# Open Solid (remote · opensolid.ai)

Banking for AI agents: wallet, US bank account, prepaid cards, and Venmo, PayPal, and bank payouts.

- Trust score: 64/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `opensolid.ai`: 64/100 (this document), [markdown](https://verifymcp.io/servers/ai-opensolid-opensolid/opensolid.md), [page](https://verifymcp.io/servers/ai-opensolid-opensolid/opensolid)

## Channel facts

- Endpoint: `https://opensolid.ai/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.2.0`

## 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 2026-11-05.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: this server exposes a tool marked destructive (pay) and its handshake is open, but we could not confirm whether a tool call is gated, so we do not assert it is callable unauthenticated.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - 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**: 55/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 433 tokens (~43/item across 10 items; 10 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 40/100
  - Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% 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.
  - All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.
  - An AI judge read all 11 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 Open Solid MCP server?

Open Solid is a hosted endpoint at https://opensolid.ai/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 ai-opensolid-opensolid 'https://opensolid.ai/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "ai-opensolid-opensolid": {
      "url": "https://opensolid.ai/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ai-opensolid-opensolid": {
      "type": "http",
      "url": "https://opensolid.ai/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.ai-opensolid-opensolid]
url = "https://opensolid.ai/mcp"
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add ai-opensolid-opensolid --url 'https://opensolid.ai/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ai-opensolid-opensolid:
    url: "https://opensolid.ai/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "ai-opensolid-opensolid": {
      "Transport": "http",
      "Url": "https://opensolid.ai/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add ai-opensolid-opensolid -t streamable-http -u 'https://opensolid.ai/mcp'
```

### Other

```json
{
  "mcpServers": {
    "ai-opensolid-opensolid": {
      "type": "http",
      "url": "https://opensolid.ai/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 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 62, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-28 (score 61, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-26 (score 60, +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.

### 2026-10-25 (score 59, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-24 (score 59)

First indexed and scored.

## MCP tools (10)

### `announce_connection` (~32 tokens)

Announce connection

Tell your human you connected. Call first.

Input parameters:

- `agent_name` (string, required)
- `message` (string)

### `get_wallet` (~21 tokens)

Get wallet

Wallet addresses (Solana, Base) and USDC balances.

### `get_spend_limit` (~21 tokens)

Get spend limit

The per-payment limit your human set. Read-only.

### `get_activity` (~15 tokens)

Get activity

Recent payments, deposits and connections.

### `get_pricing` (~17 tokens)

Get pricing

Fees and limits for every payment type.

### `get_kyc_status` (~20 tokens)

Get identity status

Whether the account owner has verified their identity.

### `get_banking` (~16 tokens)

Get bank account

US bank account numbers and transfers.

### `get_cards` (~37 tokens)

Get cards

Reloadable cards, or one card's details with card_id.

Input parameters:

- `card_id` (string)
- `card_type` (string)

### `list_recipients` (~31 tokens)

List payout recipients

Saved payout recipients for a rail: venmo, paypal or bank.

Input parameters:

- `rail` (string)

### `pay` (~199 tokens)

Make a payment

PAID. Make a payment from the wallet: type is usa_card, gift_card, venmo, paypal, bank, debit, or x402 (call any x402-priced API: give url, max_usd and optionally method and body; returns the API's response). Enforces the spend limit on the fee-inclusive total. Always include a one-sentence note.

Input parameters:

- `amount` (number)
- `body` (object)
- `country` (string)
- `currency` (string)
- `destination_id` (string)
- `first_name` (string)
- `idempotency_key` (string)
- `laso_server_id` (string)
- `last_name` (string)
- `max_usd` (number)
- `method` (string)
- `note` (string, required)
- `recipient_id` (string)
- `type` (string, required)
- `url` (string)

## Diagnostics

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

## Score history

- 2026-11-05: 64
- 2026-11-04: 64
- 2026-11-03: 63
- 2026-11-02: 63
- 2026-11-01: 63
- 2026-10-31: 62
- 2026-10-30: 62
- 2026-10-29: 61
- 2026-10-28: 61
- 2026-10-27: 60
- 2026-10-26: 60
- 2026-10-25: 59
- 2026-10-24: 59

## Common questions

### What is the Open Solid MCP server?

Open Solid is an MCP server listed in the public MCP registry as ai.opensolid/opensolid. Banking for AI agents: wallet, US bank account, prepaid cards, and Venmo, PayPal, and bank payouts. This page covers its hosted endpoint (https://opensolid.ai/mcp).

### Is the Open Solid MCP server safe to use?

Open Solid scores 64 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 Open Solid MCP server expose?

Open Solid exposes 10 tools: announce_connection, get_wallet, get_spend_limit, get_activity, get_pricing, and 5 more. Their descriptions and schemas cost roughly 409 tokens of context every time the server is loaded.

### Does the Open Solid MCP server require authentication?

No. We connected to Open Solid without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Open Solid MCP server still maintained?

Open Solid is still listed as active in the MCP registry. We last reached this channel on 5 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://opensolid.ai/mcp
- Authorisation metadata: https://opensolid.ai/.well-known/oauth-protected-resource/mcp
- Website: https://opensolid.ai/
- Changelog RSS feed: https://verifymcp.io/servers/ai-opensolid-opensolid/opensolid.xml
- Changelog JSON feed: https://verifymcp.io/servers/ai-opensolid-opensolid/opensolid.json
- HTML version of this page: https://verifymcp.io/servers/ai-opensolid-opensolid/opensolid