generic-mcp\",\"platform\":\"remote\"}"
      }
    }
  }
}

Need client videos, organization controls, audit details, and the full feature overview?

More About Dynamic MCP

Actions(4)

list_capabilities^25cr1 param

Return supported platforms, pinned dependencies, feature kinds, event kinds, action kinds, output artifacts, unsupported categories, the v2 schema version, the major capability matrix, and the Bedrock component registry derived from the pinned Mojang Bedrock Samples archive.

target_platformstring

Target platform. 'bedrock' generates a .mcaddon for Minecraft Bedrock Edition. 'bedrock_skinpack' generates a .mcpack skin pack. 'fabric' / 'neoforge' generate Java mod source zips and built jars.

Values:

bedrockbedrock_skinpackfabricneoforge

validate_mod_project^25cr13 params

Validate either a structured mod specification (spec mode) or a previously generated source archive (archive mode). Spec mode: provide target_platform, mod_id, mod_name, features (or skin_pack for skinpacks). Archive mode: provide source_archive_file_id. Returns a validation report with error codes and warnings; does NOT write artifacts.

target_platformstring

Required for spec-mode validation. Optional in archive-mode (omit when passing source_archive_file_id). One of bedrock, bedrock_skinpack, fabric, neoforge.

Values:

bedrockbedrock_skinpackfabricneoforge

mod_idstring

Required for spec-mode validation (lowercase ^[a-z][a-z0-9_]{1,63}$). Optional in archive-mode.

mod_namestring

Required for spec-mode validation. Optional in archive-mode.

minecraft_versionstring

Pinned Minecraft version. Omit to use the platform default.

descriptionstring

Short mod description shown in the pack metadata.

compatibility_modestring

Values:

strictallow_platform_passthrough

Default: strict

mod_metadataobject

Optional ModMetadataSpec: version, license, authors, homepage_url, issue_tracker_url, credits, logo_texture, brand_color_hex (#RRGGBB), java_side, bedrock_experiments. See get_instructions for the full shape.

assetsobject

Optional AssetSetSpec containing pre-bound textures/sounds/particles/models/language entries: {textures: NamedAssetSpec[], sounds: NamedAssetSpec[], particles: NamedAssetSpec[], models: NamedAssetSpec[], language: {locale: {key: value}}}. See get_instructions for shape.

advanced_resourcesarray

Escape-hatch list of AdvancedResourceSpec entries for files the structured surface does not model (raw JSON blobs, custom sound definitions, etc.). Each entry has {path, content_base64|content_text|source_file_id, content_type}.

Array of: object

featuresobject

Structured feature set (items, blocks, entities, events, etc.). Required for spec-mode validation on non-skinpack targets.

Properties:

animation_controllers(array)

animations(array)

biomes(array)

blocks(array)

commands(array)

damage_types(array)

dimensions(array)

effects(array)

enchantments(array)

entities(array)

events(array)

functions(array)

game_rules(array)

items(array)

localizations(array)

loot_tables(array)

machines(array)

particles(array)

recipes(array)

render_controllers(array)

scoreboards(array)

sounds(array)

storage(array)

structures(array)

trades(array)

transportation(array)

ui(array)

worldgen(array)

skin_packobject

Skin pack definition. Required for spec-mode validation when target_platform='bedrock_skinpack'.

Properties:

display_name(string)

pack_id(string)

skins(array)

allow_experimental_bedrock_featuresboolean

Allow Bedrock features that require experimental world toggles.

source_archive_file_idstring

File Manager file_id for a previously generated source zip. Supply this for archive-mode validation (skips spec validation; replays the zip's contents).

create_mod_project^25cr16 params(3 required)

Generate mod artifacts and upload them to File Manager. Returns artifact file_ids, signed URLs, generated file manifests, validation results, install instructions, warnings, and build reports. Always follow this call with render_preview_image to confirm the icon before asking the user to install.

target_platformrequiredstring

Required. One of bedrock, bedrock_skinpack, fabric, neoforge. Legacy 'forge' is rejected with a migration error pointing to 'neoforge'.

