BlockVectra: multi-chain RPC & Data API
Keyless multi-chain EVM JSON-RPC, indexed Data API, docs, CU pricing and status. API key optional.
Connect it
Settings → Connectors → Add custom connector
URL: https://docs.blockvectra.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://docs.blockvectra.com/mcp{
"mcpServers": {
"docs": {
"url": "https://docs.blockvectra.com/mcp",
"headers": {
"x-api-key": "<YOUR_X_API_KEY>"
}
}
}
}claude mcp add --transport http docs https://docs.blockvectra.com/mcp --header "x-api-key: <value>"{
"servers": {
"docs": {
"type": "http",
"url": "https://docs.blockvectra.com/mcp",
"headers": {
"x-api-key": "<YOUR_X_API_KEY>"
}
}
}
}15 tools, verified live
read_docread-onlyRead the raw Markdown content of a documentation page from /md/{lang}/{path}.md. Path must be an internal relative path (e.g. 'quickstart', 'guides/ai-agents', 'api/json-rpc', 'chains').
search_docsread-onlyFind documentation by topic or task keywords when the page path is unknown. Searches page titles, navigation titles, relative paths, and page summaries, returning titles, relative paths, and summaries. Read a result with read_doc using its path and the same lang; use read_doc directly for a known path or list_docs to browse the documentation catalog. Omit lang for English; limit is 1-20 (default 5
list_chainsread-onlyFetch supported blockchain networks and static parameters from `GET /v1/chains`. `methods.allow` and `methods.deny` support wildcard patterns where `deny` takes precedence over `allow`. `state_window_blocks` indicates the historical state window in blocks for state queries (null when full history is available); `max_logs_block_range` limits `eth_getLogs`: the range is inclusive, so `toBlock - from
get_statusread-onlyLive operational status and network health from `GET /v1/status`. Confirm chain `status` is 'ok' before calling methods; see `list_chains` for static chain capabilities and method policies. For Data API, `data_status` can be 'ok', 'syncing' (queryable and billed normally, but indexing is lagging behind latest block time), or 'unavailable'.
get_pricingread-onlyLive prices and plan limits from `GET /v1/plans`. Use before estimating cost or when asked about free credits, rate limits or per-method prices. Units: 1 billing unit = `pricing.cu_per_unit` CU; 1 USD buys `pricing.units_per_usd` units. `method_weights` includes JSON-RPC and Data API CU per call, `push.log` / `push.native_transfer` / `push.token_transfer` per delivered data event, `push.history` p
estimate_usageread-onlyCalculate projected daily and billing cycle Compute Units (CU) and USD costs for planned call volumes across one or more methods, factoring in method weights and free credit allowances from /v1/plans. Available without an API key. Estimates the API key count for planned traffic under key_defaults. Use this tool for volume budget calculations and capacity planning. For looking up raw system pricing
how_to_get_api_keyread-onlyGet instructions and endpoints for obtaining a BlockVectra API key via preferred programmatic SIWE sign-up or browser handoff, plus authentication header and URL formats for JSON-RPC and Data API.
get_method_inforead-onlyInspect a single method's chain-by-chain availability, Compute Unit (CU) weight, price per million calls, and documentation link. Check JSON-RPC method policy and Data API dataset coverage separately. JSON-RPC follows methods.allow and methods.deny from /v1/chains. Data API coverage follows data_features in GET /v1/status, with data enabled in /v1/chains. Pricing comes from /v1/plans. For the full
explain_errorread-onlyLookup error code, reason, or HTTP status in the official error reference catalog. Returns meaning, billing implications (whether the call was billed), retryability, retry delay, recommended agent action, and documentation URL.
list_docsread-onlyList all available documentation pages, relative paths, and titles from the static documentation index, including webhook push subscriptions, signatures, delivery and billing. Available without an API key.
rpc_callread-onlyExecute a read-only JSON-RPC 2.0 method on a specified blockchain network using your BlockVectra API key, or via the keyless public endpoint if available on the chain. Chain slugs look like 'base_mainnet'; take them from list_chains. Without a key the call goes to the keyless endpoint `/v1/{chain}/public` (the chain's `public.url` in list_chains), which only serves the methods listed in that chain
data_api_getread-onlyQuery the BlockVectra Data API for a specified chain and path using your BlockVectra API key. For endpoint schemas and parameter specifications, see the OpenAPI contract at https://docs.blockvectra.com/openapi/data.yaml. Requires the 'x-api-key' or 'Authorization: Bearer <key>' HTTP header in your MCP client configuration (keys must not be passed in tool parameters or chat). Returns the HTTP statu
get_accountread-onlyGet the API key's own balance, Compute Units (CU), rate limits, and key parameters from GET /v1/account using your BlockVectra API key. Free and unbilled. Requires the 'x-api-key' or 'Authorization: Bearer <key>' HTTP header in your MCP client configuration (never pass keys in tool parameters or chat). Returns the account's key_id, plan, balance_units, balance_cu, balance_as_of_age_ms, and key lim
get_deposit_addressread-onlyRequires an API key. Get your account's dedicated on-chain deposit address and open networks to top up balance; only transfer to the listed networks and tokens.
send_raw_transactioncan modifyBroadcast a signed raw transaction to a specified blockchain network via eth_sendRawTransaction. Requires the 'x-api-key' or 'Authorization: Bearer <key>' HTTP header in your MCP client configuration for full access, or uses the keyless public endpoint if permitted on the chain (keys must not be passed in tool parameters or chat). Returns the transaction hash or JSON-RPC error.
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