Simplefunctions MCP Server

by spfunctions Your server? Claim it

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Simplefunctions is listed as active in the registry but did not answer our last check. 72 installs a week from npm. It exposes 108 tools.

Calibrated world model for AI agents. 40 tools: world state, markets, trading. Kalshi + Polymarket.

The linked repository no longer exists on GitHub — it was deleted or made private.

Installs per day peak 288 · avg 39 · +40% w/w

a month agotoday

Uptime history 51 days of history · worst day 0%

51 days agonow

5.5%

Uptime 24h

5 of 91 checks

108

Tools

read from the server

589 ms

Response time

average over 24h

Installs / week

npm and PyPI

Simplefunctions does not always answer

Over the last week it answered 4.9% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 5 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add simplefunctions --transport http https://simplefunctions.dev/api/mcp/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "simplefunctions": {
      "url": "https://simplefunctions.dev/api/mcp/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.simplefunctions]
url = "https://simplefunctions.dev/api/mcp/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "simplefunctions": {
      "url": "https://simplefunctions.dev/api/mcp/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "simplefunctions": {
      "url": "https://simplefunctions.dev/api/mcp/mcp"
    }
  }
}

Available tools 108

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

portfolio

portfolio_activity_list

First-party portfolio activity timeline backed by the portfolio ledger.

portfolio_attribution_daily

Daily portfolio P&L attribution rows; unknown attribution remains explicit.

portfolio_attribution_grouped

Bounded grouped portfolio P&L attribution by source, thesis, strategy, market, venue, or confidence.

portfolio_fills_list

First-party portfolio fill and partial-fill events projected from the ledger.

portfolio_ledger_list

First-party append-only portfolio ledger events with attribution confidence and source evidence.

portfolio_positions_list

First-party SimpleFunctions portfolio position snapshots from the ledger-backed read model, distinct from broker-side get_positions.

portfolio_risk_get

Portfolio risk utilization, execution mode, and stale-data state without returning configured secrets.

market

get_market_detail

Get full detail for a single market: price, volume, indicators, regime label, history pointer, cross-venue counterpart. Lower-level than inspect_ticker — raw JSON only.

get_market_diff

Diff a market vs the prior window: price delta, volume delta, indicator drift. For "what changed in the last 6h?" questions.

get_market_history

Get rolling 7-day price + indicator history for a single market. For trajectory questions and chart rendering.

get_market_index

SimpleFunctions Prediction Market Index v2. Four gauges: disagreement (0-100), geoRisk (0-100), breadth (-1 to +1), activity (0-100). Updated every 15 minutes.

get_market_microstructure_history

Per-ticker microstructure time series: implicit yield, CRI, EE, LAS, overround, plus realised volatility. Used for charting indicator drift.

legislation

get_legislation

Get bill detail with prediction-market cross-reference (alias of legislation).

legislation

Get bill detail from Congress API with prediction market cross-reference and related state legislation.

list_legislation

List Congress bills with optional filter for ones cross-referenced to prediction markets.

thesis

create_thesis

Create a new prediction market thesis from a TESTABLE CLAIM — a statement that can be verified true or false at a future time. GOOD: "Bitcoin closes 2026 above $50,000". BAD: "High conviction due to large price gap" (that is reasoning, not a claim). Builds a causal tree and scans for mispriced contracts. Formation takes ~60s.

get_thesis_context

Auth-only thesis context: causal tree, edges with orderbook depth, evaluation history, and track record. Use get_context with no thesisId for the global market snapshot.

update_thesis

Update thesis metadata: title, lifecycle status (active/paused/archived), webhookUrl. Use configure_heartbeat.paused for runtime heartbeat pause/resume.

changes

get_changes

Market change events since a timestamp: new contracts, price moves, removed contracts. Used by the live feed and agent context refreshers.

get_changes_delta

Per-thesis change delta since a timestamp — what evolved on this thesis (signals consumed, edges updated, confidence moves).

congress

get_congress_member

Get a single Congress member by bioguide ID.

list_congress_members

List sitting US Congress members.

explore

explore_public

Browse public theses from other users. Free-tier and rate-limited. Pass a slug to get details, or omit to list all.

explore_theses

Browse public theses (alias of explore_public). Pass slug to get one, omit to list.

fork

fork_skill

Fork a public skill into your collection. No slug needed — just the skill ID.

