Beauty & Personal Care · x402 · early usage

[SIGNAL+PROOF] One official signal record for any signal_id and entity: current reading…

by api.truthbear.co · discovered, not yet claimed by its owner · updated 2026-09-19

30d calls1

30d payers1

MethodGET

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

[SIGNAL+PROOF] One official signal record for any signal_id and entity: current reading against the OFFICIAL threshold ladder (band, distance-to-action) plus a 5-year same-season percentile so you can tell routine from unusual. 180+ signals across macro, weather, hazard, shipping, filings, crypto and lifecycle lines. Free coverage check first at /gauge/coverage. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed. $0.01 per call.

Tags: gauge · no-data-no-charge · official-source · descriptive-only · bazaar

Call contract

Method: GET
Input: query parameters
Output: json
Last paid call: 2026-09-19

Input example from Bazaar metadata

{
  "entity": "required - monitored object id, PAIRED WITH signal_id (e.g. 07010000 for hydrology.river-level, japan for earthquake.cur",
  "signal_id": "required - signal id in genus.species ASCII form (e.g. hydrology.river-level, crypto.spot, macro.unemployment, earthquak"
}

Output example

{
  "current": {
    "gauge_height_ft": 30.69
  },
  "entity": "03255000",
  "entity_name": "Ohio River at Cincinnati, OH",
  "grade": "screening-level, not decision-grade",
  "nature": "This API supplies data organisation and trend description only. It is not a recommendation to act; the decision is yours. Purely descriptive - no judgement, no prediction.Official source plus record_hash; verify with the free /gauge/verify.",
  "observed_at": "2026-08-25T04:00:00.000Z",
  "provenance": {
    "age_hours_now": 23,
    "freshness": "fresh",
    "freshness_basis": "cadence=daily; fresh<=24h; recent<=192h; dead_source>1440h; age_basis=request-time(now minus observed_at)"
  },
  "record_hash": "sha256:5969b8a147f438254edadf246ed1d7801a77c29babb5d725e17870320d620dd7",
  "record_hash_verifiable": {
    "mode": "via-endpoint",
    "note": "This response is a projected delivery (some core fields are omitted to control size). Cross-check record_hash with the free /gauge/verify, or buy /gauge to get the complete core for offline recomputation."
  },
  "scope": {
    "full": "https://api.truthbear.co/scope/v1",
    "intelligence_not_command": true,
    "monitoring_not_forecast": true,
    "verifiability": "via-endpoint"
  },
  "signal_id": "hydrology.river-level",
  "source_ref": "https://waterdata.usgs.gov/monitoring-location/03255000/",
  "summary_en": "Ohio River at Cincinnati, OH: 30.69 ft gauge height - no flooding, 9.31 ft below the first official alert (action stage 40 ft). seasonal percentile 0.922 (rare). falling vs 24h ago."
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/39969.json for the price and payment options.
Pay. Call GET https://api.truthbear.co/gauge. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, Solana, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.01 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base, Solana
Demand: 1 calls · 1 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.01	0x2d16a243ba9facc6ac85519d5efad2149dc4c6c3	300s
exact	Solana solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp	USDC	$0.01	8qEn3Y3GPXdQ28LHshPa4UYeD8V38Lq9b4jCRirQAY3n	300s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x2d16a243ba9facc6ac85519d5efad2149dc4c6c3",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "amountUsd": 0.01,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "8qEn3Y3GPXdQ28LHshPa4UYeD8V38Lq9b4jCRirQAY3n",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "amountUsd": 0.01,
    "maxTimeoutSeconds": 300
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {},
    "type": {
      "const": "json"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": null,
  "type": null
}

Examples

curl

curl -X GET 'https://api.truthbear.co/gauge'
# -> 402 Payment Required; read PAYMENT-REQUIRED
# retry the identical request with PAYMENT-SIGNATURE

JavaScript

const res = await fetch("https://api.truthbear.co/gauge", {
  "method": "GET"
});
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.request("GET", "https://api.truthbear.co/gauge")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: api.truthbear.co
Endpoint: https://api.truthbear.co/gauge
Machine-readable: /resources/39969.json