Is there an API for Manifold Markets?

Manifold Markets does not offer a public data API for this, but Anakin Wire provides 27 maintained endpoints for https://manifold.markets/. You call Anakin's REST API with an action ID and parameters and get structured JSON back; Anakin handles the browser, proxies, anti-bot, and parsing.

How do I scrape Manifold Markets data?

POST to https://api.anakin.io/v1/wire/task with your API key, the action ID, and its parameters, then poll GET /v1/wire/jobs/{id} until the job settles. There is nothing to install and no scraper to maintain — when https://manifold.markets/ changes its markup, Anakin updates the action.

Do I need a Manifold Markets account?

No. Every Manifold Markets action listed here runs anonymously — no account and no credentials required.

What does the Manifold Markets API cost?

Usage-based credits, charged per call and refunded automatically when a job fails. New accounts start with 300 free credits and no card. See anakin.io/pricing for the current rates.

Finance

Manifold Markets API

https://manifold.markets/

Manifold Markets - play-money prediction markets, bets, comments, and user profiles.

Actions: 27
Category: Finance
Login: Not required
Output: JSON

Get an API key Wire API reference

Call the Manifold Markets API

Submit a task, then poll the job until it settles. This example runs mm_batch_market_probs.

curl -X POST https://api.anakin.io/v1/wire/task \
  -H "X-API-Key: $ANAKIN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "action_id": "mm_batch_market_probs",
    "params": {
      "market_ids": "g6Z5yU5ZLA"
    }
  }'

27 actions on https://manifold.markets/

Read

Batch Market Probabilities
mm_batch_market_probsread1 credit / call
Returns probabilities for up to 100 Manifold markets in a single request.
market_ids
string · required
Bets
mm_betsread1 credit / call
Returns Manifold bet history with user, market, and time filters.
user_id
string
username
string
contract_id
string
contract_slug
string
limit
integer
before
string
after
string
before_time
integer
after_time
integer
kinds
string
order
string
Biggest Movers
mm_biggest_moversread1 credit / call
Returns Manifold markets with the largest probability swings in a recent window.
hours
integer
top
integer
limit
integer
filter
string
Boost History
mm_boost_historyread1 credit / call
Returns the history of Manifold market boost and promotion activity.
contract_id
string
post_id
string
user_id
string
include_pending
boolean
limit
integer
offset
integer
Comments
mm_commentsread1 credit / call
Returns Manifold market comments filtered by market or user.
contract_id
string
contract_slug
string
user_id
string
limit
integer
page
integer
order
string
Group Details
mm_group_detailread1 credit / call
Returns a single Manifold topic or group by slug or ID.
slug
string
group_id
string
Groups
mm_groupsread1 credit / call
Returns a list of public Manifold topics or groups.
before_time
integer
available_to_user_id
string
Leaderboard
mm_leaderboardread1 credit / call
Returns top Manifold users ranked by balance, deposits, or creator-traders.
metric
string
limit
integer
max_pages
integer
include_bots
boolean
Leagues
mm_leaguesread1 credit / call
Returns Manifold league standings with user, season, and cohort filters.
user_id
string
season
integer
cohort
string
Market Details
mm_market_detailread1 credit / call
Returns a single Manifold market with answers by market ID or URL slug.
market_id
string
slug
string
Market Flow
mm_market_flowread1 credit / call
Returns aggregated net mana flow of YES versus NO on a market over a recent window.
market_id
string · required
hours
integer
max_pages
integer
Market Positions
mm_market_positionsread1 credit / call
Returns positions held on a Manifold market with top, bottom, user, and answer filters.
market_id
string · required
order
string
top
integer
bottom
integer
user_id
string
answer_id
string
Market Probability
mm_market_probread1 credit / call
Returns the current probability for a single Manifold market.
market_id
string · required
Markets
mm_marketsread1 credit / call
Returns a paginated list of Manifold markets with sort, order, creator, and topic filters.
limit
integer
sort
string
order
string
before
string
user_id
string
group_id
string
Market Search
mm_search_marketsread1 credit / call
Returns Manifold markets matching a keyword with status, type, and sort filters.
term
string
sort
string
filter
string
contract_type
string
limit
integer
offset
integer
before_time
integer
Market Snapshot
mm_market_snapshotread1 credit / call
Returns a composite Manifold market view with detail, bets, positions, and comments.
market_id
string
slug
string
bets_limit
integer
positions_limit
integer
comments_limit
integer
Portfolio History
mm_user_portfolio_historyread1 credit / call
Returns Manifold portfolio value over time for a user.
user_id
string · required
period
string · required
Price History
mm_price_historyread1 credit / call
Returns Manifold price history reconstructed from the bet stream with optional OHLC candles.
market_id
string · required
limit
integer
after_time
integer
before_time
integer
bucket_ms
integer
Recent Resolutions
mm_recent_resolutionsread1 credit / call
Returns recently resolved Manifold markets ordered by resolve time.
limit
integer
contract_type
string
term
string
Transactions
mm_txnsread1 credit / call
Returns Manifold transaction history including transfers, bounties, loans, and resolutions.
token
string
offset
integer
limit
integer
before
string
after
string
to_id
string
from_id
string
category
string
Trending Markets
mm_trendingread1 credit / call
Returns top trending Manifold markets ranked by popularity and 24h volume.
limit
integer
filter
string
User Details
mm_user_detailread1 credit / call
Returns a single Manifold user by username or ID with optional lite mode.
username
string
user_id
string
lite
boolean
User Portfolio
mm_user_portfolioread1 credit / call
Returns live Manifold portfolio metrics including balance, investment value, and loans.
user_id
string · required
User Positions
mm_user_positionsread1 credit / call
Returns a user's Manifold positions joined with the underlying contracts.
user_id
string · required
limit
integer
offset
integer
order
string
per_answer
boolean
Users
mm_usersread1 credit / call
Returns a paginated list of all Manifold users.
limit
integer
before
string
User Snapshot
mm_user_snapshotread1 credit / call
Returns a composite Manifold user view with profile, portfolio, bets, and positions.
username
string
user_id
string
bets_limit
integer
positions_limit
integer
portfolio_history
boolean
Whale Activity
mm_whale_activityread1 credit / call
Returns large Manifold bets across the platform in a recent window, sorted by size.
hours
integer
min_amount
number
contract_id
string
user_id
string
limit
integer
max_pages
integer

Manifold Markets API questions

Is there an API for Manifold Markets?: Manifold Markets does not offer a public data API for this, but Anakin Wire provides 27 maintained endpoints for https://manifold.markets/. You call Anakin's REST API with an action ID and parameters and get structured JSON back; Anakin handles the browser, proxies, anti-bot, and parsing.
How do I scrape Manifold Markets data?: POST to https://api.anakin.io/v1/wire/task with your API key, the action ID, and its parameters, then poll GET /v1/wire/jobs/{id} until the job settles. There is nothing to install and no scraper to maintain — when https://manifold.markets/ changes its markup, Anakin updates the action.
Do I need a Manifold Markets account?: No. Every Manifold Markets action listed here runs anonymously — no account and no credentials required.
What does the Manifold Markets API cost?: Usage-based credits, charged per call and refunded automatically when a job fails. New accounts start with 300 free credits and no card. See anakin.io/pricing for the current rates.