Facepunch API endpoints

05/07/2026 06:08 theminkman#1
I released this information at — 2026-04-17 19:12 in my discord server, I only saw 1 thread after my first release and it was on another forum. I have been pretty busy in real life so I have not really been that active on EPVP but I decided today to make a write-up about it.

It's no secret that Facepunch themselves are hiring in-house Anti Cheat programmers and even offer penetrator testers to help them through platforms like HackerOne

[Only registered and activated users can see links. Click Here To Register...]

They have been doing this for a while now, however I decided to make a MITM proxy running on a raspberry PI model B intercepting HTTP/HTTPS traffic and dumping everything Facepunch is actively grabbing through their endpoints and there is some very interesting information in these endpoints

The endpoints are
api.facepunch.com
rust-api.facepunch.com

Endpoint 1 (/api/public/feedback/report/)
This get sent when you F7 report someone ingame on any server
Code:
{
  "endpoint": "POST /api/public/feedback/report/",
  "params": {
    "public_key": "REDACTED"
  },
  "report": {
    "Subject": "[cheat] 1",
    "Message": "1",
    "Type": 2,
    "TargetReportType": "cheat",
    "TargetId": "REDACTED",
    "TargetName": "REDACTED",
    "TargetEntity": null,
    "UsersInRange": null,
    "AppInfo": {
      "UserName": "REDACTED",
      "UserId": "REDACTED",
      "GpuMem": "REDACTED",
      "Mem": "REDACTED",
      "Version": 3,
      "ServerAddress": "REDACTED",
      "ServerName": "REDACTED",
      "ServerVersion": "REDACTED",
      "Name": "REDACTED",
      "LevelName": "Procedural Map",
      "LevelPos": "REDACTED",
      "LevelRot": "REDACTED",
      "CpuCount": "REDACTED",
      "Cpu": "REDACTED",
      "Gpu": "REDACTED",
      "Os": "REDACTED",
      "Arch": "REDACTED",
      "MinutesPlayed": 3,
      "Image": null,
      "Build": {
        "Valid": true,
        "Build": {
          "Name": "Rust-Client-release",
          "Url": "https://build.facepunch.com/job/Rust-Client-release/24/",
          "Id": "24",
          "Node": "SVR-RUST-BS-03",
          "Number": "24",
          "Tag": "jenkins-Rust-Client-release-24"
        },
        "Date": 1776410850,
        "Scm": {
          "Comment": "",
          "Type": "PlasticScm",
          "Author": "",
          "ChangeId": "148916",
          "Date": "17/04/2026 08:27:30",
          "Repo": "rust_reboot",
          "Branch": "release"
        }
      }
    }
  },
  "userid": "REDACTED",
  "token": "REDACTED",
  "config": {
    "accessibility": {
      "allynametagcolour": "0",
      "buildingblockedzonecolour": "0",
      "clannametagcolour": "0",
      "disablemovementininventory": "False",
      "enemynametagcolour": "0",
      "healthbarcolour": "0",
      "holosightcolour": "0",
      "hungerbarcolour": "0",
      "hydrationbarcolour": "0"
    },
    "audio": {
      "master": "0",
      "game": "1",
      "ui": "1",
      "voices": "1",
      "musicvolume": "0",
      "musicvolumemenu": "0",
      "speakers": "2"
    },
    "graphics": {
      "fov": "90",
      "drawdistance": "500",
      "vsync": "0",
      "renderscale": "1",
      "shadowmode": "3",
      "lodbias": "0.7",
      "dlss": "-1",
      "dlaa": "False",
      "dof": "False",
      "bloom": "False",
      "motionblur": "False",
      "contactshadows": "False",
      "grassshadows": "False",
      "volumetric_clouds": "0",
      "screenmode": "1",
      "resolution": "6",
      "uiscale": "1"
    },
    "fps": {
      "limit": "240",
      "limitinbackground": "False",
      "limitinmenu": "False"
    },
    "input": {
      "sensitivity": "1",
      "ads_sensitivity": "1",
      "flipy": "False",
      "toggleads": "False",
      "toggleduck": "False",
      "alwayssprint": "False",
      "pushtotalk": "True"
    },
    "crosshair": {
      "color": "6",
      "style": "1",
      "dotsize": "1.7",
      "length": "7",
      "width": "2",
      "spacing": "1",
      "outline": "False",
      "dynamic_spacing": "True",
      "dynamic_visibility": "False"
    },
    "global": {
      "language": "en",
      "streamermode": "False",
      "showblood": "False",
      "richpresence": "False",
      "censornudity": "2",
      "perf": "5"
    }
  },
  "keybinds": {
    "tab": "inventory.toggle",
    "return": "chat.open",
    "space": "+jump",
    "1": "+slot1",
    "2": "+slot2",
    "3": "+slot3",
    "4": "+slot4",
    "5": "+slot5",
    "6": "+slot6",
    "7": "+holsteritem",
    "a": "+left",
    "b": "+gestures",
    "c": "~fov 30;fov 90",
    "d": "+right",
    "e": "+use;+nextskin",
    "f": "lighttoggle;+focusmap",
    "g": "+map",
    "h": "+hoverloot",
    "j": "clan.toggleclan",
    "m": "+firemode",
    "n": "inventory.examineheld",
    "p": "+pets",
    "q": "+prevskin;no_input",
    "r": "+reload",
    "s": "+backward",
    "t": "chat.open",
    "v": "+voice",
    "w": "+forward",
    "x": "swapseats",
