# CMS Timely & Effective Care ED Throughput Delta

> CMS Timely & Effective Care ED Throughput Delta is a paid API for AI agents from api.govparse.io, paid per call via x402, $1.25/call, status unknown (last checked 2026-09-15).

Computes period-over-period change in hospital emergency department throughput metrics from CMS Timely & Effective Care snapshots, identifying which hospitals are getting better or worse.

## Facts

- Endpoint: GET https://api.govparse.io/v1/cms/timely-care/delta
- Price: $1.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cms-timely-effective-care-ed-throughput-delta-f0c9d8dd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QLtXgoHJ89xaEoNc-wJGB

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 cms-timely-effective-care-ed-throughput-delta-f0c9d8dd
```

Example prompt: Which Illinois hospitals have seen their CMS OP_18b emergency department median time get worse by at least 10% period-over-period, with a minimum sample of 100 patients? Show me the top 25 ranked by biggest degradation.

## When to prefer this

Use this endpoint when you need to detect period-over-period trends in hospital ED performance rather than a static snapshot. It is ideal for identifying healthcare facilities under increasing operational pressure, building investment signals around hospital staffing demand, or monitoring quality degradation across a regional or national hospital network. Prefer this over a raw CMS search endpoint when the rate of change — not the absolute score — is what matters.

## Known failure modes

- Invalid measure ID returns no results or 400 error
- Facility ID not found in CMS dataset returns empty results
- min_pct_change or min_delta values that are too high return zero matches
- State code typo returns empty result set
- Requesting more than 100 rows (cap) returns error
- Insufficient data across periods for a facility means it is excluded from delta calculation

## How this service works

Which hospitals' emergency-department throughput is degrading period-over-period? Windows the CMS Timely & Effective Care snapshots to compute each hospital's latest-vs-prior change on a measure (default OP_18b median ED time; higher = worse). Filter by measure, state, facility_id, direction (worse | better | any), min_pct_change, min_delta, and min_sample. Returns latest_score, prior_score, delta, and pct_change — the founder's ED-staffing-pressure tell. CMS Care Compare public-domain records.

## Output

Returns a paginated list of hospitals with their latest CMS measure score, prior period score, absolute delta, and percent change — sorted by the chosen direction and filtered by the specified state, facility, measure, and threshold criteria.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "required": [],
   "properties": {
    "limit": {
     "type": "integer",
     "examples": [
      25
     ],
     "description": "Max rows (default 25, cap 100)."
    },
    "state": {
     "type": "string",
     "examples": [
      "IL"
     ],
     "description": "Hospital state code(s), CSV."
    },
    "offset": {
     "type": "integer",
     "examples": [
      0
     ],
     "description": "Rows to skip."
    },
    "measure": {
     "type": "string",
     "examples": [
      "OP_18b"
     ],
     "description": "Measure id to compare across periods (default OP_18b)."
    },
    "direction": {
     "type": "string",
     "examples": [
      "worse"
     ],
     "description": "worse (default) | better | any."
    },
    "min_delta": {
     "type": "string",
     "examples": [
      "30"
     ],
     "description": "Minimum absolute change in the chosen direction."
    },
    "min_sample": {
     "type": "string",
     "examples": [
      "100"
     ],
     "description": "Minimum latest-period sample size."
    },
    "facility_id": {
     "type": "string",
     "examples": [
      "140117"
     ],
     "description": "CMS CCN(s), CSV."
    },
    "min_pct_change": {
     "type": "string",
     "examples": [
      "10"
     ],
     "description": "Minimum period-over-period % change in the chosen direction."
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cms-timely-effective-care-ed-throughput-delta-f0c9d8dd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.govparse.io](https://www.zero.xyz/host/api.govparse.io/llms.txt)