NordSpam

The NordSpam Project provides a DNS-based blacklist (DNSBL) service that helps prevent unwanted spam by maintaining reputation databases of domains and IP addresses. Users can query the service via DNS lookups to determine if an IP or domain is listed. The project offers public usage documentation, policy information, and support contact details, aiming to improve email security and reduce spam traffic across the internet.

NordSpam is listed with 1 API on the APIs.io network. Tagged areas include Company, Spam, DNSBL, Security, and Email.

NordSpam’s developer surface includes documentation, support, and 6 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

12.0/100 emerging Agent 3/100 human only Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API

CompanySpamDNSBLSecurity Email Reputation

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 12.0/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 2.4 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.6 / 11

Contract Governance 0.0 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.9 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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

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
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

12 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
Access Clarity scores 10.5 — up to +17.9 composite points
Developer Ergonomics scores 14.3 — up to +17.1 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/nordspam/apis.yml: open an issue on github.com/api-evangelist/nordspam 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 →

APIs 1

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

NordSpam API

Provides DNSBL lookup capabilities; API access is available on request via the contact page.

Pricing Plans 1

Published pricing tiers and plan structures.

Nordspam Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Nordspam Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Nordspam Authentication

0 schemes

SECURITY

Nordspam Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Nordspam Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

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: nordspam
name: NordSpam
description: The NordSpam Project provides a DNS-based blacklist (DNSBL) service that helps prevent unwanted spam by maintaining
  reputation databases of domains and IP addresses. Users can query the service via DNS lookups to determine if an IP or domain
  is listed. The project offers public usage documentation, policy information, and support contact details, aiming to improve
  email security and reduce spam traffic across the internet.
url: https://artifacts.apis.io/nordspam/apis.yml
image: https://www.nordspam.com/shield-logo.png
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-28 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-28'
modified: '2026-10-28'
x-coverage:
  state: gated
  reason: sales-gate
  detail: API access requires contacting via the contact page; no public endpoint is disclosed.
  evidence:
  - url: https://www.nordspam.com/usage/
    status: 200
  checked: '2026-10-28'
tags:
- Company
- Spam
- DNSBL
- Security
- Email
- Reputation
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Hosts
  url: hosts/nordspam-hosts.yml
- type: Vendors
  url: vendors/nordspam-vendors.yml
- type: GitHubOrganization
  url: https://github.com/NordSpam
- type: DomainSecurity
  url: security/nordspam-domain-security.yml
- type: Website
  url: https://nordspam.com/
- type: Documentation
  url: https://www.nordspam.com/usage/
- type: Support
  url: https://www.nordspam.com/contact/
- type: TermsOfService
  url: https://www.nordspam.com/policy/
apis:
- name: NordSpam API
  description: Provides DNSBL lookup capabilities; API access is available on request via the contact page.
  humanURL: https://www.nordspam.com/usage/
  aid: nordspam:nordspam-api
x-submission-probe: 301 https://www.nordspam.com/, 2026-10-26
x-enrichment:
  date: '2026-10-28'
  status: enriched
  artifacts_added: 21
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

NordSpam API — frequently asked questions

Does NordSpam have an API?

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

How do I authenticate with the NordSpam API?

NordSpam documents its authentication (0 schemes). The details are profiled on APIs.io as Nordspam Authentication.

Is the NordSpam API ready for AI agents?

NordSpam has a Kin Score of 12.0 out of 100 (emerging) and an Agent Readiness score of 2.5 (human-only), scored by API Evangelist on 2026-10-31.

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