Promethium

Promethium is an open agentic data platform that gives analysts, business users, and AI agents trusted access to all enterprise data through a single governed layer without moving, copying, or consolidating data. Its AI Insights Fabric combines a zero-copy federated Universal Query Engine (Trino) across cloud warehouses, relational databases, SaaS apps and on-prem systems, an Insights Context Graph that assembles business definitions and semantic models, and a Trust Harness that validates answers before delivery. Promethium exposes governed data to any agent, copilot, or application through a single MCP server or REST API, with its Mantra engine powering plain-English agentic analytics. Backed by Insight Partners; led by CEO Prat Moghe.

Promethium is listed with 1 API on the APIs.io network. Tagged areas include Company, Data Fabric, Agentic Analytics, Semantic Layer, and Enterprise Data.

Promethium’s developer surface includes documentation, API reference, getting-started guide, engineering blog, pricing, signup flow, support, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

30.3/100 thin ▬ flat Agent 7/100 agent aware Front door AI 6/6 dominant Heartbeat 37/100 going silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API 2 Agent Skills

Company Data Fabric Agentic Analytics Semantic Layer Enterprise Data MCP Federated Query Data Governance

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 30.3/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 10.0 / 17

Access Clarity 7.6 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.5 / 10

Discoverability 6.2 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 7/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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 Horizontal (data, software, accessibility, platform) 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

10 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Operational Transparency scores 2.6 — up to +12.7 composite points
Contract Governance scores 4.5 — up to +11.5 composite points

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.

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/promethium/apis.yml: open an issue on github.com/api-evangelist/promethium 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.

Model Context Protocol (MCP)

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

APIs 1

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

Promethium API

REST API for Promethium's agentic data platform — tenant-scoped OAuth2 authentication, datamap search and creation, bulk metadata import, audit logs, and federated SQL execution...

Agent Skills 2

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

promethium-catalog-data-asset

AGENT SKILL

promethium-search-and-query

AGENT SKILL

Security Posture 2

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

Promethium Authentication

5 schemes

SECURITY

Promethium Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

AgentSkill

AgentSkill

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Source (apis.yml)

aid: promethium
name: Promethium
description: Promethium is an open agentic data platform that gives analysts, business users, and AI agents trusted access
  to all enterprise data through a single governed layer without moving, copying, or consolidating data. Its AI Insights Fabric
  combines a zero-copy federated Universal Query Engine (Trino) across cloud warehouses, relational databases, SaaS apps and
  on-prem systems, an Insights Context Graph that assembles business definitions and semantic models, and a Trust Harness
  that validates answers before delivery. Promethium exposes governed data to any agent, copilot, or application through a
  single MCP server or REST API, with its Mantra engine powering plain-English agentic analytics. Backed by Insight Partners;
  led by CEO Prat Moghe.
url: https://raw.githubusercontent.com/api-evangelist/promethium/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- insight-partners
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
image: https://promethium.ai/wp-content/themes/promethium/assets/images/src/favicon.png
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
x-docs-hosting: github-pages
tags:
- Company
- Data Fabric
- Agentic Analytics
- Semantic Layer
- Enterprise Data
- MCP
- Federated Query
- Data Governance
tags_raw:
- Company
- Data Fabric
- Agentic Analytics
- Semantic Layer
- Enterprise Data
- Model Context Protocol
- Federated Query
- Data Governance
apis:
- name: Promethium API
  description: REST API for Promethium's agentic data platform — tenant-scoped OAuth2 authentication, datamap search and creation,
    bulk metadata import, audit logs, and federated SQL execution via the Trino Stream Universal Query Engine.
  humanURL: https://docs.promethium.ai/docs/api-intro
  baseURL: https://api.prod.promethium.ai
  tags:
  - Data Fabric
  - Federated Query
  - Metadata
  properties:
  - type: Documentation
    url: https://docs.promethium.ai/docs/api-intro
  - type: Authentication
    url: authentication/promethium-authentication.yml
  - type: Conventions
    url: conventions/promethium-conventions.yml
  - type: Idempotency
    url: conventions/promethium-conventions.yml
  - type: Conformance
    url: conformance/promethium-conformance.yml
  - type: DataModel
    url: data-model/promethium-data-model.yml
  - type: X-MCPServerCandidate
    url: mcp/promethium-mcp.yml
    note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list
      derived from the published API contracts, not an existing server. The scorer already read the manifest and reported
      mcp_server correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
  - type: AgentSkill
    url: skills/_index.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://promethium.ai/feed/
  type: BlogRSS
- type: Website
  url: https://promethium.ai/
- type: DeveloperPortal
  url: https://docs.promethium.ai/
- type: Documentation
  url: https://docs.promethium.ai/docs/getting-started
- type: APIReference
  url: https://docs.promethium.ai/docs/api-intro
- type: GettingStarted
  url: https://docs.promethium.ai/docs/getting-started
- type: Blog
  url: https://promethium.ai/blog/
- type: Pricing
  url: https://promethium.ai/pricing/
- type: SignUp
  url: https://promethium.ai/trial
- type: Support
  url: https://promethium.ai/contact/
- type: TermsOfService
  url: https://promethium.ai/terms-of-service/
- type: PrivacyPolicy
  url: https://promethium.ai/privacy-policy/
- type: GitHubOrganization
  url: https://github.com/promethium-ai
- type: LLMsTxt
  url: llms/promethium-llms.txt
- type: Authentication
  url: authentication/promethium-authentication.yml
- type: DomainSecurity
  url: security/promethium-domain-security.yml
- type: WellKnown
  url: well-known/promethium-well-known.yml
- type: Lifecycle
  url: lifecycle/promethium-lifecycle.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 12
  pass: local-v1

Promethium API — frequently asked questions

Does Promethium have an API?

Yes. APIs.io lists 1 API from Promethium, including Promethium API.

How do I authenticate with the Promethium API?

Promethium uses bearer-token authentication (5 schemes). The details are profiled on APIs.io as Promethium Authentication.

Is the Promethium API ready for AI agents?

Promethium has a Kin Score of 30.3 out of 100 (thin) and an Agent Readiness score of 6.7 (agent-aware), scored by API Evangelist on 2026-11-06.

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get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
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apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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