Values:

bedrockbedrock_skinpackfabricneoforge

mod_idrequiredstring

Required. Lowercase ^[a-z][a-z0-9_]{1,63}$. Becomes the mod namespace in generated identifiers (e.g. <mod_id>:flame_sword).

mod_namerequiredstring

Human-readable mod name shown in the pack list.

minecraft_versionstring

Pinned Minecraft version. Omit to use the platform default.

descriptionstring

Short mod description shown in the pack metadata.

compatibility_modestring

Values:

strictallow_platform_passthrough

Default: strict

mod_metadataobject

assetsobject

advanced_resourcesarray

Array of: object

featuresobject

Structured feature set. Required when target_platform is bedrock/fabric/neoforge. Omit when target_platform='bedrock_skinpack' (use skin_pack instead).

Properties:

animation_controllers(array)

animations(array)

biomes(array)

blocks(array)

commands(array)

damage_types(array)

dimensions(array)

effects(array)

enchantments(array)

entities(array)

events(array)

functions(array)

game_rules(array)

items(array)

localizations(array)

loot_tables(array)

machines(array)

particles(array)

recipes(array)

render_controllers(array)

scoreboards(array)

sounds(array)

storage(array)

structures(array)

trades(array)

transportation(array)

ui(array)

worldgen(array)

skin_packobject

Skin pack definition. Required when target_platform='bedrock_skinpack'.

Properties:

display_name(string)

pack_id(string)

skins(array)

output_modestring

Artifact mode: 'installable' (.mcaddon/.mcpack/.jar only), 'source' (zip only), or 'both'.

Values:

installablesourceboth

Default: both

build_jarboolean

Fabric/NeoForge only; build the jar offline when true.

Default: true

validate_outputboolean

Run platform validation (Bedrock Creator Tools) where available.

Default: true

include_file_previewboolean

Include capped previews for small generated text files in the response.

allow_experimental_bedrock_featuresboolean

Allow Bedrock features that require experimental world toggles.

render_preview_image^25cr18 params

Render an enlarged PNG preview for an item/block/entity texture and upload it to File Manager. Three modes: (1) spec preview — pass target_platform, mod_id, mod_name, features; (2) archive preview — pass source_archive_file_id; (3) direct image preview — pass preview_source_file_id. Returns a preview artifact with PNG file_id, signed URL, and image metadata.

target_platformstring

Required for spec-mode preview. Optional when passing source_archive_file_id or preview_source_file_id.

Values:

bedrockbedrock_skinpackfabricneoforge

mod_idstring

Required for spec-mode preview; optional for archive-mode (defaults to the archive's mod_id).

mod_namestring

Required for spec-mode preview.

minecraft_versionstring

Pinned Minecraft version. Omit to use the platform default.

descriptionstring

Short mod description shown in the pack metadata.

compatibility_modestring

Values:

strictallow_platform_passthrough

Default: strict

mod_metadataobject

assetsobject

advanced_resourcesarray

Array of: object

featuresobject

Structured feature set (items, blocks, entities, events, etc.). Required for create_mod_project on non-skinpack targets.

Properties:

animation_controllers(array)

animations(array)

biomes(array)

blocks(array)

commands(array)

damage_types(array)

dimensions(array)

effects(array)

enchantments(array)

entities(array)

events(array)

functions(array)

game_rules(array)

items(array)

localizations(array)

loot_tables(array)

machines(array)

particles(array)

recipes(array)

render_controllers(array)

scoreboards(array)

sounds(array)

storage(array)

structures(array)

trades(array)

transportation(array)

ui(array)

worldgen(array)

skin_packobject

Skin pack definition. Required for create_mod_project when target_platform='bedrock_skinpack'.

Properties:

display_name(string)

pack_id(string)

skins(array)

allow_experimental_bedrock_featuresboolean

Allow Bedrock features that require experimental world toggles.

source_archive_file_idstring

File Manager file_id for a previously generated source zip. Use to preview an asset from a built mod without re-supplying the spec.

preview_source_file_idstring

render_preview_image: File Manager file_id for a user-supplied image to preview directly.

preview_target_kindstring

render_preview_image: 'item', 'block', or 'entity'. Omit to auto-select.

Values:

itemblockentity

preview_target_idstring

render_preview_image: feature id or namespaced id to preview.

preview_sizeinteger

render_preview_image: square preview size in pixels (32-1024). Default 256.

Default: 256

Range: 32 - 1024

preview_backgroundstring

render_preview_image: background style for the preview canvas.

