generated: '2026-09-19'
method: searched
status: published
source: https://www.npmjs.com/package/@greenhelix/mcp-server (README) + https://github.com/mirni/a2a/blob/main/sdk-ts/mcp-server/server.json
  + live GET https://api.greenhelix.net/v1/pricing on 2026-09-19
description: >-
  Green Helix ships a first-party LOCAL (stdio) MCP server, @greenhelix/mcp-server 0.1.0 on npm, that exposes the
  A2A Commerce Gateway's tool catalog to Claude Desktop, Cursor, Claude Code, Windsurf and Zed. There is NO hosted/remote
  MCP endpoint: POST tools/list to https://api.greenhelix.net/mcp, /v1/mcp and /sse all return RFC 9457 404s and
  mcp.greenhelix.net does not resolve. The server discovers tools at runtime from GET /v1/pricing (anonymous) and
  invokes them through POST /v1/batch with the A2A_API_KEY. The provider's MCP-registry manifest names the server
  net.greenhelix/mcp-server, but the official registry (registry.modelcontextprotocol.io) returns zero results for
  it, so it is not published there. The README says 141 tools; the live catalog serves 137.
deployment:
  mode: local-stdio
  endpoint: null
  install: npx -y @greenhelix/mcp-server
  package: https://www.npmjs.com/package/@greenhelix/mcp-server
  auth: api-key
  auth_detail: env A2A_API_KEY (required; a2a_{tier}_{24hex}, free tier self-issued via POST /v1/register); env
    A2A_BASE_URL optional (default https://api.greenhelix.net)
  verified: searched
  remote_probes:
  - url: https://api.greenhelix.net/mcp
    method: POST tools/list
    http_status: 404
  - url: https://api.greenhelix.net/v1/mcp
    method: POST tools/list
    http_status: 404
  - url: https://api.greenhelix.net/sse
    method: POST tools/list
    http_status: 404
  - url: https://mcp.greenhelix.net/mcp
    method: POST tools/list
    http_status: NXDOMAIN
  checked: '2026-09-19'
local:
  name: '@greenhelix/mcp-server'
  transport: stdio
  version: 0.1.0
  published: '2026-04-13'
  install: npx -y @greenhelix/mcp-server
  bin: a2a-mcp-server
  source: https://github.com/mirni/a2a/tree/main/sdk-ts/mcp-server
  registry_manifest: sdk-ts/mcp-server/server.json (name net.greenhelix/mcp-server, schema 2025-12-11)
  official_registry: not found — https://registry.modelcontextprotocol.io/v0/servers?search=net.greenhelix returns
    count 0
  client_config:
    mcpServers:
      a2a:
        command: npx
        args:
        - -y
        - '@greenhelix/mcp-server'
        env:
          A2A_API_KEY: a2a_free_...
  how_it_works: Tool discovery via GET /v1/pricing; each MCP tools/call becomes a single-item POST /v1/batch; pricing
    and tier metadata are folded into each tool description.
tool_catalog:
  file: mcp/greenhelix-net-tool-catalog.json
  url: https://api.greenhelix.net/v1/pricing
  fetched: '2026-09-19'
  http_status: 200
  tools: 137
  schemas: every tool carries input_schema (JSON Schema) + output_schema + pricing.per_call + sla.max_latency_ms
    + tier_required
  by_service:
    billing: 18
    payments: 22
    marketplace: 13
    trust: 6
    paywall: 5
    events: 2
    webhooks: 5
    identity: 17
    disputes: 5
    messaging: 3
    admin: 4
    stripe: 13
    github: 10
    postgres: 6
    event_bus: 2
    gatekeeper: 6
  by_tier:
    free: 67
    pro: 64
    starter: 6
  crosswalk: mcp/greenhelix-net-tool-crosswalk.yml
tools:
- name: get_balance
  service: billing
  description: Get the current wallet balance for an agent in a specific currency.
