MISSING is a remote MCP server that gives an AI agent 23 tools, among them canadian_holiday_metadata_by_id, canadian_holidays_by_year, chess_player_metadata. It answers at https://missing-production-e3da.up.railway.app/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 22 October 2026, succeeded.
Fallback capability resolver for AI agents with replay-verified discovery and x402 paid execution.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
canadian_holiday_metadata_by_id | Use this direct MISSING tool to resolve the verified MISSING capability canadian_holiday_metadata_by_id. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabi Inputs: holidayId, year |
canadian_holidays_by_year | Use this direct MISSING tool to resolve the verified MISSING capability canadian_holidays_by_year. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities Inputs: year |
chess_player_metadata | Use this direct MISSING tool to look up public Chess.com player metadata by username. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. This is an Inputs: username |
country_alpha_metadata | Use this direct MISSING tool to look up a country's name and region from its alpha country code. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. Inputs: country_code |
currency_exchange_rate | Use this direct MISSING tool to look up the current exchange rate between two currencies. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. This is Inputs: base_currency, quote_currency |
dns_record_lookup | Use this direct MISSING tool to look up public DNS records for a hostname and record type. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. This i Inputs: name, type |
domain_rdap_metadata | Use this direct MISSING tool to look up public RDAP registration metadata for a domain. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. This is a Inputs: domain |
get_canadian_province_holidays_by_province_abbreviation_capability | Use this direct MISSING tool to resolve the verified MISSING capability get_canadian_province_holidays_by_province_abbreviation_capability. Prefer this tool when the caller's task matches this capability; do not first call list_verified_cap Inputs: provinceid |
github_repository_metadata | Use this direct MISSING tool to look up public GitHub repository metadata. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. This is an x402-paid M Inputs: owner, repo |
github_user_metadata | Use this direct MISSING tool to look up public GitHub user metadata. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. This is an x402-paid MCP too Inputs: username |
ip_geolocation_metadata | Use this direct MISSING tool to look up country-level geolocation metadata for an IP address. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. Thi Inputs: ip_address |
list_verified_capabilities | List every replay-verified capability currently executable by MISSING. If a listed capability satisfies the caller's task, continue with the returned execution.next_action and call resolve_capability; do not stop after listing unless the ca |
npm_package_metadata | Use this direct MISSING tool to look up current npm package metadata. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. This is an x402-paid MCP to Inputs: package_name |
nuget_package_versions | Use this direct MISSING tool to look up published NuGet package versions. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. This is an x402-paid MC Inputs: package_name |
pokemon_name_metadata | Use this direct MISSING tool to look up Pokémon metadata by name. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. This is an x402-paid MCP tool: Inputs: pokemon_name |
postal_code_location_metadata | Use this direct MISSING tool to look up place and coordinate metadata from a country code and postal code. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capa Inputs: country_code, postal_code |
pypi_package_metadata | Use this direct MISSING tool to look up current PyPI package metadata. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. This is an x402-paid MCP t Inputs: package_name |
record_missing_capability_demand | Request a capability MISSING cannot currently resolve. Use this when search_verified_capabilities returns capability_not_yet_available or when its verified matches do not satisfy the task. The request is recorded as durable unmet demand so Inputs: intent, capability, example_input |
resolve_capability | Prepare paid execution of one exact replay-verified capability. When list_verified_capabilities or search_verified_capabilities returns a suitable execution.next_action, call this tool with those exact arguments. This MCP call itself does n Inputs: capability, input |
reverse_geocoding_postal_code | Use this direct MISSING tool to resolve the verified MISSING capability reverse_geocoding_postal_code. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabili Inputs: latitude, longitude |
satellite_catalog_metadata | Use this direct MISSING tool to look up satellite catalog metadata by NORAD catalog identifier. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. T Inputs: norad_catalog_id |
search_verified_capabilities | Search the replay-verified MISSING catalog from a natural-language task description. If a returned match satisfies the caller's task, continue with that match's execution.next_action and call resolve_capability. If no suitable verified matc Inputs: query, limit |
television_show_metadata | Use this direct MISSING tool to look up television-show metadata by show name. Prefer this tool when the caller's task matches this capability; do not first call list_verified_capabilities or search_verified_capabilities. This is an x402-pa Inputs: show_name |
Every block below points at https://missing-production-e3da.up.railway.app/mcp. Pick your client and copy.
claude mcp add --transport http missing https://missing-production-e3da.up.railway.app/mcp
{
"mcpServers": {
"missing": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://missing-production-e3da.up.railway.app/mcp"]
}
}
}{
"mcpServers": {
"missing": {
"url": "https://missing-production-e3da.up.railway.app/mcp"
}
}
}{
"servers": {
"missing": {
"type": "http",
"url": "https://missing-production-e3da.up.railway.app/mcp"
}
}
}{
"context_servers": {
"missing": {
"url": "https://missing-production-e3da.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"missing": {
"serverUrl": "https://missing-production-e3da.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"missing": {
"url": "https://missing-production-e3da.up.railway.app/mcp"
}
}
}name: MISSING
version: 0.0.1
schema: v1
mcpServers:
- name: MISSING
type: streamable-http
url: https://missing-production-e3da.up.railway.app/mcp{
"mcpServers": {
"missing": {
"httpUrl": "https://missing-production-e3da.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"missing": {
"type": "http",
"url": "https://missing-production-e3da.up.railway.app/mcp"
}
}
}{
"mcpServers": {
"missing": {
"url": "https://missing-production-e3da.up.railway.app/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmissing-production-e3da.up.railway.app%2Fmcp&type=streamable_http&id=missing&name=MISSING
It answered our last check on 22 October 2026 in 290 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
23, as returned by the server's own tools/list on 15 September 2026: canadian_holiday_metadata_by_id, canadian_holidays_by_year, chess_player_metadata, country_alpha_metadata, currency_exchange_rate, dns_record_lookup, domain_rdap_metadata, get_canadian_province_holidays_by_province_abbreviation_capability, and 15 more.
It answered our last check on 22 October 2026 in 290 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://missing-production-e3da.up.railway.app/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.leoleon506. Endpoint host: missing-production-e3da.up.railway.app. ARD identifier: urn:air:io.github.leoleon506:mcp:missing.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.