Supplier

Supplier.io is a supplier intelligence and supplier diversity platform for enterprise procurement teams. It pairs a database of 20M+ suppliers enriched from 450+ sources with spend analytics, diverse- and small-business spend reporting, Tier 2 reporting, supplier discovery and sourcing (Supplier Explorer), economic impact analysis, and Scope 3 carbon/ESG analytics. Backed by Norwest Venture Partners, it serves Fortune 100 procurement organizations. Its only public machine-accessible surface is a published Model Context Protocol (MCP) server (the Royal MCP WordPress plugin) at supplier.io; there is no documented public developer REST API.

Supplier is profiled on the APIs.io network. Tagged areas include Company, Procurement, Supply Chain, Supplier Diversity, and Spend Analytics.

Supplier’s developer surface includes engineering blog, pricing, support, authentication, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub

20.9/100 emerging ▬ flat Agent 25/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5

AccessSelf serve

0 APIs 1 MCP Servers

CompanyProcurementSupply ChainSupplier DiversitySpend AnalyticsSourcingESGSustainabilityMCP

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 20.9/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 5.2 / 20

Commercial Clarity 8.9 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

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 4 / 4

Consent & Bot Identity 0 / 3

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/supplier: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

MCP Servers 1

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

Scopes 1

OAuth scopes governing access to this provider's APIs.

Supplier Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

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

Conformance

Conformance

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

About

About

Blog

Blog

Source (apis.yml)

aid: supplier
name: Supplier
description: Supplier.io is a supplier intelligence and supplier diversity platform for enterprise procurement teams. It pairs
  a database of 20M+ suppliers enriched from 450+ sources with spend analytics, diverse- and small-business spend reporting,
  Tier 2 reporting, supplier discovery and sourcing (Supplier Explorer), economic impact analysis, and Scope 3 carbon/ESG
  analytics. Backed by Norwest Venture Partners, it serves Fortune 100 procurement organizations. Its only public machine-accessible
  surface is a published Model Context Protocol (MCP) server (the Royal MCP WordPress plugin) at supplier.io; there is no
  documented public developer REST API.
url: https://raw.githubusercontent.com/api-evangelist/supplier/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- norwest-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
image: https://supplier.io/wp-content/uploads/2025/07/SupplierIO-OG.jpg
tags:
- Company
- Procurement
- Supply Chain
- Supplier Diversity
- Spend Analytics
- Sourcing
- ESG
- Sustainability
- MCP
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://supplier.io
- type: About
  url: https://supplier.io/about
- type: Blog
  url: https://supplier.io/blog-index
- type: Pricing
  url: https://supplier.io/pricing
- type: Support
  url: https://supplierio.zendesk.com/
- type: Login
  url: https://explorer.supplier.io/Login/sign_in
- type: TermsOfService
  url: https://supplier.io/terms-of-use
- type: PrivacyPolicy
  url: https://supplier.io/privacy-policy
- type: MCPServer
  url: mcp/supplier-mcp.yml
- type: WellKnown
  url: well-known/supplier-well-known.yml
- type: LLMsTxt
  url: llms/supplier-llms.txt
- type: Authentication
  url: authentication/supplier-authentication.yml
- type: OAuthScopes
  url: scopes/supplier-scopes.yml
- type: Conformance
  url: conformance/supplier-conformance.yml
- type: DomainSecurity
  url: security/supplier-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 9
  pass: local-v1