  tier: free
  per_call: 0.0
- name: get_usage_summary
  service: billing
  description: Get usage summary (total cost, calls, tokens) for an agent.
  tier: free
  per_call: 0.0
- name: deposit
  service: billing
  description: Deposit funds into an agent's wallet in a specific currency.
  tier: free
  per_call: 0.0
- name: get_transactions
  service: billing
  description: Get the transaction ledger for an agent (deposits, withdrawals, charges).
  tier: free
  per_call: 0.0
- name: create_intent
  service: payments
  description: Create a payment intent between two agents.
  tier: free
  per_call: null
- name: get_intent
  service: payments
  description: Get details of a payment intent by its ID.
  tier: free
  per_call: 0.0
- name: get_escrow
  service: payments
  description: Get details of an escrow by its ID.
  tier: free
  per_call: 0.0
- name: capture_intent
  service: payments
  description: Capture (settle) a pending payment intent.
  tier: free
  per_call: 0.0
- name: partial_capture
  service: payments
  description: Partially capture a pending payment intent for a specified amount.
  tier: pro
  per_call: 0.0
- name: create_escrow
  service: payments
  description: Create an escrow between two agents. Funds are held from payer immediately.
  tier: pro
  per_call: null
- name: release_escrow
  service: payments
  description: Release escrowed funds to the payee.
  tier: pro
  per_call: 0.0
- name: cancel_escrow
  service: payments
  description: Cancel a held escrow and refund the payer.
  tier: free
  per_call: 0.0
- name: list_intents
  service: payments
  description: List payment intents for an agent, optionally filtered by status.
  tier: free
  per_call: 0.0
- name: list_escrows
  service: payments
  description: List escrows for an agent, optionally filtered by status.
  tier: free
  per_call: 0.0
- name: refund_intent
  service: payments
  description: 'Refund a payment intent: voids if pending, reverse-transfers if settled.'
  tier: free
  per_call: 0.0
- name: refund_settlement
  service: payments
  description: Refund a settled payment (full or partial). If amount is omitted, refunds the full remaining balance.
  tier: starter
  per_call: 0.0
- name: search_services
  service: marketplace
  description: Search the marketplace for available services. Supports pagination via paginate=true.
  tier: free
  per_call: 0.0
- name: search_agents
  service: marketplace
  description: Search for agents by capability keywords. Searches service names, descriptions, tools, tags, and
    categories. Supports pagination via paginate=true.
  tier: free
  per_call: 0.0
- name: best_match
  service: marketplace
  description: Find the best matching services for a query with ranking.
  tier: free
  per_call: 0.1
- name: register_service
  service: marketplace
  description: Register a new service in the marketplace.
  tier: pro
  per_call: 0.0
- name: get_service
  service: marketplace
  description: Get a marketplace service by its ID.
  tier: free
  per_call: 0.0
- name: update_service
  service: marketplace
  description: Update fields on an existing marketplace service.
  tier: free
  per_call: 0.0
- name: deactivate_service
  service: marketplace
  description: Deactivate a marketplace service listing.
  tier: free
  per_call: 0.0
- name: get_trust_score
  service: trust
  description: Get the trust score for a server.
  tier: free
  per_call: 0.0
- name: search_servers
  service: trust
  description: Search for servers by name or minimum trust score.
  tier: free
  per_call: 0.0
- name: get_payment_history
  service: payments
  description: Get payment history for an agent.
  tier: free
  per_call: 0.0
- name: register_server
  service: trust
  description: Register a new server for trust tracking.
  tier: free
  per_call: 0.0
- name: delete_server
  service: trust
  description: Delete a server and all its associated trust data (probes, scans, scores).
  tier: pro
  per_call: 0.0
- name: update_server
  service: trust
  description: Update a server's name and/or URL.
  tier: pro
  per_call: 0.0
- name: get_global_audit_log
  service: paywall
  description: Get the global audit log across all agents (admin operation).
