Snapshots

{
  "composite": null,
  "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.",
  "domains": [
    "agents",
    "autonomy",
    "benchmarks",
    "biomed",
    "capital",
    "compute",
    "crypto",
    "ecosystem",
    "energy",
    "industrial",
    "inference",
    "macro",
    "markets",
    "narrative",
    "patents",
    "prediction",
    "pricing",
    "research",
    "robotics",
    "science"
  ],
  "emitted_at": "2026-09-16T11:54:41+00:00",
  "n_sources": 129,
  "n_sources_ok": 126,
  "run_at": "2026-07-12T14:00:05.754191+00:00",
  "schema_version": "0.2",
  "snapshot_id": "2026-07-12",
  "sources": [
    {
      "access": "free_api",
      "cadence": "weekly survey, accumulating",
      "confidence": "verified",
      "delta_pct_vs_previous": 16.6557,
      "domain": "agents",
      "first_date": "2026-04-21",
      "id": "agents.x402_services_count",
      "latest": 1779,
      "latest_date": "2026-07-12",
      "metric": "x402 pay-per-request services (agentic.market)",
      "n_points": 8,
      "previous": 1525,
      "previous_date": "2026-07-05",
      "signal_quality": "strong",
      "unit": "count",
      "url": "https://agentic.market"
    },
    {
      "access": "dataset_download",
      "cadence": "updated as METR re-fits new models",
      "confidence": "verified",
      "delta_pct_vs_previous": 106.9667,
      "domain": "autonomy",
      "first_date": "2019-02-14",
      "id": "autonomy.metr_time_horizon_50",
      "latest": 112.230447,
      "latest_date": "2025-04-16",
      "metric": "METR frontier task-completion horizon @50% (minutes)",
      "n_points": 15,
      "previous": 54.226342,
      "previous_date": "2025-02-24",
      "signal_quality": "strong",
      "unit": "minutes",
      "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/)"
    }
  ],
  "stub": false
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://x402-accelerometer-feed.fly.dev/snapshots/:id'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://x402-accelerometer-feed.fly.dev/snapshots/:id' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402-accelerometer-feed.fly.dev%2Fsnapshots%2F%3Aid
const res = await pay("https://x402-accelerometer-feed.fly.dev/snapshots/:id");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://x402-accelerometer-feed.fly.dev/snapshots/:id")
    print(res.status_code, res.text)