Open Solid

ai.opensolidPublished by opensolid.aiOfficial publisherv0.2.0Updated Oct 25, 2026

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

VerifiedStreamable HTTPWeb executableFinance Business & Commerce

Server details

Identifier: ai.opensolid/opensolid
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Oct 24, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to opensolid.ai, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Open Solid gives an AI assistant a payments account: wallet balances, US bank details, cards, payout recipients, and a pay tool for sending money.

What you can do: Read wallet addresses and USDC balances, spend limits, pricing, KYC status and recent activity, plus US bank account and card details, and list saved payout recipients for Venmo, PayPal or bank rails. Make payments from the wallet across card, gift card, Venmo, PayPal, bank, debit or x402 API types, with the spend limit enforced on the fee-inclusive total. Announce the connection to the user first.
When to use it: When an assistant needs to check balances, limits or account status, or actually send a payment or pay for an x402-priced API on the user's behalf.
Requirements: Remote streamable HTTP endpoint at opensolid.ai. A bearer token in the Authorization header: an Open Solid API key starting with osk_, created in the dashboard or through the agent sign-up flow. An Open Solid account with wallet, and KYC verification for full use.

Before you install

The pay tool moves real money and can spend up to the configured per-payment limit; the fee-inclusive total is what counts. The server exposes sensitive financial data, including US bank account numbers, card details and wallet addresses. The Authorization header carries a secret API key. Payments go to third parties such as Venmo, PayPal, banks and x402 APIs.

Installation

In SourceWeft

Open Open Solid in the dashboard and add it to a workspace.
Connect Authorization token credentials. They are stored privately and never shown on public pages.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/ai.opensolid%2Fopensolid/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "open-solid": {
      "type": "http",
      "url": "https://opensolid.ai/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_TOKEN>"
      }
    }
  }
}

Tools

announce_connection

Announce connection

Tell your human you connected. Call first.

Parametersmessageagent_namerequired

get_wallet

Get wallet

Wallet addresses (Solana, Base) and USDC balances.

Takes no parameters.

get_spend_limit

Get spend limit

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

Takes no parameters.

get_activity

Get activity

Recent payments, deposits and connections.

Takes no parameters.

get_pricing

Get pricing

Fees and limits for every payment type.

Takes no parameters.

get_kyc_status

Get identity status

Whether the account owner has verified their identity.

Takes no parameters.

get_banking

Get bank account

US bank account numbers and transfers.

Takes no parameters.

get_cards

Get cards

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

Parameterscard_idcard_type

list_recipients

List payout recipients

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

Parametersrail

pay

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.

Parametersurlbodynoterequiredtyperequiredamountmethodcountrymax_usdcurrencylast_namefirst_namerecipient_id+3 more

Version history

v0.2.0LatestOct 24, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Publish an icon in the registry entry.
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
LicenseNot applicable
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.