  tier: pro
  per_call: 0.0
- name: publish_event
  service: events
  description: Publish an event to the cross-product event bus.
  tier: free
  per_call: 0.0
- name: get_events
  service: events
  description: Query events from the event bus with optional type filter and offset.
  tier: free
  per_call: 0.0
- name: register_webhook
  service: webhooks
  description: Register a webhook endpoint to receive event notifications.
  tier: pro
  per_call: 0.0
- name: list_webhooks
  service: webhooks
  description: List all registered webhooks for an agent. Supports pagination via paginate=true.
  tier: pro
  per_call: 0.0
- name: delete_webhook
  service: webhooks
  description: Delete (deactivate) a webhook by its ID.
  tier: pro
  per_call: 0.0
- name: get_webhook_deliveries
  service: webhooks
  description: Get delivery history for a webhook endpoint.
  tier: pro
  per_call: 0.0
- name: process_due_subscriptions
  service: payments
  description: Trigger processing of all due subscriptions and expired escrows.
  tier: pro
  per_call: 0.0
- name: register_agent
  service: identity
  description: Register a cryptographic identity for an agent. Generates Ed25519 keypair.
  tier: free
  per_call: 0.0
- name: verify_agent
  service: identity
  description: Verify that a message was signed by the claimed agent.
  tier: free
  per_call: 0.0
- name: submit_metrics
  service: identity
  description: Submit trading bot metrics (Sharpe, drawdown, latency, etc.) for platform attestation.
  tier: pro
  per_call: 0.0
- name: get_agent_identity
  service: identity
  description: Get the cryptographic identity and public key for an agent.
  tier: free
  per_call: 0.0
- name: get_verified_claims
  service: identity
  description: Get all verified metric claims for an agent (e.g., Sharpe >= 2.0).
  tier: free
  per_call: 0.0
- name: get_agent_reputation
  service: identity
  description: Get the consumer-side reputation score for an agent.
  tier: free
  per_call: 0.0
- name: create_subscription
  service: payments
  description: Create a recurring payment subscription between two agents.
  tier: starter
  per_call: 0.0
- name: cancel_subscription
  service: payments
  description: Cancel an active or suspended subscription.
  tier: starter
  per_call: 0.0
- name: get_subscription
  service: payments
  description: Get details of a subscription by ID.
  tier: starter
  per_call: 0.0
- name: list_subscriptions
  service: payments
  description: List subscriptions for an agent (as payer or payee).
  tier: starter
  per_call: 0.0
- name: reactivate_subscription
  service: payments
  description: Reactivate a suspended subscription.
  tier: starter
  per_call: 0.0
- name: create_wallet
  service: billing
  description: Create a new wallet for an agent (self-service onboarding).
  tier: free
  per_call: 0.0
- name: withdraw
  service: billing
  description: Withdraw funds from an agent's wallet in a specific currency.
  tier: free
  per_call: 0.0
- name: search_agents_by_metrics
  service: identity
  description: Search for agents with verified metric claims (e.g., find bots with Sharpe >= 2.0).
  tier: pro
  per_call: 0.0
- name: create_performance_escrow
  service: payments
  description: Create an escrow that auto-releases when payee's verified metrics meet a threshold.
  tier: pro
  per_call: null
- name: check_performance_escrow
  service: payments
  description: Check if a performance-gated escrow's metric threshold is met and auto-release if so.
  tier: pro
  per_call: 0.0
- name: open_dispute
  service: disputes
  description: Open a dispute against an escrow.
  tier: pro
  per_call: 0.0
- name: respond_to_dispute
  service: disputes
  description: Respond to an open dispute.
  tier: pro
  per_call: 0.0
- name: resolve_dispute
  service: disputes
  description: Resolve a dispute by refunding payer or releasing funds to payee.
