Truth Bear - Official Government Data with Cryptographic Proof (GAUGE)

Official-source signals for AI agents.

CommunityOnlineNo sign-inGlobalFreeRead-only

What it can do

  • Verify Citation: 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 plai
  • Find Signal: 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" BEFOR
  • Get Official Record: Returns the REAL x402 payment challenge (accepts[]: network / asset / payTo / amount) for the paid endpoint that serves a given signal_id+entity. This tool does NOT deliver paid d

What data it sees

Do you need an account

No: the server works without sign-in

Official-source signals for AI agents. Every record ships a record_hash (canonical sha256, recomputable offline) plus the official source and timestamp, so you can verify what you were told without trusting this server.

Sources are official government records and named registries: US federal agencies (USGS, NOAA, NWS, EPA, SEC EDGAR, openFDA, EIA, BLS, FAA, US CBP, USTR, USITC, Federal Register) plus IMF PortWatch, UNFCCC and standards-body feeds.

Free tools (no payment, no API key, no account):

  • verify_citation - check any Truth Bear record_hash and get a plain-language reverse lookup of exactly what that hash attests. Use it on a citation another agent handed you, before you rely on it.
  • find_signal - coverage and freshness manifest: which signal 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.

Paid records are bought directly over x402 (USDC on Base or Solana). get_official_record returns the real 402 challenge (network / asset / payTo / amount) and you pay at that URL from your own wallet. This server never takes payment and never delivers paid data.

Honesty rules we hold ourselves to:

  • Descriptive only - no advice, no forecasts, no adjudication. The reading is yours.
  • No data found means 422 no_charge - you are not billed for a miss.
  • Cryptographic provenance: every paid response carries an Ed25519-signed citation, so delivery is tamper-evident and auditable offline with no call back to us.
  • Freshness is computed at request time and disclosed per record, including when an upstream source is overdue.

How to connect

How to connect Truth Bear - Official Government Data with Cryptographic Proof (GAUGE) to Claude

The server address to paste into Claude settings:

https://mcp-gauge--truthbear.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Truth Bear - Official Government Data with Cryptographic Proof (GAUGE) to ChatGPT

The server address to paste into ChatGPT settings:

https://mcp-gauge--truthbear.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Truth Bear - Official Government Data with Cryptographic Proof (GAUGE) to Cursor

The server address to paste into Cursor settings:

https://mcp-gauge--truthbear.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (3)

Raw names from tools/list. Only developers need these.

verify_citationFREE. 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.
find_signalFREE 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.
get_official_recordReturns the REAL x402 payment challenge (accepts[]: network / asset / payTo / amount) for the paid endpoint that serves a given signal_id+entity. 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.