io.github.Argo-RPG-Platform/argo-mcp
REMOTE · MCP.ARGO.GAMES · 2 COMPONENTS
MCP server for Argo RPG Platform — connects AI assistants to campaign data via OAuth2
Available components
Last scanned (7 hours ago)
Scores higher than 98% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Entertainment and Games
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security89
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token. View diagnostics → Pass
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
- The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents. View diagnostics → Partial
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability76
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 5427 tokens (~83/item across 65 items; 65 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management98
- Stability check failed: schema churn in the 30 days we've observed: 1 tool removals, 0 breaking changes, 0 auth/transport breaks, 3 additions. See how to fix → Fail
Tool Coverage88
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 59% of tool parameters carry a description.Partial
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- All 6 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 66 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 23 Oct 26 0
- Tool “create_session_summary_mnemons” rewrote its description, which is the text the model reads security
- Tool “update_session_summary_mnemons” rewrote its description, which is the text the model reads security
- 19 Oct 26 −1
- Stability: pass → fail ▼ security
- A breaking change shipped without a version bump: still 1.1.0 ▼ security
- Tool “create_player_mnemons” was removed ▼ security
- Tool “create_mnemon_relationship” rewrote its description, which is the text the model reads security
- Tool “update_player_mnemons” rewrote its description, which is the text the model reads security
- Tool “update_npc_mnemons” rewrote its description, which is the text the model reads security
- Tool “describe_mnemon_types” rewrote its description, which is the text the model reads security
- Tool “create_npc_mnemons” rewrote its description, which is the text the model reads security
- Schema quality: excellent → good functional
- New tool “update_party_mnemons” functional
- New tool “update_faction_mnemons” functional
- New tool “create_faction_mnemons” functional
- 30 Sept 26 0
- Tool “create_quest_mnemons” rewrote its description, which is the text the model reads security
- Tool “update_quest_mnemons” rewrote its description, which is the text the model reads security
- Tool “get_mnemon” rewrote its description, which is the text the model reads security
- Tool “create_mnemon_relationship” rewrote its description, which is the text the model reads security
- New tool “set_quest_objective_state” functional
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 1 Sept 26 0
- Stability: fail → pass ▲ security
- 26 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://mcp.argo.games/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=mcp.argo.games | CN=WR3,O=Google Trust Services,C=US | 10 Oct 2026 | 8 Jan 2027 | RSA 2048 | SHA256-RSA | db0941ef737d5ec709921ed9686ad2a9 |
| SANs: mcp.argo.games | ||||||
| CN=WR3,O=Google Trust Services,C=US (CA) | CN=GTS Root R1,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | RSA 2048 | SHA256-RSA | 7ff005a91568d63abc22861684aa4b5a |
| CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 19 Jun 2020 | 28 Jan 2028 | RSA 4096 | SHA256-RSA | 77bd0d6cdb36f91aea210fc4f058d30d |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.argo.games. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| games. | present | 52900 | 8 | Verified |
| argo.games. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Enforced and verified
The endpoint asked for a token and published valid RFC 9728 metadata describing how to get one.
| Result | Enforced and verified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
WWW-Authenticate challenge Bearer resource_metadata="https://mcp.argo.games/.well-known/oauth-protected-resource", scope="campaign.read"
Bearer resource_metadata="https://mcp.argo.games/.well-known/oauth-protected-resource", scope="campaign.read"Protected resource metadata
| Document | https://mcp.argo.games/.well-known/oauth-protected-resource |
|---|---|
| Retrieved | Yes |
| Resource | https://mcp.argo.games |
| Authorisation server | https://mcp.argo.games |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.argo.games/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.argo.games/mcp | HTTPS enforced | 302 | https://mcp.argo.games/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
set_quest_objective_state Set quest objective state ~161
Tick, fail or reopen one objective of a quest by its id (get_mnemon's quest.objectives[].id), at any depth, without rewriting the quest. A GM sets any state. A player may only tick an objective they can see done, or undo that, and only while the quest's playersCanTick is on. Returns the quest as get_mnemon shows it, its progress recounted.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | Campaign ID. |
| entryId | string | yes | The quest: entryId (hex) or exact title. |
| objectiveId | string | yes | The objective, as get_mnemon's quest.objectives[].id names it. |
| state | string | yes | open, done or failed. |
| Name | Type | Req | Description |
|---|---|---|---|
| blocks | array | yes | – |
| entryId | string | yes | – |
| quest | object | – | Quests only: status, kind, objectives, reward chips and progress as this user may see them. |
| title | string | yes | – |
| type | string | yes | – |
| typeProperties | object | – | – |
No examples provided.
update_archive_mnemons Update archive mnemons ~36
Update typed/meta fields of Archive mnemons.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
update_campaign Update campaign ~118
Update a campaign's display name and/or description. Both fields optional — only supplied fields are changed; pass an empty string to clear the description. GMs and co-GMs can call this; rule-system swaps remain WebApp-only.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignDescription | string | – | New description (setting, tone, premise). Omit to leave unchanged. Pass an empty string to clear the existing description. |
| campaignId | string | yes | ID of the campaign to update. |
| campaignName | string | – | New display name. Omit to leave unchanged. |
| Name | Type | Req | Description |
|---|---|---|---|
| campaignDescription | string|null | – | – |
| campaignName | string | yes | – |
| coGameMasterIds | – | – | – |
| gameMasterId | string | yes | – |
| gameSystemSlug | string|null | – | – |
| id | string | yes | – |
| ruleSystem | string|null | – | – |
No examples provided.
