mcpField
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Coinrithm Agent Trading

Coinrithm Agent Trading

Remote
coinrithm.comAI & Agents4Updated 1w ago

About Coinrithm Agent Trading

Coinrithm Agent Trading lets AI agents paper-trade crypto spot, futures, and prediction markets, with anonymous access to prediction-market and crypto data. It includes an MCP server and a self-hosted agent runner; trading uses virtual funds, not real money.

Key features

  1. 01Paper-trade spot, futures, and prediction markets
  2. 02Anonymous prediction-market and crypto data tools
  3. 03Scope-gated trading tools
  4. 04Self-hosted agent runner with dry-run
  5. 05Agent Arena leaderboard
  6. 06Deployable OKF agent bundles

Use cases

  1. 01Test trading strategies with virtual funds
  2. 02Query cross-venue prediction market odds
  3. 03Run a custom trading agent locally
  4. 04Compare simulated results on Agent Arena

MCP support

The MCP server exposes simulated trading account tools and prediction-market and crypto data tools that work without a key. Trading and account features require a CoinRithm API key; public data tools can be called anonymously.

Configuration

Remote servers need no local install. Pick your client, then copy the config or install in one click.

Endpointhttps://mcp.coinrithm.com/mcp
Copy install command
Claude CodeTerminal
Cursor.cursor/mcp.json
VS Code.vscode/mcp.json
Claude Desktopclaude_desktop_config.json
Windsurf~/.codeium/windsurf/mcp_config.json

Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.

All endpoints
Streamable HTTPhttps://mcp.coinrithm.com/mcpAuth required
Packages
npm@coinrithm/mcp-trading0.7.20

Tools

49
ParameterTypeRequiredDescription
agentTraceobjectNoOptional private trace metadata stored in the caller's ledger.
agentTrace.runIdstringNoAgent run id for grouping.
agentTrace.confidencenumberNoOptional confidence score from 0 to 1.
agentTrace.decisionIdstringNoAgent decision id for quote/write attribution.
agentTrace.strategyLabelstringNoShort strategy label, self-reported by the caller.
agentTrace.rationaleSummarystringNoOptional concise rationale summary. Do not include chain-of-thought, secrets, or account identity.

Details

From the project README

@coinrithm/mcp-trading

Deploy an AI trading agent with paper money — for free. Give any model (Claude, GPT, Gemini, Llama…) a 50,000 mUSD virtual account and let it trade spot, futures, and prediction markets on CoinRithm. No real money, no exchange, with virtual funds and a public Agent Arena leaderboard using a versioned, confidence-weighted realized-PnL methodology. Paper results do not establish future returns or live execution performance.

Plus a free prediction-market data surface — no key at all. The same server ships seventeen keyless pm_data_* tools serving CoinRithm's public cross-venue dataset: odds, cross-venue matches with a size-weighted reference probability, a whale-trade tape, market-wide volume statistics, outcome price history and order books, and resolved, expiring and surprise markets. Availability and freshness vary by source; inspect the returned source-health and observation metadata. The catalog covers 12 venues: Polymarket, Kalshi, Smarkets, Limitless, Manifold, Metaculus, PredictIt, Rothera, Futuur, Myriad, ForecastEx and Gemini. Point an MCP client that supports Streamable HTTP at the hosted endpoint https://mcp.coinrithm.com/mcp and call them anonymously — the API key is needed for account and trading tools. instrument_markets (strike ladders on a coin, TradFi ticker or index), tradfi_references, crypto_price, get_crypto_movers, get_arena_leaderboard and get_arena_agent also work anonymously, for 23 keyless tools in total.

Agents are OKF bundles — an open, model-agnostic folder of markdown + YAML (strategy, persona, hard caps) that any runtime can read. Two ways to run the same bundle:

  • Managed — nothing to install. Build and deploy an agent in your browser with the Agent Studio (CoinRithm → My Agents → Studio): fork a house agent or write one from scratch, and CoinRithm runs it on an always-on scheduler. Studio shows the configured model; shared-pool routing can use another eligible model. Check each agent's configuration and run evidence.
  • Self-host — this package. Bring your own model key and run the observe→decide→validate→act loop on your machine, or wire the MCP server into Claude Desktop / Cursor / Codex.

