SteadyAPI

SteadyAPI is a multi-domain data-as-a-service platform exposing a single REST/JSON API across finance (real-time and historical stock, options and crypto market data), real estate, sports (MLB, NHL), e-commerce (Amazon, AliExpress), travel (Booking.com), and social/web data (Reddit, Twitter/X, Instagram, vehicles/VIN, and web scraping). Endpoints are versioned in the URL path (v1/v2/v3), authenticated with a personal access token via a Bearer header or apikey query parameter, rate limited to 15 requests per second, and sold on four subscription tiers by monthly request volume.

SteadyAPI publishes 1 API on the APIs.io network: SteadyAPI. Tagged areas include Data, Finance, Stock Market, Social-Media, and Reddit.

SteadyAPI’s developer surface includes authentication, documentation, pricing, support, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

32.0/100 thin Agent 8/100 agent aware Full breakdown ↓
scored 2026-09-21 · rubric v0.22.0

2 APIs

Data Finance Stock Market Social-Media Reddit Data as a Service Web Data Alternative Data

Kin Score

Kin Score How this is scored →
scored 2026-09-21 · rubric v0.22.0

Composite quality — 32.0/100 · thin

Contract Quality 0.0 / 25

Developer Ergonomics 6.2 / 20

Access Clarity 15.3 / 20

Operational Transparency 2.7 / 13

Contract Governance 0.0 / 12

Discoverability 7.8 / 10

Agent readiness — 8/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/steadyapi: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 2

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

SteadyAPI

REST/JSON API providing stock market, options, crypto, real estate, sports, e-commerce, social media, travel, and web-scraping data. Bearer-token or apikey auth, 15 req/sec rate...

Reddit Data API

REST/JSON API for fetching Reddit posts, comments, voting data, subreddit statistics, and user activity. Endpoints under /v1/reddit/ include /search, /posts, /post, /subreddit/p...

Pricing Plans 1

Published pricing tiers and plan structures.

Steadyapi Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Steadyapi Rate Limits

1 limits

RATE LIMITS

Security Posture 2

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

Steadyapi Authentication

2 schemes

SECURITY

Steadyapi Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

Lifecycle

Lifecycle

ErrorCatalog

ErrorCatalog

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

Pricing

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

name: SteadyAPI
aid: steadyapi
description: SteadyAPI is a multi-domain data-as-a-service platform exposing a single REST/JSON API across finance (real-time
  and historical stock, options and crypto market data), real estate, sports (MLB, NHL), e-commerce (Amazon, AliExpress),
  travel (Booking.com), and social/web data (Reddit, Twitter/X, Instagram, vehicles/VIN, and web scraping). Endpoints are
  versioned in the URL path (v1/v2/v3), authenticated with a personal access token via a Bearer header or apikey query parameter,
  rate limited to 15 requests per second, and sold on four subscription tiers by monthly request volume.
tags:
- Data
- Finance
- Stock Market
- Social-Media
- Reddit
- Data as a Service
- Web Data
- Alternative Data
tags_raw:
- Data
- Finance
- Stock Market
- Social Media
- Reddit
- API
- Data as a Service
- Web Data
- Alternative Data
common:
- type: RateLimits
  url: rate-limits/steadyapi-rate-limits.yml
- type: Plans
  url: plans/steadyapi-plans-pricing.yml
- type: Conventions
  url: conventions/steadyapi-conventions.yml
- type: Authentication
  url: authentication/steadyapi-authentication.yml
- type: Lifecycle
  url: lifecycle/steadyapi-lifecycle.yml
- type: ErrorCatalog
  url: errors/steadyapi-problem-types.yml
- type: LLMsTxt
  url: llms/steadyapi-llms.txt
- type: TermsOfService
  url: https://steadyapi.com/pages/terms-and-conditions
- type: Login
  url: https://steadyapi.com/login
- type: DomainSecurity
  url: security/steadyapi-domain-security.yml
- type: Website
  url: https://steadyapi.com
- type: Documentation
  url: https://docs.steadyapi.com
- type: Pricing
  url: https://steadyapi.com/pricing
- type: PrivacyPolicy
  url: https://steadyapi.com/pages/privacy-policy
- type: Support
  url: https://steadyapi.com/pages/contact
maintainers:
- FN: SteadyAPI
  url: https://steadyapi.com
image: https://steadyapi.com/logo/steadyapi-white-api.svg
apis:
- name: SteadyAPI
  description: REST/JSON API providing stock market, options, crypto, real estate, sports, e-commerce, social media, travel,
    and web-scraping data. Bearer-token or apikey auth, 15 req/sec rate limit.
  humanURL: https://docs.steadyapi.com
  baseURL: https://api.steadyapi.com
  tags:
  - Financial Data
  - Stock Market
  - Options
  - Cryptocurrency
  - Real-Estate
  - E-Commerce
  - Social-Media
  - Sports Data
  - Travel
  - Web Scraping
  - Market Data
  - REST API
  tags_raw:
  - financial-data
  - stock-market
  - options
  - cryptocurrency
  - real-estate
  - e-commerce
  - social-media
  - sports-data
  - travel
  - web-scraping
  - market-data
  - rest-api
  properties:
  - type: Postman
    url: postman/steadyapi-collection.json
  - type: Postman
    name: Postman (provider-hosted)
    url: https://docs.steadyapi.com/collection.json
  - type: Documentation
    url: https://docs.steadyapi.com
  aid: steadyapi:steadyapi
  image: https://steadyapi.com/logo/steadyapi-white-api.svg
- name: Reddit Data API
  description: REST/JSON API for fetching Reddit posts, comments, voting data, subreddit statistics, and user activity. Endpoints
    under /v1/reddit/ include /search, /posts, /post, /subreddit/popular, /subreddit/info, /subreddit/new, /subreddit/comments,
    /user-stats, and /user-data. Bearer token or apikey parameter authentication; rate limited to 15 requests per second.
  humanURL: https://steadyapi.com/pages/reddit-api
  baseURL: https://api.steadyapi.com
  tags:
  - Reddit
  - Social-Media
  - Social Listening
  - Sentiment Analysis
  - Web Data
  - Data as a Service
  - Alternative Data
  - AI Training Data
  tags_raw:
  - reddit
  - social-media
  - social-listening
  - sentiment-analysis
  - web-data
  - data-as-a-service
  - alternative-data
  - ai-training-data
  properties:
  - type: Documentation
    url: https://docs.steadyapi.com/#reddit
  aid: steadyapi:reddit-data-api
  image: https://steadyapi.com/logo/steadyapi-white-api.svg
url: https://steadyapi.com
created: '2026-09-21'
modified: '2026-09-21'
position: Producing
x-enrichment:
  date: '2026-09-21'
  status: enriched
  artifacts_added: 12
  pass: local-v5

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