# Letterboxd API

> Letterboxd returns film details, ratings, reviews, and popularity-ranked films as a workflow and API.

Letterboxd (LB) Get film returns film details, ratings, watch services, and popular reviews from a title or film link. List popular films returns popularity-ranked films for a period, optionally filtered by genre and decade.

- Page: https://fous.com/tools/letterboxd
- Handle: `@letterboxd`
- Category: [Entertainment](https://fous.com/tools/category/entertainment)
- Source website: https://letterboxd.com
- Last verified: Sep 29, 2026

## Methods

### Get film

Operation `get_film`, version 1. 1 credit per completed call. Failed calls without a completed billing receipt are free; completed work can remain charged if delivery is interrupted.

Get a Letterboxd film by title or film link, with its ratings, cast, watch services and popular reviews. Fans may be shown as an abbreviated count; watch services depend on location.

**Input**

| Field | Type | Required | Example | Description |
|---|---|---|---|---|
| `year` | integer | no | `1982` | Release year to distinguish films with the same title, for example 2023. |
| `title` | string | yes | `"Past Lives"` | Film name or Letterboxd film link, for example Past Lives or https://letterboxd.com/film/past-lives/. |
| `max_reviews` | integer | no | `20` | Maximum popular reviews to return, for example 10. |

**Input schema**

```json
{
  "type": "object",
  "required": [
    "title"
  ],
  "properties": {
    "year": {
      "type": "integer",
      "description": "Release year to distinguish films with the same title, for example 2023.",
      "examples": [
        1982
      ]
    },
    "title": {
      "type": "string",
      "description": "Film name or Letterboxd film link, for example Past Lives or https://letterboxd.com/film/past-lives/.",
      "examples": [
        "Past Lives",
        "https://letterboxd.com/film/arrival-2016/",
        "The Thing"
      ]
    },
    "max_reviews": {
      "type": "integer",
      "default": 10,
      "maximum": 20,
      "minimum": 0,
      "description": "Maximum popular reviews to return, for example 10.",
      "x-fous-developer": true,
      "examples": [
        20,
        2,
        3
      ]
    }
  },
  "additionalProperties": false,
  "examples": [
    {
      "title": "Past Lives"
    },
    {
      "title": "Past Lives",
      "max_reviews": 20
    },
    {
      "title": "https://letterboxd.com/film/arrival-2016/",
      "max_reviews": 2
    }
  ]
}
```

**Output**

| Field | Type | Example | Description |
|---|---|---|---|
| `cast` | array |  |  |
| `fans` | any | `"69K"` |  |
| `year` | any | `2023` |  |
| `likes` | any | `902078` |  |
| `lists` | any | `478320` |  |
| `title` | any | `"Past Lives"` |  |
| `genres` | array |  |  |
| `themes` | array |  |  |
| `runtime` | any | `"106 mins"` |  |
| `tagline` | any | `"Why are they here?"` |  |
| `watched` | any | `2218498` |  |
| `synopsis` | any | `"After decades apart, childhood friends Nora and Hae Sung are reunited in New York for one fateful weekend as they confr` |  |
| `directors` | array |  |  |
| `poster_link` | any | `"https://a.ltrbxd.com/resized/film-poster/5/9/1/0/5/3/591053-past-lives-0-600-0-900-crop.jpg?v=c600b7854e"` |  |
| `average_rating` | any | `4.16` |  |
| `where_to_watch` | array |  |  |
| `letterboxd_link` | any | `"https://letterboxd.com/film/past-lives/"` |  |
| `popular_reviews` | array |  |  |
| `popular_reviews[].text` | any | `"found a version without subtitles, to get the full arthur experience"` |  |
| `popular_reviews[].likes` | any | `86334` |  |
| `popular_reviews[].rating` | any | `4` |  |
| `popular_reviews[].reviewer` | string | `"Jay"` |  |
| `number_of_ratings` | any | `1876882` |  |
| `rating_distribution` | array |  |  |
| `rating_distribution[].count` | any | `3534` |  |
| `rating_distribution[].stars` | number | `0.5` |  |

