SERVICE / DETAILother
Census record for one stablecoin
GET api.truthbear.co/stable/coin
SONAR SCORE0.847
LIVE PRICE0.010000
BAZAAR LIVEnot compatible
CDP INDEXEDno
DECISION EVIDENCE
40 observations in the last 24hWhy an agent can trust this route.
HANDSHAKE SUCCESS100.0%402 challenge reachable
PAID DELIVERY0.0%settlement observed
P90 LATENCY414msrecent response window
PRICE DRIFT0.0%advertised vs observed
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
SONAR PROBE HISTORY / 30D
JSON ↗Observed outcomes
LIVE ENDPOINT METADATA
[SIGNAL+PROOF] Census record for one stablecoin (?symbol=): market cap, price, depeg state, lifecycle and time series, each with record_hash. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.
Resource: api.truthbear.co/stable/coin
Network: base · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x2d16a243ba9fAcC6AC85519d5efad2149DC4C6c3
Payment methods: — · Last validation: 2026-10-15 11:56:57.311+00
{
"input": null,
"output": null,
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x2d16a243ba9fAcC6AC85519d5efad2149DC4C6c3",
"amount": "10000",
"scheme": "exact",
"network": "base",
"mimeType": "application/json",
"resource": "https://api.truthbear.co/stable/coin",
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"symbol": "required - stablecoin symbol; samples at free /stable/preview (sample_ids)"
}
},
"output": {
"type": "json",
"example": {
"entity": "basis-cash-bac",
"current": {
"state": "dead",
"ongoing": false,
"death_type": "depeg-abandoned",
"lifespan_days": 152
},
"lifecycle": {
"peg": "usd",
"state": "dead",
"end_at": "2021-05-01",
"issuer": "Basis Cash (anon)",
"context": "The algorithmic stablecoin BAC traded below USD 1 for a long period and never regained its peg; after the seigniorage...",
"ongoing": false,
"birth_at": "2020-11-30",
"mechanism": "algorithmic",
"death_type": "depeg-abandoned",
"lifespan_days": 152
},
"signal_id": "stablecoin.lifecycle",
"source_ref": "https://www.coingecko.com/en/coins/basis-cash",
"entity_name": "Basis Cash (BAC)",
"observed_at": "2026-08-24T15:00:00.121Z",
"record_hash": "sha256:664da5b5c8cc399928a3149a49732e15d67f66d69b683e1469c0ab9871d8d702",
"source_tier": "T1",
"snapshot_date": "2026-08-24",
"data_age_hours": 0,
"hash_core_version": 4
}
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"queryParams"
],
"properties": {
"type": {
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"examples": [
"basis-cash-bac"
],
"description": "required - stablecoin symbol; samples at free /stable/preview (sample_ids)"
}
},
"additionalProperties": false
}
}
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"const": "json"
},
"example": {}
}
}
}
},
"priceUsd": "$0.01",
"discoverable": true,
"outputSchema": {
"type": "object",
"required": [
"coin_id",
"current"
],
"properties": {
"name": {
"type": "string"
},
"coin_id": {
"type": "string"
},
"current": {
"type": "object",
"description": "Latest observation for this coin; fields depend on the source (e.g. state / ongoing / death_type / lifespan_days)"
},
"companion": {
"type": "string",
"description": "Where to fetch companion signals such as depeg and redemption pressure"
},
"lifecycle": {
"type": [
"object",
"null"
],
"description": "Lifecycle: peg / state / first_seen / last_seen / end_at"
},
"source_ref": {
"type": [
"string",
"null"
]
},
"observed_at": {
"type": "string",
"format": "date-time"
},
"record_hash": {
"type": "string"
},
"source_tier": {
"type": [
"string",
"null"
]
},
"capture_date": {
"type": "string",
"format": "date"
},
"data_age_hours": {
"type": "number"
},
"hash_core_version": {
"type": "string"
}
}
},
"routeTemplate": "/stable/coin",
"priceUsdNumber": 0.01
}
},
"description": "[SIGNAL+PROOF] Census record for one stablecoin (?symbol=): market cap, price, depeg state, lifecycle and time series, each with record_hash. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed. $0.01 per call.",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"example": {
"symbol": "basis-cash-bac"
},
"required": [
"symbol"
],
"properties": {
"symbol": {
"type": "string",
"examples": [
"basis-cash-bac"
],
"description": "required - stablecoin symbol; samples at free /stable/preview (sample_ids)"
}
},
"queryParams": {
"symbol": "required - stablecoin symbol; samples at free /stable/preview (sample_ids)"
},
"discoverable": true,
"exampleRequest": "/stable/coin?symbol=basis-cash-bac"
},
"output": {
"type": "object",
"required": [
"coin_id",
"current"
],
"properties": {
"name": {
"type": "string"
},
"coin_id": {
"type": "string"
},
"current": {
"type": "object",
"description": "Latest observation for this coin; fields depend on the source (e.g. state / ongoing / death_type / lifespan_days)"
},
"companion": {
"type": "string",
"description": "Where to fetch companion signals such as depeg and redemption pressure"
},
"lifecycle": {
"type": [
"object",
"null"
],
"description": "Lifecycle: peg / state / first_seen / last_seen / end_at"
},
"source_ref": {
"type": [
"string",
"null"
]
},
"observed_at": {
"type": "string",
"format": "date-time"
},
"record_hash": {
"type": "string"
},
"source_tier": {
"type": [
"string",
"null"
]
},
"capture_date": {
"type": "string",
"format": "date"
},
"data_age_hours": {
"type": "number"
},
"hash_core_version": {
"type": "string"
}
}
}
},
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x2d16a243ba9fAcC6AC85519d5efad2149DC4C6c3",
"scheme": "exact",
"network": "base",
"amountAtomic": "10000"
}
]
}METADATA PROVENANCE
Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.