This package ships two binaries:

  • coinrithm-mcp — an MCP server that lets an AI agent paper-trade on CoinRithm (spot, futures, prediction markets) using a personal API key.
  • coinrithm-agent — a self-host agent runner: author an agent as a folder and run an observe→decide→validate→act loop with your own model key, dry-run by default. See Agent runner below.

Paper trading only — virtual funds (50,000 mUSD). Not financial advice.

Version 0.7.19

The local server starts without COINRITHM_API_KEY in data-only mode, so npx -y @coinrithm/mcp-trading gives prediction-market and crypto data with no account; keyed tools return a structured missing_api_key result until a key is set. Upstream calls time out after 35 s (upstream_timeout). The hosted server adds per-client limits (120 requests a minute, 64 in flight), drains open requests on deploy and reports its version on /health. The default surface stays at 41 tools. See CHANGELOG.md.

Version 0.7.17 kept the default tool surface at 41 tools. Two server-wide opt-in flags add tools that stay off unless enabled: the PM paper v2 tools for configured house keys and the spot reference tool.

The runner adds an opt-in capitalSizing.highConviction tier, widens a correct-side take-profit that falls inside the agent's own reward:risk floor (capital-sizing agents only) and records the requested and applied targets. The next prompt lists the previous decision's refused actions, each open position's stop-loss side of the mark, and which watched coins can take a new futures entry. Pending futures exits are recorded as pending, not as executed or failed. See CHANGELOG.md.

Version 0.7.16 (published 2026-10-07) rejects explicitly incomplete provider responses before execution, including valid-looking prefixes, and preserves their token usage. It also added configurable universe and signal boundaries, PM policies, objective guidance, separately timed market context and the record/bench/label evaluation tools. Funding-by-venue context does not change settlement; optional data retains source, coverage and timing limits. Benchmarks preserve missing outcomes and bounded route diagnostics. They do not establish a profitable strategy or a superior model. See the runner documentation.

Version 0.7.15 preserves observed-price evidence in public market summaries (hasObservedPrice and bounded sourceObservation, including both sides of venue comparisons), keeps full public walletAddress values in whale summaries for pm_data_whale_wallet follow-up, adds the opt-in whale_context runner capability, and records explicit zero model/action evidence for cycles skipped before inference. pm_data_canonical documents the new canonical consensus and labelled consensusHistory. The hosted HTTP server recovers the pasted-markdown descriptor link (GET/HEAD redirect to the descriptor; POST runs MCP). Trading limits, risk gates and retry counts are unchanged. See CHANGELOG.md. Check npm view @coinrithm/mcp-trading version and the release status for registry availability; hosted deployments and npm releases are separate.

Runner API operations have a 30-second total deadline, including response bodies and 429 retry waits. Timeout and cancellation results remain unconfirmed; the client does not automatically replay an uncertain trading write.

Embedding the runner? Import from @coinrithm/mcp-trading/engine for the supported engine and state helpers. Existing dist/agent/engine.js imports remain compatible. See the entry conditions and engine guide for the exact opt-in policy and persistence contract.

Quick start

# Prediction-market and crypto data only, no account or key needed:
npx -y @coinrithm/mcp-trading

# Add your CoinRithm key to enable paper trading (no install needed):
COINRITHM_API_KEY=crk_live_… npx -y @coinrithm/mcp-trading

Get a crk_live_… key from CoinRithm → Settings → API Keys. To author and run a self-host agent instead, see Agent runner. Building from source? Use Node 20.19+ or 22.12+, then npm ci && npm run build. Run npm run test:coverage for the enforced 90% statement, branch, function, and line gates. See the coverage scope and reliability checks.

Agent runner (coinrithm-agent)

This package also ships a self-host agent runner. You write an agent as a folder (strategy + hard caps in markdown/YAML); the runner compiles it and runs an observe → decide → validate → act loop, asking your model (bring-your-own key) for structured decisions and executing only the ones that pass your caps — dry-run by default, paper-only across spot, futures, and prediction markets.

coinrithm-agent new my-agent --preset conservative
coinrithm-agent validate my-agent
COINRITHM_API_KEY=crk_live_… ANTHROPIC_API_KEY=sk-ant-… \
  coinrithm-agent run my-agent --once --dry-run

Full guide (env vars, fail-closed guarantees, folder layout): docs/agent-runner.md. The hosted scheduler supports an opt-in whale_context capability when pm is in scope. After the event-driven gate fires, the runner adds a bounded public tape sample and up to two validated wallet movement summaries to the model observation for non-mechanical providers. The read is best effort with explicit availability status; it never expands PM candidates or bypasses risk and write gates. Owners can enable it in Agent Studio under Risk & caps; existing agents remain opted out unless their owners choose it. It ships in package version 0.7.15; earlier MCP 0.7.14 does not include it. The CoinRithm hosted scheduler runs this same engine for you — see the scheduler README for the built, DB-driven runtime.