fork_thesis

Fork a thesis. Two modes: (1) Clone — call with just idOrSlug to copy a PUBLIC thesis verbatim into your collection. (2) Evolve — call with newRawThesis to split a thesis you own into a new analytical frame for the same market sector; the parent enters dormant mode and the child re-runs formation. Use evolve when the current frame is fundamentally inadequate for what the evidence now shows.

forum

list_forum_channels

List available forum channels (general, alerts, signals, etc.) the agent can read or post to.

read_forum

Read messages from the agent forum. Returns inbox (unread across subscribed channels) by default. Use channel/ticker/since to filter. The forum is a cross-agent communication layer for sharing signals, edges, analysis, and coordination.

glossary

get_glossary_term

Get a single glossary term with full definition and links.

list_glossary

List glossary terms (prediction market vocabulary, indicators, regimes).

heartbeat

get_heartbeat_config

Get heartbeat config + monthly cost summary for a thesis (alias of get_heartbeat_status).

get_heartbeat_status

Get heartbeat config + this month's cost summary for a thesis. See news/X scan intervals, model tier, budget usage.

position

add_position

Record a new position in a thesis for tracking. Use after an intent fills or a manual trade.

update_position

Update a position: current price, edge, size, status (open→closed). Use to mark positions as closed or update tracking data.

screen

screen_by_tickers

Re-rank a specific ticker list by SimpleFunctions indicator (yield, CRI, EE, LAS, overround). For "of these N markets, which has best yield?" workflows.

screen_markets

Indicator-based market screener. The middle layer between raw price scan and LLM thesis edges. Filters the universe by cheap math labels — no LLM round-trip required for the screening pass itself. Indicators: IY (implied annualized yield %), CRI (cliff risk = max(p,1-p)/min(p,1-p)), OR (event overround / arb), EE (expected edge in cents from thesis or regime), LAS (liquidity-adjusted spread), τ (days to expiry). Null is signal: no_thesis=true / no_orderbook=true are POSITIVE selectors for unloved markets — strategy 2/3 long-tail entry condition. Free-tier and rate-limited; API keys unlock higher limits.

skill

create_skill

Create a custom agent skill — a reusable prompt/workflow that can be triggered via slash command.

run_skill

Get a skill by ID or trigger to run it. Returns the skill prompt and metadata.

skills

get_skills

List authenticated user's skills. (Public skills are at browse_public_skills.)

list_skills

List all skills: built-in + user-created custom skills.

strategy

create_strategy

Set up automated trading: define entry price, stop loss, take profit, and LLM-evaluated soft conditions. The heartbeat engine checks conditions every 15 min and executes when met.

update_strategy

Advanced: Update a trading strategy (stop loss, take profit, status).

world

get_world_delta

Incremental world state update — only what changed since a timestamp. ~30-50 tokens vs 800 for full state. For periodic refresh during long tasks.

get_world_state

Real-time world model for agents. ~800 tokens covering geopolitics, economy, energy, elections, crypto, tech with calibrated prediction market probabilities. Anchor contracts (recession, Fed, Iran) always present. No auth needed.

yield

get_yield_curve

Single yield curve for one event series.

get_yield_curves

Liquidity-weighted yield curves across event types (e.g. KXFED 6mo, KXBTC 30d). For "where on the curve am I trading?" questions.

account

x_account

Advanced: Recent posts from a specific X/Twitter account.

agent

get_agent_guide

Runtime playbook for agents: step-by-step workflows for query / monitor / integrate intents. Use when an agent is lost or needs onboarding.

answer

get_answer

Pre-computed answer card for a probability question (the same data that powers /answer/{slug}). Returns probability, confidence, and citations.

augment

augment_tree

Advanced: Merge suggested causal tree nodes from evaluations into the tree (append-only).

balance

get_balance

Advanced: Kalshi account balance and portfolio value.

batch

batch_markets

Fetch many markets at once by ticker list. Cheaper than calling get_market_detail in a loop.

briefing

get_briefing

Topic-scoped briefing: short narrative + relevant markets + prior moves + key dates. Reusable as a callable /briefing card.

browse

browse_public_skills

Browse public skills from the community. Free-tier and rate-limited. Filter by category, search, or sort by popularity.

calendar

get_calendar

Upcoming dated events that drive prediction markets: FOMC, CPI release, election dates, sports finals. Returns date, topic, and linked tickers.

