PWS MCP Server

PWS MCP Server connects an AI assistant to the save currently loaded in Pro Wrestling Sim.

Ask it to search your save, analyze your company, review contracts, recommend workers, plan storylines, or draft and apply complete show cards. Read-only questions do not change your save. Save-changing actions require confirmation and are validated by PWS.

Version 0.5.1 is a booking hotfix for the 0.5.0 base-game management update. It allows angle booking for workers whose opaque canDoAngles flag is 0 when the PWS booking UI itself allows them, and stops automatic plans from silently excluding those workers. The compatibility override exists only for the duration of the native angle-creation action and restores the saved flag immediately.

Table of contents

• What you need

• Claude Desktop compatibility

• Claude Desktop and Claude Code are separate

• Install the PWS plugin

• Connect Claude Desktop

• Connect Claude Code

• Connect Codex

• Connect another MCP client

• Test the connection

• Ideas to try

• Booking API notes

• Safety

• Troubleshooting

• Current limitations

• License

Related MCP server: WordPress MCP Server

What you need

• Windows and Pro Wrestling Sim

• The PWS MCP Server in-game plugin

• One supported local AI client

• An account or billing setup for that AI client

This plugin provides the connection to PWS, but it does not include an AI model or subscription. Claude Desktop's Code tab and Claude Code require an eligible paid Claude plan, or pay-as-you-go Claude API billing. Codex requires a ChatGPT account; the Free plan is supported, while paid ChatGPT plans provide more Codex usage. Usage limits from your chosen plan still apply.

Claude Desktop users do not need to install Node.js or edit a configuration file. The downloadable MCPB includes the Claude-side server and uses Claude Desktop's built-in Node runtime.

Node.js 18 or newer is still required for Codex, Claude Code, and other clients that run the Workshop copy of mcp-server.js directly.

Claude Desktop compatibility

The 0.4.0-beta.4 MCPB installs, enables, and launches on Claude Desktop for Windows, but regular Home chats do not receive its tools. Claude sends the MCP initialize request, waits 60 seconds, and disconnects before tool registration completes. Direct Claude Code and Codex connections continue to work, confirming this is an MCPB/Claude Desktop compatibility issue rather than a PWS bridge or save-data failure.

This was fixed in 0.4.0-beta.5 and is included in 0.4.0. The current server uses the official MCP SDK transport plus a dedicated entry point that starts correctly when Claude Desktop loads the extension through its Node UtilityProcess wrapper. A fresh Windows Home conversation exposed the PWS integration and returned the loaded save state. Claude Code, the Code tab, and Codex remain supported through the direct mcp-server.js path.

The release also includes the beta.5 booking hotfix: MCP-created and MCP-edited angle beats always persist all three PWS group arrays. This prevents single-person promos and other angles with unused groups from blocking show startup.

Claude Desktop and Claude Code are separate

• Claude Desktop installs the downloaded .mcpb extension. Updating the MCPB does not change standalone Claude Code.

• Claude Code ignores the MCPB and runs the exact mcp-server.js path stored in its MCP configuration. Inspect that path with claude mcp get pro-wrestling-sim.

• Enabling a Workshop or TEST plugin inside PWS does not automatically repoint Claude Code at the matching server file.

• After installing an MCPB or changing Claude Code's MCP path, fully restart the corresponding Claude client so it reloads the tool list.

• Workshop and TEST installs use stable folder names, so Claude Code and Codex paths do not change between versions. Once configured correctly, replace/deploy the files in that folder and restart the client; beta servers also report an explicit error if their version does not match the running in-game plugin.

Install the PWS plugin

Steam Workshop (recommended)

1. Subscribe to PWS MCP Server in the Steam Workshop.

2. Wait for Steam to finish downloading it.

3. Restart Pro Wrestling Sim.

4. Enable PWS MCP Server in the plugin list on the splash screen.

5. Load the save you want the AI to use.

The plugin works in the background and does not add an in-game page.

