aid: greenhelix-net
name: Green Helix
description: 'Green Helix Consulting, LLC builds infrastructure for autonomous AI-agent commerce. Its A2A Commerce
  Gateway (api.greenhelix.net, v1.4.10) is a single REST API of 137 tools across 16 services: per-agent wallets
  and metered billing, authorize-then-capture payment intents, standard and performance-gated escrow, subscriptions
  and split payments, Ed25519 cryptographic agent identity with verifiable claims and reputation, a service marketplace
  with matching and ratings, composite trust scoring and SLA checks, end-to-end encrypted agent messaging with price
  negotiation, dispute resolution, HMAC-signed webhooks and an event bus, plus Stripe, GitHub and PostgreSQL connectors.
  It publishes an OpenAPI 3.1 contract, a machine-readable tool and tier catalog, an A2A agent card, an ai-plugin.json,
  Python and TypeScript SDKs, a local MCP server, and a sandbox that resets on every deploy. Errors are RFC 9457,
  rate limits are signaled in headers, and x402 payment proofs are accepted as an alternative to API keys.'
url: https://raw.githubusercontent.com/api-evangelist/greenhelix-net/refs/heads/main/apis.yml
x-type: company
x-source: harvest:a2a-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-09-19 — real OpenAPI, agent card, MCP server, SDKs and tool catalog found
specificationVersion: '0.20'
created: '2026-09-19'
modified: '2026-09-19'
tags:
- Agents
- Agentic Commerce
- Payments
- Escrow
- Billing
- Marketplace
- Identity
- Trust
- Messaging
- Webhook
- MCP
- A2A
- x402
tags_raw:
- Agents
- Agent Commerce
- Payments
- Escrow
- Billing
- Marketplace
- Identity
- Trust
- Messaging
- Webhooks
- MCP
- A2A
- x402
apis:
- aid: greenhelix-net:a2a-commerce-gateway-api
  name: A2A Commerce Gateway API
  description: 'REST API for agent-to-agent commerce: billing and wallets, payment intents and escrow, subscriptions,
    identity and reputation, marketplace, trust scoring, messaging and negotiation, disputes, webhooks, event bus,
    API keys and database operations. 114 paths / 132 operations under /v1 with a global choice of Bearer API key,
    X-API-Key or x402 X-PAYMENT security. The former POST /v1/execute tool dispatcher is 410 Gone (sunset 2026-10-01);
    POST /v1/batch remains for multi-tool dispatch and is how the MCP server invokes tools.'
  humanURL: https://api.greenhelix.net/docs
  baseURL: https://api.greenhelix.net
  tags:
  - Payments
  - Escrow
  - Billing
  - Identity
  - Marketplace
  - Trust
  - Messaging
  - Disputes
  - Webhook
  tags_raw:
  - Payments
  - Escrow
  - Billing
  - Identity
  - Marketplace
  - Trust
  - Messaging
  - Disputes
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/greenhelix-net-a2a-commerce-gateway-openapi.yml
  - type: OpenAPI
    url: https://api.greenhelix.net/v1/openapi.json
    name: Provider-hosted OpenAPI 3.1 (verbatim copy in openapi/_original/)
  - type: Overlay
    url: overlays/greenhelix-net-a2a-commerce-gateway-overlay.yaml
  - type: Documentation
    url: https://www.greenhelix.net/docs.html
  - type: APIReference
    url: https://api.greenhelix.net/docs
  - type: APIReference
    url: https://github.com/mirni/a2a/blob/main/docs/api-reference.md
    name: Tool-by-tool reference, error table, rate limits, idempotency
  - type: ToolCrosswalk
    url: mcp/greenhelix-net-tool-crosswalk.yml
  - type: Sandbox
    url: https://www.greenhelix.net/docs.html#sandbox
    name: Sandbox docs — host https://sandbox.greenhelix.net (its root answers an RFC 9457 404; use /v1/health)
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/greenhelix-net-domain-security.yml
- type: Authentication
  url: authentication/greenhelix-net-authentication.yml
- type: Website
  url: https://greenhelix.net/
- type: Documentation
  url: https://www.greenhelix.net/docs.html
- type: GettingStarted
  url: https://www.greenhelix.net/docs.html#getting-started
- type: APIReference
  url: https://api.greenhelix.net/docs
- type: GitHub
  url: https://github.com/mirni/a2a
  name: Source monorepo (gateway, SDKs, MCP server, docs); published under a personal account, not an organization
- type: Pricing
  url: https://github.com/mirni/a2a#pricing
- type: ChangeLog
  url: https://github.com/mirni/a2a/blob/main/CHANGELOG.md
- type: Support
  url: https://www.greenhelix.net/index.html#contact
  name: Contact section; support@greenhelix.net per ai-plugin.json
- type: Sandbox
  url: sandbox/greenhelix-net-sandbox.yml
- type: AgentCard
  url: a2a/greenhelix-net-a2a.yml
- type: WellKnown
  url: well-known/greenhelix-net-well-known.yml
- type: MCPServer
  url: mcp/greenhelix-net-mcp.yml
- type: ToolCrosswalk
  url: mcp/greenhelix-net-tool-crosswalk.yml
- type: Packages
  url: packages/greenhelix-net-packages.yml
- type: SDKs
  url: packages/greenhelix-net-packages.yml
- type: LLMsTxt
  url: llms/greenhelix-net-llms.txt
- type: Conformance
  url: conformance/greenhelix-net-conformance.yml
- type: ErrorCatalog
  url: errors/greenhelix-net-problem-types.yml
- type: Lifecycle
  url: lifecycle/greenhelix-net-lifecycle.yml
- type: Deprecation
  url: lifecycle/greenhelix-net-lifecycle.yml
- type: Conventions
  url: conventions/greenhelix-net-conventions.yml
- type: Idempotency
  url: conventions/greenhelix-net-conventions.yml
- type: ChangeLog
  url: changelog/greenhelix-net-changelog.yml
- type: Plans
  url: plans/greenhelix-net-plans-pricing.yml
- type: RateLimits
  url: rate-limits/greenhelix-net-rate-limits.yml
- type: Webhooks
  url: asyncapi/greenhelix-net-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/greenhelix-net-data-model.yml
- type: RegulatoryPosture
  url: regulatory/greenhelix-net-regulatory-posture.yml
x-enrichment:
  date: '2026-09-19'
  status: enriched
  artifacts_added: 30
  pass: local-v3