Nousdata Inc.

Nousdata Inc. operates Kelam, a voice‑agent platform enabling developers to build and deploy AI‑driven phone call agents. The company is registered in Illinois, USA, and provides tools for voice, messaging, and AI integration, with open‑source CLI installers and cloud‑hosted services. It focuses on privacy, compliance, and scalable agent deployment for enterprises and developers alike.

Nousdata Inc. publishes 10 API contracts indexed on the APIs.io network, including Allowlist Number API, Balance API, Build API, and 7 more. Tagged areas include CLI, Voice Agents, Installer, Homebrew, and Python.

The Nousdata Inc. catalog on APIs.io includes 1 Spectral governance ruleset.

Nousdata Inc.’s developer surface includes CLI, authentication, documentation, API reference, getting-started guide, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

37.2/100 thin Agent 19/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract 1 Agent Skills

CLI Voice Agents Installer Homebrew Python

Kin Score

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

Composite quality — 37.2/100 · thin

Contract Quality 10.0 / 21

Developer Ergonomics 8.4 / 17

Access Clarity 4.7 / 17

Operational Transparency 0.5 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 19/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 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 AI & Biometrics 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 →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

8 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 27.7 — up to +14.5 composite points Ask about this →
Contract Quality scores 47.1 — up to +13.2 composite points Ask about this →
Operational Transparency scores 4.8 — up to +12.4 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/kelam-sh/apis.yml: open an issue on github.com/api-evangelist/kelam-sh 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 10

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

Nousdata Inc. Allowlist Number API

The Allowlist_number API from Nousdata Inc. — 1 operation(s) for allowlist_number.

Nousdata Inc. Balance API

The Balance API from Nousdata Inc. — 1 operation(s) for balance.

Nousdata Inc. Build API

The Build API from Nousdata Inc. — 1 operation(s) for build.

Nousdata Inc. Build View API

The Build_view API from Nousdata Inc. — 1 operation(s) for build_view.

Nousdata Inc. Call Status API

The Call_status API from Nousdata Inc. — 1 operation(s) for call_status.

Nousdata Inc. Create Agent API

The Create_agent API from Nousdata Inc. — 1 operation(s) for create_agent.

Nousdata Inc. Health API

The Health API from Nousdata Inc. — 1 operation(s) for health.

Nousdata Inc. List Agents API

The List_agents API from Nousdata Inc. — 1 operation(s) for list_agents.

Nousdata Inc. Place Call API

The Place_call API from Nousdata Inc. — 1 operation(s) for place_call.

Nousdata Inc. Top Up API

The Top_up API from Nousdata Inc. — 1 operation(s) for top_up.

Scroll for all 10

Agent Skills 1

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

place-call

AGENT SKILL

Spectral Rules 1

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

Nousdata Inc. API Rules

49 rules · 46 error-severity 2 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

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

Nousdata Inc. Authentication

apiKey · 1 scheme

SECURITY

Nousdata Inc. Domain Security

TLSv1.3

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Nousdata Inc. Agentic Access