Manual GitHub installation

Use this only when you are not installing through Steam Workshop.

1. Open the matching GitHub release.

2. Download and extract pws-mcp-server-plugin-vVERSION.zip. For a beta playtest, use the separately named TEST plugin ZIP from that prerelease.

3. Copy the extracted plugin folder to %APPDATA%\ProWrestlingSimulator\plugins without changing its included folder name.

4. Restart PWS, enable only that plugin build, and load a save.

Use the packaged release asset, not GitHub's automatic repository source ZIP. The release asset contains the self-contained MCP server used by direct-path clients.

Connect Claude Desktop

Claude Desktop uses the one-click MCPB release. Do not edit claude_desktop_config.json.

0.4.0 compatibility result: its MCPB transport passed a regular Home-chat connection and live state read on Claude Desktop for Windows during the beta.5 release gate.

Account requirement: The Code tab uses Claude Code and requires an eligible paid Claude plan, or pay-as-you-go Claude API billing.

1. Open the latest GitHub release.

2. Download pws-mcp-server-vVERSION.mcpb from Assets.

3. In Claude Desktop, open Settings > Extensions > Advanced settings.

4. Select Install Extension and choose the downloaded .mcpb file.

5. Start PWS, enable the plugin, and load a save.

6. Start a new Home conversation and confirm that Pro Wrestling Sim is enabled.

The MCPB is for regular Home conversations. The Code tab uses Claude Code's separate MCP configuration and remains the direct-path fallback.

The MCPB installs only the Claude-side connection. The in-game plugin must still be installed through Steam Workshop or manually.

When upgrading, update both halves: Steam updates the in-game plugin, but it cannot update Claude Desktop's installed extension. Download and install the matching new .mcpb, then restart Claude Desktop.

For a privately distributed update, install the newer .mcpb through Install Extension using the same extension identity; uninstalling the previous version first is not normally required. If Claude Desktop does not show the new version after a full restart, uninstall/reinstall is the fallback.

If your Claude organization blocks custom desktop extensions, an owner or administrator must allow them. See Anthropic's local MCP server guide.

Connect Claude Code

Account requirement: Claude Code requires an eligible paid Claude plan, or pay-as-you-go Claude API billing.

Install Node.js 18 or newer, then run this in PowerShell for a normal Workshop installation. You can paste the block into PowerShell yourself or ask Claude Code to run it for you:

For the easiest setup, paste this request into Claude Code or Claude Desktop's Code tab:

Locate the installed PWS MCP Server mcp-server.js for the build I am actually using (Workshop, manual, or TEST). Configure the user-level Claude Code MCP server named pro-wrestling-sim to run it with Node, verify the saved entry with claude mcp get pro-wrestling-sim, and tell me the exact path you selected. Do not guess the Steam library or edit unrelated MCP entries.

Claude Code can run the commands itself. Restart the session afterward so it reloads the tool catalogue.

$server = 'C:\Program Files (x86)\Steam\steamapps\workshop\content\1157700\3780507815\plugins\pws-mcp-server\mcp-server.js'
claude mcp add --scope user pro-wrestling-sim -- node $server
claude mcp get pro-wrestling-sim

If Steam is installed in another library, change the path. For a manual GitHub installation:

$server = Join-Path $env:APPDATA 'ProWrestlingSimulator\plugins\pws-mcp-server\mcp-server.js'
claude mcp add --scope user pro-wrestling-sim -- node $server
claude mcp get pro-wrestling-sim

Check the connection with claude mcp list, claude mcp get pro-wrestling-sim, or /mcp inside Claude Code. The configured command must point at the build you intend to test. See the Claude Code MCP documentation for client details.

