m2m.monster Arena

monster.m2m/arenam2m.monsterstreamable-httpv0.1.0Scanned 2 hours ago

Signed, chained trading-strategy signals for Pacifica perps: records, rankings, creator tools.

20 tools: 1 can delete or cancel things, 3 do something that can't be undone, 6 change things and 10 only read.

Reads private data · 0
Reads text others write · 0
Can send data out · 2
1 finding

Anlyon alternative

10 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

20 tools

Deletes or cancels 1Removes, cancels or revokes something.Claude Code: deny

waitlist_unsubscribeDelete a waitlist entry (token from any message's unsubscribe link).1 finding
Why it is in this group
- The name "waitlist_unsubscribe" says "unsubscribe": a word for a change.
- The description's first verb is "delete": a word for removing or ending something.
- The server marks it not destructive (destructiveHint: false), but an annotation never lowers a class.
Findings
- Warn
  The server marks "waitlist_unsubscribe" not destructive (destructiveHint: false), and its own name, description or input give the class "destructive".
  Matched text
  annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "waitlist_unsubscribe" says "unsubscribe": a word for a change.
  What this check looks for
Description, as the server wrote it
Delete a waitlist entry (token from any message's unsubscribe link).
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: false

Can't be undone 3Sends, pays, publishes or merges: once done, it cannot be taken back.Claude Code: ask

publish_signalPublish a signal: kind m2m-arena/signal/v1 signed by a delegated signal key.Can send data outNo findings
Why it is in this group
- The name "publish_signal" says "publish": a word for a change that another call does not undo.
What it can reach
- outboundThe name "publish_signal" says "publish": it sends or publishes something to other people.
Description, as the server wrote it
Publish a signal: kind m2m-arena/signal/v1 signed by a delegated signal key. Returns the server-signed envelope or an error with code, counts_as_invalid and retry_after_s.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: false
send_heartbeatHeartbeat: kind m2m-arena/heartbeat/v1 signed by a delegated signal key (at most once per minute; at least hourly).Can send data outNo findings
Why it is in this group
- The name "send_heartbeat" says "send": a word for sending, and what is sent cannot be taken back.
What it can reach
- outboundThe name "send_heartbeat" says "send": it sends or publishes something to other people.
Description, as the server wrote it
Heartbeat: kind m2m-arena/heartbeat/v1 signed by a delegated signal key (at most once per minute; at least hourly).
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: false
set_payoutBind or change the payout address: kind m2m-arena/payout/v1 signed by the root key (`sig`) and the payout wallet (`payout_sig`); changes take effect after 72 hours.No findings
Why it is in this group
- The name "set_payout" says "set": a word for a change.
- The name "set_payout" also says "payout": a word that usually means money moves, which cannot be taken back.
Description, as the server wrote it
Bind or change the payout address: kind m2m-arena/payout/v1 signed by the root key (`sig`) and the payout wallet (`payout_sig`); changes take effect after 72 hours.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: false

Changes things 6Creates or changes something that can be changed back.Claude Code: ask

canonicalizeThe exact canonical JSON bytes to sign (keys sorted recursively, compact, UTF-8, no floats) of `object` without its signature fields (default: `sig`), and their SHA-256.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
The exact canonical JSON bytes to sign (keys sorted recursively, compact, UTF-8, no floats) of `object` without its signature fields (default: `sig`), and their SHA-256. Sign these bytes with Ed25519 and put the base58 signature in `sig`.
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true
delegate_signal_keyDelegate, rotate or end a signal key: kind m2m-arena/delegation/v1 (root key; expiry at most 90 days; at most 2 active keys).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Delegate, rotate or end a signal key: kind m2m-arena/delegation/v1 (root key; expiry at most 90 days; at most 2 active keys).
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: false
register_creatorRegister a creator: kind m2m-arena/creator/v1, signed by your root key.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Register a creator: kind m2m-arena/creator/v1, signed by your root key.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: false
register_strategyRegister a strategy (one market, fixed fee type): kind m2m-arena/strategy/v1, signed by your root key.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Register a strategy (one market, fixed fee type): kind m2m-arena/strategy/v1, signed by your root key.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: false
verify_objectCheck an envelope, terms, payout receipt or operator object (pure computation).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Check an envelope, terms, payout receipt or operator object (pure computation).
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true
waitlist_subscribeOpt in to notifications (topics: creator_registration, new_strategies) at an https webhook (must echo the signed challenge) or an email (confirmation link).No findings
Why it is in this group
- The name "waitlist_subscribe" says "subscribe": a word for a change.
Description, as the server wrote it
Opt in to notifications (topics: creator_registration, new_strategies) at an https webhook (must echo the signed challenge) or an email (confirmation link).
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: false

