Mnemo Protocol

Mnemo Protocol provides an embedding-vector provenance and verification API that lets developers embed watermarks into vectors and later verify their origin. It supports pay-per-verify payments via x402 on Base or MPP on Tempo, offers SDKs, and targets use cases like RAG, fraud detection, threat intelligence, and regulated AI. The service is hosted at api.trymnemo.com and documented with OpenAPI, SDKs, and detailed agent protocols.

Mnemo Protocol publishes 2 API contracts indexed on the APIs.io network: Namespace API and Objects API. Tagged areas include Artificial Intelligence, Embeddings, Verification, Vector Provenance, and Payments.

The Mnemo Protocol catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Mnemo Protocol’s developer surface includes authentication, getting-started guide, API reference, documentation, pricing, and 20 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

48.6/100 developing Agent 42/100 agent native Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serveFree trial⚡ Free to try

1 published contract 2 Agent Skills

Artificial Intelligence Embeddings VerificationVector ProvenancePayments

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 48.6/100 · developing

Contract Quality 14.7 / 21

Developer Ergonomics 8.8 / 17

Access Clarity 10.5 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 2.4 / 15

Agent readiness — 42/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too Ask about this →

5 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →
Developer Ergonomics scores 51.8 — up to +9.6 composite points Ask about this →
Contract Governance scores 22.0 — up to +9.4 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/trymnemo-com/apis.yml: open an issue on github.com/api-evangelist/trymnemo-com to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Mnemo Protocol Namespace API

Accountless, short-lived namespaces authenticated by a capability (X-Mnemo-Capability), and optional human-assisted promotion to an account.

Mnemo Protocol Objects API

Embed (watermark and register) embedding vectors you supply, verify them against your own registered objects, and read their verified lineage.

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

trymnemo-com-create-namespace

AGENT SKILL

trymnemo-com-embed-and-verify

AGENT SKILL

Mnemo Protocol API pricing

Prices published by Mnemo Protocol, read 2026-11-12 from www.trymnemo.com/pricing.

Plan	Price
Free Trial	$0 for 30 days
Starter	$49/month
Growth	$299/month
Scale	$1,999/month
Enterprise	Contact sales

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Mnemo Protocol Plans Pricing

5 plans

PLANS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Trymnemo Com Context

25 classes · 103 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Mnemo Protocol API Rules

64 rules · 55 error-severity 5 warn-severity 4 info-severity

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

EmbedRequest

6 properties

JSON SCHEMA

EmbedResponse

9 properties

JSON SCHEMA

LineageResponse

7 properties

JSON SCHEMA

NamespaceCreated

12 properties

JSON SCHEMA

NamespaceStatus

16 properties

JSON SCHEMA

VerifyResponse

6 properties

JSON SCHEMA

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Mnemo Protocol Authentication

2 schemes

SECURITY

Mnemo Protocol Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

Mnemo Protocol Agentic Access

7 operations · 5 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Idempotency