Values:

checkerboardtransparentwhiteblack

Default: checkerboard

curl -X POST "https://api.agentpmt.com/products/purchase" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer ********" \
  -d '{
    "product_id": "69f94706113a9d7251fe31e2",
    "parameters": {
      "action": "list_capabilities"
    }
  }'

import requests
import json

url = "https://api.agentpmt.com/products/purchase"

headers = {
    "Content-Type": "application/json",
    "Authorization": "Bearer ********"
}

data = {
    "product_id": "69f94706113a9d7251fe31e2",
    "parameters": {
        "action": "list_capabilities"
    }
}

response = requests.post(url, headers=headers, json=data)
print(response.status_code)
print(response.json())

const url = "https://api.agentpmt.com/products/purchase";

const headers = {
  "Content-Type": "application/json",
  "Authorization": "Bearer ********"
};

const data = {
  product_id: "69f94706113a9d7251fe31e2",
  parameters: {
    "action": "list_capabilities"
  }
};

fetch(url, {
  method: "POST",
  headers,
  body: JSON.stringify(data)
})
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error("Error:", error));

const axios = require('axios');

const url = "https://api.agentpmt.com/products/purchase";

const headers = {
  "Content-Type": "application/json",
  "Authorization": "Bearer ********"
};

const data = {
  product_id: "69f94706113a9d7251fe31e2",
  parameters: {
    "action": "list_capabilities"
  }
};

axios.post(url, data, { headers })
  .then(response => {
    console.log(response.status);
    console.log(response.data);
  })
  .catch(error => {
    console.error("Error:", error.message);
  });

Login to view your API and budget keys. The example above uses placeholder values. Sign in to see personalized code with your bearer token.

Usage Instructions

Usage guidance provided directly by the developer for this product.

Minecraft Mod Builder

Generate deterministic Minecraft Bedrock, Fabric, and NeoForge mod artifacts from structured specifications. This tool does not call an LLM, does not accept prompts, and does not require user credentials.

Two Rules That Will Save You Many Retries

Rule 1 — One ItemSpec equals one in-game item

A single ItemSpec produces one in-game item. The fields damage, durability, max_stack_size, nutrition, tool, armor, food, block_placer, entity_placer, enchantable, repairable, digger, cooldown, glint, rarity, dyeable, and component_overrides all attach to the same item. A weapon does not need a separate entity or a separate "damage item." A sword does not need a partner "enchantment item." You ship one item; this tool wires up every relevant Minecraft component on that item from the fields above.

Do not split one weapon idea across many items[] entries. Do not duplicate a weapon and call one copy "damage" and another "durability." That is the most common source of bloated, broken submissions.

Rule 2 — Every visible asset requires a texture

Items, blocks, entities, particles, named texture assets, machines, storage, and skin-pack skins must each carry a texture with one of these three sources:

source_base64 — base64-encoded PNG or JPEG bytes (max 1024×1024, max 5 MB).
source_file_id — a File Manager file_id for a user-uploaded image.
color_hex — an explicit #RRGGBB color. Only item_kind in {tool, weapon} (with tool_type) and the dedicated texture_kind in {block, entity} paths produce a recognizable sprite (sword/pickaxe/axe/shovel/hoe; shaded block face; humanoid silhouette). For every other kind — generic, food, fuel, projectile, block_placer, entity_placer, armor, particles, machines, storage — color_hex renders only as a flat colored 16×16 square. That is appropriate for raw materials (ingots, dust, gems) but looks like a missing texture for armor/food/machines. Use source_base64 or source_file_id whenever the item's identity is visual (armor, food, machines, storage, projectiles). Tool/weapon color_hex requires tool_type; otherwise rejected.

A spec that omits the texture binding is rejected at validation with MINECRAFT_VISIBLE_ASSET_TEXTURE_REQUIRED. There is no procedural blob fallback. If you want the user to see something, you supply the texture.

Armor pieces must ship a real PNG. item_kind="armor" rejects color_hex-only textures (MINECRAFT_ARMOR_TEXTURE_REQUIRES_IMAGE) — the procedural sprite for armor is a flat colored square, which looks broken on the wearer model and in inventory. Supply source_base64 or source_file_id for every helmet/chestplate/leggings/boots.

Authoring textures with the Icon Generator + `pixelize_to`

The canonical way to author textures for items, blocks, entities, and particles is the Icon Generator (/product-icon-generator). Render at the exact target grid in pixel_art_mode=true — 16×16 for items and blocks, 64×64 for entities and skin packs — and pipe the returned file_id straight into this texture's source_file_id. Detailed recipes live in agent_instructions/minecraft_texture_agent.md.