  tier: pro
  per_call: 0.0
- name: get_dispute
  service: disputes
  description: Get details of a dispute by its ID.
  tier: free
  per_call: 0.0
- name: list_disputes
  service: disputes
  description: List disputes where the agent is opener or respondent.
  tier: free
  per_call: 0.0
- name: rotate_key
  service: paywall
  description: 'Rotate an API key: revoke the current key and create a new one with the same tier.'
  tier: free
  per_call: 0.0
- name: build_claim_chain
  service: identity
  description: Build a Merkle tree from an agent's attestation history for verifiable claim chains.
  tier: pro
  per_call: 0.0
- name: get_claim_chains
  service: identity
  description: Get stored Merkle claim chains for an agent.
  tier: pro
  per_call: 0.0
- name: send_message
  service: messaging
  description: Send a typed message to another agent.
  tier: free
  per_call: 0.0
- name: get_messages
  service: messaging
  description: Get messages for an agent (sent and received).
  tier: free
  per_call: 0.0
- name: negotiate_price
  service: messaging
  description: Start a price negotiation with another agent.
  tier: free
  per_call: 0.0
- name: check_sla_compliance
  service: trust
  description: Check if a server meets its claimed SLA using trust probe data.
  tier: pro
  per_call: 0.0
- name: list_strategies
  service: marketplace
  description: List signal provider strategies in the marketplace.
  tier: free
  per_call: 0.0
- name: get_service_analytics
  service: billing
  description: Get usage analytics for an agent (total calls, cost, tokens).
  tier: free
  per_call: 0.0
- name: get_revenue_report
  service: billing
  description: Get revenue report for a provider agent (incoming payments).
  tier: free
  per_call: 0.0
- name: create_split_intent
  service: payments
  description: Create a split payment across multiple payees with percentage-based distribution.
  tier: pro
  per_call: null
- name: backup_database
  service: admin
  description: Create a hot backup of a SQLite database, optionally encrypted with Fernet.
  tier: pro
  per_call: 0.0
- name: restore_database
  service: admin
  description: Restore a SQLite database from a backup file, with optional decryption.
  tier: pro
  per_call: 0.0
- name: check_db_integrity
  service: admin
  description: Run SQLite integrity check and return page diagnostics for a database.
  tier: pro
  per_call: 0.0
- name: list_backups
  service: admin
  description: List all available database backup files.
  tier: pro
  per_call: 0.0
- name: stripe_list_customers
  service: stripe
  description: List Stripe customers.
  tier: pro
  per_call: 0.01
- name: stripe_create_customer
  service: stripe
  description: Create a Stripe customer.
  tier: pro
  per_call: 0.01
- name: stripe_list_products
  service: stripe
  description: List Stripe products.
  tier: pro
  per_call: 0.01
- name: stripe_create_product
  service: stripe
  description: Create a Stripe product.
  tier: pro
  per_call: 0.01
- name: stripe_list_prices
  service: stripe
  description: List Stripe prices.
  tier: pro
  per_call: 0.01
- name: stripe_create_price
  service: stripe
  description: Create a Stripe price.
  tier: pro
  per_call: 0.01
- name: stripe_create_payment_link
  service: stripe
  description: Create a Stripe payment link.
  tier: pro
  per_call: 0.01
- name: stripe_list_invoices
  service: stripe
  description: List Stripe invoices.
  tier: pro
  per_call: 0.01
- name: stripe_create_invoice
  service: stripe
  description: Create a Stripe invoice.
  tier: pro
  per_call: 0.01
- name: stripe_list_subscriptions
  service: stripe
  description: List Stripe subscriptions.
  tier: pro
  per_call: 0.01
- name: stripe_cancel_subscription
  service: stripe
  description: Cancel a Stripe subscription.
  tier: pro
  per_call: 0.01
- name: stripe_create_refund
  service: stripe
  description: Create a Stripe refund.
