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 5 API contracts indexed on the APIs.io network, including Catalog API, Pricing API, Scope API, and 2 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 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

38.6/100 thin ▬ flat Agent 42/100 agent ready Front door AI 4/6 moderate Heartbeat 63/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 2 MCP Servers

Pricing Procurement Software-as-a-ServiceSoftware Spend ManagementNegotiation

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Procurement Management

BC-500

Pricing

POST /v1/pricing

Kin Score

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

Composite quality — 38.6/100 · thin

Contract Quality 12.0 / 19

Developer Ergonomics 4.3 / 15

Access Clarity 2.4 / 15

Operational Transparency 2.6 / 10

Contract Governance 2.5 / 9

Discoverability 5.1 / 8

Regulatory Posture 3.2 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 42/100 · agent ready

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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 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 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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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):

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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 15.8 — up to +16.8 composite points
Developer Ergonomics scores 28.6 — up to +14.3 composite points
Operational Transparency scores 26.3 — up to +9.6 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/vendr/apis.yml: open an issue on github.com/api-evangelist/vendr 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Procurement and B2B Buying (source-to-pay suites, spend management)	builds-on	34.5 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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)

OpenAPI

measured — observed by APIs.io (published)

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 5

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

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 2

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

MCP Server

MCP SERVER

Vendr MCP Server

Remote MCP server at mcp.vendr.com over HTTP.

MCP SERVER

Vendr API pricing

Not yet checked against Vendr's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Vendr's documentation. All 5 limits →

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

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Vendr

SLA

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 — jsonschema 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 · 3 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 3

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

PricingPage

PricingPage

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

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
  license_evidence:
    not_product:
    - vendrinc/vendr-mcp
  open_source: unknown
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/vendr.png
x-docs-platform: zudoku
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
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: CapabilityMap
  url: capabilities/vendr-capability-edges.yml
  name: Vendr Business Capability Map
- type: Plans
  url: plans/vendr-plans-pricing.yml
- type: FinOps
  url: finops/vendr-finops.yml
- 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

Vendr API — frequently asked questions

Does Vendr have an API?

Yes. APIs.io lists 5 APIs from Vendr, including Vendr MCP Server, Vendr Catalog API and Vendr Pricing API, and 2 more.

Is there an OpenAPI specification for the Vendr API?

Yes. APIs.io indexes 4 OpenAPI specifications for Vendr, each linked for download from this page.

How do I authenticate with the Vendr API?

Vendr documents its authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Vendr Authentication.

How much does the Vendr API cost?

APIs.io lists 3 pricing plans for Vendr, with each plan's price, limits and inclusions under Pricing on this page.

Does Vendr have an MCP server?

Yes. APIs.io lists 2 MCP servers for Vendr: Remote MCP server at mcp.vendr.com over HTTP.

Is the Vendr API ready for AI agents?

Vendr has a Kin Score of 38.6 out of 100 (thin) and an Agent Readiness score of 41.8 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

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

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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