Conventions

ErrorCatalog

Conformance

Scroll for all 8

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: trymnemo-com
name: Mnemo Protocol
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium (free trial) · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://www.trymnemo.com/opengraph-image?v=2026-10-14
description: Mnemo Protocol provides an embedding-vector provenance and verification API that lets developers embed watermarks
  into vectors and later verify their origin. It supports pay-per-verify payments via x402 on Base or MPP on Tempo, offers
  SDKs, and targets use cases like RAG, fraud detection, threat intelligence, and regulated AI. The service is hosted at api.trymnemo.com
  and documented with OpenAPI, SDKs, and detailed agent protocols.
url: https://artifacts.apis.io/trymnemo-com/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-12 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-12'
modified: '2026-11-12'
tags:
- Artificial Intelligence
- Embeddings
- Verification
- Vector Provenance
- Payments
tags_raw:
- AI
- Embeddings
- Verification
- Vector Provenance
- Payments
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/trymnemo-com-agentic-access.yml
- type: Plans
  url: plans/trymnemo-com-plans-pricing.yml
- type: Spectral
  url: rules/trymnemo-com-rules.yml
- type: JSONLD
  url: json-ld/trymnemo-com-context.jsonld
- type: Vocabulary
  url: vocabulary/trymnemo-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/trymnemo-com-data-model.yml
- type: Idempotency
  url: conventions/trymnemo-com-conventions.yml
- type: Conventions
  url: conventions/trymnemo-com-conventions.yml
- type: Authentication
  url: authentication/trymnemo-com-authentication.yml
- type: ErrorCatalog
  url: errors/trymnemo-com-problem-types.yml
- type: Conformance
  url: conformance/trymnemo-com-conformance.yml
- type: LLMsTxt
  url: llms/trymnemo-com-llms.txt
- type: Hosts
  url: hosts/trymnemo-com-hosts.yml
- type: Vendors
  url: vendors/trymnemo-com-vendors.yml
- type: Login
  url: https://www.trymnemo.com/login
- type: GettingStarted
  url: https://www.trymnemo.com/agents
- type: DeveloperPortal
  url: https://api.trymnemo.com</span
- type: APIReference
  url: https://www.trymnemo.com/docs
- type: DomainSecurity
  url: security/trymnemo-com-domain-security.yml
- type: Website
  url: https://www.trymnemo.com/
- type: Documentation
  url: https://www.trymnemo.com/agent-protocol.md
- type: Pricing
  url: https://www.trymnemo.com/pricing
- type: TermsOfService
  url: https://www.trymnemo.com/terms
- type: PrivacyPolicy
  url: https://www.trymnemo.com/privacy
apis:
- aid: trymnemo-com:trymnemo-com-namespace-api
  name: Mnemo Protocol Namespace API
  description: Accountless, short-lived namespaces authenticated by a capability (X-Mnemo-Capability), and optional human-assisted
    promotion to an account.
  humanURL: https://www.trymnemo.com/agent-protocol.md
  baseURL: https://api.trymnemo.com
  tags:
  - Namespace
  properties:
  - type: OpenAPI
    url: openapi/trymnemo-com-namespace-api-openapi.yml
  - type: JSONSchema
    url: json-schema/trymnemo-com-namespace-status-schema.json
  - type: JSONSchema
    url: json-schema/trymnemo-com-verify-response-schema.json
  - type: JSONSchema
    url: json-schema/trymnemo-com-embed-response-schema.json
  - type: JSONSchema
    url: json-schema/trymnemo-com-namespace-created-schema.json
  - type: JSONSchema
    url: json-schema/trymnemo-com-lineage-response-schema.json
  - type: JSONSchema
    url: json-schema/trymnemo-com-embed-request-schema.json
- aid: trymnemo-com:trymnemo-com-objects-api
  name: Mnemo Protocol Objects API
  description: Embed (watermark and register) embedding vectors you supply, verify them against your own registered objects,
    and read their verified lineage.
  humanURL: https://www.trymnemo.com/agent-protocol.md
  baseURL: https://api.trymnemo.com
  tags:
  - Objects
  properties:
  - type: OpenAPI
    url: openapi/trymnemo-com-objects-api-openapi.yml
  - type: JSONSchema
    url: json-schema/trymnemo-com-namespace-status-schema.json
  - type: JSONSchema
    url: json-schema/trymnemo-com-verify-response-schema.json
  - type: JSONSchema
    url: json-schema/trymnemo-com-embed-response-schema.json
  - type: JSONSchema
    url: json-schema/trymnemo-com-namespace-created-schema.json
  - type: JSONSchema
    url: json-schema/trymnemo-com-lineage-response-schema.json
  - type: JSONSchema
    url: json-schema/trymnemo-com-embed-request-schema.json
x-submission-notes: Embedding-vector provenance/verification API, x402 payments; OpenAPI 3.1 at /openapi.json
x-submission-probe: root 200, invented 404, openapi.json 200 (87KB json), agent-protocol.md 200; healthy
x-enrichment:
  date: '2026-11-12'
  status: enriched
  artifacts_added: 26
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Mnemo Protocol API — frequently asked questions

Does Mnemo Protocol have an API?

Yes. APIs.io lists 2 APIs from Mnemo Protocol, including Mnemo Protocol Namespace API and Mnemo Protocol Objects API.

Is there an OpenAPI specification for the Mnemo Protocol API?

Yes. APIs.io indexes 2 OpenAPI specifications for Mnemo Protocol, each linked for download from this page.

How do I authenticate with the Mnemo Protocol API?

Mnemo Protocol uses bearer-token authentication (2 schemes). The details are profiled on APIs.io as Mnemo Protocol Authentication.

How much does the Mnemo Protocol API cost?

Mnemo Protocol publishes its prices; its Free Trial plan is $0 for 30 days as of 2026-11-12. APIs.io lists 5 pricing plans for Mnemo Protocol, with each plan's price, limits and inclusions under Pricing on this page.

Is the Mnemo Protocol API ready for AI agents?

Mnemo Protocol has a Kin Score of 48.6 out of 100 (developing) and an Agent Readiness score of 41.7 (agent-native), scored by API Evangelist on 2026-11-13.

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