BestPrice Agent Commerce

BestPrice.gr is Greece's largest price-comparison marketplace, run by The Best Company S.A., covering roughly 25.7 million products from about 3,650 merchants and 42,000 manufacturers with hourly merchant-feed refreshes. Its developer surface is not a REST API but a public, keyless, read-only MCP server at https://mcp.bestprice.gr/mcp (server 1.8.1, MCP Registry id gr.bestprice/mcp), exposing four tools - get_shopping_decision (the BestPrice Shopping Brain: recommendations, need-based comparisons and read-only basket plans), search_products, compare_offers and get_price_history - whose JSON Schema 2020-12 input and output contracts are served live and anonymously. Alongside it BestPrice publishes a provider-authored Agent Skill, an APIs.json 0.23 index, an llms.txt, an RFC 9116 security.txt, an Agentic Resource Discovery manifest, an AI catalog, an MCP server card, a stdio bridge for hosts that cannot speak HTTP, and an experimental WebMCP manifest of 16 browser-tab tools.

BestPrice Agent Commerce is listed with 1 API on the APIs.io network. Tagged areas include Shopping, Price Comparison, E-Commerce, Retail, and MCP.

BestPrice Agent Commerce’s developer surface includes pricing, authentication, changelog, documentation, engineering blog, support, and 31 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

47.2/100 developing ▬ flat Agent 10/100 agent aware Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-01 · rubric v0.26.0 · Show this score on your site →

AccessOpen

1 API 1 MCP Servers 3 Agent Skills

Shopping Price Comparison E-Commerce Retail MCP WebMCP Agentic Commerce Greece Product RecommendationsShopping DecisionsDelivered Price

Kin Score

Kin Score How this is scored →
scored 2026-11-01 · rubric v0.26.0

Composite quality — 47.2/100 · developing

Contract Quality 2.6 / 21

Developer Ergonomics 11.2 / 17

Access Clarity 8.9 / 17

Operational Transparency 5.8 / 11

Contract Governance 1.9 / 10

Discoverability 7.8 / 9

Regulatory Posture 4.6 / 15

Agent readiness — 10/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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

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 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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
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

8 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 12.0 — up to +22.0 composite points
Contract Governance scores 18.2 — up to +9.8 composite points
Access Clarity scores 52.6 — up to +9.5 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/bestprice/apis.yml: open an issue on github.com/api-evangelist/bestprice 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
Browser Extension Stores (company-published Firefox add-ons; Chrome Web Store unreadable)	undeclared	-	1	-

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 2

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.

WebMCP

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

APIs 1

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

BestPrice Shopping MCP

Read-only shopping tools for product recommendations and shopping decisions, grouped-product search, current Greek merchant offers and delivered totals, and price history.

MCP Servers 1

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

BestPrice Shopping MCP (probed profile)

Read-only shopping decisions, product search, offers, and price history for Greece.

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

bestprice-best-total-price

AGENT SKILL

bestprice-budget-shortlist

AGENT SKILL

bestprice-price-timing

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Bestprice Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Bestprice Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

Bestprice Finops

FINOPS

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Bestprice Openapi Overlay

0 actions · update

UNRECORDED

JSON Schema 8

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

Bestprice Compare Offers Input

6 properties

JSON SCHEMA

Bestprice Compare Offers Output

0 properties

JSON SCHEMA

Bestprice Get Price History Input

2 properties

JSON SCHEMA

Bestprice Get Price History Output

0 properties

JSON SCHEMA

Bestprice Get Shopping Decision Input

4 properties

JSON SCHEMA

Bestprice Get Shopping Decision Output

0 properties

JSON SCHEMA

Bestprice Search Products Input

8 properties

JSON SCHEMA

Bestprice Search Products Output

0 properties

JSON SCHEMA

Scroll for all 8

Security Posture 3

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

Bestprice Authentication

1 scheme

SECURITY

Bestprice Domain Security

TLSv1.3 · DMARC

SECURITY

Bestprice Vulnerability Disclosure

Hackerone

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer

WebMCP

WellKnown

LLMsTxt

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conformance

Conventions

ErrorCatalog

Lifecycle

Components

DataModel

Build 6

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

IntegrationEdges

SDKs

Packages

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Access & Security 5

Authentication, authorization, and security posture

DomainSecurity

SecurityTxt

Authentication

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

RateLimits

RateLimits

Support

Support

Commercial 6

Pricing, plans, and the legal terms of use

FinOps

Pricing

License

Plans

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

APICatalog

APICatalog

Source (apis.yml)

