Vast.ai
Vast.ai is a decentralized GPU marketplace that matches buyers with 40+ datacenters and individual hosts renting out NVIDIA GPUs at market prices. It exposes a REST API, Python SDK, and vastai CLI for searching GPU offers, renting instances, attaching persistent volumes, and running serverless workloads across 68+ GPU types including H100, H200, B200, A100, and consumer RTX cards.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Vast.ai the way a machine reads it — 28 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 — Vast.ai scores 54.0/100 (developing), with a separate agent-readiness read of 48/100 (agent ready). 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 Vast.ai
Each block below is one kind of artifact we hold for Vast.ai. 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.
Vast.ai REST API
The Vast.ai REST API is the control plane for the GPU marketplace. It supports searching offers across hosts, renting and managing instances, configuring machines and templates,...
Vast.ai Accounts API
The Accounts API from Vast.ai — 13 operation(s) for accounts.
Vast.ai Billing API
The Billing API from Vast.ai — 4 operation(s) for billing.
Vast.ai Instances API
The Instances API from Vast.ai — 14 operation(s) for instances.
Vast.ai Machines API
The Machines API from Vast.ai — 10 operation(s) for machines.
Vast.ai Network Volumes API
The Network Volumes API from Vast.ai — 4 operation(s) for network volumes.
Vast.ai Search API
The Search API from Vast.ai — 3 operation(s) for search.
Vast.ai Serverless API
The Serverless API from Vast.ai — 9 operation(s) for serverless.
Vast.ai Team API
The Team API from Vast.ai — 9 operation(s) for team.
Vast.ai Templates API
The Templates API from Vast.ai — 1 operation(s) for templates.
Vast.ai Volumes API
The Volumes API from Vast.ai — 4 operation(s) for volumes.
Scroll within the panel for all 11 ·
Open Collections 1
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).
Vast.ai API
OPEN COLLECTIONGraphQL 1
Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.
GraphQL schemas published by this provider.
Vast.ai GraphQL API
Vast.ai is a decentralized GPU marketplace for AI and ML workloads. The API covers instance rental, machine offers, container management, SSH access configuration, and billing f...
GRAPHQLPricing 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.
Vast Ai 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.
Vast Ai 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.
GPU Marketplace
Market-driven matching of buyers with 40+ datacenters and individual hosts across 68+ GPU types.
On-Demand Instances
Per-second-billed GPU rentals with guaranteed uptime, with no minimum hours.
Interruptible Instances
Fault-tolerant workloads priced 50%+ cheaper than on-demand with potential preemption.
Reserved Capacity
Up to 50% discounts on 1, 3, or 6-month commitments for stable workloads.
Serverless Endpoints
Serverless GPU workers built on the pyworker agent for autoscaling inference.
Templates
Pre-configured instance templates for fast launching of common workloads.
Security Posture 3
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.
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.
Integrations 2
Pre-built integrations with other platforms tell you where this provider already fits in a stack.
Pre-built integrations with other platforms and tools.
Docker
Bring-your-own Docker image support across all rental instances.
SSH
Direct SSH access to rented instances for development and orchestration.
Resources
Every other property we hold for Vast.ai — 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 3
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 2
Properties that don't map to a standard resource type
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