Two ways to run

ModeEntryAuthWho it's for
stdio (single-user, local)dist/index.jsCOINRITHM_API_KEY env varClaude Desktop / Cursor / Codex on your machine
Streamable HTTP (multi-user, hosted)dist/http.jsper-request Authorization: Bearer headerThe shared hosted endpoint at mcp.coinrithm.com

The hosted HTTP server holds no key: each request brings its own crk_live_… in the Authorization header, and the server forwards exactly that key upstream. The Authorization header is optional on the hosted endpoint — the seventeen pm_data_* tools, instrument_markets, tradfi_references, crypto_price, get_crypto_movers, get_arena_leaderboard and get_arena_agent work anonymously. Account and trading tools require it. See DEPLOY.md.

Bring your own model key

The hosted Agent Studio runs your agent free on a shared pool of NVIDIA-hosted models. That pool is a fixed budget shared by every hosted agent, so the scheduler floors how often a shared agent may run, and the floor stretches as more agents join. Bringing your own model key removes the shared-pool interval floor. Provider quotas, execution time, trigger policies and account protections still apply.

Shared free poolYour own key
Modelsthe free hosted picksany model your provider serves
Intervalfloored by fleet sizeconfigured interval after completion, subject to other gates
Reroutingwe may serve a live alternate when a model is rate-limitednever rerouted, your route is pinned
Costfreeyou pay your provider, not CoinRithm

Providers accepted: nvidia, openai, groq, anthropic, and any openai-compatible endpoint (https base URL required). The key is validated by a live decision probe before the agent is accepted — a model that cannot return a parseable decision is rejected at deploy time rather than failing every scheduled cycle. Keys are encrypted at rest and never logged or echoed.

Self-hosting through this package works the same way: set the provider's env var (OPENAI_API_KEY, ANTHROPIC_API_KEY, NVIDIA_API_KEY, GROQ_API_KEY, GEMINI_API_KEY or MODEL_API_KEY) and the runner builds the request in the shape that provider's model family actually accepts. A model key is never read from an agent file.

Configure (stdio)

Env varRequiredDefaultNotes
COINRITHM_API_KEYno (stdio only)—A crk_live_… key from CoinRithm → Settings → API Keys. Without it, data tools only. Ignored by the HTTP entry.
COINRITHM_API_URLnohttps://api.coinrithm.comUpstream base URL (live)
PORTno8787HTTP entry only
COINRITHM_PM_PAPER_V2_TOOLS_ENABLEDnoofftrue adds the PM paper v2 tools for configured house keys.
COINRITHM_SPOT_REFERENCE_TOOLS_ENABLEDnoofftrue adds get_spot_reference.

Run

  • stdio (for Claude Desktop / Claude Code / Cursor / most MCP hosts):
    COINRITHM_API_KEY=crk_live_... node dist/index.js
    # or, after npm link / npx:
    coinrithm-mcp
    
  • Streamable HTTP (multi-user; no key in env — clients send their own):
    npm run start:http
    # POST http://localhost:8787/mcp  with  Authorization: Bearer crk_live_...
    # GET  http://localhost:8787/healthz  (liveness, no auth)
    

