# ReceiptRail — x402 Delivery Receipts (remote · agenttoll-receipts.app.workbuddy.host)

On-chain x402 delivery receipts on Solana: hash-locked, verifiable proof of delivery.

- Trust score: 65/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `agenttoll-receipts.app.workbuddy.host`: 65/100 (this document), [markdown](https://verifymcp.io/servers/xka0085-byte-receiptrail/agenttoll-receipts.md), [page](https://verifymcp.io/servers/xka0085-byte-receiptrail/agenttoll-receipts)

## Channel facts

- Endpoint: `https://agenttoll-receipts.app.workbuddy.host/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.2.1`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-20.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 3 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 80/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 411 tokens (~137/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 10/100
  - Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the ReceiptRail — x402 Delivery Receipts MCP server?

ReceiptRail — x402 Delivery Receipts is a hosted endpoint at https://agenttoll-receipts.app.workbuddy.host/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http xka0085-byte-receiptrail 'https://agenttoll-receipts.app.workbuddy.host/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "xka0085-byte-receiptrail": {
      "url": "https://agenttoll-receipts.app.workbuddy.host/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "xka0085-byte-receiptrail": {
      "type": "http",
      "url": "https://agenttoll-receipts.app.workbuddy.host/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.xka0085-byte-receiptrail]
url = "https://agenttoll-receipts.app.workbuddy.host/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "xka0085-byte-receiptrail": {
      "type": "remote",
      "url": "https://agenttoll-receipts.app.workbuddy.host/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add xka0085-byte-receiptrail --url 'https://agenttoll-receipts.app.workbuddy.host/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  xka0085-byte-receiptrail:
    url: "https://agenttoll-receipts.app.workbuddy.host/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "xka0085-byte-receiptrail": {
      "Transport": "http",
      "Url": "https://agenttoll-receipts.app.workbuddy.host/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add xka0085-byte-receiptrail -t streamable-http -u 'https://agenttoll-receipts.app.workbuddy.host/mcp'
```

### Other

```json
{
  "mcpServers": {
    "xka0085-byte-receiptrail": {
      "type": "http",
      "url": "https://agenttoll-receipts.app.workbuddy.host/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-19 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 64, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-17 (score 64)

First indexed and scored.

## MCP tools (3)

### `issue_receipt` (~191 tokens)

Issue delivery receipt

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).

Input parameters:

- `buyer` (string): Optional buyer identifier (wallet address)
- `deliverable_digest` (string, required): SHA-256 hex digest (64 chars) of the delivered content
- `seller` (string): Optional seller identifier
- `x402_payment_ref` (string, required): Unique reference for this transaction (1-128 chars)
- `x402_payment_signature` (string): Solana tx signature of the 0.001 USDC payment to the service address. Omit to receive the payment challenge.

### `verify_receipt` (~114 tokens)

Verify delivery receipt

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.

Input parameters:

- `payment_ref` (string): x402_payment_ref of the transaction (use this if receipt_id unknown; resolved on-chain)
- `receipt_id` (string): Receipt id, e.g. r_abcdef1234567890

### `get_receipt` (~106 tokens)

Get receipt details

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.

Input parameters:

- `payment_ref` (string): x402_payment_ref of the transaction (use this if receipt_id unknown; resolved on-chain)
- `receipt_id` (string): Receipt id, e.g. r_abcdef1234567890

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/xka0085-byte-receiptrail/agenttoll-receipts#diagnostics

## Score history

- 2026-09-20: 65
- 2026-09-19: 65
- 2026-09-18: 64
- 2026-09-17: 64

## Common questions

### What is the ReceiptRail — x402 Delivery Receipts MCP server?

ReceiptRail — x402 Delivery Receipts is an MCP server listed in the public MCP registry as io.github.xka0085-byte/receiptrail. On-chain x402 delivery receipts on Solana: hash-locked, verifiable proof of delivery. This page covers its hosted endpoint (https://agenttoll-receipts.app.workbuddy.host/mcp).

### Is the ReceiptRail — x402 Delivery Receipts MCP server safe to use?

ReceiptRail — x402 Delivery Receipts scores 65 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the ReceiptRail — x402 Delivery Receipts MCP server expose?

ReceiptRail — x402 Delivery Receipts exposes 3 tools: issue_receipt, verify_receipt, get_receipt. Their descriptions and schemas cost roughly 411 tokens of context every time the server is loaded.

### Does the ReceiptRail — x402 Delivery Receipts MCP server require authentication?

No. We connected to ReceiptRail — x402 Delivery Receipts without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the ReceiptRail — x402 Delivery Receipts MCP server still maintained?

ReceiptRail — x402 Delivery Receipts is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://agenttoll-receipts.app.workbuddy.host/mcp
- Website: https://agenttoll-receipts.app.workbuddy.host/
- Changelog RSS feed: https://verifymcp.io/servers/xka0085-byte-receiptrail/agenttoll-receipts.xml
- Changelog JSON feed: https://verifymcp.io/servers/xka0085-byte-receiptrail/agenttoll-receipts.json
- HTML version of this page: https://verifymcp.io/servers/xka0085-byte-receiptrail/agenttoll-receipts