**Example input**

```json
{
  "title": "Past Lives"
}
```

**Example output**

```json
{
  "cast": [
    "Greta Lee",
    "Teo Yoo",
    "John Magaro"
  ],
  "fans": "69K",
  "year": 2023,
  "likes": null,
  "lists": null,
  "title": "Past Lives",
  "genres": [
    "Drama",
    "Romance"
  ],
  "themes": [
    "Moving relationship stories",
    "Heartfelt and sentimental family stories",
    "Powerful stories of heartbreak and suffering"
  ],
  "runtime": "106 mins",
  "tagline": null,
  "watched": null,
  "synopsis": "After decades apart, childhood friends Nora and Hae Sung are reunited in New York for one fateful weekend as they confront notions of destiny, love, and the choices that make a life.",
  "directors": [
    "Celine Song"
  ],
  "poster_link": "https://a.ltrbxd.com/resized/film-poster/5/9/1/0/5/3/591053-past-lives-0-600-0-900-crop.jpg?v=c600b7854e",
  "average_rating": 4.16,
  "where_to_watch": [
    "Apple TV Store",
    "Google Play Movies",
    "Amazon Video"
  ],
  "letterboxd_link": "https://letterboxd.com/film/past-lives/",
  "popular_reviews": [
    {
      "text": "found a version without subtitles, to get the full arthur experience",
      "likes": 86334,
      "rating": 4,
      "reviewer": "Jay"
    },
    {
      "text": "telling your long lost friend and potential lover to watch eternal sunshine is an act of emotional violence",
      "likes": 57773,
      "rating": 4,
      "reviewer": "Bobby Wagner"
    },
    {
      "text": "Shoutout to the husband for being shockingly chill about this whole situation",
      "likes": 54798,
      "rating": 4,
      "reviewer": "Patrick Willems"
    }
  ],
  "number_of_ratings": 1876882,
  "rating_distribution": [
    {
      "count": 3534,
      "stars": 0.5
    },
    {
      "count": 8168,
      "stars": 1
    },
    {
      "count": 6272,
      "stars": 1.5
    }
  ]
}
```

### List popular films

Operation `list_popular_films`, version 1. 1 credit per completed call. Failed calls without a completed billing receipt are free; completed work can remain charged if delivery is interrupted.

List Letterboxd films in popularity order for a week, month, year or all time, optionally filtered by genre and decade. Ratings and posters may be unavailable for some films.

**Input**

| Field | Type | Required | Example | Description |
|---|---|---|---|---|
| `genre` | string | no | `"horror"` | Film genre, for example horror; use all for any genre. |
| `decade` | string | no | `"1990s"` | Release decade, for example 1990s; use all for any decade. |
| `period` | string | no | `"this_week"` | Popularity period, for example this_month. |
| `max_results` | integer | no | `36` | Maximum number of films to return, for example 36. |

**Input schema**

```json
{
  "type": "object",
  "properties": {
    "genre": {
      "type": "string",
      "default": "all",
      "description": "Film genre, for example horror; use all for any genre.",
      "examples": [
        "horror"
      ]
    },
    "decade": {
      "type": "string",
      "default": "all",
      "description": "Release decade, for example 1990s; use all for any decade.",
      "examples": [
        "1990s",
        "1870s"
      ]
    },
    "period": {
      "enum": [
        "this_week",
        "this_month",
        "this_year",
        "all_time"
      ],
      "type": "string",
      "default": "this_week",
      "description": "Popularity period, for example this_month.",
      "examples": [
        "this_week",
        "this_month",
        "this_year"
      ]
    },
    "max_results": {
      "type": "integer",
      "default": 36,
      "maximum": 100,
      "minimum": 1,
      "description": "Maximum number of films to return, for example 36.",
      "x-fous-developer": true,
      "examples": [
        36,
        100,
        12
      ]
    }
  },
  "additionalProperties": false,
  "examples": [
    {
      "genre": "horror",
      "decade": "1990s",
      "period": "this_week",
      "max_results": 36
    },
    {
      "period": "this_month",
      "max_results": 100
    },
    {
      "genre": "horror",
      "decade": "1870s",
      "period": "this_year",
      "max_results": 12
    }
  ]
}
```

