Claude
Terminal setup
Claude Code
claude mcp add --transport http --scope user \ yarrow https://api.pulse.yarrowlab.ai/mcp && \ claude mcp login yarrow
Authorize Yarrow in the browser when prompted.
Pulse← DashboardYarrow / MCP
Connect your agent
Yarrow forecasts for your agents.
Connect Claude or Codex to check your account, run forecasts, and read results in your conversation.
Setup guide
Set up Yarrow
Ask your agent to connect, or use the terminal.
Ask your agent to connect
Paste this into Claude or Codex.
Add Yarrow to my user-level MCP configuration as a Streamable HTTP server at https://api.pulse.yarrowlab.ai/mcp, start OAuth sign-in, and guide me through any permissions or browser authorization you cannot complete.
Terminal setup
Codex
Terminal setup
Codex CLI
codex mcp add yarrow \ --url https://api.pulse.yarrowlab.ai/mcp \ --oauth-client-registration dcr
Authorize Yarrow in the browser when prompted.
Optional next step: install the skill
After connecting MCP, give your agent a guide for choosing questions and refreshing forecasts.
What to ask
Start with a real question
Copy a starting point, fill in the brackets, and review the saved question before using credits.
EVENTS
Map the events that matter
Turn a thesis into a short calendar of dated releases and decisions that could change it.
Prompt to try
Using Yarrow, identify the 3 to 5 upcoming public events that matter most to my thesis: [your thesis]. Draft a settleable question for each, with its source and deadline. Show me the list before any paid forecast.
RESEARCH
Put a number on a claim
Take a key claim from a report and ask what public result would prove or disprove it.
Prompt to try
Using Yarrow, turn this claim into a dated forecast question: [claim]. Name the public source that will settle it, validate the draft, and show me the saved rule and deadline before asking to run it.
PRICES
Forecast a price on a date
Specify the ticker, trading day and price source so the forecast has a clear answer.
Prompt to try
Using Yarrow, forecast the official closing price of [ticker] on [trading date]. State the exchange source and share basis, validate the question, and show me the saved rule before asking to run it.
MARKETS
Get a second read on a market
Compare Yarrow's reasoning with a specific prediction-market contract and its last indexed price.
Prompt to try
Using Yarrow, find this prediction-market contract: [market URL or exact question]. Show me its rules, event deadline, last indexed price and price timestamp. Ask me to confirm the contract before saving a question or running a forecast.
UPDATES
Revisit a forecast after news
Bring a new public source to an existing question and see what changed since the last run.
Prompt to try
Using Yarrow, check whether this new public evidence materially affects my saved forecast on [question]: [URL]. If it does, propose a refresh and ask before spending credits. Then show the old and new results with their forecast dates.
Go further
One skill for every workflow
v1.0.2Yarrow works with the MCP connection alone. Add this optional skill when you want your agent to choose a workflow, draft a group of questions, and revisit forecasts as evidence changes.
Prompt to install
Install this Yarrow skill at the user level: https://pulse.yarrowlab.ai/skills/yarrow/SKILL.md