UNIX System Call
Core UNIX/POSIX system calls providing low-level operating system interfaces for process management, file operations, interprocess communication, and system control.
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 UNIX System Call the way a machine reads it — 37 machine-readable artifacts across 11 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 — UNIX System Call scores 25.2/100 (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 UNIX System Call
Each block below is one kind of artifact we hold for UNIX System Call. 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 11
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.
File System Operations API
System calls for file and directory manipulation, including open, read, write, and file descriptor management.
Process Management API
System calls for process creation, execution, termination, and control.
Interprocess Communication API
System calls for communication between processes including pipes, signals, and shared memory.
Memory Management API
System calls for memory allocation, mapping, and protection.
System Information API
System calls for retrieving system information and configuration.
POSIX Threads API
POSIX threads (pthreads) interface for creating and managing threads, mutexes, condition variables, and thread-specific data.
I/O Multiplexing API
System calls for monitoring multiple file descriptors for readiness, enabling event-driven and non-blocking I/O patterns.
POSIX Semaphores API
POSIX named and unnamed semaphore interfaces for process and thread synchronization.
POSIX Message Queues API
POSIX message queue interfaces for exchanging messages between processes with priority support.
Terminal and Device I/O API
POSIX terminal interface (termios) and device control system calls for managing terminals, serial ports, and device parameters.
File Locking API
POSIX advisory file locking interfaces for coordinating file access between processes.
Scroll within the panel for all 11 ·
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.
Unix Plans Pricing
PLANSRate 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.
Unix 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.
Unix Finops
FINOPSFeatures 10
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.
Scroll within the panel for all 10 ·
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.
Integrations 6
Pre-built integrations with other platforms tell you where this provider already fits in a stack.
Pre-built integrations with other platforms and tools.
Resources
Every other property we hold for UNIX System Call — 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 5
Reference material describing how the API behaves
Access & Security 1
Authentication, authorization, and security posture
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/unix · machine-readable index on apis.io