Vendr

Vendr is a SaaS procurement intelligence platform that helps businesses manage software spending through data-driven pricing insights and negotiation guidance. The Vendr API (OpenPrice API) provides access to real contract pricing data from 200,000+ verified software agreements across 20,000+ products, enabling developers to embed fair pricing estimates, negotiation insights, product catalog data, and purchase scope management into their applications.

Vendr publishes 4 APIs on the APIs.io network, including Catalog API, Pricing API, Scope API, and 1 more. Tagged areas include Pricing, Procurement, Software-as-a-Service, Software Spend Management, and Negotiation.

The Vendr catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Vendr’s developer surface includes authentication, documentation, support, engineering blog, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

41.1/100 developing ▬ flat Agent 23/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs 1 MCP Servers

Pricing Procurement Software-as-a-ServiceSoftware Spend ManagementNegotiation

Kin Score

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

Composite quality — 41.1/100 · developing

Contract Quality 15.8 / 23

Developer Ergonomics 5.1 / 18

Access Clarity 4.3 / 18

Operational Transparency 3.1 / 12

Contract Governance 3.1 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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 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/vendr: 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.

Vendr MCP Server

The Vendr Model Context Protocol (MCP) server exposes Vendr pricing intelligence to AI agents via the MCP standard. It provides tools for searching the product catalog, retrievi...

Vendr Catalog API

Search and retrieve software product catalog data

Vendr Pricing API

Fair price estimates and negotiation insights

Vendr Scope API

Define and submit purchase scope requirements

Vendr Webhooks API

Subscribe to and manage event notifications

Open Collections 6

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

API Collection

OPEN COLLECTION

Vendr OpenPrice Catalog API

OPEN COLLECTION

Vendr OpenPrice Catalog Pricing API

OPEN COLLECTION

Vendr OpenPrice Catalog Scope API

OPEN COLLECTION

Vendr OpenPrice Catalog Webhooks API

OPEN COLLECTION

Vendr OpenPrice API

OPEN COLLECTION

MCP Servers 1

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

MCP Server

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Vendr Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Vendr Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Vendr Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Vendr Context

32 classes · 1 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Vendr API Rules

5 rules · 3 warnings 2 info

SPECTRAL

Vendr API Rules

11 rules · 3 errors 7 warnings

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Vendr Catalog Product

7 properties

JSON SCHEMA

Vendr Pricing Response

7 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Vendr Pricing Response Structure

0 properties

JSON STRUCTURE

Examples 4

Example request and response payloads for these APIs.

