Baseten website screenshot

Baseten

Baseten is a production inference platform for deploying and serving custom and pre-trained ML models. Offers a Model APIs catalog with OpenAI-compatible endpoints (DeepSeek, Qwen, GLM, Nemotron), dedicated deployments via Truss, autoscaling GPU compute, async/queue inference, training, chains (multi-model workflows), and management APIs.

Baseten publishes 3 API contracts indexed on the APIs.io network, including Chat Completions API, Messages API, and 1 more. Tagged areas include Artificial Intelligence, Machine Learning, Inference, Deployment, and MLOps.

The Baseten catalog on APIs.io includes 1 Spectral governance ruleset.

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

32.6/100 thin ▬ flat Agent 31/100 agent ready Front door AI 6/6 dominant Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →
AccessEnterprise
3 published contracts 1 MCP Servers
Artificial IntelligenceMachine LearningInferenceDeploymentMLOpsOpenAI-CompatibleAnthropic CompatibleTruss

What this lets a business do 2

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

AI Model Services
AE-110
MessagesNon-RegionalRegional
POST /v1/messages
Information & Data Management
BC-610
Chat Completions
POST /v1/chat/completions

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0
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)
  • Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
  • 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
  • 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)
7 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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/baseten/apis.yml: open an issue on github.com/api-evangelist/baseten 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.

MarketPositionDepthRegistered MCP serverDeclares compatibility
Retrieval, Vector and RAG mixed 51.8 - 1
Speech and Voice AI mixed 51.8 - 1
Hugging Face Hub Organisations mixed 51.8 - 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 4

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.

declared — publishes a spec that declares them
2 core of 244 operations graded · api-commons/models
declared — publishes a spec that declares them
2 core of 338 operations graded · api-commons/models
measured — observed by APIs.io (verified)
measured — observed by APIs.io (published)

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

Baseten Management & Async API

Deployment management, async/queued inference, chain calls (multi-model workflows), training, dedicated-deployment lifecycle, async result polling, and webhook delivery.

Baseten Chat Completions API

The Chat Completions API from Baseten — 1 operation(s) for chat completions.

Baseten Messages API

The Messages API from Baseten — 1 operation(s) for messages.

Open Collections 4

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

Baseten LLM Inference API

OPEN COLLECTION

MCP Servers 1

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

Baseten MCP Server

Remote MCP server at docs.baseten.co over HTTP.

MCP SERVER

Baseten API pricing

Not yet checked against Baseten's own pricing page. Compiled by API Evangelist on 2026-05-08 from www.baseten.co/; confirm before you rely on a figure.

PlanPrice
To Be Reconciled enterprise —

Plan details, limits and sources →

Rate limits

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

Pricing Plans 1

Published pricing tiers and plan structures.

Baseten Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Baseten Rate Limits

1 limits

RATE LIMITS

Service Levels 1

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

Baseten

SLA

FinOps 1

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

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Baseten — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 43

Standalone JSON Schema definitions for this provider's data models.

