Skip to main content
Glama

EVE ESI Tool ๐Ÿš€

An EVE Online ESI API interface with a Model Context Protocol (MCP) server for AI agent integration. Connect your EVE character to Claude, Augment Code, Cursor, or any MCP-compatible AI assistant โ€” then ask questions like "What's in my cargo hold?", "Suggest a Hookbill fit for solo FW", or "What are my most valuable assets?"


Architecture

graph TB
    subgraph AI["AI Clients"]
        A[Claude Desktop]
        B[Augment Code]
        C[Cursor]
        D[Claude Code CLI]
    end

    subgraph MCP["MCP Server ยท mcp_server.py"]
        E["34 Tools\nโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€\nCharacter ยท Skills ยท Assets\nWallet ยท Fittings ยท Market\nUniverse ยท Navigation\nHauling ยท Fitting Analysis\nCross-Character"]
    end

    subgraph LIB["eve_esi library"]
        F["auth.py\nOAuth2 SSO + PKCE"]
        G["client.py\nESI HTTP Client\nauto token refresh"]
        H["endpoints/\nassets ยท characters ยท fittings\nfitting_analysis ยท hauling ยท market\nnavigation ยท skills ยท universe ยท wallet"]
    end

    subgraph EVE["EVE Online"]
        I["ESI API\nesi.evetech.net"]
        J["SSO\nlogin.eveonline.com"]
    end

    A & B & C & D -->|"stdio / MCP protocol"| E
    E --> G
    G --> H
    F -->|"tokens.json"| G
    G -->|"HTTPS + JWT Bearer"| I
    F -->|"PKCE / Auth Code flow"| J

OAuth2 Authentication Flow

sequenceDiagram
    participant U as You
    participant CLI as cli.py
    participant Browser as Browser
    participant SSO as EVE SSO
    participant ESI as ESI API

    U->>CLI: python cli.py login
    CLI->>Browser: Open auth URL (PKCE challenge)
    Browser->>SSO: EVE login + scope approval
    SSO->>CLI: Redirect โ†’ localhost:8182/callback?code=...
    CLI->>SSO: POST /token (exchange code)
    SSO->>CLI: access_token + refresh_token
    CLI->>CLI: Store encrypted in tokens.json
    Note over CLI,ESI: All future requests auto-refresh token
    CLI->>ESI: GET /characters/{id}/
    ESI->>CLI: Character data โœ“

Prerequisites

  • Python 3.11+

  • An EVE Online account

  • A registered EVE developer application (free โ€” takes 2 minutes at developers.eveonline.com)


Installation

git clone https://github.com/yourname/eve-esi-tool
cd eve-esi-tool
pip install -e .

Step 1 โ€” Register an EVE Application

  1. Go to developers.eveonline.com โ†’ sign in โ†’ Applications โ†’ Create Application

  2. Set Connection Type โ†’ Authentication & API Access

  3. Set Callback URL โ†’ http://localhost:8182/callback

  4. Add whichever ESI scopes you want (see Scopes Reference below)

  5. Copy your Client ID and optionally Client Secret

PKCE vs Secret: If you omit client_secret from config.yaml, the tool uses PKCE (safer for desktop apps). If you include it, it uses the standard Authorization Code flow with Basic Auth.


Step 2 โ€” Configure

cp config.example.yaml config.yaml

Edit config.yaml:

eve_sso:
  client_id: "YOUR_CLIENT_ID_HERE"
  client_secret: "YOUR_SECRET_HERE"   # optional โ€” remove for PKCE-only
  callback_url: "http://localhost:8182/callback"
  scopes:
    - "esi-skills.read_skills.v1"
    - "esi-skills.read_skillqueue.v1"
    - "esi-characters.read_blueprints.v1"
    - "esi-assets.read_assets.v1"
    - "esi-wallet.read_character_wallet.v1"
    - "esi-fittings.read_fittings.v1"
    - "esi-fittings.write_fittings.v1"
    - "esi-markets.read_character_orders.v1"
    - "esi-industry.read_character_jobs.v1"
    - "esi-location.read_location.v1"
    - "esi-location.read_ship_type.v1"
    - "esi-clones.read_clones.v1"
    - "esi-clones.read_implants.v1"
    - "esi-contracts.read_character_contracts.v1"
    - "esi-universe.read_structures.v1"

token_storage:
  path: "tokens.json"

Step 3 โ€” Log In

python cli.py login

A browser window opens for EVE SSO. After you approve, your tokens are saved to tokens.json. Run this once per character. You can authenticate multiple characters โ€” all tools accept an optional character_id parameter.


