Truth Bear
Verifiable official-source records for AI agents: record_hash + Ed25519 citation, x402 per-call
- tools
- 5
- transport
- HTTP
- last updated
- Nov 8, 2026
Tools
5 toolsPublic tool metadata for what this MCP can expose to an agent.
find_signalCoverage + freshness: which signals exist, queryable before you pay
Coverage + freshness: which signals exist, queryable before you pay
No parameter schema in public metadata yet.
verify_citationCheck a `record_hash`, get the official reverse-lookup
Check a `record_hash`, get the official reverse-lookup
No parameter schema in public metadata yet.
purchase_optionsHow to pay for a listed endpoint
How to pay for a listed endpoint
No parameter schema in public metadata yet.
verify_triangularCross-verify one interwoven official line
Cross-verify one interwoven official line
No parameter schema in public metadata yet.
get_official_recordReturns a real payment challenge; pay, then receive the signed official record
Returns a real payment challenge; pay, then receive the signed official record
No parameter schema in public metadata yet.
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Truth Bear — verifiable official-source data for AI agents (MCP)
Neutral, third-party access to official public records — US federal agencies, named registries and standards bodies — where every paid record ships an offline-recomputable record_hash and an Ed25519-signed citation. Pay per call in USDC via x402. No account, no API key.
Truth Bear restates official records faithfully; it does not adjudicate, advise, or endorse. The authoritative source is the official publisher named in every citation — verify and dispute there.
Add it (remote MCP server)
{
"mcpServers": {
"truthbear": { "url": "https://api.truthbear.co/mcp" }
}
}
JSON-RPC 2.0 over HTTP POST (initialize / tools/list / tools/call). No key needed to list or verify; paid tools return a real x402 payment challenge you settle from your own wallet.
Tools
Details
- Repository
- github.com/changchinfu/truthbear-mcp
- Transport
- HTTP
- Registry
- MCP registry, active