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.

Vast.ai publishes 11 API contracts indexed on the APIs.io network, including Accounts API, Billing API, Instances API, and 8 more. Tagged areas include Artificial Intelligence, Cloud, Compute, GPU, and Machine Learning.

The Vast.ai catalog on APIs.io includes 1 Spectral governance ruleset.

Vast.ai’s developer surface includes authentication, documentation, developer portal, signup flow, pricing, engineering blog, support, and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

52.2/100 developing ▬ flat Agent 41/100 agent ready Front door AI 6/6 dominant Heartbeat 94/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 MCP Servers 6 Features

Artificial Intelligence Cloud Compute GPU Machine Learning Marketplace Serverless

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Information Technology Management

BC-600

Instances

PUT /api/v0/asks/{id}/ DELETE /api/v0/instances/{id}/ PUT /api/v0/instances/command/{id}/

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 52.2/100 · developing

Contract Quality 11.7 / 19

Developer Ergonomics 7.9 / 15

Access Clarity 11.6 / 15

Operational Transparency 0.8 / 10

Contract Governance 1.2 / 9

Discoverability 5.6 / 8

Regulatory Posture 3.4 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 41/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 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 0 / 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):

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
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Pagination +5 pts — share of collection GETs (an array, or one wrapped in data/items/results ...) that declare a page/limit/offset/cursor parameter, a Link header or a next/cursor field; na with no collection GETs

6 more unmet checks in the Agent Readiness table above.

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

Operational Transparency scores 7.9 — up to +12.0 composite points
Contract Governance scores 13.6 — up to +10.4 composite points
Developer Ergonomics scores 52.4 — up to +9.5 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/vast-ai/apis.yml: open an issue on github.com/api-evangelist/vast-ai 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Agent Skills (SKILL.md packages)	long-tail	2.5 (thin)	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

APIs 11

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 for all 11

Open Collections 11

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Vast.ai Accounts API

OPEN COLLECTION

Vast.ai Accounts Billing API

OPEN COLLECTION

Vast.ai Accounts Instances API

OPEN COLLECTION

Vast.ai Accounts Machines API

OPEN COLLECTION

Vast.ai Accounts Network Volumes API

OPEN COLLECTION

Vast.ai Accounts Search API

OPEN COLLECTION

Vast.ai Accounts Serverless API

OPEN COLLECTION

Vast.ai Accounts Team API

OPEN COLLECTION

Vast.ai Accounts Templates API

OPEN COLLECTION

Vast.ai Accounts Volumes API

OPEN COLLECTION

Vast.ai API

OPEN COLLECTION

Scroll for all 11

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Vast.ai MCP Server

Remote MCP server at docs.vast.ai over HTTP; 3 tools listed.

MCP SERVER

Vast.ai API pricing

Prices published by Vast.ai, read 2026-10-07 from vast.ai/pricing.

Plan	Price
On-Demand	Per-second billing Includes: Guaranteed uptime. Best for production.
Interruptible	50%+ cheaper. Includes: Best for batch training. Preemptible — may be reclaimed
Reserved	Contact Sales Includes: 1, 3, or 6 month terms

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Pro Tier Default: 120 requests per minute

Compiled by API Evangelist, not yet checked against Vast.ai's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Vast Ai Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Vast Ai Rate Limits

2 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Vast.ai

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Vast Ai Finops

FINOPS

Features 6

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.

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Vast.ai API Rules

63 rules · 50 errors 12 warnings 1 info

SPECTRAL

Security Posture 3

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

Vast Ai Authentication

apiKey/http · 3 schemes

SECURITY

Vast Ai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Vast Ai Trust Center

SOC 2, ISO 27001, PCI DSS, HIPAA, GDPR

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Vast Ai Agentic Access

89 operations · 57 acting · 2 human-in-the-loop

89 operations · 57 acting

AGENTIC

Integrations 2

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

Get Started 3

Portal, sign-up, and the first successful call

Portal

Portal

Signup

Signup

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

CLI

SDKs

Examples

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 5

Pricing, plans, and the legal terms of use

FinOps

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Other 3

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Developer

Developer

Source (apis.yml)

aid: vast-ai
name: Vast.ai
description: 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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/vast-ai.png
url: https://raw.githubusercontent.com/api-evangelist/vast-ai/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.23'
type: Index
access: 3rd-Party
position: Producing
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
x-docs-hosting: vercel
tags:
- Artificial Intelligence
- Cloud
- Compute
- GPU
- Machine Learning
- Marketplace
- Serverless
tags_raw:
- AI
- Cloud
- Compute
- GPU
- Machine Learning
- Marketplace
- Serverless
- Machine-Learning
apis:
- aid: vast-ai:rest-api
  name: Vast.ai REST API
  description: 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, attaching persistent volumes, managing serverless
    endpoints, and querying billing and usage. Authentication uses bearer tokens issued from the Keys management page.
  humanURL: https://docs.vast.ai/api/
  baseURL: https://console.vast.ai/api/v0
  tags:
  - Billing
  - GPU
  - Instances
  - Marketplace
  - REST
  - Search
  - Serverless
  - Templates
  - Volumes
  properties:
  - type: Documentation
    url: https://docs.vast.ai/api/
  - type: Authentication
    url: https://docs.vast.ai/api/authentication
- aid: vast-ai:vast-ai-accounts-api
  name: Vast.ai Accounts API
  description: The Accounts API from Vast.ai — 13 operation(s) for accounts.
  humanURL: https://docs.vast.ai/api/
  baseURL: https://console.vast.ai/api/v0
  tags:
  - Account
  tags_raw:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/vast-ai-accounts-api-openapi.yml
- aid: vast-ai:vast-ai-billing-api
  name: Vast.ai Billing API
  description: The Billing API from Vast.ai — 4 operation(s) for billing.
  humanURL: https://docs.vast.ai/api/
  baseURL: https://console.vast.ai/api/v0
  tags:
  - Billing
  properties:
  - type: OpenAPI
    url: openapi/vast-ai-billing-api-openapi.yml
- aid: vast-ai:vast-ai-instances-api
  name: Vast.ai Instances API
  description: The Instances API from Vast.ai — 14 operation(s) for instances.
  humanURL: https://docs.vast.ai/api/
  baseURL: https://console.vast.ai/api/v0
  tags:
  - Instances
  properties:
  - type: OpenAPI
    url: openapi/vast-ai-instances-api-openapi.yml
- aid: vast-ai:vast-ai-machines-api
  name: Vast.ai Machines API
  description: The Machines API from Vast.ai — 10 operation(s) for machines.
  humanURL: https://docs.vast.ai/api/
  baseURL: https://console.vast.ai/api/v0
  tags:
  - Machines
  properties:
  - type: OpenAPI
    url: openapi/vast-ai-machines-api-openapi.yml
- aid: vast-ai:vast-ai-network-volumes-api
  name: Vast.ai Network Volumes API
  description: The Network Volumes API from Vast.ai — 4 operation(s) for network volumes.
  humanURL: https://docs.vast.ai/api/
  baseURL: https://console.vast.ai/api/v0
  tags:
  - Network Volumes
  properties:
  - type: OpenAPI
    url: openapi/vast-ai-network-volumes-api-openapi.yml
- aid: vast-ai:vast-ai-search-api
  name: Vast.ai Search API
  description: The Search API from Vast.ai — 3 operation(s) for search.
  humanURL: https://docs.vast.ai/api/
  baseURL: https://console.vast.ai/api/v0
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/vast-ai-search-api-openapi.yml
- aid: vast-ai:vast-ai-serverless-api
  name: Vast.ai Serverless API
  description: The Serverless API from Vast.ai — 9 operation(s) for serverless.
  humanURL: https://docs.vast.ai/api/
  baseURL: https://console.vast.ai/api/v0
  tags:
  - Serverless
  properties:
  - type: OpenAPI
    url: openapi/vast-ai-serverless-api-openapi.yml
- aid: vast-ai:vast-ai-team-api
  name: Vast.ai Team API
  description: The Team API from Vast.ai — 9 operation(s) for team.
  humanURL: https://docs.vast.ai/api/
  baseURL: https://console.vast.ai/api/v0
  tags:
  - Team
  properties:
  - type: OpenAPI
    url: openapi/vast-ai-team-api-openapi.yml
- aid: vast-ai:vast-ai-templates-api
  name: Vast.ai Templates API
  description: The Templates API from Vast.ai — 1 operation(s) for templates.
  humanURL: https://docs.vast.ai/api/
  baseURL: https://console.vast.ai/api/v0
  tags:
  - Templates
  properties:
  - type: OpenAPI
    url: openapi/vast-ai-templates-api-openapi.yml
- aid: vast-ai:vast-ai-volumes-api
  name: Vast.ai Volumes API
  description: The Volumes API from Vast.ai — 4 operation(s) for volumes.
  humanURL: https://docs.vast.ai/api/
  baseURL: https://console.vast.ai/api/v0
  tags:
