Back to Truth Bear — Cross-Line Cascade & Leading Signals for AI Agents (GAUGE engine)
Card snapshot
aeml-x402.zeabur.app
·
2026-08-17 23:32:41 UTC
·
dc1dbe4c4086a070b03f83866af89a07404e6b52ad851d939117bae86ce466e3
This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.
{
"name": "Truth Bear \u2014 Cross-Line Cascade & Leading Signals for AI Agents (GAUGE engine)",
"description": "Pay-per-call signals for AI agents via x402 (USDC on Base, no API key). HEADLINE VALUE: (1) pre-joined CROSS-LINE CASCADE \u2014 one call surfaces downstream exposure across industries (e.g. a dead neocloud/policy/dataset exposing the tools, funds or projects that depend on it); (2) LEADING signals \u2014 the upstream factor that moves before the current state; (3) aggregation/screening convenience over scattered free official sources (USGS/NOAA/EPA/SEC/FDA/EIA/\u2026), pre-cleaned into one schema; (4) verifiable official-source provenance (timestamp + record_hash, plus optional OpenTimestamps) for those who need audit-grade citation. Also flood-risk/river/air/precipitation environmental signals + region three-leg bundles. Pure description, no judgment/prediction. Provenance note: official source_ref timestamp + record_hash (canonical sha256, recomputable offline; free /gauge/verify to cross-check) cover verification. Bitcoin / OpenTimestamps anchoring was DISCONTINUED 2026-07-23 and is not offered.",
"provider": {
"organization": "Truth Bear",
"url": "https://aeml-x402.zeabur.app"
},
"version": "2.0",
"documentationUrl": "https://aeml-x402.zeabur.app/llms.txt",
"supportedInterfaces": [
{
"url": "https://aeml-x402.zeabur.app/manifest",
"protocolBinding": "HTTP+x402",
"protocolVersion": "1.0"
}
],
"capabilities": {
"streaming": false,
"pushNotifications": false,
"extendedAgentCard": false,
"extensions": [
{
"uri": "https://aeml-x402.zeabur.app/ext/x402-only/v1",
"required": true,
"description": "This agent does NOT implement A2A message transport (no message/send). Skills are plain HTTP GET endpoints paid per call with x402 (USDC on Base or Solana, no API key, no account). Discover and call them at the url in supportedInterfaces. An A2A client that requires JSONRPC, GRPC or HTTP+JSON should treat this agent as having no compatible interface rather than attempting a message send."
}
]
},
"defaultInputModes": [
"application/json"
],
"defaultOutputModes": [
"application/json"
],
"skills": [
{
"id": "gauge_signal",
"name": "One official signal record for any signal_id and entity",
"description": "One official signal record for any signal_id and entity | GET /gauge | price $0.01 via x402",
"tags": [
"gauge",
"no-data-no-charge",
"official-source",
"descriptive-only"
],
"examples": [
"{\"signal_id\":\"genus.species (ASCII binomial). /gauge serves the WHOLE signal universe, not only hydrology - e.g. crypto.spot | macro.unemployment | shipping.route-disruption | earthquake.current_activ"
]
},
{
"id": "raw_reading_free",
"name": "Raw hydrology reading (free)",
"description": "Raw hydrology reading (free) | GET /gauge/raw | price free via x402",
"tags": [
"gauge",
"raw"
],
"examples": [
"{\"signal_id\":\"hydrology.*\",\"entity\":\"USGS site id\"}"
]
},
{
"id": "gauge_coverage",
"name": "Coverage + freshness manifest (free)",
"description": "Coverage + freshness manifest (free) | GET /gauge/coverage | price free via x402",
"tags": [
"gauge",
"coverage"
],
"examples": [
"{\"industry\":\"optional filter\",\"signal_id\":\"optional filter\",\"entity\":\"optional filter\",\"summary\":\"optional 1 for compact per-signal counts\"}"
]
},
{
"id": "region_bundle",
"name": "Local three-leg environment chain",
"description": "Local three-leg environment chain | GET /gauge/region | price $0.25 via x402",
"tags": [
"gauge",
"region",
"epa",
"cams",
"era5",
"usgs",
"cross-source",
"leading-indicator"
],
"examples": [
"{\"loc\":\"us-stlouis | us-memphis | us-chicago | \u2026\"}"
]
},
{
"id": "cross_station_scan",
"name": "All entities for one signal at their latest reading",
