MCP server

Doichain

io.github.neubuot/doichain

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Proof of existence, names and chain data of the Doichain blockchain for AI agents

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

13

Token cost

About 2,862 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http doichain https://doi-api.sendlabs.de/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.doichain]
url = "https://doi-api.sendlabs.de/mcp"

Gemini CLI

{"mcpServers":{"doichain":{"httpUrl":"https://doi-api.sendlabs.de/mcp"}}}

Cursor

{"mcpServers":{"doichain":{"url":"https://doi-api.sendlabs.de/mcp"}}}

VS Code

{"servers":{"doichain":{"type":"http","url":"https://doi-api.sendlabs.de/mcp"}}}

Antigravity

agy mcp add doichain https://doi-api.sendlabs.de/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"doichain","server_url":"https://doi-api.sendlabs.de/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"doichain","server_url":"https://doi-api.sendlabs.de/mcp"}

Tools

• anchor_proof ~583 tokens
  Anchor a SHA-256 hash on the Doichain as a tamper-evident timestamp (proof of existence, name poe/<sha256>). Free for users, limited per IP address and day (see get_anchoring_quota). Confirms with the next block, usually within 10 minutes, then check_proof returns block height and time. If t
• check_name_expiry ~239 tokens
  Check up to 25 names at once: status (active, expiring_soon, expired, not_registered), blocks left, an estimated expiry date for active names (from the measured block interval) and the real expiry date for expired names. Names expire 36,000 blocks after their last update and are renewed by u
• check_proof ~277 tokens
  Check whether a SHA-256 hash is anchored on the Doichain (name poe/<sha256>) and since when. Returns status (confirmed, pending, expired, unknown) and at the top level block height, block time, transaction and links of the first anchoring, which is the proof time. If the name was updated lat
• get_address ~219 tokens
  Confirmed and unconfirmed balance of a Doichain address in DOI, optionally with its most recent transactions. Invalid addresses return an error with the reason.
• get_anchoring_quota ~118 tokens
  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 from their own servers, so their users share one quota. Callers that send their own API key in the X-API-Key header have no quota.
• get_block ~118 tokens
  Header data of a block by height or hash: time, confirmations, number of transactions and the first 50 transaction IDs.
• get_chain_status ~100 tokens
  Current state of the Doichain network as seen by the node behind this server: block height, sync state, time of the last block, fork check, node version, peers, mempool size and whether public anchoring is available.
• get_name_history ~168 tokens
  All registrations and updates of a name, newest first: block height, transaction, owner address and the value at that time. Shows who held a name when, and every value it ever had.
• get_transaction ~118 tokens
  A transaction with confirmations, block time, outputs (amount in DOI and address) and any name operation (name_doi, name_update, ...) it contains.
• hash_text ~183 tokens
  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 text is sent to the server but not stored or logged. For files and for confidential texts compute the hash locally instead (sha256sum file, or Get-FileHash
• lookup_name ~153 tokens
  Read the current value, owner address and expiry of a Doichain name. Unregistered names come back with exists false and status not_registered (the name is free). Expired names have status expired and the real expiry date.
• search_names ~344 tokens
  List names that start with a prefix, in the node's order (shorter names first, then byte order). Lists only active names unless include_expired is true. Expired names (for example old poe/ proofs) stay in the chain history and are listed with include_expired. Page through large results with
• verify_message ~242 tokens
  Check whether a message was signed with the private key of a Doichain address (signmessage format). Only legacy addresses (M... or N...) can sign messages, bech32 addresses (dc1q...) are not supported. Useful to confirm that a statement really comes from the holder of an address.

Browse

• GitHub tools
• GitHub and code hosting
• Crypto and blockchains

Related MCP servers

• X402 Endpoints
  x402 paid API tools for AI agents on Base: EU/global registries, crypto, wallet & agent trust.
• Citiview Agent Market
  186 pay-per-call tools: search, LLMs, UK KYB, FRED, Census, maps, crypto. x402 USDC.
• Akashi Notari
  Proof of existence for files: anchor a SHA-256 hash on Base, look up proofs. Paid with x402.
• ChainRay
  Multi-chain on-chain intelligence for AI agents through a public remote MCP server.
• Automaton Token Safety
  Base L2 token safety for AI agents: honeypot scans, swap simulation, approval and liquidity risk.
• Avalanche AVAX MCP
  Search and retrieve Avalanche blockchain documentation for building on AVAX.
• Robyn — Gasless Cross-Chain for AI Agents
  Gasless cross-chain for AI agents: 25 nodes incl. Solana & native Bitcoin. One signature, no gas.
• SwiftNodes RPC
  Blockchain RPC for 125+ chains: endpoints, method support, probing and RPC calls with your key.

Badge for your README

[![AptLynx](https://aptlynx.net/badge/io.github.neubuot/doichain.svg)](https://aptlynx.net/servers/io.github.neubuot/doichain)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents