MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Code & DevOps

Rengi Forge

Gamedev tools for AI agents: level design, renders, sprites, GLB optimizer. Pay per call with x402.

Checks passed
10 / 22

4 failed · 8 not measured

Median response
233 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
43

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
220
Publisher identityCan the publisher be traced to its source?
222

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 233 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name rengi-forge.

  • Pass
    Lists tools

    tools/list returned 43 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 233 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 233 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    123 of 310 parameters have a description (40%). The bar is 80%.

  • Fail
    Safety hints

    43 tools set neither readOnlyHint nor destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Not measured
    Website matches publisher

    This namespace is not a reverse domain, so the website comparison does not apply.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Fail
    Repo owner matches

    The GitHub repository owner does not match the namespace login.

  • Pass
    Recently updated

    Updated 2026-10-20T10:07:30.814718Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using Rengi Forge

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http rengi-forge https://rengi.dev/mcp

Capabilities

Tools 43

asset_render_sprites

Transparent isometric sprite sheet, 4 or 8 directions in one row (south first, clockwise), with frame JSON. Price: $0.40 USDC via x402, charged only on success. Part of Asset render: Pictures of a 3D model for agents that cannot see: catalog views, a turntable GIF, and isometric sprite sheets for 2.5D games.

Discovered
asset_render_turntable

Render a GLB model as a looping turntable GIF, one full revolution, plus mesh stats. Price: $0.25 USDC via x402, charged only on success. Part of Asset render: Pictures of a 3D model for agents that cannot see: catalog views, a turntable GIF, and isometric sprite sheets for 2.5D games.

Discovered
asset_render_views

Render a GLB model to four PNG views (three-quarter, front, side, top) for thumbnails and previews, plus mesh stats and size. Price: $0.10 USDC via x402, charged only on success. Part of Asset render: Pictures of a 3D model for agents that cannot see: catalog views, a turntable GIF, and isometric sprite sheets for 2.5D games.

Discovered
audio_tools_beats

Beat map of a song for rhythm games and music-synced effects: BPM and tempo changes, beats, bar lines, kick / snare / hat hits, and easy, normal and hard note charts on the grid, as JSON. Price: $0.05 USDC via x402, charged only on success. Part of Audio tools: Make generated or recorded sounds game-ready: trim silence and match loudness (LUFS with a true-peak ceiling), seamless loops for music and ambience with loop points, and SFX variations.

Discovered
audio_tools_clean

Trim silence, normalize loudness to a LUFS target with a -1 dBTP ceiling, add anti-click fades and convert (ogg, wav, mp3; mono for SFX). Returns the file, a waveform and measured stats. Price: $0.05 USDC via x402, charged only on success. Part of Audio tools: Make generated or recorded sounds game-ready: trim silence and match loudness (LUFS with a true-peak ceiling), seamless loops for music and ambience with loop points, and SFX variations.

Discovered
audio_tools_loop

Turn music or ambience into a seamless loop: cuts at zero crossings and crossfades the end into the start with an equal-power curve. Returns the loop, a 3x preview and loop points in samples. Price: $0.10 USDC via x402, charged only on success. Part of Audio tools: Make generated or recorded sounds game-ready: trim silence and match loudness (LUFS with a true-peak ceiling), seamless loops for music and ambience with loop points, and SFX variations.

Discovered
audio_tools_variations

Make 2-12 variations of one sound effect with small pitch and volume changes, so repeated footsteps or hits do not sound copy-pasted. Returns each file and a ZIP. Price: $0.10 USDC via x402, charged only on success. Part of Audio tools: Make generated or recorded sounds game-ready: trim silence and match loudness (LUFS with a true-peak ceiling), seamless loops for music and ambience with loop points, and SFX variations.

Discovered
audio_tools_voice

Make a voice recording or TTS take game-ready: rumble high-passed, noise reduced against the measured floor, sibilance tamed, dialogue loudness (-18 LUFS) with a -1 dBTP ceiling, and a long take split into one file per phrase with a CSV cue sheet. Price: $0.10 USDC via x402, charged only on success. Part of Audio tools: Make generated or recorded sounds game-ready: trim silence and match loudness (LUFS with a true-peak ceiling), seamless loops for music and ambience with loop points, and SFX variations.