    "y": "forward;sprint",
    "mouse0": "+attack",
    "mouse1": "+attack2",
    "mouse2": "+attack3",
    "mouse3": "+ping",
    "mouse4": "+hoverloot",
    "mousewheelup": "+invprev",
    "mousewheeldown": "+invnext",
    "leftshift": "+sprint",
    "leftcontrol": "+duck",
    "leftalt": "+altlook",
    "f1": "consoletoggle",
    "f2": "legacyconsoletoggle"
  }
}
Endpoint 2 (/api/public/analytics/rust/client)
Acts like a heartbeat packet
Code:
[2026-04-17T19:13:03.162044] POST /api/public/analytics/rust/client
CONTENT-TYPE: application/json; charset=utf-8
BODY: [
  {
    "Timestamp": "2026-04-17T17:13:00.2750410Z",
    "Data": {
      "type": "client_performance",
      "guid": "REDACTED",
      "environment": "release",
      "session_id": "REDACTED",
      "time_of_day": "625789745837330000",
      "connected_time": "639.3717914",
      "server_session_id": "REDACTED",
      "server_index": "1",
      "instanced_rendering": "false",
      "draw_count": "0",
      "current_texture_memory": "3429245901",
      "desired_texture_memory": "3411850789",
      "non_streaming_memory": "3090197520",
      "non_streaming_count": "4203",
      "streaming_upload_count": "1241",
      "streaming_texture_count": "8665",
      "streaming_loading_count": "0",
      "streaming_pending_count": "0",
      "streaming_renderer_count": "15767",
      "target_texture_memory": "3429245901",
      "total_texture_memory": "22157987341",
      "friends_menu_open_count": "0",
      "friends_messages_sent": "0",
      "friends_messages_received": "0",
      "friends_invites_sent": "0",
      "friends_invites_received": "0",
      "friends_invites_accepted": "0",
      "friends_discord_link_state": "none",
      "modified_convars": {
        "app.serverid": "REDACTED",
        "audio.master": "0",
        "audio.musicvolume": "0",
        "audio.musicvolumemenu": "0",
        "client.allowdiscordprovisionalaccount": "False",
        "client.hasdeclinedtutorial": "True",
        "client.headbob": "False",
        "client.hurtpunch": "False",
        "client.map_marker_autoname": "False",
        "copypaste.drawselection": "True",
        "debug.skyreflection": "True",
        "decor.quality": "40",
        "effects.antialiasing": "0",
        "effects.ao": "False",
        "effects.bloom": "False",
        "effects.creationeffects": "False",
        "effects.hurtoverlay": "False",
        "effects.hurtoverleyapplylighting": "False",
        "effects.lensdirt": "False",
        "effects.maxgibs": "0",
        "effects.motionblur": "False",
        "effects.shafts": "False",
        "effects.vignet": "False",
        "env.cloudrotation": "290.8498",
        "env.nightlight_debugcamera_enabled": "False",
        "gc.buffer": "4096",
        "gc.enabled": "True",
        "global.censornudity": "2",
        "global.perf": "5",
        "global.richpresence": "False",
        "global.showblood": "False",
        "graphics.drawdistance": "500",
        "graphics.fov": "90",
        "graphics.lodbias": "0.7",
        "graphics.resolution": "6",
        "graphics.screenmode": "1",
        "graphics.shaderlod": "2",
        "graphics.shadowmode": "3",
        "graphics.vm_fov_scale": "False",
        "graphics.volumetric_clouds": "0",
        "graphicssettings.anisotropicfiltering": "0",
        "graphicssettings.billboardsfacecameraposition": "False",
        "graphicssettings.particleraycastbudget": "256",
        "graphicssettings.pixellightcount": "0",
        "graphicssettings.shadowqualitypreset": "1",
        "graphicssettings.softparticles": "False",
        "grass.quality": "40",
        "mesh.quality": "75",
        "particle.quality": "40",
        "reports.exceptionreportmaxlength": "600",
        "server.tutorialenabled": "True",
        "terrain.quality": "40",
        "tree.meshes": "45",
        "tree.quality": "75",
        "water.quality": "0",
        "water.reflections": "0",
        "weather.clear_chance": "0.9",
        "weather.fog_chance": "0.03",
        "weather.overcast_chance": "0.03",
        "weather.rain_chance": "0.08",
        "weather.storm_chance": "0.02",
        "crosshair.color": "6",
        "crosshair.dynamic_visibility": "False",
        "crosshair.style": "1",
        "drone.maxcontrolrange": "600",
        "gametip.showgametips": "False",
        "ioentity.allow_on_boats": "True",
        "lookattooltip.crosshairmode": "2",
        "rgbeffects.brightness": "0",
        "rgbeffects.enabled": "False"
      },
      "command_line": "\"C:\\Program Files (x86)\\Steam\\steamapps\\common\\Rust\\RustClient.exe\" \"-logfile\" \"output_log.txt\" \"-timestamps\" \"-disable-gpu-skinning\" \"-graphics.dlss\" \"1-\" ",
      "lag_spike_count": "7",
      "lag_spike_no_gc_count": "6",
      "lag_spike_threshold": "0.1",
      "gc_count": "1",
      "ram_managed": "1508659200",
      "ram_total": "12696",
      "uptime": "724",
      "map_url": "REDACTED",
      "world_size": "REDACTED",
      "world_seed": "REDACTED",
