aid: merchant-0-com
name: Merchant-0
description: 'Merchant-0 is a self-described "sovereign autonomous enterprise" that sells machine-to-machine trade-intelligence
  products to other AI agents rather than to people: Grok-generated intelligence queries and market reports for
  Southeast Asian and BRICS+ trade corridors, freight-rate and HS-tariff monitoring, regulatory-risk briefs, origin
  attestations, agent DID verification and signed subscription-status proofs, priced per call or per monthly plan
  in USD and settled through a Wise business account. It identifies itself as did:web:merchant-0.com and publishes
  an A2A agent card at merchant-0.com/.well-known/agent-card.json (with a pre-0.3 agent.json beside it), a W3C DID
  document, a UCP manifest and a 95-operation OpenAPI 3.1 contract at api.merchant-0.com/openapi.json covering its
  three-step AP2 negotiate/sign/execute flow, a public service catalog, a REST-shaped "MCP" inventory manifest for
  an industrial MRO product line, and an internal CEO / agent-council control surface. The human-facing site is
  a Next.js "Command Center" dashboard; there is no developer documentation beyond the contract itself.'
url: https://raw.githubusercontent.com/api-evangelist/merchant-0-com/refs/heads/main/apis.yml
image: https://merchant-0.com/icons/icon-512.png
x-type: company
x-source: harvest:a2a-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-09-19 (local-v3; was a2a-registry harvest stub)
specificationVersion: '0.20'
created: '2026-09-19'
modified: '2026-09-19'
tags:
- Agents
- Agentic Commerce
- A2A
- AP2
- Universal Commerce Protocol
- Trade Intelligence
- Market Intelligence
- Supply Chain
- Southeast Asia
- Decentralized Identity
- agent-native
tags_raw:
- Agents
- Agent Commerce
- A2A
- AP2
- UCP
- Trade Intelligence
- Market Intelligence
- Supply Chain
- Southeast Asia
- Decentralized Identity
- agent-native
apis:
- aid: merchant-0-com:merchant-0-a2a-protocol-server-api
  name: Merchant-0 A2A Protocol Server API
  description: The REST contract behind Merchant-0's agent-commerce surface, served by a FastAPI application at
    https://api.merchant-0.com and described by a 95-operation OpenAPI 3.1.0 document at /openapi.json. Public routes
    cover service discovery (GET /api/catalog, /api/publicist/catalog), the AP2-labelled three-step purchase flow
    (POST /api/ap2/negotiate -> /api/ap2/sign -> /api/ap2/execute, with the result read back from GET /api/intel/{execution_id}),
    a free 24-hour trial grant, buyer-filed disputes, per-subscription quota (GET /api/subscriptions/{id}/usage),
    a UCP capability manifest and an MRO product catalog search, plus a REST-shaped MCP manifest (GET /api/mcp/manifest,
    /api/mcp/tools). The same document also publishes the operator's internal control plane (kill switch, credit
    limits, price bands, settlement confirmation, agent-council status) gated by a body/query sandbox_token the
    contract does not describe. The document declares no servers[], no securitySchemes, no tags and only 200/422
    responses; the base URL below was confirmed from the host the spec is served on and the agent card's agent_api
    field.
  humanURL: https://merchant-0.com/
  baseURL: https://api.merchant-0.com
  tags:
  - AP2
  - Universal Commerce Protocol
  - Agentic Commerce
  - Trade Intelligence
  tags_raw:
  - AP2
  - UCP
  - Agent Commerce
  - Trade Intelligence
  properties:
  - type: OpenAPI
    url: openapi/merchant-0-com-openapi.json
  - type: OpenAPI
    name: OpenAPI 3.1.0 (provider-hosted, verbatim)
    url: https://api.merchant-0.com/openapi.json
  - type: APIReference
    url: https://api.merchant-0.com/openapi.json
  - type: Overlay
    url: overlays/merchant-0-com-openapi-overlay.yaml
- aid: merchant-0-com:merchant-0-a2a-agent
  name: Merchant-0 A2A Agent
  description: 'Agent2Agent (A2A) surface: an agent card served from https://merchant-0.com/.well-known/agent-card.json
    (with a pre-0.3 agent.json at the legacy path) naming did:web:merchant-0.com, four skills (SEA intelligence
    query, SEA market report, agent DID verification, subscription-status proof) and https://api.merchant-0.com
    as the agent URL. The card is graded flavored against A2A 1.0.0: it carries no protocolVersion (a protocolVersions
    array instead), its capabilities object is a keyed map of priced SKUs rather than the A2A capabilities shape,
    and the JSON-RPC responder lives at POST /message/send (the card''s own url answers 405) and returns one fixed
    acknowledgement payload for every method. Real purchases run over the REST AP2 endpoints, which the card lists
    under a non-standard endpoints block.'
  humanURL: https://merchant-0.com/
  baseURL: https://api.merchant-0.com
  tags:
  - A2A
  - agent-native
  - Decentralized Identity
  properties:
  - type: AgentCard
    url: a2a/merchant-0-com-a2a.yml
  - type: AgentCard
    name: A2A Agent Card (provider-hosted)
    url: https://merchant-0.com/.well-known/agent-card.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/merchant-0-com-domain-security.yml
- type: AgenticAccess
  url: agentic-access/merchant-0-com-agentic-access.yml
- type: Website
  url: https://merchant-0.com/
- type: APIReference
  url: https://api.merchant-0.com/openapi.json
- type: Pricing
  name: Service catalog with prices (machine-readable)
  url: https://api.merchant-0.com/api/catalog
- type: AgentCard
  url: a2a/merchant-0-com-a2a.yml
- type: WellKnown
  url: well-known/merchant-0-com-well-known.yml
- type: MCPServer
  url: mcp/merchant-0-com-mcp.yml
- type: ToolCrosswalk
  url: mcp/merchant-0-com-tool-crosswalk.yml
- type: LLMsTxt
  url: llms/merchant-0-com-llms.txt
- type: Conformance
  url: conformance/merchant-0-com-conformance.yml
- type: ErrorCatalog
  url: errors/merchant-0-com-problem-types.yml
- type: Lifecycle
  url: lifecycle/merchant-0-com-lifecycle.yml
- type: Authentication
  url: authentication/merchant-0-com-authentication.yml
- type: Conventions
  url: conventions/merchant-0-com-conventions.yml
- type: DataModel
  url: data-model/merchant-0-com-data-model.yml
- type: Plans
  url: plans/merchant-0-com-plans-pricing.yml
- type: RateLimits
  url: rate-limits/merchant-0-com-rate-limits.yml
- type: Sandbox
  url: sandbox/merchant-0-com-sandbox.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-09-19'
  status: enriched
  artifacts_added: 31
  pass: local-v3