Orisift

Orisift provides a unified validation API for phone numbers, email addresses, IP addresses, and domain information. The service offers format checking, numbering plan verification, reserved and fictional range detection for phone numbers, as well as MX, Null MX, SPF, and DMARC checks for email domains. It returns detailed evidence and risk signals, supporting agencies and developers in data quality and compliance workflows. The platform delivers a single endpoint with credit‑based usage, allowing free trial credits and paid plans for higher volume.

Orisift publishes 1 API on the APIs.io network: Lookup API. Tagged areas include Company, Validation, Phone, Email, and IP.

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

Orisift’s developer surface includes engineering blog, documentation, API reference, getting-started guide, pricing, signup flow, and 16 more developer resources.

🌐 Visit website 📡 Source on GitHub
38.1/100 thin Agent 16/100 agent aware Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0
1 API
CompanyValidationPhoneEmailIPDomain

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-04 · rubric v0.23.0
Composite quality — 38.1/100 · thin
Contract Quality 4.1 / 19
Developer Ergonomics 6.4 / 15
Access Clarity 11.4 / 15
Operational Transparency 0.5 / 10
Contract Governance 2.0 / 9
Discoverability 4.3 / 8
Regulatory Posture 2.8 / 15
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 16/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 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
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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
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 github.com/api-evangelist/orisift: open an issue to ask a question, or submit a pull request to add artifacts. 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.

Orisift Lookup API

The Lookup API from Orisift — 1 operation(s) for lookup.

Pricing Plans 1

Published pricing tiers and plan structures.

Orisift Plans Pricing

4 plans

PLANS

Semantic Vocabularies 1

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

Orisift Context

2 classes · 14 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Orisift API Rules

12 rules · 10 errors 1 warnings 1 info

SPECTRAL

JSON Schema 2

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

PostV1LookupRequest

1 properties

JSON SCHEMA

PostV1LookupResponse

13 properties

JSON SCHEMA

Security Posture 1

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

Orisift Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral
Spectral
 JSONLD
JSONLD
 Vocabulary
Vocabulary
 DataModel
DataModel
 Conformance
Conformance

Build 4

SDKs, sample code, and the tooling you integrate with

SDKs
SDKs
 Packages
Packages
 GitHubOrganization
GitHubOrganization
 Postman
Postman

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 4

Pricing, plans, and the legal terms of use

Plans
Plans
 Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Blog
Blog
 Website
Website

Other 2

Properties that don't map to a standard resource type

Hosts
Hosts
 Vendors
Vendors

Source (apis.yml)

apis.yml Raw ↑ 
aid: orisift
name: Orisift
image: https://orisift.com/opengraph-image?0bbf128a9b71721e
description: Orisift provides a unified validation API for phone numbers, email addresses, IP addresses, and domain information.
  The service offers format checking, numbering plan verification, reserved and fictional range detection for phone numbers,
  as well as MX, Null MX, SPF, and DMARC checks for email domains. It returns detailed evidence and risk signals, supporting
  agencies and developers in data quality and compliance workflows. The platform delivers a single endpoint with credit‑based
  usage, allowing free trial credits and paid plans for higher volume.
url: https://raw.githubusercontent.com/api-evangelist/orisift/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-09-28 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-09-28'
modified: '2026-09-28'
tags:
- Company
- Validation
- Phone
- Email
- IP
- Domain
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Blog
  url: https://orisift.com/blog/reserved-and-fictional-phone-ranges
- type: Plans
  url: plans/orisift-plans-pricing.yml
- type: Spectral
  url: rules/orisift-rules.yml
- type: JSONLD
  url: json-ld/orisift-context.jsonld
- type: Vocabulary
  url: vocabulary/orisift-vocabulary.yml
- type: DataModel
  url: data-model/orisift-data-model.yml
- type: Conformance
  url: conformance/orisift-conformance.yml
- type: Hosts
  url: hosts/orisift-hosts.yml
- type: Vendors
  url: vendors/orisift-vendors.yml
- type: SDKs
  url: packages/orisift-packages.yml
- type: Packages
  url: packages/orisift-packages.yml
- type: DomainSecurity
  url: security/orisift-domain-security.yml
- type: Website
  url: https://orisift.com/
- type: Documentation
  url: https://orisift.com/docs
- type: APIReference
  url: https://orisift.com/docs
- type: GettingStarted
  url: https://orisift.com/signup
- type: GitHubOrganization
  url: https://github.com/orisift
- type: Pricing
  url: https://orisift.com/pricing
- type: SignUp
  url: https://orisift.com/signup
- type: TermsOfService
  url: https://orisift.com/terms
- type: PrivacyPolicy
  url: https://orisift.com/privacy
- type: Postman
  url: https://www.postman.com/orisift/workspace
apis:
- aid: orisift:orisift-lookup-api
  name: Orisift Lookup API
  description: The Lookup API from Orisift — 1 operation(s) for lookup.
  humanURL: https://orisift.com/phone-number-validation-api
  tags:
  - Lookup
  properties:
  - type: OpenAPI
    url: openapi/orisift-lookup-api-openapi.yml
  - type: JSONSchema
    url: json-schema/orisift-post-v1-lookup-response-schema.json
  - type: JSONSchema
    url: json-schema/orisift-post-v1-lookup-request-schema.json
x-submission-notes: 'Developer API: one POST https://orisift.com/v1/lookup for phone (format, numbering plan, reserved fiction
  ranges), email domain (MX, Null MX...) checks.'
x-submission-probe: '2026-09-28: root 200, invented 404, docs 200'
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: Documentation at https://orisift.com/docs is a JavaScript‑rendered single‑page app with no machine‑readable spec.
  evidence:
  - url: https://orisift.com/docs
    status: 200
  checked: '2026-09-28'
x-submitted-by: orisift@gmail.com (apis.io/add, 2026-09-28)
x-enrichment:
  date: '2026-09-28'
  status: enriched
  artifacts_added: 16
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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