# Accelerometer — AI Progress Latest Snapshot

> Accelerometer — AI Progress Latest Snapshot is a paid API for AI agents from x402-accelerometer-feed.fly.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-18).

Returns the latest readings of 129 public AI-progress and technology time series in a single JSON payload, covering benchmarks, compute, prediction markets, pricing, stocks, and more.

## Facts

- Endpoint: GET https://x402-accelerometer-feed.fly.dev/ai-progress/latest
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/accelerometer-ai-progress-latest-snapshot-059edef3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UG3XOu9TPSbt3DvPoevSQ

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 accelerometer-ai-progress-latest-snapshot-059edef3
```

Example prompt: Pull the latest Accelerometer snapshot so I can see where all 129 AI-progress series stand right now — benchmark scores, compute trends, AGI prediction market odds, model pricing, the whole dashboard.

## When to prefer this

Choose this endpoint when you need a broad, multi-domain snapshot of AI progress in a single call rather than querying individual data sources separately. It is ideal for dashboards, briefings, investment research, or automated monitoring workflows that need heterogeneous AI metrics (benchmarks, compute, markets, pricing) normalized into a consistent per-series format. Prefer historical sibling endpoints if you need a past date's snapshot rather than the latest.

## Known failure modes

- Payment not attached or insufficient — returns HTTP 402 requiring x402 USDC payment
- Service temporarily unavailable on fly.dev infrastructure — returns 5xx error
- Some upstream data sources may be stale or unavailable, reflected in n_sources_ok being less than n_sources
- Malformed request may return 4xx if unexpected query parameters are sent

## How this service works

Use this when you need the current state of AI progress in one call: the latest reading of 129 public series (frontier benchmark scores GPQA/HLE/ARC-AGI/METR, Epoch compute trends, AGI odds on Polymarket/Manifold/Kalshi, model pricing, AI stocks and crypto, energy, space, robotics, biomed, research output). One JSON row per series: latest and previous value with dates, % change, signal quality, source URL. Free 3-row sample at /preview.

## Output

A JSON object containing a snapshot_id, run timestamp, and an array of up to 129 source rows. Each row includes: a series ID, domain, metric name, unit, latest value with date, previous value with date, percent change vs previous, number of historical points, signal quality rating, confidence level, data access type, and source URL. Also includes a list of all covered domains and metadata like schema version and counts of OK sources.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "stub": false,
  "run_at": "2026-09-16T12:25:28.530204+00:00",
  "domains": [
   "agents",
   "autonomy",
   "benchmarks",
   "biomed",
   "capital",
   "compute",
   "crypto",
   "ecosystem",
   "energy",
   "industrial",
   "inference",
   "macro",
   "markets",
   "narrative",
   "patents",
   "prediction",
   "pricing",
   "research",
   "robotics",
   "science",
   "space"
  ],
  "sources": [
   {
    "id": "agents.x402_services_count",
    "url": "https://agentic.market",
    "unit": "count",
    "access": "free_api",
    "domain": "agents",
    "latest": 2865,
    "metric": "x402 pay-per-request services (agentic.market)",
    "cadence": "weekly survey, accumulating",
    "n_points": 9,
    "previous": 1779,
    "confidence": "verified",
    "first_date": "2026-04-21",
    "latest_date": "2026-09-16",
    "previous_date": "2026-07-12",
    "signal_quality": "strong",
    "delta_pct_vs_previous": 61.0455
   },
   {
    "id": "autonomy.metr_time_horizon_50",
    "url": "https://github.com/METR/cross-domain-horizon (data/external/logistic_fits/headline.csv; METR 'Measuring AI Ability to Complete Long Tasks', metr.org/blog/2025-03-19-measuring-ai-ability-to-complete-long-tasks/)",
    "unit": "minutes",
    "access": "dataset_download",
    "domain": "autonomy",
    "latest": 112.230447,
    "metric": "METR frontier task-completion horizon @50% (minutes)",
    "cadence": "updated as METR re-fits new models",
    "n_points": 15,
    "previous": 54.226342,
    "confidence": "verified",
    "first_date": "2019-02-14",
    "latest_date": "2025-04-16",
    "previous_date": "2025-02-24",
    "signal_quality": "strong",
    "delta_pct_vs_previous": 106.9667
   }
  ],
  "composite": null,
  "n_sources": 129,
  "emitted_at": "2026-09-16T12:28:08+00:00",
  "snapshot_id": "2026-09-16",
  "n_sources_ok": 124,
  "composite_note": "No cross-source composite is offered. Each row is one source's latest observation as pulled at run_at, with its previous observation and the % change between them.",
  "schema_version": "0.2"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/accelerometer-ai-progress-latest-snapshot-059edef3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-accelerometer-feed.fly.dev](https://www.zero.xyz/host/x402-accelerometer-feed.fly.dev/llms.txt)