"description": "All entities for one signal at their latest reading | GET /gauge/census | price $0.09 via x402",
"tags": [
"gauge",
"census",
"no-data-no-charge",
"descriptive-only"
],
"examples": [
"{\"signal_id\":\"\u2026\"}"
]
},
{
"id": "gauge_history",
"name": "Full retained series for one signal and entity",
"description": "Full retained series for one signal and entity | GET /gauge/history-series | price $0.09 via x402",
"tags": [
"gauge",
"history",
"series",
"no-data-no-charge",
"record-hash",
"descriptive-only"
],
"examples": [
"{\"signal_id\":\"e.g. hydrology.river-level | stablecoin.lifecycle\",\"entity\":\"object id (see /gauge/coverage)\",\"days\":\"optional lookback, default 400, cap 1000\",\"format\":\"json (default) | csv\"}"
]
},
{
"id": "gauge_subscribe",
"name": "Pay once to mint a STATELESS signed token",
"description": "Pay once to mint a STATELESS signed token | GET /gauge/subscribe | price $9.90 via x402",
"tags": [
"gauge",
"subscribe"
],
"examples": [
"{}"
]
},
{
"id": "gauge_watch",
"name": "Batch watchlist read (subscription-gated, no per-call pay)",
"description": "Batch watchlist read (subscription-gated, no per-call pay) | GET /gauge/watch | price free (subscription token required) via x402",
"tags": [
"gauge",
"watch"
],
"examples": [
"{\"items\":\"comma-separated industry:entity pairs, e.g. drug-detail:carboplatin,border-wait:laredo-world-trade,drug-shortage:oncology (cap 30)\",\"token\":\"optional ?token= (or Authorization: Bearer <token"
]
},
{
"id": "gauge_watch_changes",
"name": "Watchlist delta / poll (subscription-gated, webhook-lite)",
"description": "Watchlist delta / poll (subscription-gated, webhook-lite) | GET /gauge/watch-changes | price free (subscription token required) via x402",
"tags": [
"gauge",
"watch",
"changes"
],
"examples": [
"{\"items\":\"comma-separated industry:entity pairs (cap 30)\",\"since\":\"ISO timestamp or unix seconds; default 24h ago\",\"token\":\"optional ?token= (or Authorization: Bearer <token>)\"}"
]
},
{
"id": "crop_drought_check",
"name": "Agriculture chain, one grain belt",
"description": "Agriculture chain, one grain belt | GET /gauge/agri-region | price $0.25 via x402",
"tags": [
"gauge",
"agri",
"region",
"usdm",
"ndmc",
"nasa-power",
"noaa-star",
"cross-source"
],
"examples": [
"{\"loc\":\"us-iowa | ar-pampas | br-matogrosso | ua-ukraine | ru-southrussia | cn-northchina | au-nsw | in-punjab | \u2026\"}"
]
},
{
"id": "grid_stress_check",
"name": "Power-grid chain, one grid region",
"description": "Power-grid chain, one grid region | GET /gauge/grid-region | price $0.25 via x402",
"tags": [
"gauge",
"grid",
"region",
"eia",
"bls",
"open-meteo",
"cross-source",
"leading-indicator"
],
"examples": [
"{\"loc\":\"us-ercot | us-caiso | us-pjm | us-miso | us-nyiso | eu-germany | eu-france | eu-uk | eu-spain | jp-japan | au-nem | in-india\"}"
]
},
{
"id": "route_disruption_check",
"name": "Shipping chokepoint chain, one chokepoint or port",
"description": "Shipping chokepoint chain, one chokepoint or port | GET /gauge/shipping-region | price $0.25 via x402",
"tags": [
"gauge",
"shipping",
"region",
"imf-portwatch",
"noaa",
"open-meteo-marine",
"cross-source",
"leading-indicator"
],
"examples": [
"{\"loc\":\"suez-redsea | panama-pacific | malacca | hormuz | goodhope | channel | biscay | northsea | gulfmexico | southchinasea | bengal | northpacific\"}"
]
},
{
"id": "filing_distress_check",
"name": "Regulatory filing chain, one issuer",
"description": "Regulatory filing chain, one issuer | GET /gauge/filing-company | price $0.25 via x402",
"tags": [
"gauge",
"filing",
"company",
"sec-edgar",
"cross-source",
"leading-indicator",
"causal-chain",
"no-data-no-charge"
],
"examples": [
"{\"entity\":\"AAPL | AMC | CVNA | GME | BA | F | TSLA | \u2026 (ticker)\"}"
]
},
{
"id": "climate_policy_check",
"name": "Climate policy chain, one policy",
"description": "Climate policy chain, one policy | GET /gauge/policy-region | price $0.25 via x402",
"tags": [
"gauge",
"policy",
"region",
"federal-register",
