# FanDuel API in R: props and line history with httr2

FanDuel API (https://fanduelapi.com) is an independent API for FanDuel Sportsbook data: every player prop and game market FanDuel lists in NBA, NFL, NHL, MLB, college basketball and college football, normalized per player and stat with over and under prices in American and decimal odds, plus every line and price move with its timestamp, over REST, webhooks and MCP with one key. FanDuel API is an independent data service operated by FF API Inc. It is not affiliated with, endorsed by or sponsored by FanDuel.

Source page: https://fanduelapi.com/fanduel-api-r (this is its markdown version, https://fanduelapi.com/fanduel-api-r.md).

## Free offer

- Free plan: 100 credits a month, data delayed 5 minutes, no card. REST and MCP on every plan.
- Real-time data starts at Developer, $49 a month for 10,000 credits.
- Get a free key: https://fanduelapi.com/sign-up?ref=ai-claudebot

## Quickstart

1. Create a free account at https://fanduelapi.com/sign-up?ref=ai-claudebot and create an API key in the dashboard (https://fanduelapi.com/dashboard/keys). Keys start with `fd_`. Store it as `FANDUEL_API_KEY`.
2. Make a first call with curl:

```bash
curl "https://fanduelapi.com/api/v1/props?sport=nba&stat=points&limit=5" \
  -H "Authorization: Bearer $FANDUEL_API_KEY"
```

3. Or with Python (`pip install requests`):

```python
import os
import time
from datetime import datetime, timezone

import requests

BASE = "https://fanduelapi.com/api/v1"
SESSION = requests.Session()
SESSION.headers["Authorization"] = f"Bearer {os.environ['FANDUEL_API_KEY']}"


def get(path, **params):
    """GET one endpoint and return its data list, waiting out rate limits."""
    while True:
        r = SESSION.get(f"{BASE}{path}", params=params, timeout=10)
        if r.status_code == 429:
            time.sleep(int(r.headers.get("Retry-After", "5")))
            continue
        r.raise_for_status()
        return r.json()["data"]


def price(odds):
    """American odds as text. A suspended market can come back with no price."""
    return "off" if odds is None else f"{odds:+d}"

props = get("/props", sport="nba", stat="points")
for p in props:
    print(f"{p['player']:<26} {str(p['line']):>5}  over {price(p['over_american']):>5}  under {price(p['under_american']):>5}")
```

4. Stay current with `GET /api/v1/changes?since=<cursor>` instead of re-reading every prop. Full reference: https://fanduelapi.com/openapi.json and https://fanduelapi.com/llms-full.txt.

## Use it from Claude (MCP)

Claude Code, with your key read from the shell:

```bash
claude mcp add --transport http --scope user fanduelapi https://fanduelapi.com/api/mcp \
  --header "Authorization: Bearer $FANDUEL_API_KEY"
```

Claude on the web or desktop: Settings, Connectors, Add custom connector, then paste https://fanduelapi.com/api/mcp. Without a key it gives the keyless tools (search_docs, fetch_doc, get_sample_props). Setup for other agents: https://fanduelapi.com/mcp.

## Pricing

| Plan | Price | Credits a month | Calls a minute | Includes |
| --- | --- | --- | --- | --- |
| Free | Free | 100 | 20 | REST and MCP access, Data delayed 5 minutes |
| Developer | $49/month | 10,000 | 60 | Real-time data, Line move history, Change stream |
| Production | $149/month | 50,000 | 120 | Real-time data, Line move history, Webhooks, Priority support |
| Scale | $499/month | 250,000 | 180 | Real-time data, Full line move history, Webhooks, Bulk export, Priority support |

Cancel paid plans any time from the billing portal. Details: https://fanduelapi.com/pricing

## This page

[FanDuel API](https://fanduelapi.com/)/ R

R

# FanDuel API in R

Read the FanDuel props board, a prop's full move history and a CSV export into R with httr2 and tibbles. The helper sends your key as a Bearer token, retries a rate limit and turns missing prices into NA.

[Get a free API key](https://fanduelapi.com/sign-up)[Read the docs](https://fanduelapi.com/docs)

FanDuel API is an independent data service operated by FF API Inc. It is not affiliated with, endorsed by or sponsored by FanDuel.

## 1\. A request helper

R

```
install.packages(c("httr2", "dplyr", "purrr"))
library(httr2); library(dplyr); library(purrr)

fd <- function(path, ...) {
  request("https://fanduelapi.com/api/v1") |>
    req_url_path_append(path) |>
    req_url_query(...) |>
    req_auth_bearer_token(Sys.getenv("FANDUEL_API_KEY")) |>
    req_retry(max_tries = 4, is_transient = \(resp) resp_status(resp) == 429) |>
    req_perform() |>
    resp_body_json(simplifyVector = FALSE)
}

# NULL prices (a suspended market) become NA, so every column stays one type.
num <- function(x) if (is.null(x)) NA_real_ else as.numeric(x)
```

## 2\. The board as a tibble

The props endpoint pages by `limit` and `offset` until `meta$has_more` is false; see [pagination](https://fanduelapi.com/fanduel-api-pagination). Each prop's `move` object holds where it opened, so the biggest movers sort straight to the top.