CLI Reference

python cli.py login    # Authenticate a character via EVE SSO
python cli.py chars    # List all authenticated characters
python cli.py info     # Show character info (corp, alliance, etc.)
python cli.py skills   # Show skill summary (total SP, top skills)
python cli.py wallet   # Show ISK wallet balance
python cli.py queue    # Show skill training queue

Step 4 โ€” Connect to Your AI Tool

The MCP server uses stdio transport โ€” the AI client launches it as a subprocess and communicates over stdin/stdout.

Augment Code (VS Code)

Open your VS Code user settings (Ctrl+Shift+P โ†’ "Preferences: Open User Settings (JSON)") and add:

{
  "augment.advanced": {
    "mcpServers": {
      "eve-esi": {
        "command": "python",
        "args": ["C:/path/to/eve-esi-tool/mcp_server.py"],
        "cwd": "C:/path/to/eve-esi-tool"
      }
    }
  }
}

Then reload VS Code (Ctrl+Shift+P โ†’ "Developer: Reload Window"). The EVE ESI tools will be available in Agent mode automatically.

Windows tip: Use forward slashes / or double backslashes \\ in the path.


Claude Desktop

Edit %APPDATA%\Claude\claude_desktop_config.json on Windows, or ~/Library/Application Support/Claude/claude_desktop_config.json on macOS. Create the file if it doesn't exist:

{
  "mcpServers": {
    "eve-esi": {
      "command": "python",
      "args": ["/path/to/eve-esi-tool/mcp_server.py"],
      "cwd": "/path/to/eve-esi-tool"
    }
  }
}

Restart Claude Desktop. You'll see a ๐Ÿ”จ hammer icon in the chat input bar when MCP tools are loaded. Click it to see all available tools.

Enable developer mode: In Claude Desktop โ†’ Settings โ†’ Developer โ†’ Enable Developer Mode to see the config file path for your OS.


Cursor

Add to .cursor/mcp.json in your project root, or ~/.cursor/mcp.json globally:

{
  "mcpServers": {
    "eve-esi": {
      "command": "python",
      "args": ["/path/to/eve-esi-tool/mcp_server.py"],
      "cwd": "/path/to/eve-esi-tool"
    }
  }
}

Enable MCP in Cursor Settings โ†’ Features โ†’ MCP โ†’ Enable MCP.


Claude Code (CLI)

# Add the server
claude mcp add eve-esi python /path/to/eve-esi-tool/mcp_server.py

# Or add with working directory
claude mcp add eve-esi --cwd /path/to/eve-esi-tool python mcp_server.py

# Verify it's registered
claude mcp list

Available MCP Tools

mindmap
  root((EVE ESI\nMCP Tools))
    Character
      list_authenticated_characters
      set_active_character
      get_character_info
      get_character_location
      get_character_ship
      get_character_status
    Skills
      get_skills_summary
      get_skill_queue
      get_character_attributes
      get_active_implants
    Assets
      get_assets_list
      search_assets
      get_assets_summary
    Wallet
      get_wallet_balance
      get_wallet_journal
    Fittings
      get_ship_fittings
      save_ship_fitting
    Market
      get_market_orders
      check_item_price
      get_blueprints_list
      get_industry_jobs_list
    Universe
      lookup_item_type
      search_item_type
      lookup_solar_system
      resolve_eve_names
    Navigation
      plan_route
    Hauling
      find_valuables_to_haul
    Fitting Analysis
      get_ship_fit_stats
      compare_ship_fits
      get_fit_required_skills
      check_fit_readiness
    Cross-Character
      get_all_characters_status
      compare_skills_across_characters
      compare_wallets