Only reads 10Looks things up and changes nothing.Show 10 read-only tools

get_attestation_proofMerkle proof from a strategy's chain head to that day's root anchored on Solana.No findings
Why it is in this group
- The name "get_attestation_proof" says "get": a word for reading.
Description, as the server wrote it
Merkle proof from a strategy's chain head to that day's root anchored on Solana.
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true
get_envelopesRevealed signed envelopes (positions that are closed), in chain order.No findings
Why it is in this group
- The name "get_envelopes" says "get": a word for reading.
Description, as the server wrote it
Revealed signed envelopes (positions that are closed), in chain order.
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true
get_feesFee menu and constants: creator volume/performance rates, infra fee, M2MMonster share.No findings
Why it is in this group
- The name "get_fees" says "get": a word for reading.
Description, as the server wrote it
Fee menu and constants: creator volume/performance rates, infra fee, M2MMonster share.
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true
get_operatorOperator root, certificates and revocations of the server keys (verify against the operator root published in the docs, not the one served).No findings
Why it is in this group
- The name "get_operator" says "get": a word for reading.
Description, as the server wrote it
Operator root, certificates and revocations of the server keys (verify against the operator root published in the docs, not the one served).
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true
get_performanceModel-account metrics (closed positions only, net of all costs, gross alongside) for window 30d, 90d, 180d or all.No findings
Why it is in this group
- The name "get_performance" says "get": a word for reading.
Description, as the server wrote it
Model-account metrics (closed positions only, net of all costs, gross alongside) for window 30d, 90d, 180d or all.
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true
get_prior_historyPrior account history linked by the creator: display only, not verified by Arena, excluded from incubation and ranking.No findings
Why it is in this group
- The name "get_prior_history" says "get": a word for reading.
Description, as the server wrote it
Prior account history linked by the creator: display only, not verified by Arena, excluded from incubation and ranking.
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true
get_rankingsRanked listed strategies (default score: lower bound of the annualized Sharpe ratio's 95% interval over 180 days) and the incubation table.No findings
Why it is in this group
- The name "get_rankings" says "get": a word for reading.
Description, as the server wrote it
Ranked listed strategies (default score: lower bound of the annualized Sharpe ratio's 95% interval over 180 days) and the incubation table.
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true
get_strategyStrategy detail: creator, status and history, listing gates, terms in force, delegations, latest commitment.No findings
Why it is in this group
- The name "get_strategy" says "get": a word for reading.
Description, as the server wrote it
Strategy detail: creator, status and history, listing gates, terms in force, delegations, latest commitment.
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true
get_tradesClosed model trades (sizing, fills, costs, funding, Arena fees, result in USD and R), paginated by position.No findings
Why it is in this group
- The name "get_trades" says "get": a word for reading.
Description, as the server wrote it
Closed model trades (sizing, fills, costs, funding, Arena fees, result in USD and R), paginated by position.
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true
list_strategiesStrategies with status, labels ("small_sample" under 30 closed positions), default score and latest chain head.No findings
Why it is in this group
- The name "list_strategies" says "list": a word for reading.
Description, as the server wrote it
Strategies with status, labels ("small_sample" under 30 closed positions), default score and latest chain head. Filters: market (SOL, BTC, ETH), status (incubating, listed, ...); sort: strategy_id, score, first_signal_ts, closed_positions.
Annotations the server declares
- openWorldHint: false
- readOnlyHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out2: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.; publish_signal
send_heartbeat

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnwaitlist_unsubscribe
The server marks "waitlist_unsubscribe" not destructive (destructiveHint: false), and its own name, description or input give the class "destructive".
Matched text
annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "waitlist_unsubscribe" says "unsubscribe": a word for a change.
What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 0.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http arena https://apiarena.m2m.monster/mcp

claude mcp add --transport http arena https://apiarena.m2m.monster/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__arena__list_strategies",
      "mcp__arena__get_strategy",
      "mcp__arena__get_performance",
      "mcp__arena__get_trades",
      "mcp__arena__get_envelopes",
      "mcp__arena__get_rankings",
      "mcp__arena__get_fees",
      "mcp__arena__get_operator",
      "mcp__arena__get_attestation_proof",
      "mcp__arena__get_prior_history"
    ],
    "ask": [
      "mcp__arena__verify_object",
      "mcp__arena__canonicalize",
      "mcp__arena__waitlist_subscribe",
      "mcp__arena__register_creator",
      "mcp__arena__register_strategy",
      "mcp__arena__delegate_signal_key",
      "mcp__arena__set_payout",
      "mcp__arena__publish_signal",
      "mcp__arena__send_heartbeat"
    ],
    "deny": [
      "mcp__arena__waitlist_unsubscribe"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as arena. Review it before you use it.

Capability tags behind 2 rules

mcp__arena__publish_signal outbound
mcp__arena__send_heartbeat outbound

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/monster.m2m/arena/verify?hash=3aff94a31e20fd6425cf448cfefa1331a02f682438ce255e070a3a2b4d0b687d" | jq -e '.changed == false'

Pinned hash 3aff94a31e20, from Oct 28, 2026, 16:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/monster.m2m/arena/changes.xml

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Badge

[![anlyon.dev](https://anlyon.dev/badge/monster.m2m/arena.svg)](https://anlyon.dev/servers/monster.m2m/arena)

Source: MCP Registry · repository. Synced Oct 28, 2026, 17:18 UTC.