Slintel

Slintel is a B2B sales and market intelligence platform that mines buyer and technographic signals — company firmographics, technology installs, psychographics, and buying-intent scores — to help revenue teams prioritize accounts and time outreach. Founded in 2016 and backed by Accel and Sequoia, Slintel was acquired by 6sense in 2021 and its data and API services are now consolidated into the 6sense Revenue AI platform. Slintel's programmatic surface (company identification, firmographics, lead scoring, and enrichment) is delivered through the 6sense API Portal rather than a standalone Slintel developer portal. As of a 2026-08-14 probe pass, Slintel operates no developer surface of its own: slintel.com redirects every path into 6sense.com, the historical api.slintel.com and app.slintel.com hosts are decommissioned, no /.well-known/ document or machine-readable spec is served, and no first-party SDK exists in any public package registry. The successor APIs are catalogued under the 6sense provider.

Slintel is profiled on the APIs.io network. Tagged areas include Company, Automation, Sales Intelligence, Market Intelligence, and Data Enrichment.

🌐 Visit website 📡 Source on GitHub

5.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company Automation Sales Intelligence Market Intelligence Data Enrichment FirmographicsBuying IntentB2B

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 5.0/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.0 / 10

Agent readiness — 0/100 · 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 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

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.

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/slintel: 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 →

Security Posture 1

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

Slintel Domain Security

TLSv1.3 · DNSSEC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: slintel
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - url: https://www.slintel.com
    status: 301
    note: declared website redirects to https://6sense.com:443/platform/sales — a different registrable domain (slintel.com
      -> 6sense.com), possible rename or acquisition (probed 2026-09-03, roadmap#169)
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/slintel.png
name: Slintel
description: 'Slintel is a B2B sales and market intelligence platform that mines buyer and technographic signals — company
  firmographics, technology installs, psychographics, and buying-intent scores — to help revenue teams prioritize accounts
  and time outreach. Founded in 2016 and backed by Accel and Sequoia, Slintel was acquired by 6sense in 2021 and its data
  and API services are now consolidated into the 6sense Revenue AI platform. Slintel''s programmatic surface (company identification,
  firmographics, lead scoring, and enrichment) is delivered through the 6sense API Portal rather than a standalone Slintel
  developer portal. As of a 2026-08-14 probe pass, Slintel operates no developer surface of its own: slintel.com redirects
  every path into 6sense.com, the historical api.slintel.com and app.slintel.com hosts are decommissioned, no /.well-known/
  document or machine-readable spec is served, and no first-party SDK exists in any public package registry. The successor
  APIs are catalogued under the 6sense provider.'
url: https://raw.githubusercontent.com/api-evangelist/slintel/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- accel
x-tier: stub
x-tier-reason: portfolio-lead
x-status: acquired
x-acquired-by: 6sense
x-acquired-date: '2021-10-05'
x-primary-provider: 6sense
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-14'
tags:
- Company
- Automation
- Sales Intelligence
- Market Intelligence
- Data Enrichment
- Firmographics
- Buying Intent
- B2B
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.slintel.com
- type: Lifecycle
  url: lifecycle/slintel-lifecycle.yml
- type: LLMsTxt
  url: llms/slintel-llms.txt
- type: DomainSecurity
  url: security/slintel-domain-security.yml
x-attribution:
  note: The DeveloperPortal, Documentation, APIReference and Support pointers carried by this record until 2026-08-14 all
    resolved to 6sense hosts (api.6sense.com, support.6sense.com). They have been removed. 6sense's own API reference does
    not mention Slintel anywhere, and no Slintel-branded operation exists in it, so those pages document 6sense's API rather
    than a surviving Slintel developer surface — keeping them would credit Slintel with a developer program it does not operate.
    The successor surface is recorded in lifecycle/slintel-lifecycle.yml and is catalogued in full under the `6sense` provider.
  checked: '2026-08-14'
x-enrichment:
  date: '2026-08-14'
  status: minimal
  artifacts_added: 4
  pass: local-v1
x-coverage:
  state: none
  reason: defunct
  detail: 'Slintel was absorbed into 6sense (announced 2021-10-05) and its own surface is gone: slintel.com answers a blanket
    HTTP 301 to 6sense.com/platform/sales on every path including /openapi.json and every /.well-known/ path, while api.slintel.com
    and app.slintel.com still carry DNS CNAMEs to AWS load balancers that no longer resolve.'
  evidence:
  - url: https://slintel.com/openapi.json
    status: 301
  - url: https://slintel.com/.well-known/agent-card.json
    status: 301
  - url: https://api.6sense.com/docs/
    status: 200
  - url: https://www.slintel.com/
    status: 403
  checked: '2026-08-14'

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