aid: bestprice
name: BestPrice Agent Commerce
type: Index
kind: company
visibility: Public
description: 'BestPrice.gr is Greece''s largest price-comparison marketplace, run by The Best Company S.A., covering roughly
  25.7 million products from about 3,650 merchants and 42,000 manufacturers with hourly merchant-feed refreshes. Its developer
  surface is not a REST API but a public, keyless, read-only MCP server at https://mcp.bestprice.gr/mcp (server 1.8.1, MCP
  Registry id gr.bestprice/mcp), exposing four tools - get_shopping_decision (the BestPrice Shopping Brain: recommendations,
  need-based comparisons and read-only basket plans), search_products, compare_offers and get_price_history - whose JSON Schema
  2020-12 input and output contracts are served live and anonymously. Alongside it BestPrice publishes a provider-authored
  Agent Skill, an APIs.json 0.23 index, an llms.txt, an RFC 9116 security.txt, an Agentic Resource Discovery manifest, an
  AI catalog, an MCP server card, a stdio bridge for hosts that cannot speak HTTP, and an experimental WebMCP manifest of
  16 browser-tab tools.'
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: true
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - pricing
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  label: Open access
  confidence: medium
  source:
  - authentication
  - rate-limits
  - security
  generated: '2026-09-02'
  method: derived
image: https://www.bestprice.gr/images/logo.svg
tags:
- Shopping
- Price Comparison
- E-Commerce
- Retail
- MCP
- WebMCP
- Agentic Commerce
- Greece
- Product Recommendations
- Shopping Decisions
- Delivered Price
tags_raw:
- shopping
- price comparison
- ecommerce
- retail
- MCP
- Model Context Protocol
- WebMCP
- agent commerce
- Greece
- product recommendations
- shopping decisions
- delivered price
created: '2026-08-27'
modified: '2026-09-25'
url: https://www.bestprice.gr/apis.json
specificationVersion: '0.23'
maintainers:
- FN: BestPrice.gr Engineering
  organizationName: BestPrice.gr
  email: feedback@bestprice.gr
  url: https://www.bestprice.gr/contact
common:
- type: FinOps
  url: finops/bestprice-finops.yml
- type: ToolCrosswalk
  url: mcp/bestprice-tool-crosswalk.yml
- type: IntegrationEdges
  url: integrations/bestprice-integration-edges.yml
- type: Pricing
  url: https://www.bestprice.gr/en/mcp
- type: Hosts
  url: hosts/bestprice-hosts.yml
- type: SDKs
  url: packages/bestprice-packages.yml
- type: Website
  url: https://bestprice.gr
- type: License
  name: Apache-2.0
  url: https://github.com/TheBestCo/bestprice-mcp/blob/main/LICENSE
- type: DomainSecurity
  url: security/bestprice-domain-security.yml
- type: MCPServer
  name: BestPrice Shopping MCP (probed profile)
  url: mcp/bestprice-mcp.yml
- type: WebMCP
  name: BestPrice WebMCP browser-tab tool surface
  url: mcp/bestprice-webmcp.yml
- type: WellKnown
  name: Probed /.well-known/ index (6 served documents across 2 hosts)
  url: well-known/bestprice-well-known.yml
- type: SecurityTxt
  name: security.txt (verbatim, RFC 9116)
  url: well-known/bestprice-security.txt
- type: APICatalog
  name: Agentic Resource Discovery manifest (verbatim)
  url: well-known/bestprice-ard.json
- type: LLMsTxt
  name: llms.txt (verbatim)
  url: llms/bestprice-llms.txt
- type: Authentication
  name: Authentication profile
  url: authentication/bestprice-authentication.yml
- type: Conformance
  name: Standards conformance assertions with evidence
  url: conformance/bestprice-conformance.yml
- type: Conventions
  name: Cross-cutting runtime semantics and reversibility
  url: conventions/bestprice-conventions.yml
- type: ErrorCatalog
  name: Error catalog
  url: errors/bestprice-problem-types.yml
- type: Lifecycle
  name: Versioning and support lifecycle
  url: lifecycle/bestprice-lifecycle.yml
