Agent MCP Directory

Zip-Codes.com: MCP server, CLI and agent surfaces

Yes: Zip-Codes.com runs a public MCP server at mcp.zip-codes.com that listed 12 tools to a client with no credentials on 4 November 2026. Examples: suggest_places, zip_lookup, zip_facts. It speaks streamable-http, protocol 2025-11-25. Open servers are readable by any agent; writes still depend on each tool.

Fact sheet

CompanyZip-Codes.com (registry title: Zip-Codes.com Location Intelligence: Spatial Analysis, Districts & 14+ Years of Demographics)
Domainzip-codes.com
CategoryDeveloper Tools (assigned by this directory from the registry description)
MCP serverVerified (No authentication)
Ora scorenone: Ora returned no cached score for zip-codes.com when asked on 5 November 2026
Company found throughthe GitHub MCP Registry; the official MCP Registry
Last verified4 November 2026

MCP server

Endpointhttps://mcp.zip-codes.com/mcp
How it was foundlisted in the GitHub MCP Registry; the official MCP Registry
Transportstreamable-http
HTTP status200
Protocol version2025-11-25
Serverzip-codes 1.0.0
Capabilitieslogging, tools
Tools12
Resources0
Prompts0
Connected4 November 2026, 20:05 UTC
Handshake time1,348 ms over 2 attempts
Resultinitialize error: Protocol version '2026-07-28' is not available through the initialize handshake.

Tools listed

12 tools

  • suggest_places
  • zip_lookup
  • zip_facts
  • quick_zip
  • city_name_rules
  • buy_credits
  • radius_search
  • about_data
  • distance
  • validate_address
  • county_reference
  • metro_area_reference

Connector log

2 connections on 4 November 2026, read-only methods only

  • 20:00:25Z https://mcp.zip-codes.com/mcp sent initialize, initialize, notifications/initialized, tools/list result verified (HTTP 200) 1719 ms
  • 20:05:14Z https://mcp.zip-codes.com/mcp sent initialize, initialize, notifications/initialized, tools/list result verified (HTTP 200) 1348 ms

Authentication

Auth typeNo authentication

The sign-in route, step by step

  1. Send the handshake to https://mcp.zip-codes.com/mcp over streamable-http. Servers on the 2026-07-28 revision answer server/discover; older servers answer initialize.
  2. Send tools/list, then resources/list and prompts/list if the capabilities name them.
  3. Send no token. The connector sent none and the server answered, so any MCP client can read this list.
  4. Calling a tool is a separate step this directory never takes.

See OAuth for MCP: client ID metadata documents and dynamic registration for how each route works.

CLI

No CLI is on record for Zip-Codes.com. The directory checks a package only where a source names one, so this is a floor: a company can ship a command line that no source read for this edition mentions. See shipping a CLI agents can use.

Other agent surfaces

Agent surfaces other than MCP and CLI
SurfaceResult
OpenAPI fileNo OpenAPI file at the root paths checked.
WebMCP in the initial HTMLNot checked: the home page was not read by the shared crawl.
MCP discovery fileNot checked: the domain is not in the shared crawl for this edition.
A2A agent cardNot checked: the domain is not in the shared crawl for this edition.
A2A agent card (older path)Not checked: the domain is not in the shared crawl for this edition.
agents.jsonNot checked: the domain is not in the shared crawl for this edition.
OAuth authorization server metadataNot checked: the domain is not in the shared crawl for this edition.
NLWeb endpointNot checked in this edition.

Registry listings

Registry listings
RegistryListed
Official MCP RegistryYes: com.zip-codes/api
GitHub MCP RegistryYes
awesome-remote-mcp-serversNo
SmitheryNot checked: Smithery's listing pages and search API were unavailable on 4 November 2026.
GlamaNot checked: Glama's API needs a key and attribution terms.