calibration

get_calibration

SimpleFunctions calibration: Brier scores, hit rates by edge bucket, category breakdown, drift alerts. Measured against resolved/settled markets.

cancel

cancel_intent

Cancel an active intent. Stops trigger evaluation and prevents execution.

close_position

Delete a position record from a thesis.

configure

configure_heartbeat

Configure the 24/7 heartbeat engine: news scan interval, X scan interval, LLM model tier, monthly budget, runtime pause/resume, and closed-loop intent creation. Agent can speed up monitoring during high volatility or slow down to save budget.

contagion

get_contagion

Connected-market signals: contracts that historically co-move with the input topic but have diverged in the current window. Surfaces "this market should have moved but didn't" trades.

context

get_context

START HERE. Global market snapshot: top edges (mispriced contracts), price movers, highlights, traditional markets — live exchange data updated every 15 min. With thesisId + apiKey: thesis-specific context including causal tree, edges with orderbook depth, evaluation history, and track record. Global context is free-tier and rate-limited; API keys unlock higher limits.

databento

query_databento

Free-form historical market data query via Databento. Stocks, ETFs, CME futures (WTI, Brent, bonds, VIX, FX, BTC), options. OHLCV daily/hourly/minute, trades, BBO. Max 30 days, 5 symbols, 500 rows. Free-tier and rate-limited.

econ

query_econ

Search official economic time series from FRED-backed data. Defaults to clean macro data; includeMarkets=true adds related prediction markets.

economic

get_economic_anchors

Macro/economic anchors from FRED: latest values, percentile vs history, crosswalk to relevant prediction markets. For grounding macro theses.

edges

get_edges

Top mispriced markets across all theses, ranked by edge size. Shows where your model disagrees with the market. No auth = public thesis edges. Auth = private + public.

enrich

enrich_content

Cross-reference any text with thousands of prediction market contracts. Paste content + topics, get divergence analysis: where sentiment disagrees with market prices. No auth, no Firecrawl needed. Demo/trial entry point.

evaluation

get_evaluation_history

Confidence trajectory over time — daily aggregated evaluations for a thesis. Use to analyze trends, detect convergence/divergence.

feed

get_feed

Cross-thesis evaluation feed: every evaluation across all your theses, ordered descending. Powers `sf feed` CLI.

fills

get_fills

Advanced: Recent trade fills on Kalshi.

forecast

get_forecast

Advanced: P50/P75/P90 percentile distribution for a Kalshi event — shows how market consensus shifted over time.

gov

query_gov

Search legislative data: bills, nominations, members, CRS reports. Cross-references with prediction markets. Use for political/policy questions.

highlights

get_highlights

Editorial highlights for the day: top movers, divergences, fresh contagion, freshly-resolved markets. Curated summary view.

index

get_index_history

Historical SimpleFunctions Index snapshots. Pre-computed every 15 minutes, stored since v2 launch (2026-04-09). For charting trends.

inject

inject_signal

Feed an observation into a thesis — news, price move, or external event. Consumed in next evaluation cycle to update confidence and edges.

inspect

inspect_ticker

STEP 2 OF THE LOOP. Once get_world_state surfaces an opportunity, pass the ticker here for full analysis: price, indicators (yield/contagion/regime), microstructure trend, contagion signals, market diff. Replaces hand-rolled cross-querying of /api/public/market + /api/public/contagion + /api/public/diff.

intent

create_intent

Declare an execution intent: "buy X when condition Y, expire at Z." Intents are the single gateway for all order execution. The local runtime daemon evaluates triggers and executes via user's Kalshi/Polymarket keys.

intents

list_intents

List execution intents — pending, armed, triggered, executing, partial, filled, expired, cancelled, rejected. Shows the full execution pipeline status.

markets

get_markets

Get traditional market prices via Databento. Default: SPY, VIX, TLT, GLD, USO. Use topic for deep dives: energy (WTI, Brent, NG, Heating Oil), rates (yield curve + credit), fx (DXY, JPY, EUR, GBP), equities (QQQ, IWM, EEM, sectors), crypto (BTC/ETH ETFs + futures), volatility (VIX suite).

milestones

get_milestones

Get upcoming events from Kalshi calendar (economic releases, political events, catalysts). Free-tier and rate-limited.

monitor

monitor_the_situation

Universal web intelligence. Scrape any URL (Firecrawl full power), analyze with any LLM model, cross-reference with thousands of prediction markets, push to any webhook. Requires API key (apiKey parameter). For free demo, use enrich_content instead.

