Derrick

B2B data-enrichment engine providing professional emails, phone numbers, LinkedIn/company enrichment, tech-stack detection, email verification, lead/company search, and French SIRET/SIREN data. Delivered via a Google Sheets add-on, a REST API, and an MCP server for AI agents.

Derrick is listed with 2 APIs on the APIs.io network. Tagged areas include Data Enrichment, Email Finder, Phone Finder, company-firmographics, and Lead Generation.

Derrick’s developer surface includes authentication, changelog, pricing, engineering blog, signup flow, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

35.8/100 thin ▬ flat Agent 34/100 agent ready Front door AI 6/6 dominant Heartbeat 72/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

2 APIs 1 MCP Servers 3 Agent Skills

Data Enrichment Email Finder Phone Findercompany-firmographicsLead Generation Sales Intelligence CRM Enrichment Tech Stack Detection Email Verificationsiret-siren-franceMCP Server Llms.txt Google Sheets GTM-Tools

Kin Score

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

Composite quality — 35.8/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 4.4 / 17

Access Clarity 10.3 / 17

Operational Transparency 6.1 / 11

Contract Governance 1.9 / 10

Discoverability 6.4 / 9

Regulatory Posture 4.0 / 15

Agent readiness — 34/100 · agent ready

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

4 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
Developer Ergonomics scores 25.6 — up to +14.9 composite points
Contract Governance scores 18.2 — up to +9.8 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/derrick/apis.yml: open an issue on github.com/api-evangelist/derrick 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 4

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.

llms.txt

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

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 2

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

Derrick REST API

REST API for B2B data enrichment (emails, phones, profile/company enrichment, verification, search, SIRET/SIREN). Bearer API-key auth; requires Standard plan or above.

Derrick MCP Server

Hosted streamable-HTTP MCP server exposing 12 enrichment tools; also available as a local npm package (derrick-mcp). Bearer API-key auth; requires Standard plan or above.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Derrick MCP Server

MCP SERVER

Agent Skills 3

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

derrick-build-target-account-list

AGENT SKILL

derrick-enrich-lead-contact-info

AGENT SKILL

derrick-french-company-registry

AGENT SKILL

Derrick API pricing

Prices published by Derrick. A free plan or tier is listed.

Plan	Price
FREE	Free
MINI	EUR 9
STANDARD	EUR 20
PLUS	EUR 47.5
PRO	EUR 175
SCALE	EUR 320

Plan details, limits and sources →

Rate limits

: 60 1 minute

Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Derrick Plans Pricing

6 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Derrick Rate Limits

1 limits

RATE LIMITS

Security Posture 3

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

Derrick Authentication

3 schemes

SECURITY

Derrick Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Derrick Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