      "world_ts": "REDACTED",
      "active_scene": "Procedural Map",
      "is_official": "true",
      "time_talking": "0",
      "language": "en",
      "graphics_settings": {
        "render_scale": "1",
        "nvidia_dlss": "-1",
        "shadow_quality_preset": "1",
        "shadow_quality": "1",
        "shadow_cascades": "2",
        "max_shadow_lights": "1",
        "water_quality": "0",
        "water_reflections": "0",
        "shader_level": "2",
        "draw_distance": "500",
        "shadow_distance": "180",
        "anisotropic_filtering": "1",
        "parallax_mapping": "0",
        "grass_displacement": "True",
        "grass_shadows": "False",
        "nvidia_reflex": "-1",
        "particle_quality": "40",
        "object_quality": "75",
        "tree_quality": "75",
        "max_tree_meshes": "45",
        "terrain_quality": "40",
        "grass_quality": "40",
        "decor_quality": "40",
        "anti_aliasing": "0",
        "ambient_occlusion": "False",
        "bloom": "False",
        "lens_dirt": "False",
        "motion_blur": "False",
        "sun_shafts": "False",
        "sharpen": "True",
        "vignet": "False",
        "occlusion_culling": "True",
        "contact_shadows": "False",
        "toggle_culling": "True",
        "fps_limit": "240",
        "vsync": "0",
        "fps_limit_background": "False",
        "fps_limit_menu": "False",
        "field_of_view": "90",
        "screen_x": "1920",
        "screen_y": "1080",
        "resolution_x": "1920",
        "resolution_y": "1080",
        "refresh_rate": "180",
        "fullscreen": "1",
        "physics_steps": "32",
        "physics_maxsteps": "2",
        "sensitivity": "1",
        "ui_scale": "1",
        "ui_inventory_player": "True",
        "audio_master": "0",
        "audio_music": "0",
        "audio_music_menu": "0",
        "audio_voices": "1",
        "audio_game": "1",
        "audio_instruments": "1",
        "audio_voice_props": "1",
        "audio_events": "1",
        "audio_speakers": "2",
        "encryption": "2"
      },
      "server_address": "REDACTED",
      "era": "None",
      "steam_id_hash": "REDACTED=",
      "hardware": {
        "device_name": "DESKTOP-REDACTED",
        "device_hash": "REDACTED=",
        "gpu_name": "REDACTED",
        "gpu_ram": "REDACTED",
        "gpu_vendor": "ATI",
        "gpu_version": "Direct3D 11.0 [level 11.1]",
        "gpu_shader_level": "50",
        "gpu_max_buffer_size": "REDACTED",
        "gpu_device_version": "Direct3D 11.0 [level 11.1]",
        "cpu_cores": "12",
        "max_compute_work_size": "1024",
        "max_compute_work_size_x": "1024",
        "max_compute_work_size_y": "1024",
        "max_compute_work_size_z": "64",
        "cpu_frequency": "3993",
        "gpu_max_texture_size": "16384",
        "cpu_name": "REDACTED",
        "system_memory": "REDACTED",
        "os": "REDACTED",
        "supports_compute_shaders": "True",
        "supports_async_compute": "False",
        "supports_async_gpu_readback": "True",
        "supports_3d_textures": "True",
        "supports_instancing": "True"
      },
      "application": {
        "unity": "2022.3.41x1",
        "changeset": "148916",
        "branch": "release",
        "network_version": "2623",
        "eos_sdk": "1.19.0.3-49960398",
        "eos_enabled": "true",
        "eos_supported_system_config": "18",
        "eos_tpm": "false",
        "eos_secureboot": "true",
        "eos_hvci": "false",
        "eos_iommu": "false"
      },
      "flush_ms": "1",
      "gpu_frametime_average_ms": "8.63498777281508",
      "total_time": "599.4445754",
      "frames": "66608",
      "frametime_average": "0.00899958826867643",
      "frametime_99_9": "0.0314012",
      "frametime_99": "0.0132436",
      "frametime_90": "0.0101887",
      "frametime_75": "0.0094682",
      "frametime_50": "0.0087782",
      "frametime_25": "0.0081794",
      "frametime_10": "0.0076851",
      "frametime_1": "0.0071787",
      "frametime_0_1": "0.0069931",
      "frametime_std_dev": "3.59987918210651",
      "inventory_total_time": "0.4319574",
      "inventory_frames": "38",
      "inventory_frametime_average": "0.0113673",
      "inventory_frametime_99_9": "0.0359414",
      "inventory_frametime_99": "0.0359414",
      "inventory_frametime_90": "0.0161867",
      "inventory_frametime_75": "0.0104014",
      "inventory_frametime_50": "0.0097672",
      "inventory_frametime_25": "0.0092997",
      "inventory_frametime_10": "0.0091147",
      "inventory_frametime_1": "0.0089021",
      "inventory_frametime_0_1": "0.0089021",
      "inventory_frametime_std_dev": "5.49019533108919",
      "gc_generations": "0",
      "gc_total": "38",
      "ping_average": "29",
      "ping_count": "120"
    }
  }
]
The analytics packet is an interesting one cause it contain a lot of information from user-mode from your computer and even game information such as keybinds, active console commands