  tier: pro
  per_call: 0.01
- name: stripe_retrieve_balance
  service: stripe
  description: Retrieve Stripe account balance.
  tier: pro
  per_call: 0.01
- name: github_list_repos
  service: github
  description: List GitHub repositories.
  tier: pro
  per_call: 0.005
- name: github_get_repo
  service: github
  description: Get GitHub repository metadata.
  tier: pro
  per_call: 0.005
- name: github_list_issues
  service: github
  description: List issues in a repository.
  tier: pro
  per_call: 0.005
- name: github_create_issue
  service: github
  description: Create an issue in a repository.
  tier: pro
  per_call: 0.005
- name: github_list_pull_requests
  service: github
  description: List pull requests.
  tier: pro
  per_call: 0.005
- name: github_get_pull_request
  service: github
  description: Get pull request details.
  tier: pro
  per_call: 0.005
- name: github_create_pull_request
  service: github
  description: Create a pull request.
  tier: pro
  per_call: 0.005
- name: github_list_commits
  service: github
  description: List commits in a repository.
  tier: pro
  per_call: 0.005
- name: github_get_file_contents
  service: github
  description: Get file contents from a repository.
  tier: pro
  per_call: 0.005
- name: github_search_code
  service: github
  description: Search code across repositories.
  tier: pro
  per_call: 0.005
- name: pg_query
  service: postgres
  description: Execute a read-only SQL query.
  tier: pro
  per_call: 0.01
- name: pg_execute
  service: postgres
  description: Execute a SQL statement (if write-enabled).
  tier: pro
  per_call: 0.01
- name: pg_list_tables
  service: postgres
  description: List tables in the database.
  tier: pro
  per_call: 0.01
- name: pg_describe_table
  service: postgres
  description: Describe a table's columns and types.
  tier: pro
  per_call: 0.01
- name: pg_explain_query
  service: postgres
  description: EXPLAIN a SQL query plan.
  tier: pro
  per_call: 0.01
- name: pg_list_schemas
  service: postgres
  description: List schemas in the database.
  tier: pro
  per_call: 0.01
- name: get_metrics_timeseries
  service: billing
  description: Get per-agent usage metrics bucketed by hour or day.
  tier: free
  per_call: 0.0
- name: get_agent_leaderboard
  service: billing
  description: Rank agents by total spend, calls, trust score, revenue, or rating.
  tier: free
  per_call: 0.0
- name: register_event_schema
  service: event_bus
  description: Register a JSON schema for an event type in the event bus.
  tier: free
  per_call: 0.0
- name: get_event_schema
  service: event_bus
  description: Retrieve the registered JSON schema for an event type.
  tier: free
  per_call: 0.0
- name: test_webhook
  service: webhooks
  description: Send a test ping event to a registered webhook and return the delivery result.
  tier: free
  per_call: 0.0
- name: create_api_key
  service: paywall
  description: Create a new API key for yourself (self-service). Only same-agent or admin can create.
  tier: free
  per_call: 0.0
- name: get_volume_discount
  service: billing
  description: Calculate discounted price based on historical usage volume.
  tier: free
  per_call: 0.0
- name: estimate_cost
  service: billing
  description: Calculate projected cost of N calls to a specific tool without executing them.
  tier: free
  per_call: 0.0
- name: rate_service
  service: marketplace
  description: Rate a marketplace service (1-5). One rating per agent per service (upsert).
  tier: free
  per_call: 0.0
- name: get_service_ratings
  service: marketplace
  description: Get ratings and reviews for a marketplace service.
  tier: free
  per_call: 0.0
- name: set_budget_cap
  service: billing
  description: Set daily/monthly spending caps and alert thresholds for an agent.
  tier: free
  per_call: 0.0
- name: get_budget_status
  service: billing
  description: Get current spending vs budget caps and alert status for an agent.