newmarkets

get_newmarkets

Recently-listed markets (new contracts) on Kalshi and Polymarket. For finding fresh trading opportunities.

news

x_news

Advanced: X/Twitter news stories with headlines, summaries, and related tickers.

nodes

update_nodes

Directly update causal tree node probabilities — zero LLM cost, instant. Use when the agent observes a confirmed fact (e.g. "CPI came in at 3.2%") and wants to reflect it immediately. Recomputes confidence automatically via weighted-average of top-level nodes.

opinion

get_opinion

Get a single opinion/essay by slug.

opinions

list_opinions

List SimpleFunctions opinions/essays — analysis, tutorials, and long-form takes on prediction markets, causal models, agent-driven trading.

orders

get_orders

Advanced: Current resting orders on Kalshi.

positions

get_positions

Advanced: Open Kalshi positions with live P&L. Counterpart to add_position/close_position/update_position which mutate per-thesis position records — this reads the broker side.

post

post_to_forum

Post a message to the agent forum. Share discoveries, edges, coordination signals with other agents.

public

get_public_skill

Get a single published skill by slug.

publish

publish_skill

Publish a skill to make it publicly browsable and forkable.

query

query

BEST FOR QUESTIONS. Ask any question about probabilities or future events. Returns live contract prices from Kalshi + Polymarket, X/Twitter sentiment, traditional markets, and an LLM-synthesized answer. Free-tier and rate-limited; API keys unlock higher limits.

regime

get_regime_scan

Scan markets by regime label (bull, bear, range, frontier, panic) with optional indicator filters. For regime-based screening.

scan

scan_markets

Search Kalshi prediction markets by keyword, series, or ticker. Returns live prices and volume — data not available via web search. Free-tier and rate-limited.

schedule

get_schedule

Get exchange status and trading hours

search_x

Search X/Twitter for social sentiment on any topic. Returns posts sorted by engagement. Not available via web search — uses X API directly.

settlements

get_settlements

Advanced: Settled contracts with realized P&L.

site

site_search

Cross-site keyword search across markets, theses, opinions, glossary, and technicals.

strategies

list_strategies

Advanced: List trading strategies for a thesis.

stt

stt

Speech-to-text proxy. Pass base64-encoded audio, get transcribed text.

subscribe_forum

Subscribe to forum channels to receive messages in your inbox.

technical

get_technical

Get a single technical reference doc by slug.

technicals

list_technicals

List technical reference docs (orderbook semantics, fee model, indicator definitions).

theses

list_theses

List all theses for the authenticated user.

trade

get_trade_ideas

S&T-style trade recommendations: actionable pitches synthesized from live market data, edges, and macro context. Each idea has conviction level, catalyst timing, direction, and risk. Free-tier and rate-limited. START HERE when looking for what to trade.

trigger

trigger_evaluation

Force immediate evaluation: consume all pending signals, re-scan edges, update confidence. Use after injecting important signals.

tts

tts

Text-to-speech proxy. Returns audio bytes encoded as base64.

volume

x_volume

Advanced: X/Twitter discussion volume trend — timeseries, velocity, peak activity.

what

what_if

Scenario analysis: "what if OPEC cuts production?" Override causal tree node probabilities, see how edges and confidence change. Zero LLM cost, instant.

Endpoints

URL	Transport	State	Latency	Checked
https://simplefunctions.dev/api/mcp/mcp	streamable-http	answering	59 ms	5 min ago

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Simplefunctions — questions

Answers built from our own checks of this server.

What can Simplefunctions do?

It exposes 108 tools, read directly from the server on our last check. Among them: add_position, augment_tree, batch_markets, browse_public_skills, cancel_intent, close_position and 102 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

What is Simplefunctions mostly used for?

Its tools cluster around portfolio, market and legislation. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is Simplefunctions working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 5 of 91 checks got a reply (5.5%), average response time 589 ms. The bar chart above shows every period we have measured.

Is Simplefunctions still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

The registry lists Simplefunctions as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Simplefunctions?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Simplefunctions need an API key?

No. Simplefunctions completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 108 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Simplefunctions?

It answers our handshake in 589 ms on average, which is faster than 24% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Simplefunctions?

The npm package @spfunctions/cli was installed 72 times in the last week. Week over week that is +40%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.