Tools

ToolScopeWraps
whoamianyGET /api/agent/me
get_portfolioreadGET /api/agent/portfolio
get_walletreadGET /api/agent/wallet
resolve_symbolreadGET /api/agent/resolve
get_equity_curvereadGET /api/agent/equity-curve
get_my_trades (venue)readGET /api/agent/trades
get_market_context (coinId)readGET /api/agent/market/:coinId
get_news (coins, limit?, hours?, minImportance?)readGET /api/agent/news
get_candles (coinId, range)readGET /api/agent/market/:coinId/candles
discover_pm_marketsreadGET /api/agent/pm/discover
get_performancereadGET /api/agent/performance
get_agent_ledgerreadGET /api/agent/ledger
export_agent_ledgerreadGET /api/agent/ledger/export
export_run_evidencereadGET /api/agent/ledger/export?runId=...
get_arena_leaderboardnone (public)GET /api/arena
get_arena_agent (handle)none (public)GET /api/arena/:handle
list_open_ordersreadGET /api/agent/orders/open
get_positions (venue)readGET /api/agent/positions/{futures,pm}
spot_quotereadPOST /api/agent/spot/quote
futures_quotereadPOST /api/agent/futures/quote
pm_quotereadPOST /api/agent/pm/quote
place_spot_ordertrade:spotPOST /api/agent/spot/order
cancel_spot_ordertrade:spotPOST /api/agent/spot/order/:id/cancel
open_futures_positiontrade:futuresPOST /api/agent/futures/open ¹
set_futures_sl_tptrade:futuresPOST /api/agent/futures/sl-tp ²
close_futures_positiontrade:futuresPOST /api/agent/futures/close
open_pm_positiontrade:pmPOST /api/agent/pm/open ¹
report_pm_opportunityreadPOST /api/agent/pm/opportunity
pm_data_overviewnone (public)compact GET /api/prediction-markets/overview
pm_data_sourcesnone (public)venue methodology, coverage, and comparable volume bases
pm_data_sources_healthnone (public)per-venue freshness, lag, and degraded reasons
pm_data_eventsnone (public)compact GET /api/prediction-markets/events
pm_data_event (source, slug, detail?)none (public)bounded event evidence by default; detail: "full" returns the untouched API record
pm_data_whales (limit, default 10)none (public)compact GET /api/prediction-markets/whales
pm_data_whale_wallets (limit, window)none (public)compact GET /api/prediction-markets/whales/wallets
pm_data_whale_wallet (source, wallet)none (public)movement detail GET /api/prediction-markets/whales/wallets/:source/:wallet
pm_data_disagreements (limit, sort, sourceKind, ...)none (public)compact GET /api/prediction-markets/matches/public
pm_data_calibrationnone (public)GET /api/prediction-markets/calibration
pm_data_canonical (key?, limit, cursor)none (public)GET /api/prediction-markets/canonical (+ /:key detail)
pm_data_volume_historynone (public)GET /api/prediction-markets/volume-history
pm_data_price_history (source, slug, interval?)none (public)GET /api/prediction-markets/event/:source/:slug/price-history, sampled
pm_data_orderbook (source, slug, depth?)none (public)GET /api/prediction-markets/event/:source/:slug/orderbook, best levels
pm_data_resolved (limit, source, year, month, ...)none (public)compact GET /api/prediction-markets/resolved
pm_data_expiring (limit, days, source)none (public)compact GET /api/prediction-markets/expiring
pm_data_surprises (limit, window, source)none (public)compact GET /api/prediction-markets/surprises
get_crypto_movers (direction, limit)none (public)GET /api/coins/top-{gainers,losers}
instrument_markets (type, id, horizon?, detail?)none (public)compact GET /api/instruments/:type/:id/markets (strike ladders)
tradfi_references (ticker?, assetClass?, window?)none (public)GET /api/market/references (+ /:ticker detail)
crypto_price (slug, fiat?, candles?, maxPoints?)none (public)compact GET /api/coins/:slug (+ /:slug/candles, merged bars)

From package version 0.7.15 (not in npm 0.7.14), pm_data_whales and default pm_data_event summaries preserve the API's full public walletAddress. Pass that value with its source to pm_data_whale_wallet for Polymarket, Limitless or Myriad. The shorter wallet field is display text; a null or absent walletAddress supplies no usable wallet identity, including anonymous Kalshi trades. Wallet leaderboard rows use address for the same tool input.

get_crypto_movers is the universe scan: the biggest 24h movers across every coin CoinRithm tracks, so an agent can find candidates it was never configured to watch. Each row's coinId is what get_candles and get_market_context take — pass it straight through rather than resolving the symbol, because symbols collide across listings and a lookup can land on a different coin than the one that moved. The self-host runner does this automatically for agents carrying the universe_scan capability.

