generated: '2026-09-19'
method: probed
source: https://registry.npmjs.org/mercury-x402-mcp
sources:
- https://registry.npmjs.org/mercury-x402-mcp (time: 1.0.0 2026-06-05, 1.0.1 2026-06-07; README says 17 tools)
- https://network.mercury-hq.com/terms and /privacy (effective / last updated 2026-06-04)
- https://network.mercury-hq.com/market (marketRead asOf 2026-06)
- POST https://network.mercury-hq.com/mcp tools/list (18 tools on 2026-09-19) and /health (catalogCount 28)
- response header server Fly/57f2b87df (2026-09-16)
- probes of /changelog (404), /status (404); no GitHub org or releases page exists
description: >-
  MERCURY publishes no changelog, release notes or version history (/changelog is 404; there is no GitHub
  org). The dated facts below are read from machine sources - registry timestamps, document effective
  dates and live counts - so the scheme is honest but coarse. The one API-level change evidenced is the
  growth of the paid catalog from the 17 tools the June stdio package describes to the 18 tools / 19
  services live in September (cited-dns is the addition: it is the only SKU with a domain-first
  parameter shape and its own "Domain" faculty on /university).
scheme: none published; live-generated OpenAPI (info.version "1"); server build id in the response header
current_version:
  storefront_api: '1 (mercury-storefront/1)'
  hosted_mcp_server: 1.0.0 (protocol 2025-06-18)
  stdio_package: 1.0.1
  agent_card: 1.0.0 (A2A 0.3.0)
  server_build: Fly/57f2b87df (2026-09-16)
entries:
- version: server build 2026-09-16
  date: '2026-09-16'
  breaking: false
  additions: [18 tools on the hosted MCP server and 19 live services in /catalog and the OpenAPI (cited-dns present), /health catalogCount 28]
  highlights: 'Observed state on 2026-09-19; the Fly build date is the latest deploy evidence available.'
- version: mercury-x402-mcp 1.0.1
  date: '2026-06-07'
  breaking: false
  additions: [npm stdio MCP server describing 17 paid tools built live from the catalog plus free mercury_catalog and mercury_verify]
  highlights: 'Last package release; its discovery links point at the mercury-x402-jed.fly.dev origin rather than network.mercury-hq.com.'
- version: mercury-x402-mcp 1.0.0
  date: '2026-06-05'
  breaking: false
  additions: [first npm release]
- version: terms and privacy 2026-06-04
  date: '2026-06-04'
  breaking: false
  additions: [Terms of service effective 2026-06-04 (non-refundable, no SLA, Queensland law), Privacy Policy last updated 2026-06-04]
  highlights: 'Also the month of the "honest market read" (/market asOf 2026-06).'