To test a prerelease without changing your Workshop setup, point Claude Code at the separately deployed TEST plugin:

claude mcp remove --scope user pro-wrestling-sim
$server = Join-Path $env:APPDATA 'ProWrestlingSimulator\plugins\pws-mcp-server-TEST\mcp-server.js'
claude mcp add --scope user pro-wrestling-sim -- node $server
claude mcp get pro-wrestling-sim

Restart Claude Code after changing the path; MCP tools are loaded at session start and do not hot-reload. Installing the prerelease MCPB does not update Claude Code. The TEST folder name is stable across beta versions, so later TEST deployments do not require another path change. To return to the Workshop release, remove the server again and rerun the normal Workshop command above.

Connect Codex

Account requirement: Codex requires a ChatGPT account. The ChatGPT Free plan supports Codex; paid plans provide higher usage limits.

Install Node.js 18 or newer. In Codex, open Settings > Plugins > Add > Add MCP Server, choose STDIO, and enter:

For the easiest setup, paste this request into Codex:

Locate the installed PWS MCP Server mcp-server.js for the build I am actually using (Workshop, manual, or TEST). Configure the user-level Codex MCP server named pro-wrestling-sim to run it with Node, verify the saved MCP entry, and tell me the exact path you selected. Do not guess the Steam library or edit unrelated MCP entries.

Codex can inspect the installed paths and run its MCP configuration command for you; approve the user-configuration change when prompted, then restart the MCP server/client.

Name:     pro-wrestling-sim
Command:  C:\Program Files\nodejs\node.exe
Argument: C:\Program Files (x86)\Steam\steamapps\workshop\content\1157700\3780507815\plugins\pws-mcp-server\mcp-server.js

If Steam uses another library, change the argument path. Restart the MCP server after saving. You can also configure it from PowerShell:

$server = 'C:\Program Files (x86)\Steam\steamapps\workshop\content\1157700\3780507815\plugins\pws-mcp-server\mcp-server.js'
codex mcp add pro-wrestling-sim -- node $server

See the official Codex MCP documentation for other installation methods.

The Workshop and TEST plugin folder names are stable across updates, so Codex only needs this path configured once. Restart the MCP server/client after deploying an update so it reloads the new tool catalogue.

Connect another MCP client

The server uses standard input/output (stdio). Configure your client to run:

node <complete path to mcp-server.js>

It is a local process, not a public HTTP service. Node.js 18 or newer is required outside the Claude Desktop MCPB.

Test the connection

Keep PWS open with a save loaded, then ask:

Connect to Pro Wrestling Sim and tell me the loaded save, current date, player promotion, company size, and cash balance.

Ask this from a regular Claude Desktop Home conversation. You can also run it from Claude Code/Code or Codex to verify the direct-path connection independently.

If the answer contains information from your save, setup is complete.

Ideas to try

• "Assess my company and identify my three biggest roster needs."

• "Recommend five affordable hires who fit those needs."

• "Review all contracts expiring in the next year."

• "Show me my champions, active storylines, and neglected wrestlers."

• "Draft my next show, explain every choice, and wait for approval."

• "Audit my next show and tell me exactly what must be fixed before I run it."

• "Review roster rotation and identify unused talent and people I am overusing."

• "Show my tag teams, brands, championships, commentary defaults, and television deals."

• "Find established tag teams on my roster that have not been registered with my company yet."

• "Review this contract, preview better terms, and wait for approval before changing it."

• "Create a storyline for these wrestlers and give it a clear name and premise."

• "Review my event series and recommend any recurrence, runtime, brand, or venue changes."

Booking API notes

Use titleIds: number[] to put championships on the line in a match. This is the only supported championship field; singular titleId and other unknown segment fields are rejected. Validation checks that each title is active, belongs to the player promotion, fits the show brand and match team size, and includes every reigning champion unless the title is vacant. Multiple titles are supported.

For Rumbles and other multi-person matches, entranceOrder must contain every participant contract ID exactly once. eliminationOrder requires an explicit winner and contains every other participant exactly once. Order is significant; the server writes PWS's native worker/contract/name objects and verifies the saved sequence without sorting it.