**Output**

| Field | Type | Example | Description |
|---|---|---|---|
| `films` | array |  |  |
| `films[].rank` | integer | `1` | Rank in popularity for the selected filters. |
| `films[].year` | integer or null | `1999` |  |
| `films[].title` | string | `"The Sixth Sense"` |  |
| `films[].poster_link` | string or null | `"https://a.ltrbxd.com/resized/film-poster/5/1/4/0/7/51407-the-sixth-sense-0-70-0-105-crop.jpg?v=ab482dfeb6"` |  |
| `films[].average_rating` | number or null | `4.11` | Average rating out of 5. |
| `films[].letterboxd_link` | string | `"https://letterboxd.com/film/the-sixth-sense/"` |  |

**Example input**

```json
{
  "genre": "horror",
  "decade": "1990s",
  "period": "this_week",
  "max_results": 36
}
```

**Example output**

```json
{
  "films": [
    {
      "rank": 1,
      "year": 1999,
      "title": "The Sixth Sense",
      "poster_link": "https://a.ltrbxd.com/resized/film-poster/5/1/4/0/7/51407-the-sixth-sense-0-70-0-105-crop.jpg?v=ab482dfeb6",
      "average_rating": 4.11,
      "letterboxd_link": "https://letterboxd.com/film/the-sixth-sense/"
    },
    {
      "rank": 2,
      "year": 1991,
      "title": "The Silence of the Lambs",
      "poster_link": "https://a.ltrbxd.com/resized/film-poster/5/1/7/8/2/51782-the-silence-of-the-lambs-0-70-0-105-crop.jpg?v=18d88bdff4",
      "average_rating": 4.34,
      "letterboxd_link": "https://letterboxd.com/film/the-silence-of-the-lambs/"
    },
    {
      "rank": 3,
      "year": 1997,
      "title": "Perfect Blue",
      "poster_link": "https://a.ltrbxd.com/resized/film-poster/4/6/1/7/5/46175-perfect-blue-0-70-0-105-crop.jpg?v=1ed5878cce",
      "average_rating": 4.37,
      "letterboxd_link": "https://letterboxd.com/film/perfect-blue/"
    }
  ]
}
```

## Quick start

Replace `YOUR_API_KEY` with a Fous API key. To create one, open Developers at the bottom of Fous Studio, turn on Developer mode, then go to API keys (https://app.fous.com/keys). Change the values in `input` to run the same tool on new data.

```bash
curl 'https://api.fous.com/v1/query' \
  --fail-with-body --silent --show-error --max-time 180 \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "api": "@letterboxd",
  "visibility": "public",
  "operation": "get_film",
  "version": 1,
  "input": {
    "title": "Past Lives"
  },
  "response": {
    "format": "json"
  }
}'
```

```python
# Save as fous.py and run with python3 fous.py. No packages needed.
import json
import urllib.error
import urllib.request

api_key = "YOUR_API_KEY"

body = json.loads("{\n  \"api\": \"@letterboxd\",\n  \"visibility\": \"public\",\n  \"operation\": \"get_film\",\n  \"version\": 1,\n  \"input\": {\n    \"title\": \"Past Lives\"\n  },\n  \"response\": {\n    \"format\": \"json\"\n  }\n}")
request = urllib.request.Request(
    "https://api.fous.com/v1/query",
    data=json.dumps(body).encode("utf-8"),
    headers={
        "Authorization": f"Bearer {api_key}",
        "Content-Type": "application/json",
    },
    method="POST",
)
try:
    with urllib.request.urlopen(request, timeout=180) as response:
        result = json.load(response)
except urllib.error.HTTPError as error:
    raise RuntimeError(f"HTTP {error.code}: {error.read().decode('utf-8', errors='replace')}") from error
if result.get("success") is False:
    raise RuntimeError(result.get("error", {}).get("message", "Request failed"))
print(json.dumps(result["data"]["output"], indent=2))
```

```typescript
// Save as fous.mts and run with npx tsx fous.mts.
const apiKey = "YOUR_API_KEY";

const response = await fetch("https://api.fous.com/v1/query", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${apiKey}`,
    "Content-Type": "application/json",
  },
  signal: AbortSignal.timeout(180_000),
  body: JSON.stringify({
  "api": "@letterboxd",
  "visibility": "public",
  "operation": "get_film",
  "version": 1,
  "input": {
    "title": "Past Lives"
  },
  "response": {
    "format": "json"
  }
}),
});
type ApiResult = { success: boolean; data?: { output: unknown }; error?: { message: string } };
const result: ApiResult = await response.json();
if (!response.ok || result.success === false) {
  throw new Error(result.error?.message ?? `HTTP ${response.status}`);
}
if (!result.data) throw new Error("Missing API response data");
console.log(result.data.output);
```

## Use from an AI assistant

Connect this tool to Claude Code, Claude Desktop, Cursor, VS Code, Codex and any MCP client as its own MCP server. Each method is a typed tool whose arguments are the method’s input.