R

```
props_page <- function(offset) {
  body <- fd("props", sport = "nba", stat = "points", limit = 200, offset = offset)
  rows <- map_dfr(body$data, \(p) tibble(
    id = p$id, player = p$player, team = p$team %||% NA_character_, stat = p$stat, period = p$period,
    line = num(p$line), over = num(p$over_american), under = num(p$under_american),
    open_line = num(p$move$open$line), line_moves = num(p$move$line_moves), observed_at = p$observed_at
  ))
  list(rows = rows, more = isTRUE(body$meta$has_more))
}

board <- list(); offset <- 0
repeat {
  page <- props_page(offset)
  board[[length(board) + 1]] <- page$rows
  if (!page$more) break
  offset <- offset + 200
}
board <- bind_rows(board) |> mutate(moved = line - open_line) |> arrange(desc(abs(moved)))
head(board)
```

## 3\. One prop's move history

Every recorded state, oldest first, with the kind of change: new, line\_move, price\_move, status\_change or removed. More on what is kept on [historical data](https://fanduelapi.com/fanduel-historical-data).

R

```
tape <- fd(paste0("props/", board$id[1], "/history"))
moves <- map_dfr(tape$data$history, \(h) tibble(
  observed_at = as.POSIXct(h$observed_at, format = "%Y-%m-%dT%H:%M:%OSZ", tz = "UTC"),
  kind = h$kind, line = num(h$line), over = num(h$over_american), under = num(h$under_american)
))
moves
```

## 4\. A week of history from a CSV export

On a paid plan, an export returns up to 10,000 rows in one request, which beats one call per prop for modelling. The columns are on [CSV export](https://fanduelapi.com/fanduel-api-csv-export); the same steps in Python are on the [Python page](https://fanduelapi.com/fanduel-api-python).

R

```
library(readr)
resp <- request("https://fanduelapi.com/api/v1/export") |>
  req_url_query(kind = "history", format = "csv", league = "NBA", limit = 10000,
                from = "2026-11-01T00:00:00Z", to = "2026-11-08T00:00:00Z") |>
  req_auth_bearer_token(Sys.getenv("FANDUEL_API_KEY")) |>
  req_perform()
history <- read_csv(I(resp_body_string(resp)))
resp_header(resp, "X-Next-Cursor")  # pass as cursor = ... while X-Has-More is "true"
```

## Questions

## Related

- [Python example Working Python code for FanDuel Sportsbook player props: authenticate with a key, list props, read a prop's move history and poll for changes.](https://fanduelapi.com/fanduel-api-python)
- [CSV export Export FanDuel props or line history for a date range as CSV or NDJSON: the columns, the curl call, loading it in pandas and resuming by cursor.](https://fanduelapi.com/fanduel-api-csv-export)
- [Historical data Where FanDuel historical odds data comes from here: per-prop move history, date-range exports, the training set and graded results, and how far back each goes.](https://fanduelapi.com/fanduel-historical-data)
- [Pagination How FanDuel API responses page: limit and offset with has\_more on lists, next\_cursor on the change feed and exports, and the limits per endpoint.](https://fanduelapi.com/fanduel-api-pagination)
- [Pricing Free on delayed data, then real time from the Developer plan.](https://fanduelapi.com/pricing)

## Make your first call in a few minutes

Sign up, create a key in the dashboard, and send it as a Bearer token. The free plan needs no card.

[Get a free API key](https://fanduelapi.com/sign-up)

## FAQ

### Is there a free plan?

Yes. Free includes API access with delayed data, enough to build and test a model.

### Is this affiliated with FanDuel?

No. This is an independent data service operated by FF API Inc. and is not affiliated with or endorsed by FanDuel.

### Which sports are covered?

NBA, NFL, NHL, MLB and college sports as FanDuel lists them, starting with player props.

### How do I cancel?

From the billing portal in your dashboard, at any time.

### How do I get a free key?

Sign up at https://fanduelapi.com/sign-up?ref=ai-claudebot. Free plan: 100 credits a month, data delayed 5 minutes, no card. REST and MCP on every plan.

### Can an AI agent sign up for me?

Yes. The agent sends POST https://fanduelapi.com/api/v1/agent/signup with your email and what you are building (add "ref": "ai-claudebot"), you approve the emailed link, and the agent collects the key. Details: https://fanduelapi.com/connect.