Vendr Create Webhook Example

2 fields

EXAMPLE

Vendr Get Pricing Estimate Example

2 fields

EXAMPLE

Vendr Search Catalog Example

2 fields

EXAMPLE

Vendr Submit Scope Example

2 fields

EXAMPLE

Security Posture 3

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

Vendr Authentication

apiKey · 1 scheme

SECURITY

Vendr Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Vendr Trust Center

SOC 2, GDPR

SECURITY

Agentic Access 1

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

Vendr Agentic Access

6 operations · 4 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

MCPServer

MCPServer

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

DomainSecurity

Authentication

Authentication

Operate 4

Status, limits, changes, and where to get help

IssueTracker

Releases

Support

RateLimits

Commercial 1

Pricing, plans, and the legal terms of use

PricingPage

PricingPage

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: vendr
name: Vendr
description: Vendr is a SaaS procurement intelligence platform that helps businesses manage software spending through data-driven
  pricing insights and negotiation guidance. The Vendr API (OpenPrice API) provides access to real contract pricing data from
  200,000+ verified software agreements across 20,000+ products, enabling developers to embed fair pricing estimates, negotiation
  insights, product catalog data, and purchase scope management into their applications.
type: Index
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - repository-unlicensed
  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: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/vendr.png
tags:
- Pricing
- Procurement
- Software-as-a-Service
- Software Spend Management
- Negotiation
tags_raw:
- Pricing
- Procurement
- SaaS
- Software Spend Management
- Negotiation
url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/apis.yml
created: '2026-03-16'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: vendr:vendr-mcp
  name: Vendr MCP Server
  description: The Vendr Model Context Protocol (MCP) server exposes Vendr pricing intelligence to AI agents via the MCP standard.
    It provides tools for searching the product catalog, retrieving custom price estimates, and obtaining negotiation insights.
    Requires a Vendr API key.
  humanURL: https://github.com/vendrinc/vendr-mcp
  baseURL: https://api.vendr.com
  tags:
  - MCP
  - AI Agents
  - Pricing
  - Procurement
  properties:
  - type: Documentation
    url: https://github.com/vendrinc/vendr-mcp
  - type: GitHubRepository
    url: https://github.com/vendrinc/vendr-mcp
- aid: vendr:vendr-catalog-api
  name: Vendr Catalog API
  description: Search and retrieve software product catalog data
  humanURL: https://developers.vendr.com/docs/introduction
  baseURL: https://api.vendr.com
  tags:
  - Catalog
  properties:
  - type: OpenAPI
    url: openapi/vendr-catalog-api-openapi.yml
  - type: Documentation
    url: https://developers.vendr.com/docs/introduction
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/json-schema/vendr-pricing-response-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/json-schema/vendr-catalog-product-schema.json
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/rules/vendr-rules.yml
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/vocabulary/vendr-vocabulary.yml
- aid: vendr:vendr-pricing-api
  name: Vendr Pricing API
  description: Fair price estimates and negotiation insights
  humanURL: https://developers.vendr.com/docs/introduction
  baseURL: https://api.vendr.com
  tags:
  - Pricing
  properties:
  - type: OpenAPI
    url: openapi/vendr-pricing-api-openapi.yml
  - type: Documentation
    url: https://developers.vendr.com/docs/introduction
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/json-schema/vendr-pricing-response-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/json-schema/vendr-catalog-product-schema.json
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/rules/vendr-rules.yml
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/vocabulary/vendr-vocabulary.yml
- aid: vendr:vendr-scope-api
  name: Vendr Scope API
  description: Define and submit purchase scope requirements
  humanURL: https://developers.vendr.com/docs/introduction
  baseURL: https://api.vendr.com
  tags:
  - Scope
  properties:
  - type: OpenAPI
    url: openapi/vendr-scope-api-openapi.yml
  - type: Documentation
    url: https://developers.vendr.com/docs/introduction
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/json-schema/vendr-pricing-response-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/json-schema/vendr-catalog-product-schema.json
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/rules/vendr-rules.yml
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/vocabulary/vendr-vocabulary.yml
- aid: vendr:vendr-webhooks-api
  name: Vendr Webhooks API
  description: Subscribe to and manage event notifications
  humanURL: https://developers.vendr.com/docs/introduction
  baseURL: https://api.vendr.com
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/vendr-webhooks-api-openapi.yml
  - type: Documentation
    url: https://developers.vendr.com/docs/introduction
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/json-schema/vendr-pricing-response-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/json-schema/vendr-catalog-product-schema.json
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/rules/vendr-rules.yml
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/vendr/refs/heads/main/vocabulary/vendr-vocabulary.yml
common:
- type: IssueTracker
  url: https://github.com/vendrinc/vendr-mcp/issues
- type: Releases
  url: https://github.com/vendrinc/vendr-mcp/releases
- type: AgenticAccess
  url: agentic-access/vendr-agentic-access.yml
- type: TrustCenter
  url: security/vendr-trust-center.yml
- type: DomainSecurity
  url: security/vendr-domain-security.yml
- type: Authentication
  url: authentication/vendr-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/vendr-co
- type: Website
  url: https://www.vendr.com/
- type: Documentation
  url: https://developers.vendr.com/docs/introduction
- type: PricingPage
  url: https://www.vendr.com/pricing-api
- type: GitHubOrganization
  url: https://github.com/vendrinc
- type: Support
  url: mailto:developers@vendr.com
- type: RateLimits
  url: https://developers.vendr.com/docs/introduction
- type: Authentication
  url: https://developers.vendr.com/docs/introduction
- type: Integrations
  url: https://www.vendr.com/integrations
- name: MCP Server
  url: https://github.com/vendrinc/vendr-mcp
  type: MCPServer
- type: Blog
  url: https://vendr.com/blog
integrations:
- name: Google Workspace Identity Provider and SSO
- name: OneLogin Identity Provider and SSO
- name: Jumpcloud Identity Provider and SSO
- name: Jira Service Management Help Desk
- name: Jira Software Help Desk
- name: Microsoft OneDrive File Storage
- name: Box File Storage
- name: Dropbox File Storage
- name: Sage Intacct Accounting
- name: Quickbooks Accounting
- name: Netsuite Accounting
- name: Google Chrome Productivity
- name: SAML Identity Provider and SSO
- name: Webhooks Build Your Own
- name: Workday HR
- name: Gusto HR
- name: BambooHR HR
- name: Ironclad Contract Management
- name: Docusign Contract Management
- name: Okta Identity Provider and SSO
- name: Slack Productivity
- name: Google Drive File Storage
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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