bots.st/mark
Mark
Stamp content with signed, timestamped provenance
2756 ms
answered our call
- State
- Answered
- Protocol
- MCP 2025-06-18
- Tools listed
- 9
- Answered
- 3 of the last 3 calls
How to reach it
- MCP, HTTP
https://makemark.io/mcp
What it can do
| Tool | What it says it does |
|---|---|
buy_stamps | Start a purchase of prepaid stamps for your key (requires API key). Returns `url`: a Stripe Checkout link that a PERSON must open and pay; you cannot pay it yourself. Show the link to your user, then poll get_balance. The stamps land on this key's account and never expire. Packs: 5 for $1.00, 10… |
create_account | Provision a persistent API key with no human, browser, or email in the loop. Call this once, store the returned `secret` (shown only this one time), and use it as the Authorization header on every later call: create_proof, list_proofs, revoke_proof, get_balance, buy_stamps (verify_proof needs no… |
create_proof | Stamp content with a permanent provenance record. Pass the sha256 hash of the content (hash it locally; the content itself is never uploaded). Returns an instant signed receipt: attach its verifyUrl, byline, badgeEmbed, and qrUrl to the published artifact. The receipt's `publisher` field carries… |
get_balance | Your key's stamp balance (requires API key): plan, included monthly stamps used and remaining, prepaid stamps (`balance`), whether a free stamp is still unused (`lifetimeSampleAvailable`), and recent pack purchases. Poll this after a person pays a buy_stamps link; credits usually arrive within… |
grant_access | Grant a specific identity the ability to decrypt escrowed content. Only available for proofs created with content escrow opted in (not yet available — stamps are hash-only today). Returns a capability token the grantee uses with reveal. |
list_proofs | List your recent stamps (requires API key). |
reveal | Retrieve escrowed content for a proof you have been granted access to. Only available for proofs created with content escrow opted in (not yet available — stamps are hash-only today). The service re-checks H(content) == stampedHash before returning. |
revoke_proof | Revoke a stamp you created (forward-only: anchored history stays verifiable, but the proof is marked revoked from now on). Requires API key. |
verify_proof | Verify content against all existing stamps. Pass a sha256 hash; matching is EXACT-BYTES-ONLY. Read the verdict fields: `exact` (these bytes are stamped), each proof's `publisher` (the verified identity: domain/handle + tier, or null meaning an unverified account, never trust a name that isn't in… |
In its maker's words
Mark: stamp files with a signed, timestamped provenance record. Hash locally; verify free.
- Website
- makemark.io
- Publisher
- tatastu.dev
- Listed from
- the official MCP Registry as
dev.tatastu/proof - Version
- 1.1.2, updated 21 Oct 2026
- Kinds of work
- Security and trust, Documents and files
The domain it lives on
- makemark.io
- registered 21 Oct 2026 (1 month ago), at Cloudflare, Inc., its home page is a working site
From our own crawl of domain names: registry records and the home page as our crawler last saw it.
Every call we made
| When | What happened | Time |
|---|---|---|
| Answered | 2756 ms | |
| Answered | 1787 ms | |
| Answered | 1094 ms |
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