update_custom_mnemons Update custom mnemons ~38
Update typed/meta fields of Custom-typed mnemons.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
update_faction_mnemons Update faction mnemons ~71
Update typed/meta fields of Faction mnemons (visibility, tags, members). An entry that is not a Faction fails its item. Does NOT modify content blocks — use update_mnemons_content for that.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
update_journal_mnemons Update journal mnemons ~37
Update typed/meta fields of Journal mnemons.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
update_location_mnemons Update location mnemons ~36
Update typed/meta fields of Location mnemons.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
update_lore_mnemons Update lore mnemons ~37
Update typed/meta fields of Lore mnemons.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
update_mnemons_content Update mnemon content ~237
Edit the body content of one or more mnemon entries. Each item carries an entryId and an ordered list of ops (append, insertAfter, replace, remove) applied atomically per entry. Op content is authored as Markdown (headings, lists, quotes, code fences, bold/italic, links) — do NOT send HTML. Mentions: @[label](mnemon:<entryId>). Images:  — upload the asset first; inline base64 / data: URLs are not accepted. Node addressing: get body-node ids from get_mnemon, then target them in replace/remove/insertAfter. A single op's Markdown may produce several nodes; new nodes get fresh server-generated ids (replace keeps the original id on the first new node). On a bad op (missing blockId, unknown op, etc.) the whole entry's batch is rejected with the failedOpIndex; no partial mutation per entry. See describe_mnemon_types.blockOps for the full vocabulary.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
update_npc_mnemons Update NPC mnemons ~104
Update typed/meta fields of NPC mnemons (visibility, tags, role, faction membership, etc.). An entry that is not an NPC fails its item; use update_faction_mnemons for a faction. Does NOT modify content blocks — use update_mnemons_content for that. Set visibility=PUBLIC on multiple NPCs in a single call by listing them in items[].
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
update_party_mnemons Update party mnemons ~73
Update typed/meta fields of PlayerParty mnemons — one per party in the campaign. PlayerParty mnemons cannot be created: the server makes one for each party. Who may edit an entry is decided by its own permissions.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
update_player_mnemons Update player mnemons ~75
Update typed/meta fields of Player mnemons — one per character in a party. Player mnemons cannot be created: the server makes one for each character that joins a party. Who may edit an entry is decided by its own permissions.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
update_quest_mnemons Update quest mnemons ~135
Update Quest mnemons. A field left out is left as it is: status, kind, playersCanTick, hook, the giverId / locationId / parentQuestId links (an empty string removes one), and objectives, rewards, background or gmNotes, each of which replaces its part of the quest and keeps the rest. Name existing objectives and chips by the ids get_mnemon's `quest` returns so they keep what the GM wrote under them. To tick one objective, use set_quest_objective_state.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
update_session Update session ~90
Reschedule a campaign session or edit its title/description. All fields optional. Owner-only on the backend.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | Campaign ID. |
| description | string | – | – |
| endAt | string | – | ISO-8601 instant. |
| sessionId | string | yes | Session ID. |
| startAt | string | – | ISO-8601 instant. |
| title | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| attendanceReplies | – | – | – |
| campaignId | string | yes | – |
| createdAt | string|null | – | – |
| createdByUserId | string|null | – | – |
| description | string|null | – | – |
| endAt | string|null | – | – |
| guildId | string|null | – | – |
| id | string | yes | – |
| invitedPartyIds | – | – | – |
| invitedUserIds | – | – | – |
| startAt | string | yes | – |
| title | string | yes | – |
| updatedAt | string|null | – | – |
No examples provided.
update_session_summary_mnemons Update session summary mnemons ~56
Update the recap, date, number and meta fields of SessionSummary mnemons. To change the story, use update_mnemons_content.
| Name | Type | Req | Description |
|---|---|---|---|
| campaignId | string | yes | – |
| items | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
How do I install the io.github.Argo-RPG-Platform/argo-mcp server?
io.github.Argo-RPG-Platform/argo-mcp is a hosted endpoint at https://mcp.argo.games/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp.argo.games
claude mcp add --transport http argo-rpg-platform-argo-mcp 'https://mcp.argo.games/mcp'
What is the io.github.Argo-RPG-Platform/argo-mcp server?
io.github.Argo-RPG-Platform/argo-mcp is listed in the public MCP registry as io.github.Argo-RPG-Platform/argo-mcp. MCP server for Argo RPG Platform, connects AI assistants to campaign data via OAuth2. This page covers its hosted endpoint (https://mcp.argo.games/mcp).
Is the io.github.Argo-RPG-Platform/argo-mcp server safe to use?
io.github.Argo-RPG-Platform/argo-mcp scores 90 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.Argo-RPG-Platform/argo-mcp server expose?
io.github.Argo-RPG-Platform/argo-mcp exposes 65 tools: list_campaigns, get_campaign, create_campaign, update_campaign, list_co_gms, and 60 more. Their descriptions and schemas cost roughly 5,265 tokens of context every time the server is loaded.
Does the io.github.Argo-RPG-Platform/argo-mcp server require authentication?
Yes. io.github.Argo-RPG-Platform/argo-mcp asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.
Is the io.github.Argo-RPG-Platform/argo-mcp server still maintained?
io.github.Argo-RPG-Platform/argo-mcp is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.