bots.st/lemmaoracle
lemmaoracle
Retrieve verified ZK attributes from documents
1262 ms
answered our call
- State
- Answered
- Protocol
- MCP 2025-06-18
- Tools listed
- 5
- Answered
- 3 of the last 3 calls
How to reach it
- MCP, HTTP
https://mcp.lemma.workers.dev/mcpNeeds header Authorization - npm
npx -y @lemmaoracle/mcpReleased 21 Jul 2026, version 0.0.23Set LEMMA_API_KEY
What it can do
| Tool | What it says it does |
|---|---|
lemma_get_circuit | Retrieve a zero-knowledge proof circuit by its circuitId via GET /v1/circuits/{circuitId}. A circuit defines the constraints that proofs must satisfy and binds to a single schema. Returns CircuitMeta { circuitId, schema, description?, inputs?, verifier?: { type: 'onchain'|'offchain', address?… |
lemma_get_generator | Retrieve a Lemma document generator by generatorId via GET /v1/doc-generators/{generatorId}. A generator describes how a class of source documents is produced (e.g., what fields a 'KYC-v2' issuer must populate). Returns GeneratorMeta { generatorId, schema, description?, language?, source?: { type… |
lemma_get_proof_status | Get the verification status of a proof. NOTE: the v2 API does not yet expose a dedicated GET /v1/proofs/{id} endpoint, so this tool internally calls POST /v1/verified-attributes/query filtered by docHash (treating the verificationId returned from lemma_submit_proof as a docHash filter). Returns {… |
lemma_get_schema | Retrieve a Lemma schema by its ID via GET /v1/schemas/{id}. A schema declares how documents of a given type are interpreted and normalized. Returns SchemaMeta { id, description? } with additionalProperties open — implementations commonly include a `normalize` artifact (WASM that maps raw documents… |
lemma_query_verified_attributes | Query cryptographically verified attributes from Lemma. Use this as the primary tool for finding documents whose attributes match given conditions (e.g., "subject's birthYear lt 2008"). Returns { results: Array<{ docHash, schema, issuerId, subjectId, attributes, isVerified, proof?: { status… |
In its maker's words
Verifiable provenance for AI agents — ZK proofs over confidential documents, no plaintext exposure.
- Website
- lemma.frame00.com
- Source
- github.com/lemmaoracle/lemma
- Publisher
- lemmaoracle
- Listed from
- the official MCP Registry as
io.github.lemmaoracle/mcp - Version
- 0.0.17, updated 18 May 2026
- Kinds of work
- Security and trust, Documents and files, AI models and agent tools
The domain it lives on
- frame00.com
- registered 12 Aug 2015 (11 years ago), at Amazon Registrar, 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 | 1262 ms | |
| Answered | 1509 ms | |
| Answered | 619 ms |
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