Hardware packet
Code:
      "hardware": {
        "device_name": "DESKTOP-REDACTED",
        "device_hash": "REDACTED=",
        "gpu_name": "REDACTED",
        "gpu_ram": "REDACTED",
        "gpu_vendor": "ATI",
        "gpu_version": "Direct3D 11.0 [level 11.1]",
        "gpu_shader_level": "50",
        "gpu_max_buffer_size": "REDACTED",
        "gpu_device_version": "Direct3D 11.0 [level 11.1]",
        "cpu_cores": "12",
        "max_compute_work_size": "1024",
        "max_compute_work_size_x": "1024",
        "max_compute_work_size_y": "1024",
        "max_compute_work_size_z": "64",
        "cpu_frequency": "3993",
        "gpu_max_texture_size": "16384",
        "cpu_name": "REDACTED",
        "system_memory": "REDACTED",
        "os": "REDACTED",
        "supports_compute_shaders": "True",
        "supports_async_compute": "False",
        "supports_async_gpu_readback": "True",
        "supports_3d_textures": "True",
        "supports_instancing": "True"
      },
EOS information
Code:
      "application": {
        "unity": "2022.3.41x1",
        "changeset": "148916",
        "branch": "release",
        "network_version": "2623",
        "eos_sdk": "1.19.0.3-49960398",
        "eos_enabled": "true",
        "eos_supported_system_config": "18",
        "eos_tpm": "false",
        "eos_secureboot": "true",
        "eos_hvci": "false",
        "eos_iommu": "false"
      },
They also log stuff as, is_official, time_talking, graphics_settings, modified_convars