Discovered
font_tools_bitmap

Bitmap font from a TTF/OTF: atlas PNG, BMFont .fnt with kerning, JSON and a preview of a sample line. Pixel mode snaps glyphs to whole pixels with no antialiasing. Price: $0.10 USDC via x402, charged only on success. Part of Font tools: Turn a TTF/OTF font into a bitmap font for games: crisp pixel-perfect glyphs for pixel art or smooth antialiased ones, Latin and Cyrillic, optional outline, atlas PNG plus AngelCode BMFont .fnt with kerning (Unity, Godot, Phaser, LibGDX) and JSON..

Discovered
forge_help

What Rengi Forge offers, prices and how payment works. Free.

Discovered
glb_optimizer_colliders

Collision for a model: a set of convex hulls that hug the shape (V-HACD), ready for Godot (-convcolonly nodes), Unreal (UCX_ names) and Unity (convex MeshColliders via an editor script), plus hulls.json for any engine and a see-through overlay to check. Price: $0.15 USDC via x402, charged only on success. Part of GLB optimizer: Make a GLB small and fast for the web or mobile: dedup, instance, join, weld, simplify, resize and re-encode textures, meshopt or draco compression.

Discovered
glb_optimizer_convert

Convert FBX, OBJ (zip with .mtl and textures), glTF (zip), STL, PLY, DAE or 3DS to one GLB: Y-up, in meters, materials and FBX animations kept. Returns the GLB, a report, a validator pass and a preview render. Price: $0.15 USDC via x402, charged only on success. Part of GLB optimizer: Make a GLB small and fast for the web or mobile: dedup, instance, join, weld, simplify, resize and re-encode textures, meshopt or draco compression.

Discovered
glb_optimizer_inspect

Inspect a GLB without changing it: triangles, draw calls, materials, texture memory, animations, glTF validator errors, and concrete suggestions to make it lighter. Price: $0.05 USDC via x402, charged only on success. Part of GLB optimizer: Make a GLB small and fast for the web or mobile: dedup, instance, join, weld, simplify, resize and re-encode textures, meshopt or draco compression.

Discovered
glb_optimizer_lod

Generate a LOD chain from a GLB (default 100/50/25/10% of triangles) with locked borders so UV seams and silhouettes hold; one GLB per level, a side-by-side render and Unity LODGroup transition heights. Price: $0.20 USDC via x402, charged only on success. Part of GLB optimizer: Make a GLB small and fast for the web or mobile: dedup, instance, join, weld, simplify, resize and re-encode textures, meshopt or draco compression.

Discovered
glb_optimizer_optimize

Shrink a GLB (up to 10 MB) for web or mobile: dedup, join draw calls, gentle simplify, textures to WebP at a max size, meshopt or Draco compression; before/after renders, size report and loader notes for three.js and Unity. Price: $0.20 USDC via x402, charged only on success. Part of GLB optimizer: Make a GLB small and fast for the web or mobile: dedup, instance, join, weld, simplify, resize and re-encode textures, meshopt or draco compression.

Discovered
glb_optimizer_optimize_large

Shrink a large GLB (up to 50 MB) for web or mobile, same pipeline as optimize: dedup, join, simplify, WebP textures, meshopt or Draco. Price: $0.50 USDC via x402, charged only on success. Part of GLB optimizer: Make a GLB small and fast for the web or mobile: dedup, instance, join, weld, simplify, resize and re-encode textures, meshopt or draco compression.

Discovered
leaderboard_boards

Create a board with 100,000 submissions and 365 days; returns keys and a ready JS snippet. Price: $1.00 USDC via x402, charged only on success. Part of Leaderboard: A leaderboard backend for a game in one paid call, no signup: buy a board (100,000 submissions, 1 year), get a board id, a submit key for the game client and an admin key.

Discovered
leaderboard_topup

Add 100,000 submissions and 365 days to a board. Price: $1.00 USDC via x402, charged only on success. Part of Leaderboard: A leaderboard backend for a game in one paid call, no signup: buy a board (100,000 submissions, 1 year), get a board id, a submit key for the game client and an admin key.

Discovered
level_design_catalog

Ingest your prop catalog: footprint, height, pivot and category computed from each GLB. Returns a catalogId for place. Price: $0.50 USDC via x402, charged only on success. Part of Level design: Level dressing for 3D games.

