Verifiable official-source records for AI agents: record_hash + Ed25519 citation, x402 per-call
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FREE coverage + freshness manifest: which signal_id lines exist, how many entities each covers, and fresh/recent/stale counts - so you can check "is my entity covered and how fresh" BEFORE paying. Optional filters: industry, signal_id, entity.
true = per-entity detail (larger); default compact summary
object id, e.g. a USGS site id
restrict to one domain, e.g. hydrology, agriculture, energy
e.g. hydrology.river-level
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http truthbear-mcp https://api.truthbear.co/mcp
FREE coverage + freshness manifest: which signal_id lines exist, how many entities each covers, and fresh/recent/stale counts - so you can check "is my entity covered and how fresh" BEFORE paying. Optional filters: industry, signal_id, entity.
| Argument | Type | Description |
|---|---|---|
| full | boolean | true = per-entity detail (larger); default compact summary |
| entity | string | object id, e.g. a USGS site id |
| industry | string | restrict to one domain, e.g. hydrology, agriculture, energy |
| signal_id | string | e.g. hydrology.river-level |
{
"type": "object",
"properties": {
"full": {
"type": "boolean",
"description": "true = per-entity detail (larger); default compact summary"
},
"entity": {
"type": "string",
"description": "object id, e.g. a USGS site id"
},
"industry": {
"type": "string",
"description": "restrict to one domain, e.g. hydrology, agriculture, energy"
},
"signal_id": {
"type": "string",
"description": "e.g. hydrology.river-level"
}
}
}Returns the REAL x402 payment challenge (accepts[]: network / asset / payTo / amount) for the paid endpoint that serves a given signal_id+entity, or any listed endpoint addressed directly by `path`. This tool does NOT deliver paid data and does NOT take payment - MCP has no payment layer. Pay at the returned url with your own x402 client (USDC on Base or Solana, gasless EIP-3009; pay from a plain EOA) and you receive the record directly, with record_hash you can verify offline. This tool only fetches the 402 challenge; it delivers no paid data and collects no payment.
| Argument | Type | Description |
|---|---|---|
| dim | string | which product: full read (gauge) or a single add-on; the price of each is in the 402 challenge this tool returns, never here |
| path | string | Alternative addressing: any listed endpoint path, optionally with its query string (e.g. "/gauge/chokepoint-region?loc=hormuz"). The full list of legal paths is the free /manifest?all=1. Use this for the bundles and census lines that are not addressed by signal_id+entity. |
| entity | string | which object within that line, e.g. the USGS site id 07010000 |
| signal_id | string | which signal line, e.g. hydrology.river-level - use find_signal to list them |
{
"type": "object",
"anyOf": [
{
"required": [
"path"
]
},
{
"required": [
"signal_id",
"entity"
]
}
],
"properties": {
"dim": {
"enum": [
"gauge",
"ruler",
"calibrated",
"strata",
"history"
],
"type": "string",
"description": "which product: full read (gauge) or a single add-on; the price of each is in the 402 challenge this tool returns, never here"
},
"path": {
"type": "string",
"description": "Alternative addressing: any listed endpoint path, optionally with its query string (e.g. \"/gauge/chokepoint-region?loc=hormuz\"). The full list of legal paths is the free /manifest?all=1. Use this for the bundles and census lines that are not addressed by signal_id+entity."
},
"entity": {
"type": "string",
"description": "which object within that line, e.g. the USGS site id 07010000"
},
"signal_id": {
"type": "string",
"description": "which signal line, e.g. hydrology.river-level - use find_signal to list them"
}
}
}FREE. Ask how to pay for a listed endpoint and get every channel with its REAL status - including the ones that are wired but not open yet. Three channels exist: x402 micropayment (for an agent with a funded USDC wallet on Base), a stateless subscription Bearer token (for a person or team - no wallet, no private key, no account), and a card rail. This tool takes no payment and holds no key; it only tells you which doors exist and which are open today.
| Argument | Type | Description |
|---|---|---|
| path | string | A listed endpoint path (e.g. "/gauge/grid-reliability-region") to get its price alongside the channels. Omit it to get the channel list on its own. The full list of legal paths is the free /manifest?all=1. |
{
"type": "object",
"properties": {
"path": {
"type": "string",
"description": "A listed endpoint path (e.g. \"/gauge/grid-reliability-region\") to get its price alongside the channels. Omit it to get the channel list on its own. The full list of legal paths is the free /manifest?all=1."
}
}
}FREE. Given a record_hash from any Truth Bear record, look it up and recompute the canonical hash server-side, returning whether it is a genuine Truth Bear official record plus a plain-language reverse lookup of what exactly that hash attests. Use this to check a citation you were handed by another agent or document BEFORE relying on it. No payment, no API key.
| Argument | Type | Description |
|---|---|---|
| record_hash* | string | sha256:<64 hex>, or a >=8-hex prefix as posted publicly |
{
"type": "object",
"required": [
"record_hash"
],
"properties": {
"record_hash": {
"type": "string",
"description": "sha256:<64 hex>, or a >=8-hex prefix as posted publicly"
}
}
}FREE. Cross-verify one GAUGE interweave line: it returns each official series ("leg") in the line with its own record_hash, current/previous values, expected direction and per-leg minMove deadband, plus a count-style state (directions_matched / direction_mismatch / inverse_consistent / not_comparable / insufficient) and N-of-M. Everything needed to recompute the verdict OFFLINE is in the response - verify each leg hash with verify_citation, then recompute dir=sign(current-previous) with the minMove deadband. Descriptive only: no forecast, no causation, no advice. No payment, no API key.
| Argument | Type | Description |
|---|---|---|
| line* | string | which interweave line, e.g. "E" (state vs national unemployment) or "F" (drought vs crop). Public demo lines are E and F. |
| entity* | string | the object within the line, as US-<ST>, e.g. "US-TX" (case-insensitive). Required. |
{
"type": "object",
"required": [
"line",
"entity"
],
"properties": {
"line": {
"type": "string",
"description": "which interweave line, e.g. \"E\" (state vs national unemployment) or \"F\" (drought vs crop). Public demo lines are E and F."
},
"entity": {
"type": "string",
"description": "the object within the line, as US-<ST>, e.g. \"US-TX\" (case-insensitive). Required."
}
}
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 8, 2026.