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BlockVectra: multi-chain RPC & Data API

R0· no sign-in

Keyless multi-chain EVM JSON-RPC, indexed Data API, docs, CU pricing and status. API key optional.

v1.2.0 · active · repository · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality78good
Trust99of 100
Uptime, 30 days93%
Latency p50211 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "docs": {
      "type": "http",
      "url": "https://docs.blockvectra.com/mcp",
      "headers": {
        "x-api-key": "${X_API_KEY}"
      }
    }
  }
}
claude mcp add --transport http docs https://docs.blockvectra.com/mcp --header "x-api-key: ${X_API_KEY}"
[mcp_servers.docs]
url = "https://docs.blockvectra.com/mcp"
env_http_headers = { "x-api-key" = "X_API_KEY" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "docs": {
      "type": "remote",
      "url": "https://docs.blockvectra.com/mcp",
      "enabled": true,
      "headers": {
        "x-api-key": "{env:X_API_KEY}"
      }
    }
  }
}
{
  "mcpServers": {
    "docs": {
      "type": "http",
      "url": "https://docs.blockvectra.com/mcp",
      "headers": {
        "x-api-key": "${X_API_KEY}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=docs&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vZG9jcy5ibG9ja3ZlY3RyYS5jb20vbWNwIiwiaGVhZGVycyI6eyJ4LWFwaS1rZXkiOiIke1hfQVBJX0tFWX0ifX0%3D"
}
{
  "servers": {
    "docs": {
      "type": "http",
      "url": "https://docs.blockvectra.com/mcp",
      "headers": {
        "x-api-key": "${X_API_KEY}"
      }
    }
  }
}
{
  "mcpServers": {
    "docs": {
      "httpUrl": "https://docs.blockvectra.com/mcp",
      "headers": {
        "x-api-key": "${X_API_KEY}"
      }
    }
  }
}
extensions:
  "docs":
    enabled: true
    name: "docs"
    type: streamable_http
    uri: "https://docs.blockvectra.com/mcp"
    headers:
      "x-api-key": "${X_API_KEY}"
    timeout: 300

Placeholders to fill from your own secret store: ${X_API_KEY}. The registry never accepts secret values.

Quality 78 / 100good

protocol100 · weight 25
  • pass
    protocol.modernsupports 2026-07-28 (server/discover)
  • pass
    protocol.statelessanswers without a session
  • pass
    protocol.transportstreamable HTTP
  • pass
    protocol.list_ttltool list is cacheable (ttlMs 300000)
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene86 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations15 of 15 tools declare readOnlyHint or destructiveHint
  • fail
    tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: list_chains (destructiveHint, idempotentHint); get_pricing (destructiveHint, idempotentHint); explain_error (destructiveHint, idempotentHint); …
  • pass
    tools.token_costabout 3,257 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability25 · weight 15
  • warn
    stability.changes73 tool changes in 30 days
  • fail
    stability.rug_pull8 tools kept their name but changed most of their description in 30 days; review before trusting them
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

15 tools, about 3,257 tokens to load them all · tool set a40d33894e13 · tools last changed 2026-10-19 · checked 2026-10-19 10:52 UTC

Tool changes

  • send_raw_transactionchangedoutput schema
  • get_deposit_addresschangedoutput schema
  • get_accountchangedoutput schema
  • data_api_getchangedoutput schema
  • rpc_callchangedoutput schema
  • list_docschangedoutput schema
  • explain_errorchangedoutput schema
  • get_method_infochangedoutput schema
  • how_to_get_api_keychangedoutput schema
  • estimate_usagechangedoutput schema

Showing the latest 10. Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 99 / 100

provenance100
liveness97
freshness100
hygiene100

+repository +namespace-matches-repo +dns-namespace +website +reachable +uptime-93% +updated-15d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://docs.blockvectra.com/mcp streamable-httpnoneyes93%211 ms2026-07-28, 2025-11-25, 2025-06-18, 2025-03-262026-10-19

Tools (15)

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 status and JSON response body.
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 tables, use get_pricing instead. For checking whether a single method is supported on a specific chain, use get_method_info instead. Accepts 'lines' array of {method, calls_per_day} or single 'method' and 'calls_per_day'.
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.
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 limits.
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.
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 system-wide pricing schedule and rate card, use get_pricing instead. For calculating projected bills for expected call volumes across methods, use estimate_usage instead.
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` per successful history request and `push.address_day` per billable address-day; resolve a method by exact match, then the longest prefix rule ending in `*`, then the `*` row (JSON-RPC only; Data API and push operations have no default). `free.*` values are in billing units; `key_defaults` are per-key CU/s and burst CU. `promo.ends_at` is a sign-up coverage cutoff, not the end of the offer. For a single method's chain support and documentation use get_method_info instead; for projecting cycle costs use estimate_usage instead.
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'.
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.
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 - fromBlock + 1` must not exceed it, otherwise the call fails with `logs_range_too_large`. `public` describes the keyless endpoint: `public.url` serves only the methods in `public.methods`, and `public.history_blocks` is how far back a block reference may reach on that endpoint (it does not add methods). Pass `chain` (a slug such as `base_mainnet`) to return only that chain.
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.
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').
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's `public.methods`. Write methods (such as 'eth_sendRawTransaction') are not supported in rpc_call; use 'send_raw_transaction' instead. Consult the Ethereum JSON-RPC specification (https://ethereum.org/en/developers/docs/apis/json-rpc/) and the BlockVectra method reference (https://docs.blockvectra.com/en/api/json-rpc/methods/). With a key, set the 'x-api-key' or 'Authorization: Bearer <key>' HTTP header in your MCP client configuration for full access (keys must not be passed in tool parameters or chat). Returns the raw JSON-RPC response from the server.
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). If no results match, try broader keywords or browse list_docs. Available without an API key.
send_raw_transactiondestructiveBroadcast 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.

Schemas: list_tools.

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Official server.json
{
  "name": "com.blockvectra/docs",
  "title": "BlockVectra: multi-chain RPC & Data API",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://docs.blockvectra.com/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "x-api-key",
          "isSecret": true,
          "description": "Optional BlockVectra API key. Without it the docs, chains, pricing and status tools and the public JSON-RPC endpoint still work."
        }
      ]
    }
  ],
  "version": "1.2.0",
  "repository": {
    "url": "https://github.com/blockvectra/mcp",
    "source": "github"
  },
  "websiteUrl": "https://blockvectra.com/en/agents/",
  "description": "Keyless multi-chain EVM JSON-RPC, indexed Data API, docs, CU pricing and status. API key optional."
}