Discovered
level_design_navmesh

Bake a navmesh for your agent size from a level GLB and find unreachable areas, passages that barely fit, and walkable area per region; top-view map and the navmesh as OBJ. Price: $0.05 USDC via x402, charged only on success. Part of Level design: Level dressing for 3D games.

Discovered
level_design_place

Dress a level: placements for every zone, previews and a 3D viewer link. Price: $1.00 USDC via x402, charged only on success. Part of Level design: Level dressing for 3D games.

Discovered
level_design_place_2d

Fill a 2D tilemap: terrain with proper corner transitions, decorations, obstacles and multi-tile stamps; Tiled .tmj, Unity Tilemap JSON and a preview. Price: $1.00 USDC via x402, charged only on success. Part of Level design: Level dressing for 3D games.

Discovered
level_design_revise

Change a placed level by instruction or structured zone edits: denser or sparser, other assets, remove a kind of prop; untouched zones keep their exact transforms. It cannot cut an empty area inside a zone or move one object: for that, add a keep-clear zone to the layout and place again. Price: $0.50 USDC via x402, charged only on success. Part of Level design: Level dressing for 3D games.

Discovered
level_design_revise_2d

Change a 2D map by instruction or zone edits; untouched zones keep their tiles. Price: $0.30 USDC via x402, charged only on success. Part of Level design: Level dressing for 3D games.

Discovered
playtest_run

Play a web game (URL or ZIP build) as on a PC and as on a weak phone: errors, missing files, black or frozen screen, load time, draw calls, textures, shader stalls, memory leaks, build weight, video and screenshots. Price: $0.25 USDC via x402, charged only on success. Part of Playtest: Plays a web game in a real browser, as on a PC and as on a weak phone, and reports what an agent needs to fix: errors, missing files, a black or frozen screen, load time, draw calls, texture memory, shader stalls, memory leaks and build weight, with a video and screenshots of each pass.

Discovered
sprite_tools_autotile

Two terrain textures (grass over dirt, sand over water) to a full 47-tile autotile set with natural, seamless edges, outer and inner corners, plus ready rules: Tiled wang set, Godot 4 TileSet terrains, Unity Rule Tile (editor script), JSON, and a painted preview map. Price: $0.15 USDC via x402, charged only on success. Part of Sprite tools: 2D sprite jobs for games: cut sprites out of their background (exact for one-color backgrounds, AI for busy ones), turn animation videos into aligned sprite sheets, make normal maps for 2D lights, build 47-tile autotile sets with Tiled, Godot and Unity rules, slice a sheet into frames, pack frames into an atlas with TexturePacker and Unity metadata, and turn upscaled or AI-generated pixel art into real pixel art on its true grid with a limited palette..

Discovered
sprite_tools_inbetween

Smoother sprite animation: in-between frames from motion between your frames (4 frames to 8 or 12), pixel art stays crisp with no new colours, holds stay holds, loop seam included; sheet, JSON and a before/after GIF. Price: $0.05 USDC via x402, charged only on success. Part of Sprite tools: 2D sprite jobs for games: cut sprites out of their background (exact for one-color backgrounds, AI for busy ones), turn animation videos into aligned sprite sheets, make normal maps for 2D lights, build 47-tile autotile sets with Tiled, Godot and Unity rules, slice a sheet into frames, pack frames into an atlas with TexturePacker and Unity metadata, and turn upscaled or AI-generated pixel art into real pixel art on its true grid with a limited palette..

Discovered
sprite_tools_normal_map

Normal map for a sprite or sprite sheet, for 2D lights in Unity URP 2D and Godot: a rounded bevel from the silhouette plus surface detail, alpha kept, OpenGL or DirectX; a height map and a preview lit by a moving light. Price: $0.05 USDC via x402, charged only on success. Part of Sprite tools: 2D sprite jobs for games: cut sprites out of their background (exact for one-color backgrounds, AI for busy ones), turn animation videos into aligned sprite sheets, make normal maps for 2D lights, build 47-tile autotile sets with Tiled, Godot and Unity rules, slice a sheet into frames, pack frames into an atlas with TexturePacker and Unity metadata, and turn upscaled or AI-generated pixel art into real pixel art on its true grid with a limited palette..