When the texture originates outside the Icon Generator (AI image creator, user upload, third-party source), use the ingest-side safety net by setting texture.pixelize_to and optionally texture.palette_colors. Both fields are opt-in (None by default) so existing bindings remain byte-identical. Example: {"texture": {"source_file_id": "abc...", "pixelize_to": 16, "palette_colors": 8}} nearest-neighbor downscales the input to 16×16 and quantizes it to an 8-color palette with dithering disabled, producing crisp pixel-art output regardless of how the source was made. Failures surface as MINECRAFT_TEXTURE_PIXELIZE_FAILED.

Recommended defaults unless you have a specific reason to deviate: items/blocks → pixelize_to: 16, palette_colors: 8; entities/skins → pixelize_to: 64, palette_colors: 16; particles → pixelize_to: 16, palette_colors: 4. The color_hex binding path is unaffected — it already produces crisp procedural sprites.

Quick Recipes

Diamond sword

{"items":[{"item_id":"flame_sword","display_name":"Flame Sword","item_kind":"weapon","tool_type":"sword","tool_tier":"diamond","damage":7,"texture":{"color_hex":"#ff5522"}}]}

Iron pickaxe

{"items":[{"item_id":"iron_pickaxe","display_name":"Iron Pickaxe","item_kind":"tool","tool_type":"pickaxe","tool_tier":"iron","texture":{"color_hex":"#cccccc"}}]}

Custom-texture armor set

{"items":[
  {"item_id":"set_helmet","display_name":"Set Helmet","item_kind":"armor","tool_tier":"diamond","armor":{"slot":"head","protection":3,"toughness":2},"texture":{"source_file_id":"<file_id>","pixelize_to":16,"palette_colors":8}},
  {"item_id":"set_chest","display_name":"Set Chest","item_kind":"armor","tool_tier":"diamond","armor":{"slot":"chest","protection":8,"toughness":2},"texture":{"source_file_id":"<file_id>","pixelize_to":16,"palette_colors":8}},
  {"item_id":"set_legs","display_name":"Set Legs","item_kind":"armor","tool_tier":"diamond","armor":{"slot":"legs","protection":6,"toughness":2},"texture":{"source_file_id":"<file_id>","pixelize_to":16,"palette_colors":8}},
  {"item_id":"set_boots","display_name":"Set Boots","item_kind":"armor","tool_tier":"diamond","armor":{"slot":"feet","protection":3,"toughness":2},"texture":{"source_file_id":"<file_id>","pixelize_to":16,"palette_colors":8}}
]}

Block + matching ore

{"blocks":[{"block_id":"raw_obsidium","display_name":"Raw Obsidium","block_kind":"basic","hardness":3.0,"resistance":12,"texture":{"color_hex":"#2a0033"}}],"worldgen":[{"feature_id":"obsidium_ore","feature_kind":"ore_feature","block_id":"raw_obsidium","vein_size":4,"count_per_chunk":2,"min_y":0,"max_y":48,"biomes":["minecraft:overworld"]}]}

Passive entity (sheep-like)

{"entities":[{"entity_id":"cloudling","display_name":"Cloudling","entity_kind":"passive_mob","health":12,"texture":{"source_file_id":"<file_id>","pixelize_to":64,"palette_colors":16}}]}

Sword with on-hit fire event

{"items":[{"item_id":"flame_sword","display_name":"Flame Sword","item_kind":"weapon","tool_type":"sword","tool_tier":"diamond","damage":7,"texture":{"color_hex":"#ff5522"}}],"events":[{"event_id":"flame_sword_ignite","event_kind":"on_item_hit_entity","conditions":[{"condition_kind":"held_item","identifier":"modid:flame_sword"}],"actions":[{"action_kind":"set_on_fire","duration_ticks":120}]}]}

Skin pack (Bedrock)

{"action":"create_mod_project","target_platform":"bedrock_skinpack","mod_id":"blue_pack","mod_name":"Blue Pack","skin_pack":{"pack_id":"blue_pack","display_name":"Blue Pack","skins":[{"skin_id":"blue_hero","display_name":"Blue Hero","texture":{"source_base64":"<base64-encoded 64x64 PNG>"}}]}}

Skin pack textures must be exactly 64×64 PNG.

