Wildcard

Wildcard is a PvP collectible-card-based MOBA (multiplayer online battle arena) developed by Playful Studios and currently in Early Access on Steam. Players pick Champions, assemble decks of Summon creature cards, and compete in real-time strategic arena battles where deck-building matters as much as mechanical skill. The game ships collectible cosmetics (Wildpass, Flair, Wildfile) with a web3 angle — the Wildpass is a Polygon NFT collection tradeable on Magic Eden — and is backed as a portfolio company of the crypto venture firm Paradigm. Its backend gaming services are built on Beamable and Unreal Engine. No first-party public developer API, SDK, or documentation portal is published; this profile is a company/lead record in the API Evangelist network. Sector: gaming.

Wildcard is profiled on the APIs.io network. Tagged areas include Company, Gaming, MOBA, Card Game, and Web3.

Wildcard’s developer surface includes engineering blog, support, signup flow, and 2 more developer resources.

🌐 Visit website 📡 Source on GitHub

5.6/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

CompanyGamingMOBACard GameWeb3NFTPolygonPlayful Studios

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 5.6/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 2.2 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 1.4 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/wildcard: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: wildcard
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/wildcard.png
name: Wildcard
description: 'Wildcard is a PvP collectible-card-based MOBA (multiplayer online battle arena) developed by Playful Studios
  and currently in Early Access on Steam. Players pick Champions, assemble decks of Summon creature cards, and compete in
  real-time strategic arena battles where deck-building matters as much as mechanical skill. The game ships collectible cosmetics
  (Wildpass, Flair, Wildfile) with a web3 angle — the Wildpass is a Polygon NFT collection tradeable on Magic Eden — and is
  backed as a portfolio company of the crypto venture firm Paradigm. Its backend gaming services are built on Beamable and
  Unreal Engine. No first-party public developer API, SDK, or documentation portal is published; this profile is a company/lead
  record in the API Evangelist network. Sector: gaming.'
url: https://raw.githubusercontent.com/api-evangelist/wildcard/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- paradigm
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Gaming
- MOBA
- Card Game
- Web3
- NFT
- Polygon
- Playful Studios
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/wildcard-domain-security.yml
- type: Website
  url: https://www.wildcardgame.com
- type: Blog
  url: https://www.wildcardgame.com/news
- type: Support
  url: https://discord.com/invite/QZRgv9M2UZ
- type: SignUp
  url: https://www.wildcardgame.com/playtesting
x-enrichment:
  date: '2026-07-21'
  status: minimal
  artifacts_added: 1
  pass: local-v1