Bot Butcher

Bot Butcher is an AI-powered spam detection API that uses a fine-tuned large language model to classify contact form submissions as spam or legitimate messages. The service analyzes messages within the context of what each website is about, providing context-aware classification with 99% reported accuracy against the provider's own human-graded benchmark. It supports multi-tenant architectures and is designed for enterprise scalability across vertical SaaS and website builder platforms. The API has two operations — classify a message, retrieve a message by id — authenticated with a per-form x-api-key header, and is sold on a single usage-based plan whose first ten requests each month are free. Bot Butcher is operated by Hillside Lab Inc, a Delaware corporation based in Pasadena, California.

Bot Butcher publishes 1 API contract indexed on the APIs.io network: Classification API. Tagged areas include Bots, Spam Detection, Contact Forms, AI Classification, and Security.

The Bot Butcher catalog on APIs.io includes 1 Spectral governance ruleset.

Bot Butcher’s developer surface includes documentation, API reference, getting-started guide, signup flow, pricing, authentication, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

37.4/100 thin ▬ flat Agent 30/100 agent ready Front door AI 3/6 light Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessSelf serveFree trial⚡ Free to try

1 published contract 2 Agent Skills

Bots Spam Detection Contact FormsAI ClassificationSecurity

Kin Score

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

Composite quality — 37.4/100 · thin

Contract Quality 2.8 / 19

Developer Ergonomics 7.1 / 15

Access Clarity 9.9 / 15

Operational Transparency 0.0 / 10

Contract Governance 2.9 / 9

Discoverability 5.0 / 8

Regulatory Posture 3.7 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 30/100 · agent ready

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 7 / 7

Rate-Limit Signaling 7 / 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 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/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/bot-butcher/"><img src="https://apis.io/badge/bot-butcher/card.svg" alt="Bot Butcher on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

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
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
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 15.0 — up to +21.3 composite points
Operational Transparency scores 0.0 — up to +13.0 composite points
Developer Ergonomics scores 47.0 — up to +10.6 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/bot-butcher/apis.yml: open an issue on github.com/api-evangelist/bot-butcher 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 1

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

Bot Butcher Classification API

Submit contact form data to Bot Butcher and receive a JSON classification result indicating whether the message is spam or legitimate. The AI model classifies each message withi...

Open Collections 2

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Bot Butcher Classification API

OPEN COLLECTION

Bot Butcher Classification API

OPEN COLLECTION

Agent Skills 2

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

classify-contact-form-submission

AGENT SKILL

get-classified-message

AGENT SKILL

Bot Butcher API pricing

Prices published by Bot Butcher.

Plan	Price
Usage based usage-based	—

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Bot Butcher Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Bot Butcher Rate Limits

0 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Bot Butcher

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Bot Butcher Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Bot Butcher API Rules

63 rules · 61 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Bot Butcher Classification Api Overlay