modified_convars is very interesting cause they could potentially tell that you are using an external/dma/internal cheat if you have example noclip enabled, godmode enabled, fov value changes

Modified Convars
Code:
      "modified_convars": {
        "app.serverid": "REDACTED",
        "audio.master": "0",
        "audio.musicvolume": "0",
        "audio.musicvolumemenu": "0",
        "client.allowdiscordprovisionalaccount": "False",
        "client.hasdeclinedtutorial": "True",
        "client.headbob": "False",
        "client.hurtpunch": "False",
        "client.map_marker_autoname": "False",
        "copypaste.drawselection": "True",
        "debug.skyreflection": "True",
        "decor.quality": "40",
        "effects.antialiasing": "0",
        "effects.ao": "False",
        "effects.bloom": "False",
        "effects.creationeffects": "False",
        "effects.hurtoverlay": "False",
        "effects.hurtoverleyapplylighting": "False",
        "effects.lensdirt": "False",
        "effects.maxgibs": "0",
        "effects.motionblur": "False",
        "effects.shafts": "False",
        "effects.vignet": "False",
        "env.cloudrotation": "290.8498",
        "env.nightlight_debugcamera_enabled": "False",
        "gc.buffer": "4096",
        "gc.enabled": "True",
        "global.censornudity": "2",
        "global.perf": "5",
        "global.richpresence": "False",
        "global.showblood": "False",
        "graphics.drawdistance": "500",
        "graphics.fov": "90",
        "graphics.lodbias": "0.7",
        "graphics.resolution": "6",
        "graphics.screenmode": "1",
        "graphics.shaderlod": "2",
        "graphics.shadowmode": "3",
        "graphics.vm_fov_scale": "False",
        "graphics.volumetric_clouds": "0",
        "graphicssettings.anisotropicfiltering": "0",
        "graphicssettings.billboardsfacecameraposition": "False",
        "graphicssettings.particleraycastbudget": "256",
        "graphicssettings.pixellightcount": "0",
        "graphicssettings.shadowqualitypreset": "1",
        "graphicssettings.softparticles": "False",
        "grass.quality": "40",
        "mesh.quality": "75",
        "particle.quality": "40",
        "reports.exceptionreportmaxlength": "600",
        "server.tutorialenabled": "True",
        "terrain.quality": "40",
        "tree.meshes": "45",
        "tree.quality": "75",
        "water.quality": "0",
        "water.reflections": "0",
        "weather.clear_chance": "0.9",
        "weather.fog_chance": "0.03",
        "weather.overcast_chance": "0.03",
        "weather.rain_chance": "0.08",
        "weather.storm_chance": "0.02",
        "crosshair.color": "6",
        "crosshair.dynamic_visibility": "False",
        "crosshair.style": "1",
        "drone.maxcontrolrange": "600",
        "gametip.showgametips": "False",
        "ioentity.allow_on_boats": "True",
        "lookattooltip.crosshairmode": "2",
        "rgbeffects.brightness": "0",
        "rgbeffects.enabled": "False"
      },