"unfccc",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"kyoto-protocol | eu-ets | us-inflation-reduction-act | au-carbon-pricing | \u2026 (policy id)\"}"
]
},
{
"id": "ai_tool_alive_check",
"name": "AI tool and MCP chain, one tool",
"description": "AI tool and MCP chain, one tool | GET /gauge/tool-region | price $0.25 via x402",
"tags": [
"gauge",
"tool",
"region",
"dns",
"github",
"package-registries",
"cross-source",
"leading-indicator"
],
"examples": [
"{\"entity\":\"mammoth-ai | jasper-ai | perplexity-ai | github-mcp-server | \u2026 (tool/MCP id)\"}"
]
},
{
"id": "ai_dependency_check",
"name": "AI dependency chain, one dependency",
"description": "AI dependency chain, one dependency | GET /gauge/dependency-region | price $0.25 via x402",
"tags": [
"gauge",
"dependency",
"region",
"vendor-notices",
"source-url-per-record",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"openai-text-davinci-003 | google-palm-text-bison | anthropic-claude-2 | openai-gpt-4o | \u2026 (model/API id)\"}"
]
},
{
"id": "ai_promise_check",
"name": "Promise-reconciliation chain",
"description": "Promise-reconciliation chain | GET /gauge/promise-region | price $0.25 via x402",
"tags": [
"gauge",
"promise",
"region",
"official-announcements",
"registries",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"humane-ai-pin | tesla-optimus | figure-ai | rabbit-r1 | nikola-trucks | cruise-robotaxi | \u2026 (company/product id)\"}"
]
},
{
"id": "carbon_integrity_check",
"name": "Carbon integrity chain, one carbon project",
"description": "Carbon integrity chain, one carbon project | GET /gauge/carbon-region | price $0.25 via x402",
"tags": [
"gauge",
"carbon",
"region",
"verra",
"gold-standard",
"registry-feeds",
"cross-source",
"leading-indicator"
],
"examples": [
"{\"entity\":\"kariba-redd | rimba-raya | southern-cardamom | cordillera-azul | katingan-mentaya | \u2026 (carbon project id)\"}"
]
},
{
"id": "stablecoin_depeg_check",
"name": "Stablecoin chain, one stablecoin",
"description": "Stablecoin chain, one stablecoin | GET /gauge/stablecoin-region | price $0.25 via x402",
"tags": [
"gauge",
"stablecoin",
"region",
"exchange",
"registry-feeds",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"terrausd-ust | iron-titan | neutrino-usdn | binance-usd-busd | usdd-tron | usdc-circle | \u2026 (stablecoin id)\"}"
]
},
{
"id": "aicompute_solvency_check",
"name": "AI compute neocloud chain, one provider",
"description": "AI compute neocloud chain, one provider | GET /gauge/aicompute-region | price $0.25 via x402",
"tags": [
"gauge",
"aicompute",
"region",
"filings",
"official-announcements",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"coreweave | lambda | crusoe | together-ai | runpod | genesis-cloud | paperspace | \u2026 (GPU-cloud provider id)\"}"
]
},
{
"id": "depin_liveness_check",
"name": "DePIN chain, one network, leading reward-claim attrition",
"description": "DePIN chain, one network, leading reward-claim attrition | GET /gauge/depin-region | price $0.25 via x402",
"tags": [
"gauge",
"depin",
"region",
"onchain",
"official-network-data",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"helium | render | io-net | akash | filecoin | hivemapper | mxc-dhx | pollen-mobile | \u2026 (DePIN network id)\"}"
]
},
{
"id": "esgfund_greenwash_check",
"name": "ESG fund greenwash chain, one fund",
"description": "ESG fund greenwash chain, one fund | GET /gauge/esgfund-region | price $0.25 via x402",
"tags": [
"gauge",
"esgfund",
"region",
"sfdr-filings",
"rating-registries",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"blackrock-art9-downgrade | amundi-art9-index-range | dws-esg-us-order | esma-name-guideline-cohort | \u2026 (fund id)\"}"
]
},
{
"id": "rwa_default_check",
"name": "Tokenised RWA chain, one issuer or pool",
"description": "Tokenised RWA chain, one issuer or pool | GET /gauge/rwa-region | price $0.25 via x402",
"tags": [
"gauge",
"rwa",
"region",
"issuer-disclosures",
"onchain-data",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"blackrock-buidl | ondo-ousg | maple-orthogonal-pool | goldfinch-protocol | centrifuge-protocol | \u2026 (RWA issuer/pool id)\"}"