- type: ChangeLog
  name: Version history (MCP Registry + extension releases)
  url: changelog/bestprice-changelog.yml
- type: Plans
  name: Plans and pricing (free public, no plans published)
  url: plans/bestprice-plans-pricing.yml
- type: RateLimits
  name: Rate limits and result caps
  url: rate-limits/bestprice-rate-limits.yml
- type: Packages
  name: Distribution and client extension manifests
  url: packages/bestprice-packages.yml
- type: Components
  name: MCP Apps UI card
  url: components/bestprice-components.yml
- type: DataModel
  name: Entity graph
  url: data-model/bestprice-data-model.yml
- type: Security
  name: Vulnerability disclosure program
  url: security/bestprice-vulnerability-disclosure.yml
- type: VulnerabilityDisclosure
  name: Vulnerability disclosure detail
  url: security/bestprice-vulnerability-disclosure.yml
- type: AgentSkill
  name: Packaged agent skills for the BestPrice MCP tools
  url: skills/_index.yml
- type: GitHubOrganization
  name: TheBestCo on GitHub
  url: https://github.com/TheBestCo
- type: GitHubRepository
  name: BestPrice MCP integration repository
  url: https://github.com/TheBestCo/bestprice-mcp
- type: DeveloperPortal
  name: BestPrice for AI
  url: https://www.bestprice.gr/mcp
- type: Documentation
  name: BestPrice MCP documentation
  url: https://www.bestprice.gr/mcp
- type: Blog
  name: BestPrice Stories
  url: https://www.bestprice.gr/stories
- type: Support
  name: BestPrice contact
  url: https://www.bestprice.gr/contact
- type: TermsOfService
  name: Terms of service
  url: https://www.bestprice.gr/policies/terms
- type: PrivacyPolicy
  name: Privacy policy
  url: https://www.bestprice.gr/policies/privacy
apis:
- aid: bestprice.gr:shopping-mcp
  name: BestPrice Shopping MCP
  description: Read-only shopping tools for product recommendations and shopping decisions, grouped-product search, current
    Greek merchant offers and delivered totals, and price history.
  image: https://www.bestprice.gr/images/logo.svg
  humanURL: https://www.bestprice.gr/mcp
  baseURL: https://mcp.bestprice.gr/mcp
  tags:
  - Shopping
  - Product Search
  - Offers
  - Price History
  - MCP
  - Greece
  - Shopping Decisions
  - Product Recommendations
  - Delivered Price
  tags_raw:
  - shopping
  - product search
  - offers
  - price history
  - MCP
  - Greece
  - shopping decisions
  - product recommendations
  - delivered price
  properties:
  - type: MCPServer
    name: Production Streamable HTTP endpoint
    url: https://mcp.bestprice.gr/mcp
  - type: Documentation
    name: BestPrice MCP documentation
    url: https://www.bestprice.gr/mcp
  - type: Documentation
    name: BestPrice MCP documentation (English)
    url: https://www.bestprice.gr/en/mcp
  - type: APICatalog
    name: Agentic Resource Discovery manifest
    url: https://www.bestprice.gr/.well-known/ard.json
  - type: GitHubRepository
    name: Provider integration and submission bundle
    url: https://github.com/TheBestCo/bestprice-mcp
  - type: LLMsTxt
    name: BestPrice AI-readable site guide
    url: https://www.bestprice.gr/llms.txt
  - type: SecurityTxt
    name: Security contact
    url: https://www.bestprice.gr/.well-known/security.txt
  - type: TermsOfService
    name: Terms of service
    url: https://www.bestprice.gr/policies/terms
  - type: PrivacyPolicy
    name: Privacy policy
    url: https://www.bestprice.gr/policies/privacy
  - type: Support
    name: BestPrice contact
    url: https://www.bestprice.gr/contact
  - type: MCPServer
    name: Probed MCP server profile (tools, schemas, deployment)
    url: mcp/bestprice-mcp.yml
  - type: ToolManifest
    name: Verbatim MCP tools/list response
    url: mcp/bestprice-tools.json
  - type: JSONSchema
    name: search_products input schema
    url: json-schema/bestprice-search-products-input.json
