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Anthropic Models?beta=true API

The Models?beta=true API from Anthropic — 1 operation(s) for models?beta=true.

Anthropic Models?beta=true API is one of 43 APIs that Anthropic publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Models?beta=true. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 1 operation across 1 path, and defines 19 schemas. It is described by OpenAPI 3.2.0.

Requests are made against a single base URL, https://api.anthropic.com.

1 operations 1 paths 19 schemas 1 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
Base URL
https://api.anthropic.com/v1
Resource Areas
1

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 GET. Each is listed below with its method, path, parameters, and response codes.

Models?beta=true 1
GET
/v1/models?beta=true
List Models
beta_models_list 6 params → 2004XX

Schemas 19

The contract defines 19 schemas that model the data the API accepts and returns. The most detailed are BetaModelCapabilities (9 properties), BetaModelInfo (8 properties), BetaEffortCapability (6 properties), BetaContextManagementCapability (4 properties). Each schema is shown below with its type and property counts.

BetaListResponse_ModelInfo_
object
4 properties 4 required
BetaGatewayTimeoutError
object
2 properties 2 required
BetaOverloadedError
object
2 properties 2 required
BetaBillingError
object
2 properties 2 required
BetaCapabilitySupport
object
Indicates whether a capability is supported.
1 property 1 required
BetaAuthenticationError
object
2 properties 2 required
BetaNotFoundError
object
2 properties 2 required
BetaEffortCapability
object
Effort (reasoningeffort) capability details.
6 properties 6 required
BetaInvalidRequestError
object
2 properties 2 required
BetaPermissionError
object
2 properties 2 required
BetaModelInfo
object
8 properties 8 required
BetaContextManagementCapability
object
Context management capability details.
4 properties 4 required
BetaAPIError
object
2 properties 2 required
BetaErrorResponse
object
3 properties 3 required
BetaThinkingTypes
object
Supported thinking type configurations.
2 properties 2 required
AnthropicBeta
BetaRateLimitError
object
2 properties 2 required
BetaThinkingCapability
object
Thinking capability details.
2 properties 2 required
BetaModelCapabilities
object
Model capability information.
9 properties 9 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

anthropic-models-beta-true-api-openapi.yml Raw ↑

Other APIs Anthropic publishes across the network.

Anthropic Messages API
Anthropic Models API
Anthropic Files API
Anthropic Skills API
Anthropic Agents API
Anthropic Api Keys API
Anthropic Cost API
Anthropic Environments API
Anthropic Events API
Anthropic Organization API
Anthropic Organization Invites API
Anthropic Organization Members API
Where this information came from

This is an independent, third-party profile of Anthropic Models?beta=true API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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