- Server URL: `https://api.fous.com/mcp/tools/letterboxd`
- Authorization: `Authorization: Bearer <Fous API key>`

**Tools**

- `get_film`: Get film. 1 credit per completed call. Failed calls without a completed billing receipt are free; completed work can remain charged if delivery is interrupted.
- `list_popular_films`: List popular films. 1 credit per completed call. Failed calls without a completed billing receipt are free; completed work can remain charged if delivery is interrupted.
- `fous_get_run`: the result of a run that was still going, by its `request_id`. Free.

Claude Code:

```bash
claude mcp add --scope user --transport http fous-letterboxd https://api.fous.com/mcp/tools/letterboxd --header "Authorization: Bearer ${FOUS_API_KEY:?Set FOUS_API_KEY to your Fous API key}"
```

To give the assistant every tool, connect `https://api.fous.com/mcp`: it finds one with `fous_search_tools` and runs it with `fous_run_tool`. Setup for other clients: https://fous.com/llms-full.txt.

## Use cases

- Compare film ratings and review activity
- Find popular films by genre and decade
- Check where a film is available to watch
- Explore cast, themes, and directors for a film

## FAQ

### Can I run it with my own inputs?

Yes. Change the inputs in Studio and press Run, or send new inputs from your code, or ask a connected AI assistant.

### Can I call this Letterboxd tool as an API?

Yes. Send a POST request to /v1/query with your Fous API key and the inputs, and get JSON back.

### How much does it cost?

Each completed run costs 1 credit. Failed runs without a completed receipt are free; completed work can remain charged if delivery is interrupted. With pay as you go, a credit costs 1¢. Monthly plans cost less per credit.

### Do I need a Letterboxd account?

No. You only need a Fous account.

### How current is the data?

Fous gets the data from letterboxd.com when you run it. Some results are reused for up to 24 hours, and results that use your account or key are never reused. It was last verified on Sep 29, 2026.

### Where can I watch a particular film?

Get film returns watch services for a film found by title or film link; services depend on location.

### Which films are popular this month?

List popular films returns films in popularity order for a selected period, including this month.

### What are a film’s ratings and popular reviews?

Get film returns a film’s ratings and popular reviews when given its title or film link.

## Related

- [TMDB API](https://fous.com/tools/tmdb.md): TMDB returns movie and TV details, cast, trailers, releases, viewing services, scheduled upcoming movies, and up to 20 homepage trending titles; future episode details depend on published schedules.
- [Netflix API](https://fous.com/tools/netflix.md): Netflix offers weekly global and country Top 10 rankings, all-time popularity rankings based on titles’ first 91 days, and title details with country availability that may lag.
- [IMDb API](https://fous.com/tools/imdb.md): IMDb returns movie, TV, person, episode, chart and Parents Guide details, including available weekly rank changes; missing details are null, and unaired or unrated episodes lack ratings.
- [Rotten Tomatoes API](https://fous.com/tools/rotten-tomatoes.md): Rotten Tomatoes returns movie and TV details, scores, newest reviews, and listings for theaters, coming soon, or at home; series rating counts may be unavailable.
- [Box Office Mojo API](https://fous.com/tools/box-office-mojo.md): Box Office Mojo reports weekend rankings, movie details, daily grosses, and annual leaders; weekend and daily results default to the latest reported period, with some international figures unavailable.
- [Fandango API](https://fous.com/tools/fandango.md): Fandango provides nearby U.S. movie showtimes, formats, local times and ticket links; theater listings for selected dates when available; and movies now playing or coming soon with details when listed.
- [FlixPatrol API](https://fous.com/tools/flixpatrol.md): FlixPatrol provides daily streaming rankings by service and country, plus current country rankings for titles; older dates and some daily-change or Top 10 duration figures are unavailable.
- [The Numbers API](https://fous.com/tools/the-numbers.md): Movie box office, home video sales, budgets, and release details.
- [All Entertainment tools](https://fous.com/tools/category/entertainment)