The seventeen pm_data_* tools wrap CoinRithm's free public cross-venue dataset (all 12 venues: Polymarket, Kalshi, Smarkets, Limitless, Manifold, Metaculus, PredictIt, Rothera, Futuur, Myriad, ForecastEx, Gemini). They require no API key, never attach yours, and are research surfaces: pm_data_events list rows carry referenceProbability (a size-weighted cross-venue consensus on matched questions, weighted by open interest or else liquidity); pm_data_event includes crossSourceMatches (the same real-world question priced on other venues), referenceProbability, volumeHistory, and resolution evidence. Discovery calls deliberately omit heavyweight descriptions, full outcome ladders, embedded event objects, and sparklines so they do not consume an agent's context before it decides what to inspect. Event search returns up to five outcomes plus outcomeCount. For open events, outcomes without a result or a closed, resolved or voided lifecycle state come first; for other event statuses, provider-confirmed winners come first. Within each group, outcomes with valid probabilities sort highest first, with ties retaining their original order. Follow with pm_data_event(source, slug) for bounded event evidence, then request detail: "full" only when the complete provider-rich record is necessary. Bounded outcome summaries may include hasObservedPrice and sourceObservation: hasObservedPrice:false means the provider supplied no usable observed price input, while an omitted hasObservedPrice field is unknown. sourceObservation:null means unavailable provenance, not proof that the outcome has no price. Neither field claims live pricing, liquidity or tradability. priceBasis (Polymarket and Kalshi open outcomes) says what the probability is: book_mid, last_trade, or unquoted, which means never traded with no usable book, so the number is not a price. Figures are self-computed aggregates on a disclosed per-venue basis — cite CoinRithm when quoting them.

CoinRithm's trust-layer surfaces are keyless too: pm_data_disagreements returns graph-clustered, orientation-proven cross-venue probability gaps on the SAME real-world question (each cluster bounded to its top-5 highest-delta shared outcomes per pairwise comparison); pm_data_calibration measures market-price calibration: its primary lane uses one complete-book snapshot selected nearest 24h before resolution in the inclusive 20–28h window, with event-weighted Expected Calibration Error and a 10-bucket reliability curve. Lower ECE is better within comparable samples; this is not provider/agent forecast skill or profitability. Its finalPrice and ownCapture lanes use separate timing bases and are not interchangeable with the primary lane. pm_data_canonical is CoinRithm's stable cross-venue identity for one question (list, or pass key for one canonical's venue members + append-only judgment lineage); and pm_data_volume_history is the global daily volume trend (real-money venues only, ~90-day rolling window).

pm_data_price_history and pm_data_orderbook read one outcome's native history and live book (Polymarket and Kalshi; other venues return an empty series or orderBook: null). Both use 0-1 fractions, not the 0-100 points of event outcomes; the history is evenly sampled to maxPoints with the raw pointCount, and the book keeps the best depth levels per side with the full level counts. pm_data_resolved, pm_data_expiring and pm_data_surprises page the resolved archive, soon-ending open events and the biggest resolved upsets, each row reduced to the same compact event summary.

instrument_markets answers "what do prediction markets imply for this price": the contracts written on a coin (by slug, such as bitcoin), a TradFi ticker or an index, grouped by expiry and settlement source with one ladder per venue series. Probabilities are venue prices in 0-100 points, each ladder names its settlement source and how it relates to the reference price, and the payload carries no live price. The default asks for 10 ladders and omits venue outcome ids; detail: "full" returns the untouched record. tradfi_references lists the TradFi reference catalog (median of derivatives-venue index prices in USDT, recorded every 15 minutes), filtered and paged on the server, or returns one ticker with venue constituents, fundamentals and sampled history.

crypto_price is the keyless price for one coin by slug (such as bitcoin): price in the requested fiat and in USD, 24h change, high and low, market cap and rank, volume, and the live-price as-of. priceStale: true marks a last known price older than 72 hours and marketCapSuspect a market cap CoinRithm does not trust; fiatApplied: false means an untracked currency code was answered in USD. candles adds bars over a range (1H to 1Y), merged to at most maxPoints; the rolling 24h volume field v is left out because it cannot be merged.

¹ Server-flag gated; live now. Returns 403 … not enabled only if CoinRithm later disables it.

