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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
22.8% over 69 days
Last Tested
Transport
Streamable HTTP
URL
ChatGPT
–
Claude
–

TDQS

A4.1/5.0

Scored across 9 tools

Disambiguation4/5

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.

Naming Consistency5/5

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.

Tool Count5/5

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.

Completeness4/5

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. 1 tool update
    • Changedresolve_confidence2 fields changed
      • addedInput schema / properties / settlement
        Added 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"
        +}
      • addedInput schema / properties / x_payment
        Added 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"
        +}
  2. 1 tool update
    • Changedrequest_capability3 fields changed
      • addedInput schema / properties / settlement / description
        Added 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"
      • changedInput schema / properties / settlement / enum
        Previous value: -[
        -  "checkout",
        -  "m2m"
        -]New value: +[
        +  "x402",
        +  "checkout",
        +  "m2m"
        +]
      • addedInput schema / properties / x_payment
        Added 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"
        +}
  3. 1 tool update
    • Addedverify
  4. 1 tool update
    • Changedrequest_capability1 field changed
      • changedInput schema / properties / query / description
        Previous 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"
  5. 6 tool updates
    • Addeddiscover_opportunities
    • Addedfund_opportunity
    • Addedget_sample_receipt
    • Changedrequest_capability8 fields changed
      • changedInput schema / properties / capability / enum
        Previous value: -[
        -  "receipt.agent-run",
        -  "evidence.verify"
        -]New value: +[
        +  "receipt.agent-run",
        +  "evidence.verify",
        +  "answer.record-search"
        +]
      • changedInput schema / properties / environment / default
        Previous value: -"test"New value: +"live"
      • addedInput schema / properties / environment / description
        Added value: +"live (default, real money); 'test' is the invitation-only evaluation sandbox - requires an issued credential"
      • changedInput schema / properties / environment / enum
        Previous value: -[
        -  "test",
        -  "live"
        -]New value: +[
        +  "live",
        +  "test"
        +]
      • addedInput schema / properties / limit
        Added value: +{
        +  "maximum": 10,
        +  "type": "integer"
        +}
      • addedInput schema / properties / query
        Added 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"
        +}
      • addedInput schema / properties / since
        Added value: +{
        +  "description": "YYYY-MM-DD",
        +  "type": "string"
        +}
      • addedInput schema / properties / sources
        Added 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"
        +}
    • Addedresolve_confidence
    • Addedsubject_evidence_graph
  6. 3 tool updates
    • First observeddiscover_capabilities
    • First observedget_job
    • First observedrequest_capability

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