How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Superhero API (akabab) website screenshot

Superhero API (akabab)

Open-source REST API exposing 731 superheroes and villains drawn from multiple comic universes (Marvel, DC, Dark Horse, Image, and more) under a single, unauthenticated JSON surface. The dataset is rebuilt from the original superheroapi.com source, cleaned up, and republished as static JSON files served from GitHub Pages and the jsDelivr CDN. Each character includes powerstats, appearance, biography, work, connections, and a multi-resolution image set.

agent aware

Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.

Kin Score

API Evangelist profiles Superhero API (akabab) the way a machine reads it — 33 machine-readable artifacts across 7 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Superhero API (akabab) scores 36.8/100 (thin), with a separate agent-readiness read of 23/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 36.8/100 · thin
Contract Quality 15.5 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 0.7 / 13
Governance 8.3 / 12
Discoverability 8.2 / 10
Agent readiness — 23/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract derived 2.5 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples documented 1.8 / 7
Rate-Limit Signaling documented 3.5 / 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
Superhero API (akabab) Kin Score — API readiness rating by API Evangelist

Put this on your own site. The badge is drawn live from Superhero API (akabab)'s current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.

<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/superheroes/"
   title="Superhero API (akabab) on API Evangelist — API profile and Kin Score">
  <img src="https://apis.io/badge/superheroes.svg"
       alt="Superhero API (akabab) Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>

More shapes, themes and sizes → · Score as JSON · How badges work

How we profile Superhero API (akabab)

Each block below is one kind of artifact we hold for Superhero API (akabab). For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 7

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

Superhero API (akabab) Appearance API

Per-character physical appearance slices.

Superhero API (akabab) Biography API

Per-character biographical slices.

Superhero API (akabab) Characters API

Full character records and the consolidated dataset.

Superhero API (akabab) Connections API

Per-character group affiliations and relatives.

Superhero API (akabab) Images API

Multi-resolution character image assets.

Superhero API (akabab) Powerstats API

Per-character powerstats slices (intelligence, strength, etc.).

Superhero API (akabab) Work API

Per-character occupation and base slices.

Scroll within the panel for all 7 ·

Open Collections 9

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Scroll within the panel for all 9 ·

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Superheroes Rate Limits

0 limits

RATE LIMITS

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Superheroes Context

36 classes · 1 properties

JSON-LD

Spectral Rules 2

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

Superhero API (akabab) API Rules

5 rules · 3 warnings

SPECTRAL

Superhero API (akabab) API Rules

9 rules · 6 errors · 3 warnings

SPECTRAL

JSON Schema 7

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

Appearance

6 properties

JSON SCHEMA

Biography

7 properties

JSON SCHEMA

Character

9 properties

JSON SCHEMA

Connections

2 properties

JSON SCHEMA

Images

4 properties

JSON SCHEMA

Powerstats

6 properties

JSON SCHEMA

Work

2 properties

JSON SCHEMA

Scroll within the panel for all 7 ·

JSON Structure 1

JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.

JSON Structure definitions describing this provider's data shapes.

Superheroes Character Structure

9 properties

JSON STRUCTURE

Examples 2

Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.

Example request and response payloads for these APIs.

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Superheroes Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Superheroes Agentic Access

8 operations

8 operations · 0 acting

AGENTIC

Resources

Every other property we hold for Superhero API (akabab) — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

← All providers · Data indexed from github.com/api-evangelist/superheroes · machine-readable index on apis.io

Where this information came from

This is an independent, third-party profile of Superhero API (akabab), published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.