MISSING
REMOTE · MISSING-PRODUCTION-E3DA.UP.RAILWAY.APP
Fallback capability resolver for AI agents with replay-verified discovery and x402 paid execution.
Available components
Last scanned (15 minutes ago)
Scores higher than 8% of remote servers
Unreachable for 1 day in a row. Last reached 4 Nov 2026.
Category Search and Retrieval
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security11
- TLS not yet verified: we couldn't open a connection to check the certificate. View diagnostics → Unverified
- Authorisation not yet verified: we couldn't confirm whether this endpoint requires it. View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS not yet verified: we couldn't read the response headers to check for it. View diagnostics → Unverified
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability0
- Transport check failed: declared streamable-http, but we couldn't connect to verify it. See how to fix → View diagnostics → Fail
Schema Quality & AI Usability0
- Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.Unverified
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage0
- Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Tool Safety0
- Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Capabilities0
- Capabilities not yet verified: we couldn't read the endpoint's capabilities.Unverified
Unverified: 5 categories
Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 0
- Endpoint reachability: not serving MCP → unreachable ▼ security
- HSTS header: fail → unverified ▼ security
- TLS certificate: pass → unverified ▼ security
- Transport: Transport check failed: declared streamable-http, but we couldn't connect to verify it. security
- 1 Oct 26 0
- Endpoint reachability: reachable → not serving MCP ▼ security
- Authorization: partial → unverified ▼ security
- Stability: 0.70 → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Transport: pass → fail ▼ security
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- First check of Schema quality: unverified functional
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 15 Sept 26 0
- Tool “list_verified_capabilities” rewrote its description, which is the text the model reads security
- Tool “record_missing_capability_demand” rewrote its description, which is the text the model reads security
- Tool “resolve_capability” rewrote its description, which is the text the model reads security
- Tool “search_verified_capabilities” rewrote its description, which is the text the model reads security
- Schema quality: 615 → 3707 ▼ functional
- New tool “reverse_geocoding_postal_code” functional
- New tool “canadian_holiday_metadata_by_id” functional
- New tool “canadian_holidays_by_year” functional
- New tool “chess_player_metadata” functional
- New tool “country_alpha_metadata” functional
- New tool “currency_exchange_rate” functional
- New tool “dns_record_lookup” functional
- New tool “domain_rdap_metadata” functional
- New tool “get_canadian_province_holidays_by_province_abbreviation_capability” functional
- New tool “github_repository_metadata” functional
- New tool “github_user_metadata” functional
- New tool “ip_geolocation_metadata” functional
- New tool “npm_package_metadata” functional
- New tool “nuget_package_versions” functional
- New tool “pokemon_name_metadata” functional
- New tool “postal_code_location_metadata” functional
- New tool “pypi_package_metadata” functional
- New tool “satellite_catalog_metadata” functional
- New tool “television_show_metadata” functional
- “resolve_capability” reworded the description of “input” cosmetic
- “search_verified_capabilities” reworded the description of “limit” cosmetic
- “search_verified_capabilities” reworded the description of “query” cosmetic
- Tool “record_missing_capability_demand” changed its title: Record Missing Capability Demand → Request a New Capability cosmetic
- Tool “search_verified_capabilities” changed its title: Search Verified Capabilities → Search or Request a Capability cosmetic
- 10 Sept 26 0
- Tool “list_verified_capabilities” rewrote its description, which is the text the model reads security
- Tool “record_missing_capability_demand” rewrote its description, which is the text the model reads security
- Tool “resolve_capability” rewrote its description, which is the text the model reads security
- Tool “search_verified_capabilities” rewrote its description, which is the text the model reads security
- Schema quality: pass → fail ▼ functional
- Tool coverage: 0% → 100% ▲ functional
- Stability: unverified → 0.03 ▲ functional
- Schema quality: good → excellent functional
- “record_missing_capability_demand” reworded the description of “capability” cosmetic
- “record_missing_capability_demand” reworded the description of “example_input” cosmetic
- “record_missing_capability_demand” reworded the description of “intent” cosmetic
- “resolve_capability” reworded the description of “capability” cosmetic
- “resolve_capability” reworded the description of “input” cosmetic
- “search_verified_capabilities” reworded the description of “limit” cosmetic
- “search_verified_capabilities” reworded the description of “query” cosmetic
- Tool “list_verified_capabilities” changed its title: List Verified Capabilities cosmetic
- Tool “record_missing_capability_demand” changed its title: Record Missing Capability Demand cosmetic
- Tool “resolve_capability” changed its title: Resolve Verified Capability cosmetic
- Tool “search_verified_capabilities” changed its title: Search Verified Capabilities cosmetic
- 9 Sept 26 0
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://missing-production-e3da.up.railway.app/mcp
TLS unreached
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of missing-production-e3da.up.railway.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| railway.app. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Inconclusive
We could not reach the endpoint well enough to judge its authorisation posture.
