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, Artificial Intelligence, 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

27.9/100 thin ▬ flat Agent 23/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Artificial Intelligence Procurement Sourcing RFQ Supply Chain Construction Enterprise

Kin Score

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

Composite quality — 27.9/100 · thin

Contract Quality 10.4 / 25

Developer Ergonomics 5.2 / 20

Access Clarity 3.2 / 20

Operational Transparency 1.0 / 13

Contract Governance 2.2 / 12

Discoverability 5.9 / 10

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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

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 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.

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/purchaser: 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 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...

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

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

Lifecycle

Webhooks

Conformance

DataModel

Access & Security 4

Authentication, authorization, and security posture

Authentication

Compliance

TrustCenter

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)

aid: purchaser
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  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: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Artificial Intelligence
- Procurement
- Sourcing
- RFQ
- Supply Chain
- Construction
- Enterprise
tags_raw:
- 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: X-MCPServerCandidate
  url: mcp/purchaser-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 9
  pass: local-v1

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