Inflection AI

Inflection AI is a foundation-model company behind the Pi personal AI assistant and the Inflection 3.0 family of empathetic large language models (Pi, Productivity). The Inflection Developer API serves these proprietary models for enterprise integration with cloud and on-premise deployment options.

Inflection AI publishes 5 APIs on the APIs.io network, including Chat API, Discovery API, Embeddings API, and 2 more. Tagged areas include Artificial Intelligence, LLM, Personal AI, PI, and Foundation Models.

Inflection AI’s developer surface includes authentication, documentation, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

28.2/100 thin ▬ flat Agent 31/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

Artificial Intelligence LLM Personal AI PI Foundation ModelsEmpathetic AI

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 28.2/100 · thin

Contract Quality 11.3 / 23

Developer Ergonomics 4.5 / 18

Access Clarity 2.8 / 18

Operational Transparency 1.2 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 31/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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

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.

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 github.com/api-evangelist/inflection: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 5

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

Inflection AI Chat API

The Chat API from Inflection AI — 2 operation(s) for chat.

Inflection AI Discovery API

The Discovery API from Inflection AI — 1 operation(s) for discovery.

Inflection AI Embeddings API

The Embeddings API from Inflection AI — 1 operation(s) for embeddings.

Inflection AI External API

The External API from Inflection AI — 3 operation(s) for external.

Inflection AI Status API

The Status API from Inflection AI — 1 operation(s) for status.

Open Collections 7

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

API Collection

OPEN COLLECTION

Inflection Inference Chat API

OPEN COLLECTION

Inflection Inference Chat Discovery API

OPEN COLLECTION

Inflection Inference Chat Embeddings API

OPEN COLLECTION

Inflection Inference Chat External API

OPEN COLLECTION

Inflection Inference Chat Status API

OPEN COLLECTION

Inflection Inference API

OPEN COLLECTION

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Inflection Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Inflection Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

Inflection Finops

FINOPS

Security Posture 2

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

Inflection Authentication

oauth2 · 1 scheme

SECURITY

Inflection Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Inflection Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Inflection Agentic Access

8 operations · 6 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

OAuthScopes

OAuthScopes

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: inflection
url: https://raw.githubusercontent.com/api-evangelist/inflection/refs/heads/main/apis.yml
name: Inflection AI
kind: company
description: Inflection AI is a foundation-model company behind the Pi personal AI assistant and the Inflection 3.0 family
  of empathetic large language models (Pi, Productivity). The Inflection Developer API serves these proprietary models for
  enterprise integration with cloud and on-premise deployment options.
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/inflection.png
tags:
- Artificial Intelligence
- LLM
- Personal AI
- PI
- Foundation Models
- Empathetic AI
tags_raw:
- AI
- LLM
- Personal AI
- Pi
- Foundation Models
- Empathetic AI
created: '2026-05-08'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: inflection:inflection-chat-api
  name: Inflection AI Chat API
  description: The Chat API from Inflection AI — 2 operation(s) for chat.
  humanURL: https://developers.inflection.ai/docs
  baseURL: https://layercake.pubwestus3.inf7ks8.com
  tags:
  - Chat
  properties:
  - type: OpenAPI
    url: openapi/inflection-chat-api-openapi.yml
  - type: Documentation
    url: https://developers.inflection.ai/docs
  - type: APIReference
    url: https://developers.inflection.ai/docs/api-reference
  - type: Documentation
    url: https://developers.inflection.ai/playground
  - type: Documentation
    url: https://developers.inflection.ai/usage
  - type: Website
    url: https://pi.ai/
  - type: Documentation
    url: https://inflection.ai/
- aid: inflection:inflection-discovery-api
  name: Inflection AI Discovery API
  description: The Discovery API from Inflection AI — 1 operation(s) for discovery.
  humanURL: https://developers.inflection.ai/docs
  baseURL: https://layercake.pubwestus3.inf7ks8.com
  tags:
  - Discovery
  properties:
  - type: OpenAPI
    url: openapi/inflection-discovery-api-openapi.yml
  - type: Documentation
    url: https://developers.inflection.ai/docs
  - type: APIReference
    url: https://developers.inflection.ai/docs/api-reference
  - type: Documentation
    url: https://developers.inflection.ai/playground
  - type: Documentation
    url: https://developers.inflection.ai/usage
  - type: Website
    url: https://pi.ai/
  - type: Documentation
    url: https://inflection.ai/
- aid: inflection:inflection-embeddings-api
  name: Inflection AI Embeddings API
  description: The Embeddings API from Inflection AI — 1 operation(s) for embeddings.
  humanURL: https://developers.inflection.ai/docs
  baseURL: https://layercake.pubwestus3.inf7ks8.com
  tags:
  - Embeddings
  properties:
  - type: OpenAPI
    url: openapi/inflection-embeddings-api-openapi.yml
  - type: Documentation
    url: https://developers.inflection.ai/docs
  - type: APIReference
    url: https://developers.inflection.ai/docs/api-reference
  - type: Documentation
    url: https://developers.inflection.ai/playground
  - type: Documentation
    url: https://developers.inflection.ai/usage
  - type: Website
    url: https://pi.ai/
  - type: Documentation
    url: https://inflection.ai/
- aid: inflection:inflection-external-api
  name: Inflection AI External API
  description: The External API from Inflection AI — 3 operation(s) for external.
  humanURL: https://developers.inflection.ai/docs
  baseURL: https://layercake.pubwestus3.inf7ks8.com
  tags:
  - External
  properties:
  - type: OpenAPI
    url: openapi/inflection-external-api-openapi.yml
  - type: Documentation
    url: https://developers.inflection.ai/docs
  - type: APIReference
    url: https://developers.inflection.ai/docs/api-reference
  - type: Documentation
    url: https://developers.inflection.ai/playground
  - type: Documentation
    url: https://developers.inflection.ai/usage
  - type: Website
    url: https://pi.ai/
  - type: Documentation
    url: https://inflection.ai/
- aid: inflection:inflection-status-api
  name: Inflection AI Status API
  description: The Status API from Inflection AI — 1 operation(s) for status.
  humanURL: https://developers.inflection.ai/docs
  baseURL: https://layercake.pubwestus3.inf7ks8.com
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/inflection-status-api-openapi.yml
  - type: Documentation
    url: https://developers.inflection.ai/docs
  - type: APIReference
    url: https://developers.inflection.ai/docs/api-reference
  - type: Documentation
    url: https://developers.inflection.ai/playground
  - type: Documentation
    url: https://developers.inflection.ai/usage
  - type: Website
    url: https://pi.ai/
  - type: Documentation
    url: https://inflection.ai/
common:
- type: AgenticAccess
  url: agentic-access/inflection-agentic-access.yml
- type: DomainSecurity
  url: security/inflection-domain-security.yml
- type: Authentication
  url: authentication/inflection-authentication.yml
- type: OAuthScopes
  url: scopes/inflection-scopes.yml
- type: GitHubOrganization
  url: https://github.com/InflectionAI
- type: LinkedIn
  url: https://www.linkedin.com/company/inflectionai
- type: Website
  url: https://inflection.ai/
- type: Documentation
  url: https://developers.inflection.ai/
- type: Plans
  url: plans/inflection-plans-pricing.yml
- type: RateLimits
  url: rate-limits/inflection-rate-limits.yml
- type: FinOps
  url: finops/inflection-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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