10 operations · 5 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

ErrorCatalog

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

CLI

CLI

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

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: kelam-sh
name: Nousdata Inc.
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kelam.sh/og.png
description: Nousdata Inc. operates Kelam, a voice‑agent platform enabling developers to build and deploy AI‑driven phone
  call agents. The company is registered in Illinois, USA, and provides tools for voice, messaging, and AI integration, with
  open‑source CLI installers and cloud‑hosted services. It focuses on privacy, compliance, and scalable agent deployment for
  enterprises and developers alike.
url: https://artifacts.apis.io/kelam-sh/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-13 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-13'
modified: '2026-11-13'
tags:
- CLI
- Voice Agents
- Installer
- Homebrew
- Python
tags_raw:
- CLI
- Voice Agent
- Installer
- Homebrew
- Python
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/kelam-sh-agentic-access.yml
- type: Spectral
  url: rules/kelam-sh-rules.yml
- type: Vocabulary
  url: vocabulary/kelam-sh-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: CLI
  url: cli/kelam-sh-cli.yml
- type: ErrorCatalog
  url: errors/kelam-sh-problem-types.yml
- type: Conformance
  url: conformance/kelam-sh-conformance.yml
- type: LLMsTxt
  url: llms/kelam-sh-llms.txt
- type: Hosts
  url: hosts/kelam-sh-hosts.yml
- type: Vendors
  url: vendors/kelam-sh-vendors.yml
- type: Login
  url: https://app.kelam.sh/login
- type: GitHubOrganization
  url: https://github.com/kaupau
- type: Authentication
  url: authentication/kelam-sh-authentication.yml
- type: DomainSecurity
  url: security/kelam-sh-domain-security.yml
- type: Website
  url: https://kelam.sh/
- type: Documentation
  url: https://kelam.sh/docs
- type: APIReference
  url: https://kelam.sh/docs
- type: GettingStarted
  url: https://kelam.sh/docs
- type: TermsOfService
  url: https://kelam.sh/terms
- type: PrivacyPolicy
  url: https://kelam.sh/privacy
apis:
- aid: kelam-sh:kelam-sh-allowlist-number-api
  name: Nousdata Inc. Allowlist Number API
  description: The Allowlist_number API from Nousdata Inc. — 1 operation(s) for allowlist_number.
  humanURL: https://kelam.sh/docs
  baseURL: https://call.kelam.sh
  tags:
  - Allowlist_number
  properties:
  - type: OpenAPI
    url: openapi/kelam-sh-allowlist-number-api-openapi.yml
- aid: kelam-sh:kelam-sh-balance-api
  name: Nousdata Inc. Balance API
  description: The Balance API from Nousdata Inc. — 1 operation(s) for balance.
  humanURL: https://kelam.sh/docs
  baseURL: https://call.kelam.sh
  tags:
  - Balances
  tags_raw:
  - Balance
  properties:
  - type: OpenAPI
    url: openapi/kelam-sh-balance-api-openapi.yml
- aid: kelam-sh:kelam-sh-build-api
  name: Nousdata Inc. Build API
  description: The Build API from Nousdata Inc. — 1 operation(s) for build.
  humanURL: https://kelam.sh/docs
  baseURL: https://call.kelam.sh
  tags:
  - Builds
  tags_raw:
  - Build
  properties:
  - type: OpenAPI
    url: openapi/kelam-sh-build-api-openapi.yml
- aid: kelam-sh:kelam-sh-build-view-api
  name: Nousdata Inc. Build View API
  description: The Build_view API from Nousdata Inc. — 1 operation(s) for build_view.
  humanURL: https://kelam.sh/docs
  baseURL: https://call.kelam.sh
  tags:
  - Build_view
  properties:
  - type: OpenAPI
    url: openapi/kelam-sh-build-view-api-openapi.yml
- aid: kelam-sh:kelam-sh-call-status-api
  name: Nousdata Inc. Call Status API
  description: The Call_status API from Nousdata Inc. — 1 operation(s) for call_status.
  humanURL: https://kelam.sh/docs
  baseURL: https://call.kelam.sh
  tags:
  - Call_status
  properties:
  - type: OpenAPI
    url: openapi/kelam-sh-call-status-api-openapi.yml
- aid: kelam-sh:kelam-sh-create-agent-api
  name: Nousdata Inc. Create Agent API
  description: The Create_agent API from Nousdata Inc. — 1 operation(s) for create_agent.
  humanURL: https://kelam.sh/docs
  baseURL: https://call.kelam.sh
  tags:
  - '#CreateAgent'
  tags_raw:
  - Create_agent
  properties:
  - type: OpenAPI
    url: openapi/kelam-sh-create-agent-api-openapi.yml
- aid: kelam-sh:kelam-sh-health-api
  name: Nousdata Inc. Health API
  description: The Health API from Nousdata Inc. — 1 operation(s) for health.
  humanURL: https://kelam.sh/docs
  baseURL: https://call.kelam.sh
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/kelam-sh-health-api-openapi.yml
- aid: kelam-sh:kelam-sh-list-agents-api
  name: Nousdata Inc. List Agents API
  description: The List_agents API from Nousdata Inc. — 1 operation(s) for list_agents.
  humanURL: https://kelam.sh/docs
  baseURL: https://call.kelam.sh
  tags:
  - List Agents
  tags_raw:
  - List_agents
  properties:
  - type: OpenAPI
    url: openapi/kelam-sh-list-agents-api-openapi.yml
- aid: kelam-sh:kelam-sh-place-call-api
  name: Nousdata Inc. Place Call API
  description: The Place_call API from Nousdata Inc. — 1 operation(s) for place_call.
  humanURL: https://kelam.sh/docs
  baseURL: https://call.kelam.sh
  tags:
  - Place_call
  properties:
  - type: OpenAPI
    url: openapi/kelam-sh-place-call-api-openapi.yml
- aid: kelam-sh:kelam-sh-top-up-api
  name: Nousdata Inc. Top Up API
  description: The Top_up API from Nousdata Inc. — 1 operation(s) for top_up.
  humanURL: https://kelam.sh/docs
  baseURL: https://call.kelam.sh
  tags:
  - Top Up
  tags_raw:
  - Top_up
  properties:
  - type: OpenAPI
    url: openapi/kelam-sh-top-up-api-openapi.yml
x-enrichment:
  date: '2026-11-13'
  status: enriched
  artifacts_added: 21
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Nousdata Inc. API — frequently asked questions

Does Nousdata Inc. have an API?

Yes. APIs.io lists 10 APIs from Nousdata Inc., including Nousdata Inc. Allowlist Number API, Nousdata Inc. Balance API and Nousdata Inc. Build API, and 7 more.

Is there an OpenAPI specification for the Nousdata Inc. API?

Yes. APIs.io indexes 10 OpenAPI specifications for Nousdata Inc., each linked for download from this page.

How do I authenticate with the Nousdata Inc. API?

Nousdata Inc. uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Nousdata Inc. Authentication.

Is the Nousdata Inc. API ready for AI agents?

Nousdata Inc. has a Kin Score of 37.2 out of 100 (thin) and an Agent Readiness score of 18.9 (agent-aware), scored by API Evangelist on 2026-11-13.

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