Verify Every Generation

Always follow create_mod_project with a render_preview_image call against the just-generated mod_id. The preview confirms the icon renders correctly before you ask the user to install. If the preview looks like a flat colored square or the wrong tool sprite, you forgot item_kind, tool_type, or both.

Common Mistakes

Mistake	What happens now
`item_kind="generic"` on a weapon with `damage` set	Rejected: `MINECRAFT_ITEM_KIND_REQUIRES_PRESET`
`item_kind="tool"` without `tool_type`	Rejected: `MINECRAFT_ITEM_KIND_REQUIRES_PRESET`
`item_kind="weapon"` with `tool_type="pickaxe"`	Rejected: weapon requires `sword` or `custom`
`item_kind="armor"` without `armor` or `wearable`	Rejected: `MINECRAFT_ITEM_KIND_REQUIRES_PRESET`
`item_kind="food"` without `food` preset or `nutrition`	Rejected: `MINECRAFT_ITEM_KIND_REQUIRES_PRESET`
`texture` omitted on any visible asset	Rejected: `MINECRAFT_VISIBLE_ASSET_TEXTURE_REQUIRED`
`texture: {}` with no `color_hex`, `source_base64`, or `source_file_id`	Rejected: `MINECRAFT_TEXTURE_SOURCE_REQUIRED`
`item_kind="armor"` with `texture: {color_hex: ...}` only	Rejected: `MINECRAFT_ARMOR_TEXTURE_REQUIRES_IMAGE`
`pixelize_to` set to a value other than 16, 32, 64, or 128	Rejected: schema validation
Source image fails to decode during pixelize	`MINECRAFT_TEXTURE_PIXELIZE_FAILED`
Pickaxe specced to "break any block" but only breaks a few	Add `tool.break_all_blocks: true`
Feature appears in the wrong platform build	Set `enabled_platforms: ["bedrock"]` (or fabric/neoforge)
Block `drops` references an item id that doesn't exist	Rejected with `MINECRAFT_SPEC_VALIDATION_FAILED`
Multiple `items[]` entries for one weapon	Two items in inventory; collapse to one ItemSpec
`on_item_hit_entity` without a `held_item` condition	Fires for every hit; add a `held_item` condition
`command_id` shadowing a Minecraft command (e.g. `give`, `tp`)	Reject or behavior conflict; pick a unique id

Supported Platforms

bedrock: Minecraft Bedrock add-on generation. Produces .mcaddon installables and Mojang Minecraft Creator Tools validation reports.
fabric: Minecraft Java Fabric generation. Produces source zips and optional built jars.
neoforge: Minecraft Java NeoForge generation. Produces source zips and optional built jars.
bedrock_skinpack: Bedrock skin pack generation. Produces .mcpack files.
forge is retired. Use neoforge.

Texture Binding Fields (BindingTextureSpec)

Every visible asset's texture field is a BindingTextureSpec. Required: exactly one of color_hex, source_base64, or source_file_id.

Optional ingest-side transforms:

pixelize_to: integer in {16, 32, 64, 128}. Nearest-neighbor downscales the source image to that square dimension before baking.
palette_colors: integer 2-256. Quantizes the (post-pixelize) image to the requested palette size via Fast Octree (no dither).

Both fields default to None (no transform). They only affect the source_base64 and source_file_id paths; color_hex renders are unaffected.

Actions

list_capabilities: Return the supported feature/event/action matrix for a target platform.
validate_mod_project: Validate a spec without writing artifacts. Use to check coherence before paying for create_mod_project.
create_mod_project: Validate + generate the mod artifact. Returns source zip and/or installable archive paths.
render_preview_image: Render an enlarged preview of a generated texture/icon for verification.

Output Behavior

Bedrock installable returns a .mcaddon and validation report. With validate_output=true, Mojang Minecraft Creator Tools validates the generated add-on.
Fabric/NeoForge installable returns a jar when build_jar=true; otherwise use source for source zips only.
render_preview_image returns a preview artifact with a PNG file_id, signed URL, and image metadata.
Artifacts expire according to the File Manager storage policy.

About this Product

Your own Minecraft mods — no coding required

Minecraft Custom Mod Builder turns a simple description into a finished, installable mod. Tell it what you want to add to the game — a glowing ore, a flaming sword, a rideable beast, or a brand-new dimension — and get back a ready-to-play file in seconds. Build for Minecraft Bedrock (phones, console, and Windows) or Minecraft Java with Fabric and NeoForge.

