Blockfrost (BYOK)

Blockfrost (BYOK) — connector documentation

• MCP endpoint: https://byok-blockfrost.connectorbay.com/mcp
• REST API: POST https://byok-blockfrost.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://byok-blockfrost.connectorbay.com/openapi.json
• Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
• Authentication: your own Blockfrost Blockfrost project_id for the Cardano mainnet network, sent in the X-Upstream-Key header of every request (never stored, logged or cached)
• Health: https://byok-blockfrost.connectorbay.com/health · Tool schemas: https://byok-blockfrost.connectorbay.com/tools.json
• Publisher: Unify Dynamics LLC · connectorbay.com/byok-blockfrost · agent@connectorbay.com

What Blockfrost (BYOK) is for

Blockfrost (BYOK) lets an AI assistant read your own Blockfrost data through the Blockfrost API with a key you supply (Blockfrost project_id for the Cardano mainnet network). Read-only: 12 tools (get_latest_block, get_current_epoch, get_network_supply, get_address, get_address_totals, list_address_transactions, get_transaction, get_transaction_utxos, get_stake_account, get_asset, list_stake_pools, get_stake_pool). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to cardano-mainnet.blockfrost.io. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Blockfrost. Blockfrost and its logos are trademarks of their owners and are used only to say which service the connector works with.

Ask your assistant things like:

• "What is the latest Cardano block?"
• "Which Cardano epoch are we in and when does it end?"
• "What is the circulating ADA supply?"
• "What is the balance of this Cardano address?"
• "How much has this Cardano address received in total?"
• "What are the latest transactions of this Cardano address?"

What it does

• get_latest_block: Get the tip of the Cardano blockchain: height, hash, slot, epoch, transaction count, fees and confirmations.
• get_current_epoch: Get the current Cardano epoch: time span, block and transaction counts so far, fees and active stake.
• get_network_supply: Get Cardano supply figures (max, total, circulating, locked, treasury, reserves) and live and active stake, in lovelace.
• get_address: Get the current balance of a Cardano address (lovelace and native assets), its stake address and type.
• get_address_totals: Get lifetime totals for a Cardano address: amounts received and sent per asset, and transaction count.
• list_address_transactions: List transactions that touched a Cardano address (hash, block height and time), optionally within a block range.
• get_transaction: Get one Cardano transaction by hash: block, fees, output amounts, size, deposit and certificate counts.
• get_transaction_utxos: Get the inputs and outputs (addresses and amounts) of one Cardano transaction.
• get_stake_account: Get a Cardano stake account: registration, delegated pool, DRep, controlled amount, rewards and withdrawable amount (lovelace).
• get_asset: Get a Cardano native asset by policy id plus hex asset name: supply, fingerprint, mint count and registry metadata.
• list_stake_pools: List registered Cardano stake pools with ticker, name, stake, saturation, blocks minted, pledge and fees.
• get_stake_pool: Get one stake pool: stake, saturation, delegators, blocks minted, pledge, margin and fixed cost.

BYOK key

You bring your own Blockfrost Blockfrost project_id for the Cardano mainnet network (https://blockfrost.io/dashboard). Your assistant sends it in the X-Upstream-Key header with each request. ConnectorBay uses it for that one call only: it is never stored, logged or cached, never shown in an answer, and it is only sent to cardano-mainnet.blockfrost.io over https, with no redirects followed. Create a key with the fewest permissions the tools need (read-only if the provider offers it), and revoke it at the provider whenever you like.

Data sources

• https://docs.blockfrost.io/ (the API this connector calls, with a BYOK key)

Live from the Blockfrost API (cardano-mainnet.blockfrost.io) with a BYOK key; documentation: https://docs.blockfrost.io/. Endpoints checked against that documentation on 2026-10-16.

What it is not

Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Blockfrost. Blockfrost and its logos are trademarks of their owners and are used only to say which service the connector works with. It is read-only: it never creates, changes, sends or deletes anything in your Blockfrost account.