  - Volumes
  properties:
  - type: OpenAPI
    url: openapi/vast-ai-volumes-api-openapi.yml
common:
- type: RateLimits
  url: rate-limits/vast-ai-rate-limits.yml
- type: FinOps
  url: finops/vast-ai-finops.yml
- type: Plans
  url: plans/vast-ai-plans-pricing.yml
- type: CapabilityMap
  url: capabilities/vast-ai-capability-edges.yml
  name: Vast.ai Business Capability Map
- type: AgenticAccess
  url: agentic-access/vast-ai-agentic-access.yml
- type: TrustCenter
  url: security/vast-ai-trust-center.yml
- type: DomainSecurity
  url: security/vast-ai-domain-security.yml
- type: Authentication
  url: authentication/vast-ai-authentication.yml
- type: Website
  url: https://vast.ai
- type: Developer
  url: https://docs.vast.ai
- type: Documentation
  url: https://docs.vast.ai
- type: Portal
  url: https://cloud.vast.ai
- type: Signup
  url: https://cloud.vast.ai/create
- type: Login
  url: https://cloud.vast.ai/login
- type: Pricing
  url: https://vast.ai/pricing
- type: Blog
  url: https://vast.ai/blog
- type: TermsOfService
  url: https://vast.ai/terms
- type: PrivacyPolicy
  url: https://vast.ai/privacy
- type: Support
  url: https://vast.ai/contact
- type: GitHubOrganization
  url: https://github.com/vast-ai
- type: LinkedIn
  url: https://www.linkedin.com/company/vast-ai
- name: vastai CLI
  url: https://github.com/vast-ai/vast-cli
  type: CLI
- name: Vast.ai Python SDK
  url: https://github.com/vast-ai/vast-sdk
  type: SDKs
- name: Vast.ai Base Image
  url: https://github.com/vast-ai/base-image
  type: Examples
- type: Features
  data:
  - name: GPU Marketplace
    description: Market-driven matching of buyers with 40+ datacenters and individual hosts across 68+ GPU types.
  - name: On-Demand Instances
    description: Per-second-billed GPU rentals with guaranteed uptime, with no minimum hours.
  - name: Interruptible Instances
    description: Fault-tolerant workloads priced 50%+ cheaper than on-demand with potential preemption.
  - name: Reserved Capacity
    description: Up to 50% discounts on 1, 3, or 6-month commitments for stable workloads.
  - name: Serverless Endpoints
    description: Serverless GPU workers built on the pyworker agent for autoscaling inference.
  - name: Templates
    description: Pre-configured instance templates for fast launching of common workloads.
- type: GPUs
  data:
  - name: NVIDIA B200
    description: Blackwell-generation flagship GPU available across hosts.
  - name: NVIDIA H200
    description: 141GB HBM3e GPU available across hosts.
  - name: NVIDIA H100
    description: 80GB Hopper GPU widely available across the marketplace.
  - name: NVIDIA A100
    description: 80GB Ampere GPU widely available across the marketplace.
  - name: NVIDIA RTX 4090
    description: 24GB consumer GPU, popular for inference and fine-tuning.
  - name: NVIDIA RTX 3060
    description: 12GB consumer GPU at entry-level price points.
- type: Integrations
  data:
  - name: Docker
    description: Bring-your-own Docker image support across all rental instances.
  - name: SSH
    description: Direct SSH access to rented instances for development and orchestration.
- type: LlmsText
  url: https://docs.vast.ai/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
  url: https://apievangelist.com

Vast.ai API — frequently asked questions

Does Vast.ai have an API?

Yes. APIs.io lists 11 APIs from Vast.ai, including Vast.ai REST API, Vast.ai Accounts API and Vast.ai Billing API, and 8 more.

Is there an OpenAPI specification for the Vast.ai API?

Yes. APIs.io indexes 10 OpenAPI specifications for Vast.ai, each linked for download from this page.

How do I authenticate with the Vast.ai API?

Vast.ai uses bearer-token authentication (apiKey/http · 3 schemes). The details are profiled on APIs.io as Vast Ai Authentication.

How much does the Vast.ai API cost?

Vast.ai publishes its prices; its On-Demand plan is Per-second billing as of 2026-10-07. APIs.io lists 3 pricing plans for Vast.ai, with each plan's price, limits and inclusions under Pricing on this page.

Does Vast.ai have an MCP server?

Yes. APIs.io lists 1 MCP server for Vast.ai: Remote MCP server at docs.vast.ai over HTTP; 3 tools listed.

Is the Vast.ai API ready for AI agents?

Vast.ai has a Kin Score of 52.2 out of 100 (developing) and an Agent Readiness score of 41.4 (agent-ready), scored by API Evangelist on 2026-11-06.

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