Anime Tournament API — free mock REST API for testing

An original anime-style tournament with transformations, rankings and deliberately dramatic power scaling.

The Anime Tournament API uses original characters rather than licensed ones, and exists to exercise bracket logic: fighters with power levels, matches seeded from them, and rounds that only advance when the previous one is complete. Small surface, strict ordering rules.

Base URL: https://funapi.dev/api/anime/v1 · 5 endpoints · OpenAPI 3.1 spec and Postman collection available. New here? Read the getting started guide.

Example request and response

GET https://funapi.dev/api/anime/v1/fighters — List fighters, filter by rank. No token, no signup:

curl -i https://funapi.dev/api/anime/v1/fighters

answers 200 OK with:

{
  "total": 3,
  "data": [
    {
      "id": 1,
      "name": "Nova Fist",
      "element": "plasma",
      "power": 9100,
      "rank": "S"
    },
    {
      "id": 2,
      "name": "Mochi Ronin",
      "element": "wind",
      "power": 7200,
      "rank": "A"
    },
    {
      "id": 3,
      "name": "Captain Kawaii",
      "element": "water",
      "power": 6800,
      "rank": "A"
    }
  ]
}

Open and run this endpoint

What you can practise here

• Report a result for a round that has not started and read the 422.
• Enter a fighter twice and check the duplicate response.
• Advance the bracket and confirm the seeding matches the power levels you supplied.
• Request a match id that does not exist for the 404.

fighters

heroes and rivals

• GET /anime/v1/fighters — List fighters, filter by rank · Responds with 200 Link to this endpoint
• GET /anime/v1/fighters/{id} — Get fighter power profile · Responds with 200 404 Link to this endpoint
• POST /anime/v1/fighters/{id}/transform — Transform a fighter and increase power (requires Bearer auth) · Responds with 200 422 Link to this endpoint

matches

tournament battles

• POST /anime/v1/matches — Run a deterministic tournament match (requires Bearer auth) · Responds with 201 400 Link to this endpoint
• GET /anime/v1/matches — List match history · Responds with 200 Link to this endpoint

Related APIs

• Friends API — Characters, episodes & quotes from the coffee-house gang.
• Movies API — QA-themed cinema. Sort, filter, rate.
• Harry Potter API — Houses, students & spells from a magic school.
• Star Wars API — Characters, planets & starships from a galaxy far away.

All 39 mock REST APIs

Last updated 6 September 2026