ChatCompletionContentPartImageParam

2 properties

JSON SCHEMA

ChatCompletionContentPartTextParam

2 properties

JSON SCHEMA

ChatCompletionLogProb

3 properties

JSON SCHEMA

ChatCompletionLogProbs

1 properties

JSON SCHEMA

ChatCompletionLogProbsContent

4 properties

JSON SCHEMA

ChatCompletionMessage

5 properties

JSON SCHEMA

ChatCompletionMessageToolCallParam

4 properties

JSON SCHEMA

ChatCompletionNamedFunction

1 properties

JSON SCHEMA

ChatCompletionNamedToolChoiceParam

2 properties

JSON SCHEMA

ChatCompletionRequest

43 properties

JSON SCHEMA

ChatCompletionStreamResponse

6 properties

JSON SCHEMA

ChatCompletionResponseStreamChoice

5 properties

JSON SCHEMA

ChatCompletionToolsParam

2 properties

JSON SCHEMA

CompletionTokensDetails

4 properties

JSON SCHEMA

DeltaMessage

3 properties

JSON SCHEMA

DisaggregatedParams

7 properties

JSON SCHEMA

File

2 properties

JSON SCHEMA

FileFile

3 properties

JSON SCHEMA

Function

2 properties

JSON SCHEMA

FunctionCall

2 properties

JSON SCHEMA

FunctionDefinition

4 properties

JSON SCHEMA

ImageURL

2 properties

JSON SCHEMA

InputAudio

2 properties

JSON SCHEMA

InputMessage

2 properties

JSON SCHEMA

JsonSchema

4 properties

JSON SCHEMA

MessagesRequest

12 properties

JSON SCHEMA

MessagesResponse

8 properties

JSON SCHEMA

PromptTokensDetails

2 properties

JSON SCHEMA

ResponseFormatGrammar

2 properties

JSON SCHEMA

ResponseFormatJson

2 properties

JSON SCHEMA

ResponseFormatJsonObject

1 properties

JSON SCHEMA

ResponseFormatStructuralTag

2 properties

JSON SCHEMA

ResponseFormatText

1 properties

JSON SCHEMA

StreamOptions

2 properties

JSON SCHEMA

TextBlock

2 properties

JSON SCHEMA

ToolCall

4 properties

JSON SCHEMA

ToolChoice

0 properties

JSON SCHEMA

ToolDefinition

3 properties

JSON SCHEMA

ToolResultBlock

4 properties

JSON SCHEMA

ToolUseBlock

4 properties

JSON SCHEMA

Usage

2 properties

JSON SCHEMA

UsageInfo

5 properties

JSON SCHEMA

Scroll for all 43

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Baseten Structure

0 properties

JSON STRUCTURE

Security Posture 3

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

Baseten Authentication

apiKey · 1 scheme

SECURITY

Baseten Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Baseten Trust Center

SOC 2, PCI DSS, HIPAA, GDPR, CSA STAR

SECURITY

Agentic Access 1

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

Baseten Agentic Access

2 operations · 2 acting

2 operations · 2 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Build 1

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 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: baseten
url: https://raw.githubusercontent.com/api-evangelist/baseten/refs/heads/main/apis.yml
name: Baseten
kind: company
description: Baseten is a production inference platform for deploying and serving custom and pre-trained ML models. Offers
  a Model APIs catalog with OpenAI-compatible endpoints (DeepSeek, Qwen, GLM, Nemotron), dedicated deployments via Truss,
  autoscaling GPU compute, async/queue inference, training, chains (multi-model workflows), and management APIs.
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: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/baseten.png
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-20
x-docs-hosting: vercel
tags:
- Artificial Intelligence
- Machine Learning
- Inference
- Deployment
- MLOps
- OpenAI-Compatible
- Anthropic Compatible
- Truss
tags_raw:
- AI
- ML
- Inference
- Deployment
- MLOps
- OpenAI Compatible
- Anthropic Compatible
- Truss
- Machine-Learning
created: '2026-05-08'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: baseten:management
  name: Baseten Management & Async API
  description: Deployment management, async/queued inference, chain calls (multi-model workflows), training, dedicated-deployment
    lifecycle, async result polling, and webhook delivery.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.baseten.co/api-reference
  baseURL: https://api.baseten.co
  tags:
  - Management
  - Async
  - Webhook
  - Deployment
  - Training
  tags_raw:
  - Management
  - Async
  - Webhooks
  - Deployment
  - Training
  properties:
  - type: Documentation
    url: https://docs.baseten.co/api-reference
  - type: TrussCLI
    url: https://docs.baseten.co/
- aid: baseten:baseten-chat-completions-api
  name: Baseten Chat Completions API
  description: The Chat Completions API from Baseten — 1 operation(s) for chat completions.
  humanURL: https://docs.baseten.co/reference/inference-api/llm-openapi-spec
  baseURL: https://inference.baseten.co/v1
  tags:
  - Chat Completions
  properties:
  - type: OpenAPI
    url: openapi/baseten-chat-completions-api-openapi.yml
  - type: Documentation
    url: https://docs.baseten.co/
  - type: Pricing
    url: https://www.baseten.co/pricing/
- aid: baseten:baseten-messages-api
  name: Baseten Messages API
  description: The Messages API from Baseten — 1 operation(s) for messages.
  humanURL: https://docs.baseten.co/reference/inference-api/llm-openapi-spec
  baseURL: https://inference.baseten.co/v1
  tags:
  - Message
  tags_raw:
  - Messages
  properties:
  - type: OpenAPI
    url: openapi/baseten-messages-api-openapi.yml
  - type: Documentation
    url: https://docs.baseten.co/
  - type: Pricing
    url: https://www.baseten.co/pricing/
common:
- type: CapabilityMap
  url: capabilities/baseten-capability-edges.yml
  name: Baseten Business Capability Map
- type: AgenticAccess
  url: agentic-access/baseten-agentic-access.yml
- type: TrustCenter
  url: security/baseten-trust-center.yml
- type: DomainSecurity
  url: security/baseten-domain-security.yml
- type: Authentication
  url: authentication/baseten-authentication.yml
- type: GitHubOrganization
  url: https://github.com/basetenlabs
- type: LinkedIn
  url: https://www.linkedin.com/company/baseten
- type: Website
  url: https://www.baseten.co/
- type: Documentation
  url: https://docs.baseten.co/
- type: Pricing
  url: https://www.baseten.co/pricing/
- type: Plans
  url: plans/baseten-plans-pricing.yml
- type: RateLimits
  url: rate-limits/baseten-rate-limits.yml
- type: FinOps
  url: finops/baseten-finops.yml
- type: LlmsText
  url: https://docs.baseten.co/llms.txt
- type: Blog
  url: https://www.baseten.co/blog/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Baseten API — frequently asked questions

Does Baseten have an API?

Yes. APIs.io lists 3 APIs from Baseten, including Baseten Management & Async API, Baseten Chat Completions API and Baseten Messages API.

Is there an OpenAPI specification for the Baseten API?

Yes. APIs.io indexes 2 OpenAPI specifications for Baseten, each linked for download from this page.

How do I authenticate with the Baseten API?

Baseten uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Baseten Authentication.

How much does the Baseten API cost?

APIs.io lists 1 pricing plan for Baseten, with each plan's price, limits and inclusions under Pricing on this page.

Does Baseten have an MCP server?

Yes. APIs.io lists 1 MCP server for Baseten: Remote MCP server at docs.baseten.co over HTTP.

Is the Baseten API ready for AI agents?

Baseten has a Kin Score of 32.6 out of 100 (thin) and an Agent Readiness score of 31.2 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

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  • get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
  • get_provider_ratingPRO — composite, band, trend and facet scores.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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  • find_cohortsEvery scored population of providers in the catalog.
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