Agents spend money. Most don't know how much, or why, until the session ends and the bill arrives.
Agentpay MCP server is a locally run integration for AI assistants that speak the Model Context Protocol. Agents spend money. Most don't know how much, or why, until the session ends and the bill arrives.
The server ships on npm as @romudille/agentpay-mcp, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.
Once Agentpay is connected, these are the calls the assistant has available:
url_reader — urlweb_search — querymarket_snapshot — —token_price — symbol (BTC, ETH, SOL…)gas_tracker — —fear_greed_index — limit (days of history, default 1)token_market_data — token_a, token_bwallet_balance — address, chain (ethereum/stellar)whale_activity — token, min_usd (default 100k)defi_tvl — protocol (optional, e.g. "uniswap")token_security — contract_address, chainopen_interest — symbol (BTC, ETH…)You will need 2 environment variables: AGENTPAY_BASE_KEY, AGENTPAY_MAX_SPEND. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
Plenty of developer tooling servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Agentpay's toolset — url_reader, web_search, market_snapshot and 11 more — is a fair guide to whether it matches your workflow. It is maintained by romudille-bit; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| url_reader | url |
| web_search | query |
| market_snapshot | — |
| token_price | symbol (BTC, ETH, SOL…) |
| gas_tracker | — |
| fear_greed_index | limit (days of history, default 1) |
| token_market_data | token_a, token_b |
| wallet_balance | address, chain (ethereum/stellar) |
| whale_activity | token, min_usd (default 100k) |
| defi_tvl | protocol (optional, e.g. "uniswap") |
| token_security | contract_address, chain |
| open_interest | symbol (BTC, ETH…) |
| orderbook_depth | symbol (e.g. ETHUSDT) |
| funding_rates | asset (optional) |
```json
{
"mcpServers": {
"agentpay": {
"command": "npx",
"args": ["-y", "@romudille/agentpay-mcp"]
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| AGENTPAY_BASE_KEY | Credential the server authenticates with. | Yes |
| AGENTPAY_MAX_SPEND | Configuration value read at startup. | Optional |
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