Discovered
sprite_tools_pack

Pack frames into one atlas (MaxRects) with padding and edge extrusion; TexturePacker JSON and Unity JSON. Price: $0.05 USDC via x402, charged only on success. Part of Sprite tools: 2D sprite jobs for games: cut sprites out of their background (exact for one-color backgrounds, AI for busy ones), turn animation videos into aligned sprite sheets, make normal maps for 2D lights, build 47-tile autotile sets with Tiled, Godot and Unity rules, slice a sheet into frames, pack frames into an atlas with TexturePacker and Unity metadata, and turn upscaled or AI-generated pixel art into real pixel art on its true grid with a limited palette..

Discovered
sprite_tools_pixelate

Clean pixel art: find the true pixel grid, downscale to it, snap to a palette, hard alpha. Price: $0.10 USDC via x402, charged only on success. Part of Sprite tools: 2D sprite jobs for games: cut sprites out of their background (exact for one-color backgrounds, AI for busy ones), turn animation videos into aligned sprite sheets, make normal maps for 2D lights, build 47-tile autotile sets with Tiled, Godot and Unity rules, slice a sheet into frames, pack frames into an atlas with TexturePacker and Unity metadata, and turn upscaled or AI-generated pixel art into real pixel art on its true grid with a limited palette..

Discovered
sprite_tools_remove_bg

Cut a sprite, prop or character out of its background: exact keying for one-color backgrounds (text and holes too), AI segmentation for busy ones; clean edges with no halo, trimmed, with a pivot. AI mode handles one main subject, not text on photos. Price: $0.05 USDC via x402, charged only on success. Part of Sprite tools: 2D sprite jobs for games: cut sprites out of their background (exact for one-color backgrounds, AI for busy ones), turn animation videos into aligned sprite sheets, make normal maps for 2D lights, build 47-tile autotile sets with Tiled, Godot and Unity rules, slice a sheet into frames, pack frames into an atlas with TexturePacker and Unity metadata, and turn upscaled or AI-generated pixel art into real pixel art on its true grid with a limited palette..

Discovered
sprite_tools_slice

Cut a sprite sheet into frames by grid or by transparent gaps; frame PNGs plus a ZIP. Price: $0.05 USDC via x402, charged only on success. Part of Sprite tools: 2D sprite jobs for games: cut sprites out of their background (exact for one-color backgrounds, AI for busy ones), turn animation videos into aligned sprite sheets, make normal maps for 2D lights, build 47-tile autotile sets with Tiled, Godot and Unity rules, slice a sheet into frames, pack frames into an atlas with TexturePacker and Unity metadata, and turn upscaled or AI-generated pixel art into real pixel art on its true grid with a limited palette..

Discovered
sprite_tools_video_to_sheet

Turn an animation video or GIF (from Kling, Veo, Sora or a capture) into a sprite sheet: frames at your fps, background removed, every frame aligned to one box and pivot so it does not jitter, the best loop point, TexturePacker JSON, Godot SpriteFrames and a GIF preview. Price: $0.15 USDC via x402, charged only on success. Part of Sprite tools: 2D sprite jobs for games: cut sprites out of their background (exact for one-color backgrounds, AI for busy ones), turn animation videos into aligned sprite sheets, make normal maps for 2D lights, build 47-tile autotile sets with Tiled, Godot and Unity rules, slice a sheet into frames, pack frames into an atlas with TexturePacker and Unity metadata, and turn upscaled or AI-generated pixel art into real pixel art on its true grid with a limited palette..

Discovered
store_assets_icons

App icons from one square art: iOS 1024 with Contents.json, Android adaptive icon layers at every density plus legacy and Play Store 512, and web favicons with a manifest snippet. Preview with the masks launchers apply. Price: $0.10 USDC via x402, charged only on success. Part of Store assets: Release art from one key art: every Steam store and library capsule at the exact required size with your logo placed per Steam's rules (never on the Library Hero), and full icon sets for iOS, Android adaptive icons, Google Play and the web..

Discovered
store_assets_steam

Every Steam store and library capsule from one key art at the exact required sizes: logo composited per Steam rules, Library Hero without logo, separate transparent Library Logo, page background, a contact sheet and a ZIP. Price: $0.20 USDC via x402, charged only on success. Part of Store assets: Release art from one key art: every Steam store and library capsule at the exact required size with your logo placed per Steam's rules (never on the Library Hero), and full icon sets for iOS, Android adaptive icons, Google Play and the web..