Match participants may have PWS worker type Wrestler or Occasional Wrestler. Angle-only types such as Staff, Personality, Referee, and Announcer remain ineligible for matches.

pws_apply_show_plan re-reads every created segment and verifies its participants, winner, runtime, title associations, and other requested booking fields. If verification fails, it reports failure and removes the new segments instead of returning a false success.

pws_update_segment previews by default. After reviewing before and proposed, call it again with the same changes, preview: false, and confirmed: true. The update uses a narrow field allowlist, one transaction, rollback, a post-save read, before/after output, and an audit entry. Applied results expose the persisted segment as after and retain segment as a compatibility alias. It does not expose general-purpose SQL writes.

Purpose-built tools are also available for removing a segment, setting an unfinished show's venue (with an optional recurring-event default), ending a storyline, adding or removing a storyline worker, releasing a worker, and vacating a championship. These operations preview by default, validate that the target belongs to the player company, require preview: false and confirmed: true, and re-read the save before reporting success. The advanced generic action tool no longer exposes these operations.

Version 0.5.0 extends that model to tag teams, brands, worker brand assignments, championships, event/brand commentary defaults, and network-deal cancellation. pws_audit_show and pws_analyze_worker_usage are read-only. Network discovery exposes the facts needed to compare reach and terms, but accepting and renegotiating offers remains in PWS because the game calculates negotiation-only values that plugins should not guess.

Tag teams have both a global PWS identity and a promotion-specific registration. pws_get_tag_teams returns teams already registered with the player company and established teams whose two members are contracted but which are not registered yet. pws_register_tag_team preserves the existing global team and experience, defaults to its established name, and optionally accepts a company-specific name.

Contract advice can now lead into pws_update_contract, which previews and verifies supported terms such as push, role, pay, expiry, exclusivity, creative control, development status, outside-booking permissions, and time off. pws_sign_worker is a purpose-built immediate signing action; it does not pretend to run PWS's offer/counter-offer negotiation. Storyline reads are paired with purpose-built creation and metadata editing. Championship reads are paired with verified awarding for singles, tag, and trios titles. Event-series reads are paired with editing and unfinished-show rescheduling; audit a moved show again because its new date can change worker availability and network scheduling.

Large rosters can be read page-by-page with offset and limit; use lean: true for a compact booking-oriented response. Availability excludes workers in rehab as well as injured, suspended, and time-off workers. Show planning and segment edits compare return dates with the target show's air date, so someone who recovers by a future show can be booked while missing or later return dates remain unavailable. Storyline reads accept storylineId and lean: true for inexpensive heat/status checks.

Use pws_get_venues to find a suitable building by geography and capacity. pws_get_show includes the assigned venue, capacity, type, recurring-event default, structured participant groups, opponent details, ringside workers, and angle subjects. If storyline progress appears to be missing after simulation, pws_diagnose_storyline_attribution reports recent in-lifetime segments that contained two or more storyline members but have no entity-normalized matching history row.

Version 0.4.0 adds preview-first tools for stable creation and membership, contract gimmicks and personas, worker promises, event-series creation/archiving, show scheduling, and show cancellation. Use pws_get_personas to browse a worker's native PWS alter egos and inspect their preferred gimmick, picture, mask, promotion restriction, and valid dates. pws_set_contract_persona changes only the player-company contract identity, so selecting Mankind or setting a custom ring name does not rename Mick Foley globally; selecting a native persona also applies its available preferred gimmick, picture, and mask as one verified presentation change. Optional picture and mask overrides allow the complete before-state returned by a preview to be restored exactly. Promotion-ineligible personas must first be made available with pws_set_persona_availability. Date-ineligible personas are rejected by default and require allowDateOverride=true for explicit creative-sandbox use; neither operation changes minDate or maxDate. PWS still supports one active presentation per contract at a time; it does not currently expose simultaneous per-match persona selection. pws_set_event_active safely archives or restores an event series without deleting its show history and blocks archiving while unfinished non-cancelled shows remain. Gimmicks are database-specific: use pws_get_gimmicks before assignment. pws_get_promises lists requests and obligations by deadline, while pws_respond_to_promise previews and transactionally applies the native accept/decline result, handled-email flag, and worker relationship effect.

