Prox

Prox is the AI product specialist for manufacturers of complex physical products. It grounds answers in a company's own manuals and catalogs, cites them to the page, and deploys everywhere customers, dealers, and field technicians already work, including a hosted Model Context Protocol (MCP) connector for ChatGPT, Claude, Copilot, and Gemini. Prox indexes internal technical knowledge and generates visual answers such as troubleshooters, product selectors, sizing calculators, and step-by-step guides. Backed by Y Combinator (F25), Bloomberg Beta, and investors from OpenAI and Microsoft, and based in San Francisco.

Prox is listed with 1 API on the APIs.io network. Tagged areas include Company, Artificial Intelligence, MCP, Manufacturing, and Product Support.

Prox’s developer surface includes documentation, authentication, pricing, signup flow, support, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

26.6/100 thin ▬ flat Agent 30/100 agent ready Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessEnterprise

1 API 1 MCP Servers

Company Artificial Intelligence MCP ManufacturingProduct SupportKnowledge Base Documentation Agents

Kin Score

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

Composite quality — 26.6/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 6.1 / 17

Access Clarity 8.1 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 6.4 / 9

Regulatory Posture 4.8 / 15

Agent readiness — 30/100 · agent ready

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

8 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Operational Transparency scores 0.0 — up to +13.0 composite points
Developer Ergonomics scores 35.7 — up to +12.9 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/prox/apis.yml: open an issue on github.com/api-evangelist/prox 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 →

Standards implemented 3

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)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 1

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

Prox MCP Connector

Hosted MCP server that lets AI assistants query a manufacturer's Prox workspace (products, knowledge trees, wiki nodes) grounded in their manuals and make attributed, version-co...

MCP Servers 1

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

Prox MCP Server

Prox's hosted Model Context Protocol connector. Lets ChatGPT, Claude, Copilot, and Gemini query a manufacturer's Prox workspace — products, knowledge trees, and wiki nodes groun...

MCP SERVER

Prox API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

Prox Plans Pricing

0 plans

PLANS

Security Posture 3

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

Prox Authentication

oauth2/openIdConnect · 2 schemes

SECURITY

Prox Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Prox Trust Center

trust center published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Prox Scopes

4 scopes · authorizationCode/deviceCode

4 scopes

SCOPES

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

Access & Security 4

Authentication, authorization, and security posture

Authentication

OAuthScopes

DomainSecurity

TrustCenter

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

LinkedIn

Source (apis.yml)

aid: prox
name: Prox
description: Prox is the AI product specialist for manufacturers of complex physical products. It grounds answers in a company's
  own manuals and catalogs, cites them to the page, and deploys everywhere customers, dealers, and field technicians already
  work, including a hosted Model Context Protocol (MCP) connector for ChatGPT, Claude, Copilot, and Gemini. Prox indexes internal
  technical knowledge and generates visual answers such as troubleshooters, product selectors, sizing calculators, and step-by-step
  guides. Backed by Y Combinator (F25), Bloomberg Beta, and investors from OpenAI and Microsoft, and based in San Francisco.
url: https://raw.githubusercontent.com/api-evangelist/prox/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bloomberg-beta
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: medium
  source:
  - authentication
  - scopes
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
image: https://useprox.com/favicon.ico
tags:
- Company
- Artificial Intelligence
- MCP
- Manufacturing
- Product Support
- Knowledge Base
- Documentation
- Agents
tags_raw:
- Company
- Artificial Intelligence
- MCP
- Model Context Protocol
- Manufacturing
- Product Support
- Knowledge Base
- Documentation
- Agents
apis:
- name: Prox MCP Connector
  description: Hosted MCP server that lets AI assistants query a manufacturer's Prox workspace (products, knowledge trees,
    wiki nodes) grounded in their manuals and make attributed, version-controlled edits. OAuth 2.1 protected; no API keys.
  humanURL: https://useprox.com/docs/mcp
  baseURL: https://mcp.useprox.com
  tags:
  - MCP
  - Agents
  tags_raw:
  - MCP
  - Model Context Protocol
  - Agents
  properties:
  - type: MCPServer
    url: mcp/prox-mcp.yml
  - type: Documentation
    url: https://useprox.com/docs/mcp
  - type: Authentication
    url: authentication/prox-authentication.yml
  - type: OAuthScopes
    url: scopes/prox-scopes.yml
  - type: WellKnown
    url: well-known/prox-well-known.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/prox-plans-pricing.yml
- type: Website
  url: https://useprox.com/
- type: DeveloperPortal
  url: https://useprox.com/docs/mcp
- type: Documentation
  url: https://useprox.com/docs/mcp
- type: MCPServer
  url: mcp/prox-mcp.yml
- type: Authentication
  url: authentication/prox-authentication.yml
- type: OAuthScopes
  url: scopes/prox-scopes.yml
- type: WellKnown
  url: well-known/prox-well-known.yml
- type: DomainSecurity
  url: security/prox-domain-security.yml
- type: TrustCenter
  url: security/prox-trust-center.yml
- type: Conventions
  url: conventions/prox-conventions.yml
- type: LLMsTxt
  url: llms/prox-llms.txt
- type: Pricing
  url: https://useprox.com/#pricing
- type: SignUp
  url: https://signin.useprox.com/
- type: TermsOfService
  url: https://useprox.com/terms
- type: PrivacyPolicy
  url: https://useprox.com/privacy
- type: Support
  url: mailto:info@useprox.com
- type: LinkedIn
  url: https://www.linkedin.com/company/prox-inc/
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 12
  pass: local-v1

Prox API — frequently asked questions

Does Prox have an API?

Yes. APIs.io lists 1 API from Prox, including Prox MCP Connector.

How do I authenticate with the Prox API?

Prox documents its authentication (oauth2/openIdConnect · 2 schemes). The details are profiled on APIs.io as Prox Authentication.

Does Prox have an MCP server?

Yes. APIs.io lists 1 MCP server for Prox: Prox's hosted Model Context Protocol connector. Lets ChatGPT, Claude, Copilot, and Gemini query a manufacturer's Prox workspace — products, knowledge trees, and wiki nodes grounded in the company's ma

Is the Prox API ready for AI agents?

Prox has a Kin Score of 26.6 out of 100 (thin) and an Agent Readiness score of 30.3 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

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MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

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