| Result | Inconclusive |
|---|
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://missing-production-e3da.up.railway.app/mcp | Unreachable | ||
| http (plaintext) | http://missing-production-e3da.up.railway.app/mcp | HTTPS enforced |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
canadian_holiday_metadata_by_id Canadian Holiday Metadata By Id ~172
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_capabilities. This is an x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| holidayId | number | yes | Required input field 'holidayId'. Example: 1. |
| year | number | yes | Required input field 'year'. Example: 2026. |
No output schema declared.
No examples provided.
canadian_holidays_by_year Canadian Holidays By Year ~151
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. This is an x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| year | number | yes | Required input field 'year'. Example: 2026. |
No output schema declared.
No examples provided.
chess_player_metadata Chess Player Metadata ~147
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 x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| username | string | yes | Required input field 'username'. Example: "hikaru". |
No output schema declared.
No examples provided.
country_alpha_metadata Country Alpha Metadata ~151
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. This is an x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| country_code | string | yes | Required input field 'country_code'. Example: "JP". |
No output schema declared.
No examples provided.
currency_exchange_rate Currency Exchange Rate ~167
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 an x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| base_currency | string | yes | Required input field 'base_currency'. Example: "usd". |
| quote_currency | string | yes | Required input field 'quote_currency'. Example: "eur". |
No output schema declared.
No examples provided.
dns_record_lookup Dns Record Lookup ~166
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 is an x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Required input field 'name'. Example: "example.com". |
| type | string | yes | Required input field 'type'. Example: "A". |
No output schema declared.
No examples provided.
domain_rdap_metadata Domain Rdap Metadata ~149
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 an x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | yes | Required input field 'domain'. Example: "example.com". |
No output schema declared.
No examples provided.
get_canadian_province_holidays_by_province_abbreviation_capability Get Canadian Province Holidays By Province Abbreviation Capability ~170
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_capabilities or search_verified_capabilities. This is an x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| provinceid | string | yes | Required input field 'provinceid'. Example: "MB". |
No output schema declared.
No examples provided.
github_repository_metadata Github Repository Metadata ~164
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 MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| owner | string | yes | Required input field 'owner'. Example: "openai". |
| repo | string | yes | Required input field 'repo'. Example: "openai-python". |
No output schema declared.
No examples provided.
github_user_metadata Github User Metadata ~146
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 tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| username | string | yes | Required input field 'username'. Example: "torvalds". |
No output schema declared.
No examples provided.
ip_geolocation_metadata Ip Geolocation Metadata ~157
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. This is an x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| ip_address | string | yes | Required input field 'ip_address'. Example: "1.1.1.1". |
No output schema declared.
No examples provided.
list_verified_capabilities List Verified Capabilities ~119
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 caller only asked to inspect the catalog. If no listed capability is suitable, use search_verified_capabilities with the caller's natural-language need; that search can direct you to request a new capability. resolve_capability is still a non-charging quote/handoff step. This tool is read-only and has no payment or provider side effect.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
npm_package_metadata Npm Package Metadata ~145
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 tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| package_name | string | yes | Required input field 'package_name'. Example: "express". |
No output schema declared.
No examples provided.
nuget_package_versions Nuget Package Versions ~150
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 MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| package_name | string | yes | Required input field 'package_name'. Example: "newtonsoft.json". |
No output schema declared.
No examples provided.
pokemon_name_metadata Pokemon Name Metadata ~147
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: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| pokemon_name | string | yes | Required input field 'pokemon_name'. Example: "bulbasaur". |
No output schema declared.
No examples provided.
postal_code_location_metadata Postal Code Location Metadata ~173
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_capabilities. This is an x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| country_code | string | yes | Required input field 'country_code'. Example: "us". |
| postal_code | string | yes | Required input field 'postal_code'. Example: "90210". |
No output schema declared.
No examples provided.
pypi_package_metadata Pypi Package Metadata ~148
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 tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| package_name | string | yes | Required input field 'package_name'. Example: "requests". |
No output schema declared.
