Blockchain RPC for 125+ chains: endpoints, method support, probing and RPC calls with your key.
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Call this server's tools from your browser. Nothing to install.
Optional. Bearer <your SwiftNodes API key> enables rpc_call and get_account. Free keys at https://swiftnodes.io
Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.
Tool list from our last check. Connect live to refresh it.
The caller's SwiftNodes plan, rate limits, requests used this month, and the IP/origin restrictions on the key in use. Needs 'Authorization: Bearer <key>'. Never returns key values.
This tool takes no arguments.
The caller's SwiftNodes plan, rate limits, requests used this month, and the IP/origin restrictions on the key in use. Needs 'Authorization: Bearer <key>'. Never returns key values.
No arguments.
{
"type": "object",
"properties": {}
}One chain in detail: chain ID, live status and block height, and the HTTP, WebSocket and archive endpoint URL templates.
| Argument | Type | Description |
|---|---|---|
| chain* | string | Chain slug, name or chain ID, e.g. "eth", "Base", "4663". |
{
"type": "object",
"required": [
"chain"
],
"properties": {
"chain": {
"type": "string",
"description": "Chain slug, name or chain ID, e.g. \"eth\", \"Base\", \"4663\"."
}
}
}Which JSON-RPC methods work on which chain, probed weekly through the customer request path. No args for the overview, or {method} for per-chain detail.
| Argument | Type | Description |
|---|---|---|
| method | string | e.g. 'trace_filter' or 'eth_getProof'. |
{
"type": "object",
"properties": {
"method": {
"type": "string",
"description": "e.g. 'trace_filter' or 'eth_getProof'."
}
}
}SwiftNodes plans: flat monthly price, HTTP and WebSocket rate limits. No compute units, no per-request billing.
No arguments.
{
"type": "object",
"properties": {}
}List every blockchain SwiftNodes serves (one API key for all): name, slug, chain ID, live status, and whether WebSocket and archive (?archive=1) are available.
| Argument | Type | Description |
|---|---|---|
| query | string | Optional name or slug filter, e.g. 'base' or 'zksync'. |
| evm_only | boolean | Only EVM chains. |
{
"type": "object",
"properties": {
"query": {
"type": "string",
"description": "Optional name or slug filter, e.g. 'base' or 'zksync'."
},
"evm_only": {
"type": "boolean",
"description": "Only EVM chains."
}
}
}Diagnose any public EVM JSON-RPC endpoint. With {url}: chain ID, block height, archive capability and latency. With {url, method, params}: makes that call and returns the result.
| Argument | Type | Description |
|---|---|---|
| url* | string | Public http(s) RPC URL. |
| method | string | |
| params | array |
{
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "Public http(s) RPC URL."
},
"method": {
"type": "string"
},
"params": {
"type": "array"
}
}
}Make a JSON-RPC call on any SwiftNodes chain with the caller's API key (sent to this MCP server as 'Authorization: Bearer <key>'). Counts against that key's plan like any other request. Read-only: methods that send or sign transactions are refused.
| Argument | Type | Description |
|---|---|---|
| chain* | string | Chain slug, e.g. "eth", "base", "robinhood". See list_chains. |
| method* | string | e.g. "eth_blockNumber". |
| params | array | Method params, default []. |
| archive | boolean | Route to archive upstreams (paid plans). |
{
"type": "object",
"required": [
"chain",
"method"
],
"properties": {
"chain": {
"type": "string",
"description": "Chain slug, e.g. \"eth\", \"base\", \"robinhood\". See list_chains."
},
"method": {
"type": "string",
"description": "e.g. \"eth_blockNumber\"."
},
"params": {
"type": "array",
"description": "Method params, default []."
},
"archive": {
"type": "boolean",
"description": "Route to archive upstreams (paid plans)."
}
}
}