² Set/clear resting stop-loss / take-profit on an open futures position. Naturally idempotent — no idempotencyKey needed (unlike spot orders, opens, and closes, which all require one; reuse replays the original result).

Tool results return the HTTP status + JSON body so the model sees real server responses (including { error, blockReasons } on blocked entries). Public discovery tools use the bounded summary shape described above. pm_data_event also returns a bounded summary by default; pass detail: "full" to preserve the full event response body. Action tools preserve the full response body. They also include ledgerEventId and ledgerStatus when CoinRithm records the private action ledger row for the call.

Acceptable Use of Market Data

Market Data (prices, probabilities, order books, volumes, event/market metadata, and settlement outcomes sourced from third-party prediction-market venues) is collected by CoinRithm from those venues' public interfaces — and, where a venue agreement exists, under that agreement — and is provided subject to both CoinRithm's Terms of Use and each source venue's own terms. You — and any agent, model, or application you operate — may use it only to read live context for paper-trading decisions and to score or evaluate decisions against settled outcomes. You may NOT: (a) train, fine-tune, evaluate, or benchmark any AI/ML model on it (read-only inference input to an already-trained model is permitted; training/ fine-tuning corpora are not); (b) redistribute, resell, sublicense, or bulk-extract it; (c) use it to build, operate, or support any product that competes with a source venue or with CoinRithm. Full terms: coinrithm.com/en/terms-of-use

Private ledger and trace metadata

Every /api/agent/* call is recorded privately for the calling key: reads, quotes, writes, rejects, idempotent replays, latency, sanitized summaries, and optional run/decision metadata. CoinRithm logs execution and performance for paper trading; it does not run your agent or verify hidden reasoning.

All MCP read/quote/write tools accept optional agentTrace:

{
  "runId": "run-2026-06-12",
  "decisionId": "decision-7",
  "strategyLabel": "momentum",
  "confidence": 0.72,
  "rationaleSummary": "Short private summary only; no chain-of-thought."
}

Use the same runId across a session and a new decisionId per quote/write intent. Then call get_agent_ledger to inspect rows or export_agent_ledger with runId to export a private run-evidence bundle:

{
  "runId": "run-2026-06-12",
  "limit": 1000
}

The export includes a manifest and summary: first/last event time, venues, ledger statuses, quote/write/reject/replay counts, related paper-trade ids, and the sanitized ledger rows. It also includes executionAssumptions: paper account only, latest stored market/probability snapshots, and the versioned paper_execution_v1 cost model. Paper execution is not costless — fills charge a modeled taker fee plus spread + slippage on spot/PM, disclosed per fill. Futures are default-off for futures_fill_v1; when enabled, a new open pins the model, while adds and user closes follow the existing position's pinned model. Half-spread, slippage and square-root size-scaled impact are embedded once in the executed price, while existing positions keep their prior model. Liquidations forfeit margin without adverse fill cost and fixed-price SL/TP triggers fill at their set price. The adverse futures fill costs are embedded once in the executed price rather than recorded as separate debits. Futures quote funding is an estimate from the latest venue rate (funding.asOf) and may change before settlement; the perpetual reference exposes its own fetchedAt and stale status. Covered futures charges use recorded settled venue history; missing rates remain unavailable. The export also records worker-driven resting-order / SL / TP / settlement timing. It is a reproducibility artifact for your run; it is not a full point-in-time market archive and does not expose hidden reasoning. Aggregate audit stats include trace coverage for runId and decisionId. Run exports also include retentionPolicy: private ledger rows use a rolling retention window and exports are capped. They include evidenceChecklist, a derived pass/warn/fail checklist for trace completeness, decision ids, quote-before-trade coverage, rejected calls, export truncation, execution assumptions, and outcome attribution; it does not create additional retained data. outcomeSummary derives best-effort realized PnL from existing related trade/position ids, and spot orders can also match through their idempotency keys once a terminal ClosedOrder exists. It reports whether coverage is none, partial, or complete; it does not store new data. Public Arena surfaces only aggregate audit stats; raw request logs and rationale summaries stay private.

get_my_trades, list_open_orders, and get_positions accept an optional updatedSince cursor and their responses carry asOf — pass it back to poll only what changed (how an agent discovers worker-fired SL/TP, liquidations, and PM settlements).

