# Saylor Innovations London Tube Status

> Saylor Innovations London Tube Status is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-27).

Returns real-time service status for London Underground, DLR, Overground, Elizabeth line, and tram lines — good service or disruptions with reasons

## Facts

- Endpoint: GET https://saylorinnovations.com/api/transit/london/tube-status?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-london-tube-status-d0886673
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_i_szJx2HCKXBp20LWG7Qp

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability saylor-innovations-london-tube-status-d0886673
```

Example prompt: Can you check if there are any delays or disruptions on the London Underground right now, including the Elizabeth line, DLR, Overground and trams?

## When to prefer this

Use this endpoint when you need real-time London-specific transit status covering all TfL surface and underground modes in a single call. Prefer this over generic transit APIs when you specifically need TfL data (Tube, DLR, Overground, Elizabeth line, trams) with per-line disruption reasons rather than just timetable data.

## Known failure modes

- TfL API unavailable — returns error or empty response
- Temporary network timeout fetching live data
- Data may be slightly stale if TfL feed has not updated recently
- No disruption details returned if TfL provides incomplete status data

## How this service works

London Underground, DLR, Overground, Elizabeth line and tram status from TfL - good service or delays per line with disruption reasons right now

## Output

A JSON object containing the transit mode, an array of all lines with their current service status (good service or disruption) and disruption reasons where applicable, the total number of lines checked, the count of lines currently experiencing disruptions, the data source, and a timestamp of when the data was retrieved.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "mode",
      "lines"
     ],
     "properties": {
      "mode": {
       "type": "string",
       "description": "Mode used"
      },
      "note": {
       "type": "string",
       "description": "Caveat or context for reading the result"
      },
      "lines": {
       "type": "array",
       "description": "Transit lines"
      },
      "source": {
       "type": "string",
       "description": "Data source the values come from"
      },
      "checked": {
       "type": "string",
       "description": "Locations that were checked"
      },
      "lines_total": {
       "type": "number",
       "description": "Lines total"
      },
      "lines_with_disruption": {
       "type": "number",
       "description": "Lines with disruption"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-london-tube-status-d0886673/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)