API Layer
APILayer is a curated API marketplace offering 178+ production-ready APIs across categories including finance, currency exchange, geolocation, weather, AI/ML, security, and developer tools, with API key authentication, free tiers, and comprehensive documentation. It hosts well-known APIs including IPstack, Currencylayer, Fixer, Weatherstack, Aviationstack, and Mediastack.
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles API Layer the way a machine reads it — 27 machine-readable artifacts across 1 API, 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 — API Layer scores 25.0/100 (emerging), with a separate agent-readiness read of 7/100 (human only). 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
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile API Layer
Each block below is one kind of artifact we hold for API Layer. 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 1
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.
APILayer Marketplace
The APILayer Marketplace provides access to 178+ reliable, scalable APIs across categories like AI/ML, finance, geolocation, security, scraping, marketing, communication, and de...
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.
Api Layer Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Api Layer Finops
FINOPSFeatures 6
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
API Marketplace
Curated catalog of 178+ production-ready APIs across 15+ categories with unified discovery and subscription management.
API Key Authentication
Single API key authentication model unified across all marketplace APIs for simplified integration.
Free Tiers
All marketplace APIs offer free plans allowing developers to get started without upfront cost.
Low Latency Infrastructure
Feature-rich APIs optimized for low latency and high availability for enhanced developer experience.
Multi-Language Code Examples
Comprehensive documentation with code examples in multiple programming languages for every API.
Affiliate Program
Earn commissions by referring developers and businesses to the APILayer marketplace.
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.
Use Cases 6
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
Content Personalization by Location
Use IPstack or Positionstack to tailor content and offers based on visitor geolocation.
Currency Conversion
Integrate Currencylayer or Fixer for real-time and historical currency exchange data in financial applications.
Fraud Prevention
Monitor and block suspicious requests using geolocation and IP intelligence APIs.
Weather Data Integration
Embed real-time and forecast weather data into applications using Weatherstack.
Aviation Data Access
Access real-time flight tracking, schedules, and airline data via Aviationstack.
Regulatory Compliance Automation
Automate geographic compliance checks using location intelligence APIs.
Integrations 10
Pre-built integrations with other platforms tell you where this provider already fits in a stack.
Pre-built integrations with other platforms and tools.
IPstack
Geolocation API for IP address intelligence and location detection.
Currencylayer
Real-time and historical currency exchange rate API.
Fixer
Foreign exchange rates and currency conversion API.
Weatherstack
Real-time and historical weather data API.
Aviationstack
Real-time flight tracking, schedules, and airline data API.
Mediastack
Real-time news data aggregation API.
Numverify
Global phone number validation and lookup API.
Serpstack
Real-time Google search results and SERP data API.
Pdflayer
HTML to PDF conversion API.
Screenshotlayer
URL screenshot and website capture API.
Scroll within the panel for all 10 ·
Resources
Every other property we hold for API Layer — 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.
Get Started 1
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Company 3
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/api-layer · machine-readable index on apis.io