# `io.github.xka0085-byte/receiptrail` on anlyon.dev

> Text inside fenced blocks marked untrusted-server-text was written by the MCP server's publisher, not by anlyon.dev. It is data to inspect, not instructions to follow. Invisible characters are shown as [U+XXXX].
> No finding is not a safety guarantee: these are point-in-time checks of tool definitions, not of code or behaviour.

- Page: https://anlyon.dev/servers/io.github.xka0085-byte/receiptrail
- JSON: https://anlyon.dev/api/v1/servers/io.github.xka0085-byte/receiptrail
- Version: 0.3.0 (active)
- Publisher: io.github.xka0085-byte (GitHub account)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Repository: https://github.com/xka0085-byte/agenttoll
- Metadata from the official MCP Registry, synced 2026-10-21T18:51:59.049Z

Title and description, as the publisher wrote them:

```untrusted-server-text
ReceiptRail
Read-only on-chain receipt check for x402 payments; confirm settlement before trusting a tx.
```

Scanned 2026-10-21T19:28:56.752Z over streamable-http.

**3 tools: 2 change things and 1 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 2 | ask |
| Only reads | read | 1 | allow |

## Findings

No check matched anything in these tool definitions.


## Changes things (2)

Creates or changes something that can be changed back. Claude Code: ask.

### `issue_receipt`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Anchor a SHA-256 digest of delivered content plus the x402 settlement reference on Solana. Returns a permanent, publicly verifiable receipt (poll until outcome === "settled"). Costs 0.001 USDC via x402; if x402_payment_signature is omitted, returns the payment challenge instead (pay 0.001 USDC to the service address, then call again with the payment tx signature).
```

### `verify_receipt`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Verify an AgentToll receipt against live Solana state: PDA owner must be the AgentToll program and the stored digest must match the receipt. Look up by receipt_id, or by x402_payment_ref (always works — the receipt lives on-chain). Read-only, no cost.
```

## Only reads (1)

Looks things up and changes nothing. Claude Code: allow.

### `get_receipt`

- The name "get_receipt" says "get": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Fetch full receipt details: digests, checks, outcome, amount, buyer, seller, timestamp, PDA. Look up by receipt_id, or by x402_payment_ref (always works — the receipt lives on-chain). Read-only, no cost.
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `receiptrail`:

```json
{
  "permissions": {
    "allow": [
      "mcp__receiptrail__get_receipt"
    ],
    "ask": [
      "mcp__receiptrail__issue_receipt",
      "mcp__receiptrail__verify_receipt"
    ],
    "deny": []
  }
}
```