# Sablebolt swaps (remote · api.sablebolt.io)

Account-free crypto swaps: assets, routes, limits, live quotes, address checks, swap status

- Trust score: 67/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- remote · `api.sablebolt.io`: 67/100 (this document), [markdown](https://verifymcp.io/servers/io-sablebolt-swaps/api.md), [page](https://verifymcp.io/servers/io-sablebolt-swaps/api)

## Channel facts

- Endpoint: `https://api.sablebolt.io/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.1.1`

## 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 2026-11-04.

- **Endpoint Security**: 11/100
  - TLS not yet verified: we couldn't open a connection to check the certificate.
  - Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS not yet verified: we couldn't read the response headers to check for it.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 0/100
  - Transport check failed: declared streamable-http, but we couldn't connect to verify it.
- **Schema Quality & AI Usability**: 0/100
  - Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.
- **Tool Safety**: 0/100
  - Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.
- **Capabilities**: 0/100
  - Capabilities not yet verified: we couldn't read the endpoint's capabilities.

**Unverified: 5 categories.** Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.

## Install

### How do I install the Sablebolt swaps MCP server?

Sablebolt swaps is a hosted endpoint at https://api.sablebolt.io/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 io-sablebolt-swaps 'https://api.sablebolt.io/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "io-sablebolt-swaps": {
      "url": "https://api.sablebolt.io/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "io-sablebolt-swaps": {
      "type": "http",
      "url": "https://api.sablebolt.io/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.io-sablebolt-swaps]
url = "https://api.sablebolt.io/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "io-sablebolt-swaps": {
      "type": "remote",
      "url": "https://api.sablebolt.io/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add io-sablebolt-swaps --url 'https://api.sablebolt.io/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  io-sablebolt-swaps:
    url: "https://api.sablebolt.io/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "io-sablebolt-swaps": {
      "Transport": "http",
      "Url": "https://api.sablebolt.io/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add io-sablebolt-swaps -t streamable-http -u 'https://api.sablebolt.io/mcp'
```

### Other

```json
{
  "mcpServers": {
    "io-sablebolt-swaps": {
      "type": "http",
      "url": "https://api.sablebolt.io/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.

### 2026-11-04 (score 67, 0)

- [security regression] Endpoint reachability: reachable → unreachable
- [security regression] Authorization: partial → unverified
- [security regression] Tool safety: pass → unverified
- [security regression] TLS certificate: pass → unverified
- [security regression] HSTS header: pass → unverified
- [security regression] Transport: pass → fail
- [functional regression] Capabilities: pass → unverified
- [functional regression] Schema quality: 0 → unverified
- [functional regression] Tool coverage: 100 → unverified

### 2026-11-03 (score 67)

First indexed and scored.

## MCP tools (8)

### `list_assets` (~35 tokens)

List assets

Every asset the swap form knows, with slug, ticker, network, confirmations, extra-id name and whether it is available right now.

### `list_routes` (~29 tokens)

List routes

Every route with its own page (from/to slugs) and whether both sides are available right now.

### `get_limits` (~58 tokens)

Minimum and maximum

Minimum and maximum amount for a route, in the asset you send.

Input parameters:

- `from` (string, required): asset slug you send, e.g. usdt-trc20
- `to` (string, required): asset slug you receive, e.g. btc

### `get_quote` (~72 tokens)

Live quote

Floating estimate for a route and amount: amountTo, networkFee (taken out of the payout), receiveAmount, rate. The final amount is set when the deposit confirms.

Input parameters:

- `amount` (string, required): decimal amount you send, as a string
- `from` (string, required)
- `to` (string, required)

### `validate_address` (~49 tokens)

Validate an address

Whether an address has the right format for an asset. Does not check who owns it or whether an exchange needs a memo.

Input parameters:

- `address` (string, required)
- `asset` (string, required): asset slug

### `get_swap_status` (~50 tokens)

Swap status

Status of one swap by id: stage (1 waiting … 5 done), deposit and payout addresses, amounts, both transaction hashes.

Input parameters:

- `id` (string, required): swap id from the status page URL

### `create_swap` (~293 tokens)

Create a swap (for an agent that controls the sending wallet)

Creates the swap and returns the payment instruction: the one-time deposit address, the memo if the chain needs one, the exact amount in decimal and in base units with the decimals and token contract as listed by the liquidity partner, a wallet URI where a standard exists (BIP-21, ERC-681, Solana Pay, Monero, TON), and the status URL. Use it only when you control the wallet at fromAddress and will send the deposit yourself; for a person use swap_page_link. The deposit must come from fromAddress; there is no refund address — a swap that cannot be completed is handled by support from the swap id. Floating rate: the final amount is set when the deposit confirms.

Input parameters:

- `amount` (string, required): decimal amount you send, as a string, within get_limits
- `extraId` (string): memo / destination tag / payment ID for the receiving side, only where that asset needs one
- `from` (string, required): asset slug you send, e.g. usdt-trc20
- `fromAddress` (string, required): the address you will send the deposit from (a wallet you control)
- `fromExtraId` (string): the sending side's extra id, only if your wallet attaches one
- `to` (string, required): asset slug to receive, e.g. btc
- `toAddress` (string, required): the receiving address for the `to` asset

### `swap_page_link` (~103 tokens)

Swap page link (hand-off)

The page where the person completes the swap, with the amount prefilled. A swap for a person is completed by that person on the page: open the link, check the amount, both addresses and the memo on screen, then send the deposit from your own wallet. An agent that controls the sending wallet itself uses create_swap and pays the instruction it gets back.

Input parameters:

- `amount` (string)
- `from` (string, required)
- `to` (string, required)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/io-sablebolt-swaps/api#diagnostics

## Score history

- 2026-11-04: 67
- 2026-11-03: 67

## Common questions

### What is the Sablebolt swaps MCP server?

Sablebolt swaps is an MCP server listed in the public MCP registry as io.sablebolt/swaps. Account-free crypto swaps: assets, routes, limits, live quotes, address checks, swap status. This page covers its hosted endpoint (https://api.sablebolt.io/mcp).

### Is the Sablebolt swaps MCP server safe to use?

Sablebolt swaps scores 67 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 Sablebolt swaps MCP server expose?

Sablebolt swaps exposes 8 tools: list_assets, list_routes, get_limits, get_quote, validate_address, and 3 more. Their descriptions and schemas cost roughly 689 tokens of context every time the server is loaded.

### Does the Sablebolt swaps MCP server require authentication?

Its publisher declares no required credentials for Sablebolt swaps. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.

### Is the Sablebolt swaps MCP server still maintained?

Sablebolt swaps is still listed in the MCP registry, though our most recent checks did not reach this channel. We last reached this channel on 3 November 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://api.sablebolt.io/mcp
- Website: https://sablebolt.io/developers
- Changelog RSS feed: https://verifymcp.io/servers/io-sablebolt-swaps/api.xml
- Changelog JSON feed: https://verifymcp.io/servers/io-sablebolt-swaps/api.json
- HTML version of this page: https://verifymcp.io/servers/io-sablebolt-swaps/api