No examples provided.
record_missing_capability_demand Request a New Capability ~226
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 trusted acquisition can prioritize provider discovery, replay verification, and promotion of new executable supply. Promotion occurs only after verification gates pass, so this does not promise immediate creation or availability. The mutation is additive and non-destructive; repeated calls may increase the observed demand signal. Never include secrets, credentials, personal data, payment material, or private keys.
| Name | Type | Req | Description |
|---|---|---|---|
| capability | string | – | Optional proposed capability identifier if you already know an appropriate stable name. Prefer lowercase snake_case; omit this field when uncertain. |
| example_input | object | – | Optional non-sensitive representative input fields that may help trusted acquisition verify future supply. Use scalar values only; never include secrets, credentials, personal data, payment signature… |
| intent | string | yes | Natural-language description of the unresolved task or desired outcome. Keep it specific enough to evaluate future providers and exclude sensitive data. |
No output schema declared.
No examples provided.
resolve_capability Resolve Verified Capability ~189
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 not execute a provider or charge the caller; it returns payment_required with the canonical /v1/agent/resolve endpoint, current price, exact request body, and x402 instructions. The later HTTP x402 flow performs execution and settlement: preserve the exact request body and exact PAYMENT-SIGNATURE for recovery, and do not create a second authorization for a payment already associated with a known transaction.
| Name | Type | Req | Description |
|---|---|---|---|
| capability | string | yes | Exact verified capability identifier returned by list_verified_capabilities or search_verified_capabilities. |
| input | object | yes | JSON input object for that capability. Prefer the exact execution.next_action.arguments.input returned by discovery, and reuse this exact object in the subsequent x402 HTTP request. |
No output schema declared.
No examples provided.
reverse_geocoding_postal_code Reverse Geocoding Postal Code ~181
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_capabilities. This is an x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| latitude | number | yes | Required input field 'latitude'. Example: 52.51467945. |
| longitude | number | yes | Required input field 'longitude'. Example: 13.239514674078611. |
No output schema declared.
No examples provided.
satellite_catalog_metadata Satellite Catalog Metadata ~154
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. This is an x402-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| norad_catalog_id | number | yes | Required input field 'norad_catalog_id'. Example: 20580. |
No output schema declared.
No examples provided.
search_verified_capabilities Search or Request a Capability ~186
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 match exists, this tool returns an explicit next_action for record_missing_capability_demand so MISSING can use the unmet need to discover, replay-verify, and potentially promote new executable supply. Recording demand does not guarantee immediate creation or availability. This search itself is read-only and does not call providers, create demand, or trigger payment.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Maximum verified matches to return. Optional; defaults to 5. Valid range is 1 through 20. |
| query | string | yes | Natural-language description of the external capability or task you need, for example 'reverse geocode coordinates to postal code'. Describe the outcome, not an implementation. |
No output schema declared.
No examples provided.
television_show_metadata Television Show Metadata ~149
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-paid MCP tool: an unpaid call returns a standard MCP PaymentRequired result, an x402-capable client can retry the same tool call with _meta["x402/payment"], and MISSING then verifies, executes, and settles through its canonical Kappa financial engine. If current economics or the payment rail are unavailable, execution fails closed rather than running for free.
| Name | Type | Req | Description |
|---|---|---|---|
| show_name | string | yes | Required input field 'show_name'. Example: "Severance". |
No output schema declared.
No examples provided.
How do I install the MISSING MCP server?
MISSING is a hosted endpoint at https://missing-production-e3da.up.railway.app/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · missing-production-e3da.up.railway.app
claude mcp add --transport http leoleon506-missing 'https://missing-production-e3da.up.railway.app/mcp'
What is the MISSING MCP server?
MISSING is an MCP server listed in the public MCP registry as io.github.leoleon506/missing. Fallback capability resolver for AI agents with replay-verified discovery and x402 paid execution. This page covers its hosted endpoint (https://missing-production-e3da.up.railway.app/mcp).
Is the MISSING MCP server safe to use?
MISSING scores 23 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the MISSING MCP server expose?
MISSING exposes 23 tools: canadian_holiday_metadata_by_id, canadian_holidays_by_year, chess_player_metadata, country_alpha_metadata, currency_exchange_rate, and 18 more. Their descriptions and schemas cost roughly 3,707 tokens of context every time the server is loaded.
Does the MISSING MCP server require authentication?
Its publisher declares no required credentials for MISSING. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.
Is the MISSING MCP server still maintained?
MISSING is still listed in the MCP registry, though our most recent checks did not reach this channel. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.