LedgerProof LAIN — Verified Evidence for Agents
Server Details
Cryptographically anchored evidence for agents: verified run receipts, proof-gated settlement.
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- Status
- Unhealthy
- Uptime
- 34.5% over 41 days
- Last Tested
- Transport
- Streamable HTTP
- URL
TDQS
Scored across 9 tools
Most tools have clearly distinct roles (discover, fund, poll, verify, mint). The main ambiguity is between request_capability, resolve_confidence, and fund_opportunity—all involve paying for something—but their descriptions make the specific triggers (capability ID, confidence gap, opportunity) reasonably clear.
All tools follow a consistent verb_noun pattern: discover_capabilities, discover_opportunities, fund_opportunity, get_job, get_sample_receipt, request_capability, resolve_confidence. The single-word `verify` is a clear exception but still fits the imperative verb style without introducing a different convention.
At 8-9 tools, the server is well-scoped for its purpose: discovery, acquisition, verification, and evidence graph access. The count is neither bloated nor too thin, and each tool has a place in the lifecycle.
The surface covers the core loop well: discover capabilities/opportunities, purchase/resolve, poll jobs, mint sample receipts, verify, and read evidence graphs. Minor gaps exist—no explicit credential/enrollment tool, no way to retrieve a specific paid receipt by ID—but these are not fatal for the main workflow.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
1 tool update
- Changed
resolve_confidence2 fields changed- added
Input schema / properties / settlementAdded value: +{ + "description": "x402 = settle autonomously in USDC on Base from your OWN wallet (no credential) - the DEFAULT for cold callers; m2m = enrolled machine-to-machine", + "enum": [ + "x402", + "m2m" + ], + "type": "string" +} - added
Input schema / properties / x_paymentAdded value: +{ + "description": "settlement:'x402' step 2 — your signed X-PAYMENT (base64 x402 v1 payload). Call once WITHOUT it to get the price-only 402 challenge (price + payTo + asset on Base), then re-send with x_payment to settle inline from your own wallet.", + "type": "string" +}
1 tool update
- Changed
request_capability3 fields changed- added
Input schema / properties / settlement / descriptionAdded value: +"x402 = pay autonomously in USDC on Base from your OWN wallet (no enrollment, no human); checkout = returned Stripe URL; m2m = enrolled/test machine settlement" - changed
Input schema / properties / settlement / enumPrevious value: -[ - "checkout", - "m2m" -]New value: +[ + "x402", + "checkout", + "m2m" +] - added
Input schema / properties / x_paymentAdded value: +{ + "description": "settlement:'x402' step 2 — your signed X-PAYMENT (base64 x402 v1 payload). Call once WITHOUT it to get the 402 challenge (price + payTo + asset on Base), then re-send with x_payment set to settle inline from your own wallet.", + "type": "string" +}
1 tool update
- Added
verify
1 tool update
- Changed
request_capability1 field changed- changed
Input schema / properties / query / descriptionPrevious value: -"answer.record-search: entity, product, or filing name (2-80 chars) - returns a PROVEN answer from the anchored public record (FDA recalls/approvals, SEC EDGAR, sanctions-list snapshots) with hash-anchored citations"New value: +"answer.record-search: entity, product, or filing name (2-80 chars) - returns a cited answer from the anchored public record (FDA recalls/approvals, SEC EDGAR, sanctions-list snapshots) with hash-anchored citations; proof scope is the existence + integrity of the citations, not the truth of a conclusion"
6 tool updates
- Added
discover_opportunities - Added
fund_opportunity - Added
get_sample_receipt - Changed
request_capability8 fields changed- changed
Input schema / properties / capability / enumPrevious value: -[ - "receipt.agent-run", - "evidence.verify" -]New value: +[ + "receipt.agent-run", + "evidence.verify", + "answer.record-search" +] - changed
Input schema / properties / environment / defaultPrevious value: -"test"New value: +"live" - added
Input schema / properties / environment / descriptionAdded value: +"live (default, real money); 'test' is the invitation-only evaluation sandbox - requires an issued credential" - changed
Input schema / properties / environment / enumPrevious value: -[ - "test", - "live" -]New value: +[ + "live", + "test" +] - added
Input schema / properties / limitAdded value: +{ + "maximum": 10, + "type": "integer" +} - added
Input schema / properties / queryAdded value: +{ + "description": "answer.record-search: entity, product, or filing name (2-80 chars) - returns a PROVEN answer from the anchored public record (FDA recalls/approvals, SEC EDGAR, sanctions-list snapshots) with hash-anchored citations", + "type": "string" +} - added
Input schema / properties / sinceAdded value: +{ + "description": "YYYY-MM-DD", + "type": "string" +} - added
Input schema / properties / sourcesAdded value: +{ + "items": { + "enum": [ + "us-sec-edgar", + "fda-drug-recalls", + "fda-drugsfda", + "fda-device-510k", + "fda-device-pma", + "un-sanctions", + "eu-sanctions" + ], + "type": "string" + }, + "type": "array" +}
- Added
resolve_confidence - Added
subject_evidence_graph
3 tool updates
- First observed
discover_capabilities - First observed
get_job - First observed
request_capability
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Related MCP Servers
- FlicenseNot gradedqualityCmaintenanceCryptographically anchored, tamper-evident evidence receipts for AI agents — verified run receipts, existence-at-time proofs, and cited answers from an anchored public record. Remote MCP with proof-gated settlement; attests existence and integrity, never truth.-

evermint-mcpofficial
AlicenseNot gradedqualityCmaintenanceTamper-evident receipts for AI agent actions. The notary layer for agent-to-agent transactions.23 npm1MIT- AlicenseAqualityBmaintenanceEnables AI agents to create cryptographically verifiable receipts of their delegated work, with capabilities for multi-party approval and offline verification.1147 npmApache 2.0
- AlicenseNot gradedqualityDmaintenanceVerifiable action receipts for AI agents — agents sign claims locally, an independent witness countersigns and timestamps, anyone can verify offline.22 npmMIT
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