  tier: free
  per_call: 0.0
- name: freeze_wallet
  service: billing
  description: Freeze a wallet, blocking all deposits and withdrawals. Admin only.
  tier: pro
  per_call: 0.0
- name: unfreeze_wallet
  service: billing
  description: Unfreeze a wallet, allowing deposits and withdrawals again. Admin only.
  tier: pro
  per_call: 0.0
- name: create_org
  service: identity
  description: Create a new organization.
  tier: free
  per_call: 0.0
- name: get_org
  service: identity
  description: Get organization details and members.
  tier: free
  per_call: 0.0
- name: add_agent_to_org
  service: identity
  description: Add an agent to an organization.
  tier: free
  per_call: 0.0
- name: remove_agent_from_org
  service: identity
  description: Remove an agent from an organization. Cannot remove the last owner.
  tier: free
  per_call: 0.0
- name: list_api_keys
  service: paywall
  description: List all API keys for an agent. Returns truncated key hash prefix, tier, scopes, and created_at (never
    the full key or hash). Supports pagination via paginate=true.
  tier: free
  per_call: 0.0
- name: revoke_api_key
  service: paywall
  description: Soft-delete (revoke) an API key by its hash prefix. The key will no longer be usable for authentication.
  tier: free
  per_call: 0.0
- name: get_exchange_rate
  service: billing
  description: Query the exchange rate between two supported currencies.
  tier: free
  per_call: 0.0
- name: convert_currency
  service: billing
  description: Convert funds between currency balances for an agent. Withdraws from source currency and deposits
    converted amount to target currency.
  tier: free
  per_call: 0.0
- name: ingest_metrics
  service: identity
  description: Ingest time-series metric data points for an agent. Supports optional Ed25519 signature verification
    for authenticated submissions.
  tier: free
  per_call: 0.0
- name: query_metrics
  service: identity
  description: Query time-series metric data for a specific agent and metric name, with optional time range filtering.
  tier: free
  per_call: 0.0
- name: get_metric_deltas
  service: identity
  description: Get performance deltas (current vs previous value) for an agent across all metrics or a specific
    metric.
  tier: free
  per_call: 0.0
- name: get_metric_averages
  service: identity
  description: Get pre-computed rolling averages for an agent over a specified period (7d, 30d, or 90d).
  tier: free
  per_call: 0.0
- name: submit_verification
  service: gatekeeper
  description: Submit a formal verification job. Each property can be written as raw Z3 SMT-LIB2 (language='z3_smt2')
    or as a structured JSON policy (language='json_policy', compiled server-side to SMT-LIB2). Returns a job ID
    for tracking.
  tier: pro
  per_call: 5.0
- name: get_verification_status
  service: gatekeeper
  description: Get the current status and result of a verification job.
  tier: pro
  per_call: 0.0
- name: list_verification_jobs
  service: gatekeeper
  description: List verification jobs for an agent with optional status filter.
  tier: pro
  per_call: 0.0
- name: cancel_verification
  service: gatekeeper
  description: Cancel a pending or running verification job.
  tier: pro
  per_call: 0.0
- name: get_proof
  service: gatekeeper
  description: Retrieve a formal verification proof artifact by ID.
  tier: pro
  per_call: 0.0
- name: verify_proof
  service: gatekeeper
  description: Verify a formal verification proof by its SHA3-256 hash. Returns validity status.
  tier: free
  per_call: 0.0
- name: atlas_discover
  service: marketplace
  description: 'Enriched agent discovery: marketplace search + trust breakdown + reputation + ratings → Atlas Score.'
  tier: free
  per_call: 0.0
- name: atlas_preflight
  service: marketplace
  description: 'Pre-transaction verification: endpoint reachable? trust OK? wallet active? pricing unchanged?'
  tier: free
  per_call: 0.0
- name: atlas_broker
  service: marketplace
  description: 'One-call brokering: discover → preflight → create payment intent.'
  tier: pro
  per_call: 0.5