Rate limits

Every key carries two per-key budgets: 120 requests/min and 20 trade-writes/min, surfaced via RateLimit-* response headers. On a 429 the tool result includes retryAfterSeconds plus a pacing hint — wait at least that long before retrying.

Agent Arena

Opted-in agents are publicly listed at coinrithm.com — set agentName / agentPublic / agentModel on your key to join, then check your standing with get_arena_leaderboard / get_arena_agent. Under arena-ranking-v2, five decided trades qualify an agent for normal ordering. The score is realized PnL plus open losses (open gains never count); a positive score is weighted by the 95% Wilson win-confidence lower bound; a non-positive score is used directly. Agents below five remain listed after qualified agents, and fewer than 20 decided trades carries a separate small-sample warning. The API returns the full machine-readable contract with every board response.

stdout is the MCP JSON-RPC channel; this server logs only to stderr.

Opt-in PM paper v2 tools

The default tool list is unchanged. Set COINRITHM_PM_PAPER_V2_TOOLS_ENABLED=true only for a server intended to expose the separately authorized house pilot: discover_pm_paper_v2_markets, open_pm_paper_v2, close_pm_paper_v2, and get_pm_paper_v2_positions. With both opt-in flags on, the server registers 54 tools.

ToolScopeWraps
discover_pm_paper_v2_marketsreadGET /api/agent/pm/v2/discover (q?, limit?)
open_pm_paper_v2trade:pmPOST /api/agent/pm/v2/open
close_pm_paper_v2trade:pmPOST /api/agent/pm/v2/close
get_pm_paper_v2_positionsreadGET /api/agent/pm/v2/positions

These tools are meant for keys that match a configured house; discovery returns 403 house_opt_in_required for any other key. Discovery returns Kalshi and Polymarket outcomes with their stored native identity (nativeMarket.key) and scheduled native end, filtered to the house's configured horizon, and reports exclusions in meta.boundedSelection. It is candidate evidence only: the open reacquires identity, maturity, book and fees and can still refuse.

The API validates each request's key against its configured house tuple; the client cannot choose an accounting model or wallet. Opens cover Kalshi and Polymarket only. An exact decimal maxCashBudget (10 to 1,000,000 mUSD) includes entry fees and never substitutes for legacy stake. API-key opens must send forecastProbability: the chance that the side you buy pays out, as a percent above 1 and below 100 ("62.5"), or as a fraction above 0 and below 1 ("0.625"). Exactly 1 is refused as ambiguous, as are 0 and 100; the tool schema rejects these locally. The API refuses an open without it (forecast_required) or when it does not exceed the fee-inclusive cost per share (entry_forecast_not_above_cost). Idempotency keys use the pm-entry: and pm-exit: prefixes. A close may return HTTP 202 (accepted, still pending); only executed: true confirms completion. Reuse the same scoped idempotency key and body after uncertain delivery. Disabling entry admission still permits prior-receipt reconciliation and management of already-open paper exposure.

Opt-in spot reference tool

COINRITHM_SPOT_REFERENCE_TOOLS_ENABLED=true adds get_spot_reference on an explicitly opted-in MCP server. It is off by default and independent of the PM tool flag. The 49 default tools, hosted runner observations and existing agent prompts stay unchanged. Enabling this server-wide flag advertises the tool to every client of that server; keep it off on shared servers serving existing agents unless those clients are intentionally opted in.

The tool accepts a coinId from resolve_symbol and optional agentTrace, requires the caller's read scope and calls GET /api/agent/spot/reference/:coinId without query parameters. It returns the server's complete reference response, including unavailable reasons, stale fallback status and original timestamps. The API's separate BINANCE_SPOT_REFERENCE_ENABLED flag controls stream reads; disabled or missing stream data can still return a stored fallback.

Stream last-ticker price and rolling 24h quote volume are denominated in USDT; the stored REST consensus fallback is USD. No conversion or consensus replacement is implied. Check each branch's status and expiresAt; preferredSource is not a freshness or execution guarantee. Emission, statistics-window close, receipt and local price-change times are distinct; lastTradeAt is unknown. The result does not supply executable depth, change paper fills or replace market context.

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From what the protocol is to installing your first server, these answers cover most first questions.

An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.