Multi-chain JSON-RPC + indexed Data API for developers and AI agents. WebSocket, webhooks, wallet-based onboarding. Public per-method pricing.
Joined October 2026
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No signup, no key. Every network has a public endpoint:
curl --json '{"jsonrpc":"2.0","id":1,"method":"eth_chainId","params":[]}' api.blockvectra.com/v1/robin…
Wallet JSON-RPC methods only. Create a key when you need more.
docs.blockvectra.com/en/quic…
Hermes connects directly to BlockVectra's hosted MCP endpoint for docs and chain discovery. Search by task, then read the page you need. These tools work without an API key.
Setup: docs.blockvectra.com/en/guid…
Before an agent reads balances or logs, check eth_chainId against the intended network. Stop on a mismatch.
We’ve added this to the first-call instructions on our Agents page:
blockvectra.com/en/agents/?r…
Use the getLogs sample to scan fixed block ranges: validate HTTP status, the JSON-RPC envelope, and the result array, then save the chunk to a local checkpoint. A failed range stops the run without moving the checkpoint. docs.blockvectra.com/en/guid…
AI assistant for BlockVectra: Smithery’s MCP proxy connections stop Oct 31; its public registry stays. Using BlockVectra via a proxy? Connect directly to docs.blockvectra.com/mcp. No API key needed to connect or read docs. Notice: smithery.ai/future
eth_getLogs: HTTP 200 can still carry a JSON-RPC error. Before advancing an agent's cursor, validate the envelope and result array. Split inclusive block ranges using the chain's published limit. Guide: docs.blockvectra.com/en/guid…
AI agents can get a BlockVectra API key without a browser:
1. Request a SIWE challenge.
2. Sign locally.
3. Log in, then create a key.
Keep private keys out of chat. Full HTTP flow:
docs.blockvectra.com/en/guid…
Agent faucet checklist:
1. Save the tx_hash from the 202 response.
2. Check the receipt on the same network: status 0x1, with block hash and number.
3. On timeout, keep it unconfirmed and avoid resubmitting.
Robinhood testnet: docs.blockvectra.com/en/guid…
Building an agent on Robinhood Chain?
Testnet: 46630 (0xb626)
Mainnet: 4663 (0x1237)
Check eth_chainId before other RPC calls.
Our testnet starter includes that check, RPC setup and faucet links:
docs.blockvectra.com/en/guid…
AI agents can create a BlockVectra account and API key with a wallet signature. Use the HTTP signup flow, then set x-api-key for authenticated calls.
docs.blockvectra.com/en/guid…
Through BlockVectra MCP, verify Robinhood Chain mainnet: eth_chainId must match catalog chain_id 4663; then query eth_blockNumber for the latest block.
docs.blockvectra.com/en/guid…
AI agents are first-class users.
Robinhood Chain testnet: start with keyless RPC. Faucet claims require x-api-key; HTTP 202 means accepted. Check the transaction receipt for on-chain confirmation.
Starter for developers and AI agents:
docs.blockvectra.com/en/guid…
eth_getLogs span = toBlock - fromBlock + 1; it must not exceed max_logs_block_range. GET /v1/chains shows 1,000 on all 9 chains.
Split backfills to avoid logs_range_too_large. Developers and AI agents can read the cap at runtime.
docs.blockvectra.com/en/guid…
@BlockVectra
Four HTTP calls get an API key with no browser: SIWE challenge, wallet signature, login, POST /keys. The first login creates the account, no card needed.
The same flow works for developers and AI agents, CI jobs and scripts.
docs.blockvectra.com/en/guid…
HyperEVM eth_getLogs: a 30-day backfill is ~2.592M blocks.
1,000-block window: 2,592 calls
50-block window: 51,840
10-block window: 259,200
Estimates; official limits checked 2026-10-12. Runnable chunking script (MIT):
github.com/blockvectra/hyper…
Guide: docs.blockvectra.com/en/guid…
claude mcp add --transport http blockvectra-docs docs.blockvectra.com/mcp
One line gives developers and AI agents 15 tools for chain status, pricing, docs and RPC calls. 10 of them never need an API key.
docs.blockvectra.com/en/guid…
Robinhood Chain Testnet faucet: one claim per account and per address every 24 hours. You need a BlockVectra API key, which is free to create.
docs.blockvectra.com/en/guid…
BlockVectra is on Product Hunt today. One call you can run with no account or key:
curl --json '{"jsonrpc":"2.0","id":1,"method":"eth_chainId","params":[]}' api.blockvectra.com/v1/robin…
producthunt.com/products/blo…
One API key, 9 networks. Use JSON-RPC across Arbitrum One, Base, BNB Smart Chain, Ethereum, HyperEVM, Polygon and Robinhood Chain, plus Ethereum Sepolia and Robinhood Chain Testnet.
docs.blockvectra.com/en/chai…
1/3 BlockVectra: one API key for multi-chain JSON-RPC and indexed Data APIs where available. Build wallets, dashboards and agents with documented chain capabilities and public method pricing.
blockvectra.com/en/?ref=x-la…
2/3 Start with a working request. Discover supported chains, check each chain's method policy, and make your first JSON-RPC or Data API call.
docs.blockvectra.com/en/quic…
3/3 Building an AI agent? Use our keyless docs MCP to discover capabilities and pricing. Create an account and API key programmatically with an Ethereum wallet signature.
docs.blockvectra.com/en/guid…