  - type: JSONSchema
    name: search_products output schema
    url: json-schema/bestprice-search-products-output.json
  - type: JSONSchema
    name: compare_offers input schema
    url: json-schema/bestprice-compare-offers-input.json
  - type: JSONSchema
    name: compare_offers output schema
    url: json-schema/bestprice-compare-offers-output.json
  - type: JSONSchema
    name: get_price_history input schema
    url: json-schema/bestprice-get-price-history-input.json
  - type: JSONSchema
    name: get_price_history output schema
    url: json-schema/bestprice-get-price-history-output.json
  - type: JSONSchema
    name: get_shopping_decision input schema
    url: json-schema/bestprice-get-shopping-decision-input.json
  - type: JSONSchema
    name: get_shopping_decision output schema
    url: json-schema/bestprice-get-shopping-decision-output.json
  - type: Authentication
    name: Authentication profile (anonymous, verified)
    url: authentication/bestprice-authentication.yml
  - type: RateLimits
    name: Rate limits and per-call result caps
    url: rate-limits/bestprice-rate-limits.yml
  - type: ErrorCatalog
    name: Error envelopes and validation behaviour
    url: errors/bestprice-problem-types.yml
  - type: DataModel
    name: Entity graph derived from the tool schemas
    url: data-model/bestprice-data-model.yml
  - type: Conventions
    name: Runtime semantics, safety conventions and reversibility
    url: conventions/bestprice-conventions.yml
  - type: APIReference
    name: BestPrice MCP tool reference
    url: https://www.bestprice.gr/mcp#mcp-tools
  - type: GettingStarted
    name: Connect in a minute
    url: https://www.bestprice.gr/mcp#mcp-quickstart
  prompts:
  - type: AgentPrompt
    name: BestPrice shopping examples
    description: Provider-authored example requests for the public read-only shopping tools.
    data:
    - prompt: What is the best phone under €500 in Greece with a good camera, NFC, and 5G?
    - prompt: Which Greek store has the lowest delivered price for Sony WH-1000XM5 to postcode 11527?
    - prompt: Is €799 a good price for this TV compared with the last six months?
    - prompt: Ποιο laptop να πάρω έως 700€ για σχολή με τουλάχιστον 16GB RAM;
    - prompt: Πού θα βρω αυτό το προϊόν φθηνότερα μαζί με τα μεταφορικά;
  contact:
  - FN: BestPrice.gr Support
    organizationName: BestPrice.gr
    email: feedback@bestprice.gr
    url: https://www.bestprice.gr/contact
x-coverage:
  state: blocked
  reason: bot-challenge
  detail: GET https://www.bestprice.gr/openapi.json returned HTTP 403 bot protection.
  evidence:
  - url: https://www.bestprice.gr/openapi.json
    status: 403
  checked: '2026-10-29'
x-enrichment:
  date: '2026-10-29'
  status: minimal
  artifacts_added: 11
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

BestPrice Agent Commerce API — frequently asked questions

Does BestPrice Agent Commerce have an API?

Yes. APIs.io lists 1 API from BestPrice Agent Commerce, including BestPrice Shopping MCP.

How do I authenticate with the BestPrice Agent Commerce API?

BestPrice Agent Commerce uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Bestprice Authentication.

How much does the BestPrice Agent Commerce API cost?

APIs.io lists 1 pricing plan for BestPrice Agent Commerce, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does BestPrice Agent Commerce have an MCP server?

Yes. APIs.io lists 1 MCP server for BestPrice Agent Commerce: Read-only shopping decisions, product search, offers, and price history for Greece.

Is the BestPrice Agent Commerce API ready for AI agents?

BestPrice Agent Commerce has a Kin Score of 47.2 out of 100 (developing) and an Agent Readiness score of 10.1 (agent-aware), scored by API Evangelist on 2026-11-01.

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