Purchaser

Purchaser is an AI-powered RFQ (Request for Quotation) intelligence platform for capital-intensive industries such as EPC, LNG, transmission & distribution, and specialty-equipment manufacturing. It ingests unstructured vendor quotes from PDFs, emails, and spreadsheets and normalizes them into structured, defensible sourcing data so procurement teams can level bids apples-to-apples, surface deviations and gaps, and produce audit-ready award traceability. Purchaser exposes a REST API (OpenAPI 3.1) covering the full sourcing lifecycle — RFQs, vendors, conversations, quotes, files, and webhooks — with API-key auth, idempotency keys, versioned /api/v1/ endpoints, sliding-window rate limiting, and connectors for SAP S/4HANA, Oracle ERP Cloud, Microsoft Dynamics 365, Infor, and more. Based in Lexington, KY and backed by Homebrew.

Purchaser publishes 1 API on the APIs.io network. Tagged areas include Company, Ai, Procurement, Sourcing, and RFQ.

The Purchaser catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Purchaser’s developer surface includes documentation, API reference, engineering blog, support, signup flow, authentication, and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub
30.5/100 thin ▬ flat Agent 36/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
1 APIs 1 MCP Servers
CompanyAiProcurementSourcingRFQSupply ChainConstructionEnterprise

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 30.5/100 · thin
Contract Quality 5.7 / 25
Developer Ergonomics 10.0 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 1.0 / 13
Governance 0.0 / 12
Discoverability 8.0 / 10
Agent readiness — 36/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 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/purchaser: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Purchaser API

REST API (OpenAPI 3.1) covering the sourcing lifecycle — RFQs, vendors, conversations, quotes, files, and webhooks. API-key authentication with team and environment scoping; the...

MCP Servers 1

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

purchaser-mcp.yml

MCP SERVER

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Purchaser Webhooks

ASYNCAPI

Security Posture 3

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

Purchaser Authentication

2 schemes

SECURITY

Purchaser Domain Security

TLSv1.3 · DMARC

SECURITY

Purchaser Trust Center

SOC 2 Type II

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 SignUp
SignUp
 Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Idempotency
Idempotency
 Lifecycle
Lifecycle
 Webhooks
Webhooks
 Conformance
Conformance
 DataModel
DataModel

Access & Security 4

Authentication, authorization, and security posture

Authentication
Authentication
 Compliance
Compliance
 TrustCenter
TrustCenter
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support
Support

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: purchaser
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
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/purchaser.png
name: Purchaser
description: Purchaser is an AI-powered RFQ (Request for Quotation) intelligence platform for capital-intensive industries
  such as EPC, LNG, transmission & distribution, and specialty-equipment manufacturing. It ingests unstructured vendor quotes
  from PDFs, emails, and spreadsheets and normalizes them into structured, defensible sourcing data so procurement teams can
  level bids apples-to-apples, surface deviations and gaps, and produce audit-ready award traceability. Purchaser exposes
  a REST API (OpenAPI 3.1) covering the full sourcing lifecycle — RFQs, vendors, conversations, quotes, files, and webhooks
  — with API-key auth, idempotency keys, versioned /api/v1/ endpoints, sliding-window rate limiting, and connectors for SAP
  S/4HANA, Oracle ERP Cloud, Microsoft Dynamics 365, Infor, and more. Based in Lexington, KY and backed by Homebrew.
url: https://raw.githubusercontent.com/api-evangelist/purchaser/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- homebrew
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Ai
- Procurement
- Sourcing
- RFQ
- Supply Chain
- Construction
- Enterprise
apis:
- name: Purchaser API
  description: REST API (OpenAPI 3.1) covering the sourcing lifecycle — RFQs, vendors, conversations, quotes, files, and webhooks.
    API-key authentication with team and environment scoping; the full reference and interactive explorer are available to
    Purchaser customers. Base URL is customer-provisioned under /api/v1/.
  humanURL: https://purchaser.ai/api-and-integrations
  properties:
  - type: Documentation
    url: https://docs.purchaser.ai
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://purchaser.ai
- type: DeveloperPortal
  url: https://docs.purchaser.ai
- type: Documentation
  url: https://docs.purchaser.ai
- type: APIReference
  url: https://purchaser.ai/api-and-integrations
- type: Blog
  url: https://purchaser.ai/blog
- type: Support
  url: https://purchaser.ai/contact
- type: SignUp
  url: https://app.purchaser.ai/login
- type: Login
  url: https://app.purchaser.ai/login
- type: Conventions
  url: conventions/purchaser-conventions.yml
- type: Idempotency
  url: conventions/purchaser-conventions.yml
- type: Authentication
  url: authentication/purchaser-authentication.yml
- type: Lifecycle
  url: lifecycle/purchaser-lifecycle.yml
- type: Webhooks
  url: asyncapi/purchaser-webhooks.yml
- type: Conformance
  url: conformance/purchaser-conformance.yml
- type: Compliance
  url: security/purchaser-trust-center.yml
- type: TrustCenter
  url: security/purchaser-trust-center.yml
- type: DomainSecurity
  url: security/purchaser-domain-security.yml
- type: DataModel
  url: data-model/purchaser-data-model.yml
- type: MCPServer
  url: mcp/purchaser-mcp.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 9
  pass: local-v1