Discovered
store_assets_steam_audit

Check a Steam store page against what Steam rewards: screenshots, trailer, short and long description, GIFs, languages, controller support, achievements, reviews, website; a score out of 100 and a fix for each gap. Price: $0.05 USDC via x402, charged only on success. Part of Store assets: Release art from one key art: every Steam store and library capsule at the exact required size with your logo placed per Steam's rules (never on the Library Hero), and full icon sets for iOS, Android adaptive icons, Google Play and the web..

Discovered
store_assets_stores

One key art and logo to the store images beyond Steam: itch.io cover 630x500, Google Play feature graphic 1024x500, Epic landscape 2560x1440 and portrait 1200x1600; gameplay screenshots fitted to Google Play 1920x1080 and App Store iPhone 6.9", 6.3" and iPad 13" sizes without stretching, no alpha where stores reject it. Price: $0.20 USDC via x402, charged only on success. Part of Store assets: Release art from one key art: every Steam store and library capsule at the exact required size with your logo placed per Steam's rules (never on the Library Hero), and full icon sets for iOS, Android adaptive icons, Google Play and the web..

Discovered
store_assets_trailer

A raw gameplay recording (up to 10 min) to a 16:9 Steam trailer, a 9:16 short and a store GIF: picks the action by motion and sound, skips menus and loading, hook first, cuts on the music's beat, vertical crop follows the action, -14 LUFS, optional end card; plus the edit list. Price: $0.40 USDC via x402, charged only on success. Part of Store assets: Release art from one key art: every Steam store and library capsule at the exact required size with your logo placed per Steam's rules (never on the Library Hero), and full icon sets for iOS, Android adaptive icons, Google Play and the web..

Discovered
texture_tools_atlas

Pack textures into one atlas with edge-filled gutters so mipmaps do not bleed; UV rects for bottom-left (Unity, OpenGL) and top-left (DirectX, Unreal) origins. Price: $0.05 USDC via x402, charged only on success. Part of Texture tools: Turn a picture into a game-ready material: seamless tiling without visible seams or light bands, PBR maps (normal for Unity and Unreal, height, roughness, AO) from one image, channel packing for Unreal ORM and Unity masks, and texture atlases with mip-safe gutters.

Discovered
texture_tools_pack

Pack grayscale maps into one texture for an engine preset: Unreal ORM, Unity URP metallic/smoothness, Unity HDRP mask map. Missing maps get sensible constants. Price: $0.05 USDC via x402, charged only on success. Part of Texture tools: Turn a picture into a game-ready material: seamless tiling without visible seams or light bands, PBR maps (normal for Unity and Unreal, height, roughness, AO) from one image, channel packing for Unreal ORM and Unity masks, and texture atlases with mip-safe gutters.

Discovered
texture_tools_pbr

PBR maps from one albedo image: normal (OpenGL for Unity/three.js and DirectX for Unreal), 16-bit height, roughness and ambient occlusion, plus a lit preview. Price: $0.15 USDC via x402, charged only on success. Part of Texture tools: Turn a picture into a game-ready material: seamless tiling without visible seams or light bands, PBR maps (normal for Unity and Unreal, height, roughness, AO) from one image, channel packing for Unreal ORM and Unity masks, and texture atlases with mip-safe gutters.

Discovered
texture_tools_seamless

Make a texture tile without visible seams: removes baked lighting, hides the seam along the path where the image already matches. Returns the tile and a 2x2 preview. Price: $0.10 USDC via x402, charged only on success. Part of Texture tools: Turn a picture into a game-ready material: seamless tiling without visible seams or light bands, PBR maps (normal for Unity and Unreal, height, roughness, AO) from one image, channel packing for Unreal ORM and Unity masks, and texture atlases with mip-safe gutters.

Discovered
vfx_review

Review one VFX clip (video or GIF) like a lead artist: frame strip, greyscale strip, energy curve, timing, white burn-out, contrast, flicker, loop seam, and scores with frame-tied fixes on rng-vfx's six qualities; optional reference to compare. Price: $0.20 USDC via x402, charged only on success. Part of VFX review: Reviews a game effect the way a lead VFX artist would: a numbered frame strip and a greyscale strip, the energy curve, measured timing (arrival, hold, dissipation), white burn-out, value contrast and flicker, and scores with frame-tied notes on the six qualities of rng-vfx.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected233 ms43