Character & Status

Tool

Description

list_authenticated_characters

List all characters with location, ship, wallet, and active status

set_active_character

Set which character tools default to when character_id is omitted

get_character_info

Name, corp, alliance, birthday, security status

get_character_location

Current solar system

get_character_ship

Ship currently flying

get_character_status

One-call snapshot: location + ship + wallet balance

Skills

Tool

Description

get_skills_summary

Total SP, unallocated SP, all trained skills

get_skill_queue

Skills in queue with finish times

get_character_attributes

Int/Mem/Per/Wil/Cha + remap availability

get_active_implants

Implants currently plugged in

Assets & Wallet

Tool

Description

get_assets_list

All owned items with location/quantity

search_assets

Search assets by item type name

get_assets_summary

Assets grouped by station with ISK values

get_wallet_balance

ISK balance

get_wallet_journal

Recent wallet transactions

Fittings & Market

Tool

Description

get_ship_fittings

All saved fittings in-game

save_ship_fitting

Save a new fitting to the game โœ๏ธ

get_market_orders

Character's active sell/buy orders

check_item_price

Best buy/sell prices in any region (default: Jita)

get_blueprints_list

All blueprints with ME/TE/runs info

get_industry_jobs_list

Active/completed manufacturing & research jobs

Universe & Navigation

Tool

Description

lookup_item_type

Full type info + dogma attributes for any item ID

search_item_type

Find item IDs by name

lookup_solar_system

System info (security, planets, stargates)

resolve_eve_names

Convert any EVE IDs โ†’ names

plan_route

Multi-system route planner with nearest-neighbour optimization

Hauling

Tool

Description

find_valuables_to_haul

Scan assets for small/valuable items, plan pickup route with pricing

Fitting Analysis

Tool

Description

get_ship_fit_stats

Parse an EFT fit โ†’ full stats (defense, fitting, nav, cap, mining, cargo)

compare_ship_fits

Side-by-side comparison of two EFT fits with deltas

get_fit_required_skills

Extract all skills required to fly a given EFT fit

check_fit_readiness

Check which characters can fly a fit and what skills they're missing

Cross-Character

Tool

Description

get_all_characters_status

Location, ship, and wallet for ALL authenticated characters

compare_skills_across_characters

Compare specific skills (or total SP) across all characters

compare_wallets

All wallet balances + total ISK across accounts

โœ๏ธ save_ship_fitting is the only tool that writes to your account. All others are read-only.


Example Conversations

Once connected, you can ask natural language questions:

"What ship is my character flying and where are they?"
"Show me my top 10 most valuable assets"
"What skills am I training and when does the queue finish?"
"Check the Jita price for a Raven Navy Issue"
"Do I have any active industry jobs?"
"What are my saved fittings for a Rifter?"
"Suggest a solo PvP fit for my Caldari Navy Hookbill based on my skills"
"How much would I make if I sold all my blueprints in Jita?"
"Compare my Covetor fit to a Hulk fit โ€” which is better for moon mining?"
"What skills do I need to fly this Hulk fit?" (paste EFT)
"Which of my characters can fly this fit and what are they missing?"
"Give me a status update on all my characters"
"Compare Mining Barge and Astrogeology skills across all my alts"
"Find all my valuable items scattered around and plan a pickup route back to Jita"

Multi-Character Support

You can authenticate multiple EVE characters. Run python cli.py login once per character โ€” all tokens are stored in tokens.json.

# Log in additional characters (run once per character)
python cli.py login

# List all authenticated characters
python cli.py chars

Active Character

Use set_active_character to choose which character tools default to when character_id is omitted. If no active character is set, the first authenticated character is used.

All individual tools also accept an optional character_id parameter for ad-hoc queries on a specific alt.

Cross-Character Tools

These tools operate on all authenticated characters at once โ€” no need to query them one by one:

  • get_all_characters_status โ€” Location, ship, and wallet for everyone in one call

  • compare_skills_across_characters โ€” Compare specific skills or total SP side-by-side

  • compare_wallets โ€” All wallet balances + fleet total ISK

  • check_fit_readiness โ€” Check which characters can fly a given fit and what they're missing


