Polymarket and Predict.fun historical tick data, plus backtest quotes and status, over MCP
Doichain is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
Proof of existence, names and chain data of the Doichain blockchain for AI agents
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http doichain-mcp https://doi-api.sendlabs.de/mcp
# 2 — ask your agent for something these tools do
# get_chain_status, hash_text, check_proof and 10 more
Doichain costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http doichain-mcp https://doi-api.sendlabs.de/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
13 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
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.
No parameter schema on file.
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 -Algorithm SHA256).
| Parameter | Type | Required | Notes |
|---|---|---|---|
| text | string | yes | Text to hash, encoded as UTF-8 exactly as given (whitespace and line breaks count), at most 40,000 characters |
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 later or registered again after it expired (possibly by someone else), that registration is reporte
| Parameter | Type | Required | Notes |
|---|---|---|---|
| sha256 | string | yes | SHA-256 digest of the document, 64 hexadecimal characters (a sha256: or 0x prefix is accepted) |
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 the hash is already anchored or pending, the existing proof is returned instead of creating a sec
| Parameter | Type | Required | Notes |
|---|---|---|---|
| sha256 | string | yes | SHA-256 digest of the document, 64 hexadecimal characters, computed from the actual file. Never guess it and never send the document |
| note | no | Optional public note (max 160 characters), stored on the blockchain forever. No personal data, no secrets | |
| filename | no | Optional public file name (max 80 characters), stored forever. Only set it when the user explicitly wants the name public | |
| reanchor_expired | boolean | no | Only set to true when an earlier proof of this hash has expired and the user explicitly wants an additional, later registration. The original anchoring stays the proof time. The new registration adds |
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.
No parameter schema on file.
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| name | string | yes | Full name including namespace, for example poe/<sha256>, d/example or id/alice |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| name | string | yes | Full name including namespace |
| limit | integer | no | Maximum number of entries, newest first |
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 updating them from the owning wallet.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| names | array | yes | Up to 25 full names, for example ['d/example', 'poe/<sha256>'] |
| warn_days | integer | no | Names expiring within this many days are flagged expiring_soon |
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 next_after until exhausted is true. Names and values are chosen by arbitrary users (name_untrust
| Parameter | Type | Required | Notes |
|---|---|---|---|
| prefix | string | yes | Name prefix, for example poe/, d/ or id/ |
| limit | integer | no | Maximum number of names |
| after | no | Paging cursor: pass next_after from the previous result unchanged | |
| include_expired | boolean | no | Also list expired names, for example proofs whose poe/ name has expired. Default false: active names only |
Header data of a block by height or hash: time, confirmations, number of transactions and the first 50 transaction IDs.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| block | yes | Block height (number) or block hash (64 hexadecimal characters) |
A transaction with confirmations, block time, outputs (amount in DOI and address) and any name operation (name_doi, name_update, ...) it contains.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| txid | string | yes | Transaction ID, 64 hexadecimal characters |
Confirmed and unconfirmed balance of a Doichain address in DOI, optionally with its most recent transactions. Invalid addresses return an error with the reason.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| address | string | yes | Doichain address (M... or N..., 6..., or bech32 dc1q...) |
| include_history | boolean | no | Also return the most recent transactions |
| history_limit | integer | no | Number of recent transactions when include_history is true |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| address | string | yes | Legacy Doichain address (M... or N...) that supposedly signed the message |
| message | string | yes | The exact signed text |
| signature | string | yes | Signature in Base64 |
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install Doichain or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
This listing is an address its publisher runs, and you connect to it directly — this marketplace is not in the path. The scanner reads packages and public source, and an address is neither: the repository linked on this page is where this record was collected from, not a copy of what the address serves, so it is not graded in its place. So there is no grade — not a withheld one, an unmeasured one.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 1.5.0.
No release note was published with this version.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish Doichain can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.