]
},
{
"id": "smallsat_deorbit_check",
"name": "Smallsat constellation chain",
"description": "Smallsat constellation chain | GET /gauge/smallsat-region | price $0.25 via x402",
"tags": [
"gauge",
"smallsat",
"region",
"fcc",
"itu-filings",
"operator-disclosures",
"cross-source",
"leading-indicator"
],
"examples": [
"{\"entity\":\"planet-labs | oneweb | leosat | swarm-tech | satellogic | audacy | \u2026 (satellite operator id)\"}"
]
},
{
"id": "lrt_depeg_check",
"name": "Liquid restaking chain, one LRT",
"description": "Liquid restaking chain, one LRT | GET /gauge/lrt-region | price $0.25 via x402",
"tags": [
"gauge",
"lrt",
"region",
"onchain",
"protocol-disclosures",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"etherfi-weeth | renzo-ezeth | kelp-rseth | swell-rsweth | eigenlayer | symbiotic | \u2026 (LRT / restaking id)\"}"
]
},
{
"id": "wildfire_causalchain_check",
"name": "Wildfire chain, one fire-risk region",
"description": "Wildfire chain, one fire-risk region | GET /gauge/wildfire-region | price $0.25 via x402",
"tags": [
"gauge",
"wildfire",
"region",
"nasa-firms",
"nws",
"epa",
"cross-source",
"leading-indicator"
],
"examples": [
"{\"region\":\"us-california | us-pacific-northwest | canada-bc | au-nsw | med-greece | amazon-brazil | siberia-russia | \u2026 (fire region id)\"}"
]
},
{
"id": "nas_ground_stop_check",
"name": "Aviation ground-stop chain",
"description": "Aviation ground-stop chain | GET /gauge/nas-region | price $0.25 via x402",
"tags": [
"gauge",
"nas",
"region",
"faa-nas-status",
"nws-metar",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"ewr | lga | jfk | sfo | ord | bos | phl | atl | dfw | den | clt | iah | mia | sea | lax | dca | mco | las | phx | mem | sdf | anc | \u2026 (US hub airport IATA id)\"}"
]
},
{
"id": "border_wait_check",
"name": "Land border chain, one crossing",
"description": "Land border chain, one crossing | GET /gauge/border-wait-region | price $0.25 via x402",
"tags": [
"gauge",
"border",
"wait",
"region",
"us-cbp",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"laredo-world-trade | laredo-colombia | laredo-bridge1 | otay-mesa-commercial | san-ysidro | el-paso-ysleta | el-paso-bota | pharr | hidalgo | nogales-mariposa | calexico-east | brownsville-"
]
},
{
"id": "earthquake_check",
"name": "Seismic activity chain, one seismic zone",
"description": "Seismic activity chain, one seismic zone | GET /gauge/earthquake-region | price $0.25 via x402",
"tags": [
"gauge",
"earthquake",
"region",
"usgs",
"cross-source",
"leading-indicator",
"causal-chain",
"no-data-no-charge"
],
"examples": [
"{\"entity\":\"california-san-andreas | cascadia-pnw | alaska-aleutians | japan | sumatra-indonesia | philippines | chile | mexico | central-america | turkey-anatolia | greece-italy-med | iran | nepal-him"
]
},
{
"id": "drug_shortage_check",
"name": "Drug shortage chain, one therapeutic class",
"description": "Drug shortage chain, one therapeutic class | GET /gauge/drug-shortage-region | price $0.25 via x402",
"tags": [
"gauge",
"drug",
"shortage",
"region",
"openfda",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"anesthesia | oncology | psychiatry-cns | analgesia-opioid | anti-infective | cardiovascular | neurology | gastroenterology | endocrine | hematology | pulmonary-allergy | ophthalmology | tpn"
]
},
{
"id": "drug_detail_check",
"name": "Per-drug shortage chain, one drug",
"description": "Per-drug shortage chain, one drug | GET /gauge/drug-detail-region | price $0.25 via x402",
"tags": [
"gauge",
"drug",
"detail",
"region",
"openfda",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"carboplatin | cisplatin | oxaliplatin | methotrexate | fluorouracil | epinephrine | norepinephrine | phenylephrine | atropine | amoxicillin | piperacillin-tazobactam | cefazolin | vancomyci"
]
},
{
"id": "severe_convection_check",
"name": "Severe convection and hail chain",
"description": "Severe convection and hail chain | GET /gauge/severe-convection-region | price $0.25 via x402",
"tags": [
"gauge",
"severe",
"convection",
"region",
"noaa-spc",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"tornado-alley-core | tx-panhandle-hail | central-kansas | high-plains-hail-alley | front-range-co | northern-plains | upper-midwest-derecho | corn-belt-il | ohio-valley | tennessee-valley |"
]
},
{
"id": "grid_reliability_check",
"name": "Grid reliability chain, one balancing authority",
"description": "Grid reliability chain, one balancing authority | GET /gauge/grid-reliability-region | price $0.25 via x402",
"tags": [
"gauge",
"grid",
"reliability",
"region",
"us-eia-930",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"caiso | ercot | miso | pjm | spp | nyiso | isone | bpa | pace | pacw | fpl | soco | tva | duke | psco | azps | aeci | pnm | \u2026 (EIA-930 Balancing Authority id)\"}"
]
},
{
"id": "hurricane_check",
"name": "Hurricane chain, one basin",
"description": "Hurricane chain, one basin | GET /gauge/hurricane-region | price $0.25 via x402",
"tags": [
"gauge",
"hurricane",
"region",
"noaa-nhc",
"cross-source",
"leading-indicator",
"causal-chain",
"no-data-no-charge"
],
"examples": [
"{\"entity\":\"atlantic | epacific | cpacific (NHC basin)\"}"
]
},
{
"id": "drought_check",
"name": "Drought chain, one drought region",
"description": "Drought chain, one drought region | GET /gauge/drought-region | price $0.25 via x402",
"tags": [
"gauge",
"drought",
"region",
"usdm",
"ndmc",
"usgs",
"cross-source",
"leading-indicator"
],
"examples": [
"{\"entity\":\"us-california | us-southwest | us-southernplains | us-northernplains | us-cornbelt | us-southeast | us-pacificnw | us-lowermississippi | us-northeast | us-rockies (US climate region)\"}"
]
},
{
"id": "defilending_solvency_check",
"name": "DeFi lending chain, one protocol",
"description": "DeFi lending chain, one protocol | GET /gauge/defilending-region | price $0.25 via x402",
"tags": [
"gauge",
"defilending",
"region",
"onchain",
"protocol-disclosures",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"aave | morpho | euler-v1 | cream | radiant | uwu-lend | venus | \u2026 (lending protocol id)\"}"
]
},
{
"id": "aidataset_takedown_check",
"name": "AI dataset takedown chain, one dataset",
"description": "AI dataset takedown chain, one dataset | GET /gauge/aidataset-region | price $0.25 via x402",
"tags": [
"gauge",
"aidataset",
"region",
"host-registries",
"official-notices",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"laion-5b | books3 | ms-celeb-1m | the-pile | megaface | imagenet | \u2026 (dataset id)\"}"
]
},
{
"id": "med_device_check",
"name": "Medical device recall chain",
"description": "Medical device recall chain | GET /gauge/meddevice-region | price $0.25 via x402",
"tags": [
"gauge",
"meddevice",
"region",
"us-fda",
"cross-source",
"leading-indicator",
"causal-chain",
"no-data-no-charge"
],
"examples": [
"{\"entity\":\"philips-dreamstation-cpap | medtronic-heartware-hvad | exactech-optetrak-knee | allergan-biocell-breast-implant | depuy-asr-hip | \u2026 (device product-line id)\"}"
]
},
{
"id": "tariff_policy_check",
"name": "Tariff and customs measure chain",
"description": "Tariff and customs measure chain | GET /gauge/tariff-region | price $0.25 via x402",
"tags": [
"gauge",
"tariff",
"region",
"ustr",
"federal-register",
"usitc",
"cross-source",
"leading-indicator"
],
"examples": [
"{\"entity\":\"sec301-china-list1 | sec232-steel | sec201-solar | adcvd-solar-cells-china | ieepa-reciprocal-2025 | de-minimis-change | \u2026 (trade-measure id)\"}"
]
},
{
"id": "biodiversity_credit_check",
"name": "Biodiversity credit chain, one project",
"description": "Biodiversity credit chain, one project | GET /gauge/biodiversity-region | price $0.25 via x402",
"tags": [
"gauge",
"biodiversity",
"region",
"registry",
"standard-body-feeds",
"cross-source",
"leading-indicator",
"causal-chain"
],
"examples": [
"{\"entity\":\"uk-bng-statutory-units | uk-bng-register | wallacea-methodology | plan-vivo-pv-nature | verra-nature-framework | terrasos-habitat-banks | cercarbono-biodiversity | \u2026 (biodiversity/nature cr"
]
}
]
}