Project Structure

eve-esi-tool/
โ”œโ”€โ”€ mcp_server.py          # MCP server โ€” 34 tools for AI agents
โ”œโ”€โ”€ cli.py                 # Command-line interface
โ”œโ”€โ”€ config.example.yaml    # Config template
โ”œโ”€โ”€ config.yaml            # Your config (not committed)
โ”œโ”€โ”€ tokens.json            # OAuth tokens (not committed)
โ”œโ”€โ”€ scripts/               # Temporary/ad-hoc scripts (auto-cleaned)
โ”œโ”€โ”€ eve_esi/
โ”‚   โ”œโ”€โ”€ auth.py            # OAuth2 SSO + PKCE flow + token storage
โ”‚   โ”œโ”€โ”€ client.py          # ESI HTTP client with auto token refresh
โ”‚   โ”œโ”€โ”€ config.py          # Config loading (YAML)
โ”‚   โ””โ”€โ”€ endpoints/
โ”‚       โ”œโ”€โ”€ assets.py          # Character assets
โ”‚       โ”œโ”€โ”€ characters.py      # Character info, location, ship
โ”‚       โ”œโ”€โ”€ fitting_analysis.py # EFT parsing, stats, comparison, skill requirements
โ”‚       โ”œโ”€โ”€ fittings.py        # Ship fittings CRUD
โ”‚       โ”œโ”€โ”€ hauling.py         # Asset analysis & pickup-run planner
โ”‚       โ”œโ”€โ”€ market.py          # Orders, prices, blueprints, industry
โ”‚       โ”œโ”€โ”€ navigation.py      # Route planning & multi-stop optimization
โ”‚       โ”œโ”€โ”€ skills.py          # Skills, queue, attributes, implants
โ”‚       โ”œโ”€โ”€ universe.py        # Type info, system info, name resolution
โ”‚       โ””โ”€โ”€ wallet.py          # Wallet balance and journal
โ””โ”€โ”€ CLAUDE.md              # Agent instructions (Claude Code / Cursor)

Scopes Reference

Scope

Enables

esi-skills.read_skills.v1

get_skills_summary, compare_skills_across_characters, check_fit_readiness

esi-skills.read_skillqueue.v1

get_skill_queue, get_character_attributes

esi-clones.read_implants.v1

get_active_implants

esi-assets.read_assets.v1

get_assets_list, search_assets, get_assets_summary, find_valuables_to_haul

esi-wallet.read_character_wallet.v1

get_wallet_balance, get_wallet_journal, compare_wallets

esi-fittings.read_fittings.v1

get_ship_fittings

esi-fittings.write_fittings.v1

save_ship_fitting

esi-markets.read_character_orders.v1

get_market_orders

esi-characters.read_blueprints.v1

get_blueprints_list

esi-industry.read_character_jobs.v1

get_industry_jobs_list

esi-location.read_location.v1

get_character_location, get_character_status, get_all_characters_status

esi-location.read_ship_type.v1

get_character_ship, get_character_status, get_all_characters_status

esi-contracts.read_character_contracts.v1

Future: contract tools

esi-universe.read_structures.v1

Asset locations in player structures

Note: Fitting analysis tools (get_ship_fit_stats, compare_ship_fits, get_fit_required_skills) and universe/navigation tools (plan_route, lookup_item_type, etc.) use public ESI endpoints and don't require any scopes.


Security Notes

  • tokens.json and config.yaml are excluded from git via .gitignore

  • Tokens are stored locally โ€” never sent to any third party

  • The MCP server only runs when your AI client is active

  • All ESI calls go directly to esi.evetech.net over HTTPS

  • The only write operation is save_ship_fitting โ€” no ISK or items can be moved


Troubleshooting

No authenticated characters error

python cli.py login   # run this first

400 Bad Request during login

  • Make sure your callback_url in config.yaml exactly matches what you set in the EVE developer portal

MCP tools not showing in Augment/Claude

  • Check that the command path points to the correct Python executable

  • Make sure you've run pip install -e . in the project directory

  • Reload VS Code / restart Claude Desktop after editing the config

Scope errors on specific tools

  • Re-run python cli.py login after adding new scopes to config.yaml

  • Make sure the new scopes are also added to your EVE developer application


Built with FastMCP ยท ESI data from EVE Online ESI

-
security - not tested
A
license - permissive license
-
quality - not tested

Resources

Unclaimed servers have limited discoverability.

Looking for Admin?

If you are the server author, to access and configure the admin panel.

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/Berman510/EOE_MCP'

If you have feedback or need assistance with the MCP directory API, please join our Discord server