Accelerometer
A specific dated snapshot (YYYY-MM-DD, ids listed free at /) of the 129-series AI-progress and technology pull: frontier benchmark scores, compute trends, AGI prediction-market odds, model pricing, AI stocks, energy, space, robotics, research output. Same per-source shape as /feed (latest, previous, % change, source URL). Use it to compare dates yourself, or call /delta to get the comparison computed. No composite score. Unknown id -> 404.
SearchLiveeip155:8453Exactvia cdp
Ai-progressAgiBenchmarksTime-seriesHistorical
Calls · 30d
5
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far.
$0.27
Verified settled volume
33 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
5
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-16 12:47Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xbC3A8eAc0601F717E803935cABEDeE8EDB7713C4The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"how": "Pick an id from GET / (free), then retry GET /ai-progress/as-of/<id> with an x402 `payment` header.",
"menu": "https://x402-accelerometer-feed.fly.dev/",
"error": "payment_required",
"price": "$0.005",
"health": "https://x402-accelerometer-feed.fly.dev/health",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbC3A8eAc0601F717E803935cABEDeE8EDB7713C4",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "5dBE1vqMVJCbxpBv9kw9nQJguUhYXk5mRGVfsxEF9cc4",
"amount": "5000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"preview": "https://x402-accelerometer-feed.fly.dev/preview",
"networks": [
"eip155:8453",
"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
],
"receipts": "https://x402-accelerometer-feed.fly.dev/receipt/{id}",
"resource": {
"url": "https://x402-accelerometer-feed.fly.dev/ai-progress/as-of/:id",
"mimeType": "application/json"
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.005USDC≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0xbC3A…713C4. The signed payment is good for 5 minutes.
- Paid to
- 0xbC3A…713C4
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbC3A8eAc0601F717E803935cABEDeE8EDB7713C4",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"id": ":id"
},
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"stub": false,
"run_at": "2026-07-12T14:00:05.754191+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": 1779,
"metric": "x402 pay-per-request services (agentic.market)",
"cadence": "weekly survey, accumulating",
"n_points": 8,
"previous": 1525,
"confidence": "verified",
"first_date": "2026-04-21",
"latest_date": "2026-07-12",
"previous_date": "2026-07-05",
"signal_quality": "strong",
"delta_pct_vs_previous": 16.6557
},
{
"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": "2026-09-16T11:54:41+00:00",
"snapshot_id": "2026-07-12",
"n_sources_ok": 126,
"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"
}
}
},
"schema": {
"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"
},
"pathParams": {
"type": "object",
"required": [
"id"
],
"properties": {
"id": {
"type": "string",
"description": "snapshot date YYYY-MM-DD, from GET /"
}
}
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"schema_version",
"snapshot_id",
"run_at",
"n_sources",
"sources"
],
"properties": {
"stub": {
"type": "boolean"
},
"run_at": {
"type": "string",
"description": "ISO timestamp the pull ran"
},
"domains": {
"type": "array",
"items": {
"type": "string"
}
},
"sources": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"metric",
"domain",
"unit",
"latest",
"latest_date"
],
"properties": {
"id": {
"type": "string",
"description": "registry key, e.g. epoch.training_flop_max"
},
"url": {
"type": [
"string",
"null"
]
},
"unit": {
"type": "string"
},
"access": {
"type": [
"string",
"null"
]
},
"domain": {
"type": "string"
},
"latest": {
"type": "number"
},
"metric": {
"type": "string"
},
"cadence": {
"type": [
"string",
"null"
]
},
"n_points": {
"type": "integer"
},
"previous": {
"type": [
"number",
"null"
]
},
"confidence": {
"type": "string"
},
"first_date": {
"type": "string"
},
"latest_date": {
"type": "string"
},
"previous_date": {
"type": [
"string",
"null"
]
},
"signal_quality": {
"type": "string",
"description": "strong | moderate | weak | noisy"
},
"delta_pct_vs_previous": {
"type": [
"number",
"null"
]
}
}
}
},
"composite": {
"type": "null",
"description": "no cross-source composite is offered"
},
"n_sources": {
"type": "integer"
},
"snapshot_id": {
"type": "string",
"description": "YYYY-MM-DD of the pull"
},
"schema_version": {
"type": "string"
}
}
}
}
}
}
},
"routeTemplate": "/snapshots/:id"
}
}Provenance
- Seen in the source catalog
- 2026-09-16 12:47Z
- Last indexed by Roundhouse
- 2026-09-24 10:10Z
- Last enriched (probe, favicon, geo)
- 2026-09-19 08:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Accelerometer and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Accelerometer' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://x402-accelerometer-feed.fly.dev/snapshots/:id, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.