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 is listed with 2 APIs on the APIs.io network, including SteadyAPI, and 1 more. Tagged areas include Data, Finance, Stock Market, Social Media, and Reddit.

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

🌐 Visit website 📡 Profile data on GitHub

26.4/100 thin ▼ -6.4 Agent 8/100 agent aware Front door AI 1/6 silent Heartbeat 74/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

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 2026-11-06 · rubric v0.27.0

Composite quality — 26.4/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 9.2 / 17

Operational Transparency 2.3 / 11

Contract Governance 0.0 / 10

Discoverability 6.4 / 9

Regulatory Posture 2.4 / 15

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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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.

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.

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

10 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 26.2 — up to +14.8 composite points
Contract Governance scores 0.0 — up to +12.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/steadyapi/apis.yml: open an issue on github.com/api-evangelist/steadyapi to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Postman Collections

measured — observed by APIs.io (published)

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...

SteadyAPI pricing

Prices published by SteadyAPI.

Plan	Price
Starter	$14.95 USD/ month
Developer	$39.95 USD/ month
Business	$89.95 USD/ month
Enterprise	$299.95 USD/ month

Plan details, limits and sources →

Rate limits

Global request rate: 15 requests per second

Rate-limit details →

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 2

The organization behind the API

Blog

Blog

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.
x-docs-platform: slate
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
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
- Social-Media
common:
- url: https://steadyapi.com/blogs
  type: Blog
- 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
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
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
  - Real-Estate
  - Social-Media
  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
  - Social-Media
  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: '2026-10-06'
position: Producing
x-enrichment:
  date: '2026-09-21'
  status: enriched
  artifacts_added: 12
  pass: local-v5

SteadyAPI — frequently asked questions

Does SteadyAPI have an API?

Yes. APIs.io lists 2 APIs from SteadyAPI, including SteadyAPI and Reddit Data API.

How do I authenticate with the SteadyAPI?

SteadyAPI uses bearer-token authentication (2 schemes). The details are profiled on APIs.io as Steadyapi Authentication.

How much does the SteadyAPI cost?

SteadyAPI publishes its prices; its Starter plan is $14.95 USD/ month as of 2026-09-21. APIs.io lists 4 pricing plans for SteadyAPI, with each plan's price, limits and inclusions under Pricing on this page.

Is the SteadyAPI ready for AI agents?

SteadyAPI has a Kin Score of 26.4 out of 100 (thin) and an Agent Readiness score of 7.9 (agent-aware), scored by API Evangelist on 2026-11-06.

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