The Doichain MCP server,
connected in one click.
Proof of existence, names and chain data of the Doichain blockchain for AI agents. Connect the official Doichain MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Doichain to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http doichain https://doi-api.sendlabs.de/mcpRun in your terminal, then restart Claude Code.
Doichain · https://doi-api.sendlabs.de/mcp
What your AI can do with Doichain
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “get_chain_status”: Current state of the Doichain network as seen by the node behind this server: block height, sync state, time of the last block, fork che.”
“Use “hash_text”: Compute the SHA-256 digest of a short text (UTF-8) on the server, for example to anchor a statement or a message with anchor_proof. The.”
“Use “check_proof”: Check whether a SHA-256 hash is anchored on the Doichain (name poe/<sha256>) and since when. Returns status (confirmed, pending, expired.”
“Use “anchor_proof”: Anchor a SHA-256 hash on the Doichain as a tamper-evident timestamp (proof of existence, name poe/<sha256>). Free for users, limited per.”
How secure is the Doichain MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Doichain holds up.
Official endpoint
Operated by Doichain (sendlabs.de) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Doichain adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Doichain
Choose Doichain in the gate directory. No sign-in needed.
Use it anywhere
Doichain's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Doichain exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
get_chain_status — Current state of the Doichain network as seen by the node behind this server: block height, sync state, time of the last block, fork che
hash_text — Compute the SHA-256 digest of a short text (UTF-8) on the server, for example to anchor a statement or a message with anchor_proof. The
check_proof — Check whether a SHA-256 hash is anchored on the Doichain (name poe/<sha256>) and since when. Returns status (confirmed, pending, expired
anchor_proof — Anchor a SHA-256 hash on the Doichain as a tamper-evident timestamp (proof of existence, name poe/<sha256>). Free for users, limited per
get_anchoring_quota — How many proofs can still be anchored today (UTC day) within the free public quota for the caller's IP address. Hosted chat apps connect
lookup_name — Read the current value, owner address and expiry of a Doichain name. Unregistered names come back with exists false and status not_regis
get_name_history — All registrations and updates of a name, newest first: block height, transaction, owner address and the value at that time. Shows who he
check_name_expiry — Check up to 25 names at once: status (active, expiring_soon, expired, not_registered), blocks left, an estimated expiry date for active
+ 5 more tools once connected
Who runs the Doichain MCP server?
The Doichain MCP server at a glance
https://doi-api.sendlabs.de/mcpQuestions, answered
Is there an official Doichain MCP server?
Yes — Doichain operates its own remote MCP server at doi-api.sendlabs.de. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Doichain to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Doichain in the directory. No account or sign-in is needed. From then on, Doichain's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Doichain runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Doichain MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Doichain in minutes. No credit card required.
Connect more than just Doichain
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Doichain in: Claude · Claude Code · ChatGPT · Cursor · VS Code