What you can build

Items & gear — swords, pickaxes, axes, shovels, hoes, armor sets, food, fuel, and projectiles, each placed in the right creative-inventory tab.
Blocks & world content — custom blocks, ores with world generation, crops, plants, machines, and storage containers.
Mobs & bosses — passive animals, hostile monsters, neutral and tameable creatures, rideable mounts, and boss battles.
Gameplay systems — crafting recipes, loot tables, enchantments, status effects, villager-style trades, and custom commands.
Worlds — custom biomes, dimensions, structures, and spawn rules.
Skin packs — Bedrock skin packs (.mcpack) for a fresh look.
Special behavior — wire up actions like a sword that ignites enemies on hit or a block that triggers an effect when used.

Make it look exactly how you want

Give every item, block, and creature its own texture. Pick a color, upload your own artwork, or drop in a generated pixel-art sprite. Preview each texture and icon in advance so you know it looks right before you ever install the mod.

How it works

Describe it. Say what you want to add to Minecraft.
Preview it. Check the generated textures and icons.
Install & play. Download the ready-to-install file and load it into your game or server.

What you get

Ready-to-install .mcaddon, .mcpack, and .jar files.
Editable source projects so you can keep building and customizing.
Preview images of your textures and icons.

Who it's for

Creators, streamers, realm and server owners, educators, and players who want custom Minecraft content — fast, and without learning to code.

Frequently Asked Questions

How do I connect this tool to an external agent?

You can install the local MCP server by opening a terminal and running:

Install commands

npm install -g @agentpmt/mcp-router
agentpmt-setup

This will connect you to local agents like Claude Code, Windsurf, Grok Build, Cursor, etc.

Alternatively you can connect to the hosted version with this config block, no installation required:

Hosted MCP config

{
  "mcpServers": {
    "agentpmt": {
      "type": "streamable-http",
      "url": "https://api.agentpmt.com/mcp",
      "headers": {
        "Authorization": "Bearer <AGENTPMT_BEARER_TOKEN>",
        "x-instance-metadata": "{\"client\":\"generic-mcp\",\"platform\":\"remote\"}"
      }
    }
  }
}

View MCP Connection Instructions for more details.

How does an external agent use this tool?

After the external agent is connected to an Agent Group that can use this tool, paste this prompt into the agent:

Agent prompt

Use the AgentPMT-Tool-Search-and-Execution tool. First call action 'get_instructions' so you know how to use the tool search interface. Then call action 'get_schema' with tool_id 69f94706113a9d7251fe31e2 ("Minecraft Custom Mod Builder"). After reading the schema and any returned instructions, tell me what this tool can do, we are going to be using it

The agent should fetch the tool schema first, collect the required parameters for your request, and then call the tool through AgentPMT.

Can I use my own artwork for textures?

Yes. Give any item, block, or creature a solid color, upload your own image, or use a generated pixel-art sprite — and preview it before you install.

Do I need to know how to code?

No. Just describe what you want to add to Minecraft and you'll get back a finished, installable mod file — textures, items, behavior, and all.

What can I create?

Items, weapons, tools, and armor; blocks, ores, and crops; custom mobs and bosses; recipes, loot tables, enchantments, and trades; plus biomes, dimensions, and structures.

What do I get when my mod is finished?

A ready-to-install file you can load straight into Minecraft, preview images of your textures and icons, and editable source files so you can keep customizing.

Which versions of Minecraft does it support?

Both editions. It builds Bedrock add-ons (.mcaddon) and skin packs (.mcpack) for phones, console, and Windows, plus Java mods for Fabric and NeoForge (.jar).

Minecraft Custom Mod Builder

Available ActionsEach successful request consumes credits as outlined below.

Details

Use Cases

Dynamic MCP Setup

30 Second Setup

Hosted Streamable HTTPS

Config Example

About this Product

Your own Minecraft mods — no coding required

What you can build

Make it look exactly how you want

How it works

What you get

Who it's for

Frequently Asked Questions

How do I connect this tool to an external agent?

How does an external agent use this tool?

Can I use my own artwork for textures?

Do I need to know how to code?

What can I create?

What do I get when my mod is finished?

Which versions of Minecraft does it support?

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