WellKnown

MCPServer

LLMsTxt

AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conformance

Conventions

ErrorCatalog

Lifecycle

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Security

SecurityTxt

Authentication

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

ChangeLog

ChangeLog

Roadmap

Roadmap

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

Pricing

Pricing

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

name: Derrick
description: B2B data-enrichment engine providing professional emails, phone numbers, LinkedIn/company enrichment, tech-stack
  detection, email verification, lead/company search, and French SIRET/SIREN data. Delivered via a Google Sheets add-on, a
  REST API, and an MCP server for AI agents.
url: https://raw.githubusercontent.com/api-evangelist/derrick/refs/heads/main/apis.yml
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
created: '2026-09-09'
modified: '2026-09-09'
specificationVersion: '0.21'
image: https://derrick-app.com/og/index.png
tags:
- Data Enrichment
- Email Finder
- Phone Finder
- company-firmographics
- Lead Generation
- Sales Intelligence
- CRM Enrichment
- Tech Stack Detection
- Email Verification
- siret-siren-france
- MCP Server
- Llms.txt
- Google Sheets
- GTM-Tools
tags_raw:
- b2b-data-enrichment
- email-finder
- phone-finder
- company-firmographics
- lead-generation
- sales-intelligence
- crm-enrichment
- tech-stack-detection
- email-verification
- siret-siren-france
- mcp-server
- llms-txt
- google-sheets
- gtm-tools
- Data Enrichment
apis:
- name: Derrick REST API
  description: REST API for B2B data enrichment (emails, phones, profile/company enrichment, verification, search, SIRET/SIREN).
    Bearer API-key auth; requires Standard plan or above.
  humanURL: https://app1.derrick-app.com/api/v1/docs/
  baseURL: https://app1.derrick-app.com/api/v1/
  image: https://derrick-app.com/og/index.png
  tags:
  - Data Enrichment
  - Email Finder
  - Phone Finder
  - company-firmographics
  - Lead Generation
  - Sales Intelligence
  - CRM Enrichment
  - Tech Stack Detection
  - Email Verification
  - siret-siren-france
  - MCP Server
  - Llms.txt
  - Google Sheets
  - GTM-Tools
  tags_raw:
  - b2b-data-enrichment
  - email-finder
  - phone-finder
  - company-firmographics
  - lead-generation
  - sales-intelligence
  - crm-enrichment
  - tech-stack-detection
  - email-verification
  - siret-siren-france
  - mcp-server
  - llms-txt
  - google-sheets
  - gtm-tools
  properties:
  - type: Documentation
    url: https://app1.derrick-app.com/api/v1/docs/
- name: Derrick MCP Server
  description: Hosted streamable-HTTP MCP server exposing 12 enrichment tools; also available as a local npm package (derrick-mcp).
    Bearer API-key auth; requires Standard plan or above.
  humanURL: https://derrick-app.com/mcp
  baseURL: https://app1.derrick-app.com/mcp
  image: https://derrick-app.com/og/index.png
  tags:
  - Data Enrichment
  - Email Finder
  - Phone Finder
  - company-firmographics
  - Lead Generation
  - Sales Intelligence
  - CRM Enrichment
  - Tech Stack Detection
  - Email Verification
  - siret-siren-france
  - MCP Server
  - Llms.txt
  - Google Sheets
  - GTM-Tools
  tags_raw:
  - b2b-data-enrichment
  - email-finder
  - phone-finder
  - company-firmographics
  - lead-generation
  - sales-intelligence
  - crm-enrichment
  - tech-stack-detection
  - email-verification
  - siret-siren-france
  - mcp-server
  - llms-txt
  - google-sheets
  - gtm-tools
  properties:
  - type: MCPServer
    url: https://app1.derrick-app.com/mcp
  - type: Documentation
    url: https://derrick-app.com/mcp
  - type: LLMsTxt
    url: https://derrick-app.com/llms.txt
maintainers:
- FN: Derrick Support
  email: contact@derrick-app.com
  url: https://derrick-app.com
x-enrichment:
  date: '2026-09-09'
  status: enriched
  artifacts_added: 28
  pass: local-v3
x-generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 93
  at: '2026-09-09T11:29:58.771Z'
common:
- type: Website
  url: https://derrick-app.com
- type: VulnerabilityDisclosure
  url: security/derrick-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/derrick-domain-security.yml
- type: Security
  url: security/derrick-vulnerability-disclosure.yml
- type: WellKnown
  url: well-known/derrick-well-known.yml
- type: SecurityTxt
  url: well-known/derrick-security.txt
- type: MCPServer
  url: mcp/derrick-mcp.yml
- type: LLMsTxt
  url: llms/derrick-llms.txt
- type: Packages
  url: packages/derrick-packages.yml
- type: Plans
  url: plans/derrick-plans-pricing.yml
- type: RateLimits
  url: rate-limits/derrick-rate-limits.yml
- type: Authentication
  url: authentication/derrick-authentication.yml
- type: Conformance
  url: conformance/derrick-conformance.yml
- type: Conventions
  url: conventions/derrick-conventions.yml
- type: ErrorCatalog
  url: errors/derrick-problem-types.yml
- type: Lifecycle
  url: lifecycle/derrick-lifecycle.yml
- type: ChangeLog
  url: changelog/derrick-changelog.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Pricing
  url: https://derrick-app.com/#pricing
- type: Roadmap
  url: https://derrick.productlift.dev/
- type: PrivacyPolicy
  url: https://derrick-app.com/privacy
- type: Blog
  url: https://derrick-app.com/blog
- type: SignUp
  url: https://derrick-app.com/get-started
- type: GitHubOrganization
  url: https://github.com/DerrickAppOrg

Derrick API — frequently asked questions

Does Derrick have an API?

Yes. APIs.io lists 2 APIs from Derrick, including Derrick REST API and Derrick MCP Server.

How do I authenticate with the Derrick API?

Derrick documents its authentication (3 schemes). The details are profiled on APIs.io as Derrick Authentication.

How much does the Derrick API cost?

Derrick publishes its prices; its MINI plan is EUR 9 as of 2026-09-09. APIs.io lists 6 pricing plans for Derrick, with each plan's price, limits and inclusions under Pricing on this page.

Does Derrick have an MCP server?

Yes. APIs.io lists 1 MCP server for Derrick.

Is the Derrick API ready for AI agents?

Derrick has a Kin Score of 35.8 out of 100 (thin) and an Agent Readiness score of 34.4 (agent-ready), scored by API Evangelist on 2026-11-06.

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