The advanced sign_worker action accepts wagePerMonth, wagePerAppearance, and a day-based contractLength (-1 means indefinite). The older numeric wages alias remains compatible and maps to monthly pay for Written contracts or appearance pay otherwise. Successful signings are read back and every explicitly requested supported term is verified. This remains an advanced confirmed action because PWS's official action does not expose every negotiation perk; full offers, counters, renewals, and negotiation-layer awareness are planned after 0.4.0.

Use PLAYTESTING.md for release-candidate and regression testing. Current defects, deferred safety work, and future features are tracked in BACKLOG.md; release direction and completed beta gates remain in ROADMAP.md.

Safety

• The bridge listens only on the local computer and uses a random authentication token.

• Raw database access is read-only and result-limited.

• The plugin's internal database-write permission is used only by purpose-built, allowlisted transactional actions such as pws_update_segment; no raw SQL-write tool is exposed.

• Save-changing actions are validated and audited by PWS.

• A preview is not permission to apply a change. The assistant may set confirmed: true only after you explicitly approve that exact preview.

• General requests to inspect, test, or verify features do not authorize persistent or creative save changes.

• Show plans are drafts until you explicitly approve applying them.

• The assistant should never report a save change as successful unless PWS confirms it.

Back up important saves before using any plugin that can perform game actions. Never share %APPDATA%\ProWrestlingSimulator\mcp\pws-mcp-runtime.json; it contains a temporary local access token.

Troubleshooting

PWS bridge is offline

Start PWS, confirm the plugin is enabled, and load a save. If it was already open, restart PWS and then restart the AI client or extension.

Claude Desktop is not connected or has outdated tools

Beta.4 timed out during initialization in regular Home chats on Claude Desktop for Windows; beta.5 and 0.4.0 include the compatibility fix. Install the matching newest package, fully restart Claude Desktop, start a new Home conversation, and confirm Pro Wrestling Sim is enabled. If the tools remain absent, verify the installed extension version and inspect Claude Desktop's per-extension log before reinstalling. Never share %APPDATA%\ProWrestlingSimulator\mcp\pws-mcp-runtime.json; it contains a temporary local access token.

Claude Code is not connected or has outdated tools

Run claude mcp get pro-wrestling-sim and inspect the command shown. It must point to the intended Workshop, manual, or TEST mcp-server.js. Installing an MCPB has no effect on Claude Code. After correcting the path, fully restart Claude Code and check /mcp in the new session.

Workshop server file is missing

The default path is:

C:\Program Files (x86)\Steam\steamapps\workshop\content\1157700\3780507815\plugins\pws-mcp-server\mcp-server.js

If Steam uses another drive, locate its steamapps\workshop\content directory. This path check is not needed for Claude Desktop MCPB users.

Node is not recognized

This applies to Codex, Claude Code, and other direct stdio clients. Install Node.js LTS, restart Windows, and run node --version. Claude Desktop MCPB users do not need a separate Node installation.

An action is rejected

PWS validates game actions. Ask the assistant to explain the returned error and revise the request. Automatic show cards remain drafts until they pass validation and you approve them.

Current limitations

• Pro Wrestling Sim and its plugin API are Windows-only.

• Contract renewals remain advisory until PWS exposes a validated renewal action.

• Signing workers, creating storylines, and awarding titles still use the advanced confirmed-action interface until their complete PWS input contracts can be exposed as purpose-built preview tools. Signing validates and verifies the supported core terms, but PWS does not expose every negotiation perk through that action.

• Confirmed writes are not yet tied to a short-lived cryptographic preview receipt. Tools still default to preview, require explicit approval, revalidate the live target during apply, and verify the persisted result; receipt-based confirmation is deferred until after 0.4.0.

• Privately distributed MCPB updates must be downloaded and installed again from a newer GitHub Release.

License

Licensed under the Apache License 2.0. See LICENSE and NOTICE.