AnimeFacts API

Beginner's Pick Anime / No Auth Required Beginner HTTPS CORS
Free to Use

Overview

AnimeFacts is a simple REST API with over 100 trivia facts about popular anime series, accessible by an anime slug name. No API key is required and the response is a tiny JSON array — perfect for adding a fun "did you know" widget to any anime fan site or flash card app.

Beginner Tip

Use slug names like "fma_brotherhood" or "attack_on_titan" in the URL. The full list of supported anime slugs is on the GitHub README at https://chandan-02.github.io/anime-facts-rest-api/.

Available Data

The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.

anime/manga title
episode count
airing status
synopsis
rating score
genre list

Example Response

Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.

JSON Response · Illustrative
{
  "id": 1,
  "title": "Attack on Titan",
  "episodes": 75,
  "status": "Finished Airing",
  "score": 8.5,
  "genres": [
    "Action",
    "Drama",
    "Fantasy"
  ],
  "synopsis": "In a world where humanity lives within enormous walled cities..."
}

Field Reference

success True when the anime slug was recognized and facts were returned
data[].fact_id Sequential ID of the fact within that anime
data[].fact The trivia fact text about the anime

Implementation Example

Calls a real endpoint of this API. Replace any placeholder credentials with your own key.

Request
const url = "https://anime-facts-rest-api.herokuapp.com/api/v1/fma_brotherhood";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.

404 Not Found The anime slug is unrecognized — slugs use underscores and must match exactly
✓ Check the supported slug list on the project GitHub page before querying
Long response time on first call The Heroku free dyno may be sleeping and takes 10-30 seconds to wake
✓ Wait a moment and retry — subsequent requests will be fast once the dyno is awake
fact_id out of range Requesting a specific fact number that exceeds the total for that anime
✓ Omit the fact_id to receive all facts, then check the array length before targeting a specific index

Metadata Score Breakdown

Estimated from metadata — endpoint not independently tested

This score is estimated from observable metadata — HTTPS support, authentication model, declared CORS, and documentation reachability — because the API requires authentication or exposes no publicly testable endpoint. The five-signal breakdown is only shown for live-tested APIs.

Metadata estimate · endpoint not independently tested

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS YES
Category Anime
Difficulty Beginner
Listing details not endpoint-verified

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