whatagentsbuy-com

What Agents Buy provides independent reviews and data on x402 APIs that power agentic commerce. It aggregates transaction data from multiple blockchain networks, offers a live dashboard of USDC payments, and publishes detailed receipts and analyses for developers and researchers. The platform aims to increase transparency in the emerging AI‑driven commerce ecosystem by delivering open data and insights.

whatagentsbuy-com publishes 2 API contracts indexed on the APIs.io network, including What Agents Buy API API, and 1 more. Tagged areas include Artificial Intelligence, Commerce, Blockchain, Data, and Transparency.

The whatagentsbuy-com catalog on APIs.io includes 1 Spectral governance ruleset.

whatagentsbuy-com’s developer surface includes documentation, getting-started guide, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

18.8/100 emerging ▬ flat Agent 25/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 MCP Servers

Artificial Intelligence Commerce Blockchain Data Transparency

Kin Score

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

Composite quality — 18.8/100 · emerging

Contract Quality 7.1 / 21

Developer Ergonomics 2.9 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.9 / 10

Discoverability 4.8 / 9

Regulatory Posture 1.5 / 15

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
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):

Access Clarity scores 0.0 — up to +20.0 composite points
Contract Quality scores 33.3 — up to +16.7 composite points
Developer Ergonomics scores 17.1 — up to +16.6 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/whatagentsbuy-com/apis.yml: open an issue on github.com/api-evangelist/whatagentsbuy-com 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 →

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 2

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

What Agents Buy API

Independent trust, discovery and delivery data for the APIs behind agentic commerce.

What Agents Buy API API

Independent trust, discovery and delivery data for the APIs behind agentic commerce. Free JSON endpoints plus one paid x402 lookup. No key required for the free data.

MCP Servers 1

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

whatagentsbuy-com MCP Server

Remote MCP server at whatagentsbuy.com.

MCP SERVER

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

whatagentsbuy-com API Rules

7 rules · 5 errors 1 warnings 1 info

SPECTRAL

Security Posture 1

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

Whatagentsbuy Com Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

MCPServer

MCPServer

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Spectral

Spectral

Conformance

Conformance

ErrorCatalog

ErrorCatalog

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: whatagentsbuy-com
name: whatagentsbuy-com
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://whatagentsbuy.com/og.png
description: What Agents Buy provides independent reviews and data on x402 APIs that power agentic commerce. It aggregates
  transaction data from multiple blockchain networks, offers a live dashboard of USDC payments, and publishes detailed receipts
  and analyses for developers and researchers. The platform aims to increase transparency in the emerging AI‑driven commerce
  ecosystem by delivering open data and insights.
url: https://artifacts.apis.io/whatagentsbuy-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-31 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-31'
modified: '2026-10-31'
tags:
- Artificial Intelligence
- Commerce
- Blockchain
- Data
- Transparency
tags_raw:
- AI
- Commerce
- Blockchain
- Data
- Transparency
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/whatagentsbuy-com-rules.yml
- type: Conformance
  url: conformance/whatagentsbuy-com-conformance.yml
- type: AgentSkill
  url: skills/_index.yml
- type: ErrorCatalog
  url: errors/whatagentsbuy-com-problem-types.yml
- type: LLMsTxt
  url: llms/whatagentsbuy-com-llms.txt
- type: MCPServer
  url: mcp/whatagentsbuy-com-mcp.yml
- type: Hosts
  url: hosts/whatagentsbuy-com-hosts.yml
- type: Vendors
  url: vendors/whatagentsbuy-com-vendors.yml
- type: DomainSecurity
  url: security/whatagentsbuy-com-domain-security.yml
- type: Website
  url: https://whatagentsbuy.com/
- type: Documentation
  url: https://whatagentsbuy.com/checklist
- type: GettingStarted
  url: https://whatagentsbuy.com/grading
apis:
- name: What Agents Buy API
  description: Independent trust, discovery and delivery data for the APIs behind agentic commerce.
  humanURL: https://whatagentsbuy.com/api
  baseURL: null
  aid: whatagentsbuy-com:what-agents-buy-api
- aid: whatagentsbuy-com:what-agents-buy-api-api
  name: What Agents Buy API API
  description: 'Independent trust, discovery and delivery data for the APIs behind agentic commerce. Free JSON endpoints plus
    one paid x402 lookup.

    No key required for the free data.'
  humanURL: https://whatagentsbuy.com/openapi.json
  baseURL: https://whatagentsbuy.com
  properties:
  - type: OpenAPI
    url: openapi/_original/whatagentsbuy-com-api-openapi.json
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 14
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

whatagentsbuy-com API — frequently asked questions

Does whatagentsbuy-com have an API?

Yes. APIs.io lists 2 APIs from whatagentsbuy-com, including What Agents Buy API and What Agents Buy API API.

Is there an OpenAPI specification for the whatagentsbuy-com API?

Yes. APIs.io indexes 1 OpenAPI specification for whatagentsbuy-com, each linked for download from this page.

Does whatagentsbuy-com have an MCP server?

Yes. APIs.io lists 1 MCP server for whatagentsbuy-com: Remote MCP server at whatagentsbuy.com.

Is the whatagentsbuy-com API ready for AI agents?

whatagentsbuy-com has a Kin Score of 18.8 out of 100 (emerging) and an Agent Readiness score of 24.5 (agent-aware), scored by API Evangelist on 2026-11-06.

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