Built for: Worldwide. Languages: English.

Blockfrost (BYOK) — Privacy Policy

Effective 24 October 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What Blockfrost (BYOK) is. Blockfrost (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own Blockfrost data: Read Cardano blockchain data (blocks, epochs, addresses, transactions, stake pools, assets) with your own Blockfrost project key. You bring your own Blockfrost Blockfrost project_id for the Cardano mainnet network; the assistant sends it to us with each request.

BYOK key. The key you supply is used to make the one Blockfrost call you asked for. Our application does not store it, write it to a log, put it in a cache, or share it. It is sent only to cardano-mainnet.blockfrost.io, over https, and is removed from any text we return to you or your assistant. We do not follow redirects with your key. If Blockfrost rejects it, we say so without repeating it.

What we receive. The arguments of each tool call, the BYOK key (for that call only), the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant) and standard server logs. What Blockfrost receives. The request we make on your behalf, including the key and the arguments, under Blockfrost's own terms and privacy policy. Blockfrost acts at your direction and is the only recipient of the data of your request besides our hosting provider.

What we return. The answer Blockfrost gives for your request, trimmed to the fields the tool documents. We do not keep it: it is returned to your assistant and not stored, cached or used to train anything.

What we do not do. We do not build a profile, sell or share personal information, or keep your Blockfrost data. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting access logs (IP addresses, request paths and status codes) are kept for up to 30 days for security and abuse prevention; our application adds no request headers or bodies to them.

Sub-processors. Blockfrost (the API you call with a BYOK key, at your direction). Hosting: Vercel (United States regions).

Your rights. Because we store no personal data beyond short-lived logs, requests to access, correct or delete data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. Revoke your key at Blockfrost at any time to end all access.

Children. Blockfrost (BYOK) is a general-audience service operated by the adult using the assistant, under Blockfrost's own age rules.

Changes. We will post changes here with a new effective date.

Blockfrost (BYOK) — Terms of Service

Effective 24 October 2026. These terms govern use of the Blockfrost (BYOK) connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

1. The Service. Blockfrost (BYOK) provides: Read Cardano blockchain data (blocks, epochs, addresses, transactions, stake pools, assets) with your own Blockfrost project key. It is accessed through an AI assistant or directly over MCP or HTTP, and is read-only.
2. Your own key, your own account. You must use your own Blockfrost credentials and only access data you are allowed to access. Blockfrost's terms apply to your use of Blockfrost; you are responsible for complying with them, including any rate limits and permitted uses. Do not share a key you do not own.
3. Independent. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Blockfrost. Blockfrost and its logos are trademarks of their owners and are used only to say which service the connector works with.
4. No advice, no guarantees. Output is the data Blockfrost returns, lightly trimmed; it may be incomplete, delayed or changed by Blockfrost. Check important facts at the source.
5. Read-only. The Service does not create, change, send or delete anything in your Blockfrost account.
6. Acceptable use. Automated use within the published rate limits is welcome. Do not use the Service to access data you are not entitled to, to circumvent Blockfrost's controls, or to attack any system.
7. Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time; Blockfrost may change or end its API at any time.
8. Data. Our Privacy Policy describes what we process. In short: the BYOK key is used for the one call and not stored or logged.
9. Pro keys. Optional ConnectorBay Pro API keys are issued at our discretion and are separate from your Blockfrost key.
10. Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss arising from use of or reliance on the Service, including any action Blockfrost takes on your account. Our total liability is limited to US $100.
11. Governing law. California law; venue in San Mateo County, California.
12. Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/byok-blockfrost

Blockfrost (BYOK) support

Email agent@connectorbay.com. We answer within two business days.

• MCP endpoint: https://byok-blockfrost.connectorbay.com/mcp
• REST API: https://byok-blockfrost.connectorbay.com/openapi.json
• Live status: https://byok-blockfrost.connectorbay.com/health

When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. Blockfrost (BYOK) never asks for them.