6 actions · update · bot-butcher-classification-api-openapi.yml

GENERATED

Security Posture 2

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

Bot Butcher Authentication

apiKey · 1 scheme

SECURITY

Bot Butcher Domain Security

TLSv1.3

SECURITY

Agentic Access 1

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

Bot Butcher Agentic Access

2 operations · 1 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

SignUp

SignUp

Login

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

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

Postman

Postman

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 5

Pricing, plans, and the legal terms of use

FinOps

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: bot-butcher
url: https://raw.githubusercontent.com/api-evangelist/bot-butcher/refs/heads/main/apis.yml
name: Bot Butcher
tags:
- Bots
- Spam Detection
- Contact Forms
- AI Classification
- Security
type: Index
kind: company
deliveryModel:
  model: unknown
  open_source: false
  commercial: true
  callable_host: true
  label: Commercial API — usage-based pricing published, no product licence on record
  confidence: medium
  source:
  - openapi
  - plans
  generated: '2026-09-04'
  method: derived
accessModel:
  pricing: usage-based
  onboarding: self-serve
  trial: true
  try_now: true
  public: true
  label: Usage-based · Self-serve signup · First 10 requests each month free
  confidence: high
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-04'
  method: searched
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/bot-butcher.png
access: 3rd-Party
created: '2025-01-07'
modified: '2026-09-04'
position: Consuming
description: Bot Butcher is an AI-powered spam detection API that uses a fine-tuned large language model to classify contact
  form submissions as spam or legitimate messages. The service analyzes messages within the context of what each website is
  about, providing context-aware classification with 99% reported accuracy against the provider's own human-graded benchmark.
  It supports multi-tenant architectures and is designed for enterprise scalability across vertical SaaS and website builder
  platforms. The API has two operations — classify a message, retrieve a message by id — authenticated with a per-form x-api-key
  header, and is sold on a single usage-based plan whose first ten requests each month are free. Bot Butcher is operated by
  Hillside Lab Inc, a Delaware corporation based in Pasadena, California.
apis:
- aid: bot-butcher:bot-butcher-classification-api
  name: Bot Butcher Classification API
  tags:
  - Spam Detection
  - Bot Detection
  - AI Classification
  - Contact Forms
  - Classification
  humanURL: https://botbutcher.com/documentation
  baseURL: https://api.botbutcher.com
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/bot-butcher.png
  description: Submit contact form data to Bot Butcher and receive a JSON classification result indicating whether the message
    is spam or legitimate. The AI model classifies each message within the context of your specific website, delivering context-aware
    spam detection for multi-tenant and enterprise applications. A message_id returned with each verdict can be used to retrieve
    the stored message and its classification later.
  properties:
  - type: OpenAPI
    url: openapi/bot-butcher-classification-api-openapi.yml
  - type: Documentation
    url: https://botbutcher.com/documentation
  - type: APIReference
    url: https://botbutcher.com/documentation
  - type: PostmanCollection
    url: collections/bot-butcher-api-published.postman_collection.json
  - type: Overlay
    url: overlays/bot-butcher-classification-api-overlay.yaml
  - type: X-MCPServerCandidate
    url: mcp/bot-butcher-mcp.yml
  contact:
  - FN: Bot Butcher Support
    email: botbutcher@hillsidelab.com
    url: https://botbutcher.com/
common:
- type: FinOps
  url: finops/bot-butcher-finops.yml
- type: Website
  url: https://botbutcher.com/
- type: Documentation
  url: https://botbutcher.com/documentation
- type: APIReference
  url: https://botbutcher.com/documentation
- type: GettingStarted
  url: https://botbutcher.com/get-started
- type: SignUp
  url: https://botbutcher.com/get-started
- type: Login
  url: https://botbutcher.com/login
- type: Pricing
  url: https://botbutcher.com/pricing
- type: TermsOfService
  url: https://botbutcher.com/terms
- type: PrivacyPolicy
  url: https://botbutcher.com/privacy
- type: Postman
  url: https://god.postman.co/run-collection/24192121-47f4e172-5026-4788-b752-cbbc5488a03e
- type: AgenticAccess
  url: agentic-access/bot-butcher-agentic-access.yml
- type: DomainSecurity
  url: security/bot-butcher-domain-security.yml
- type: Authentication
  url: authentication/bot-butcher-authentication.yml
- type: Conventions
  url: conventions/bot-butcher-conventions.yml
- type: ErrorCatalog
  url: errors/bot-butcher-problem-types.yml
- type: Lifecycle
  url: lifecycle/bot-butcher-lifecycle.yml
- type: Conformance
  url: conformance/bot-butcher-conformance.yml
- type: DataModel
  url: data-model/bot-butcher-data-model.yml
- type: Plans
  url: plans/bot-butcher-plans-pricing.yml
- type: RateLimits
  url: rate-limits/bot-butcher-rate-limits.yml
- type: LLMsTxt
  url: llms/bot-butcher-llms.txt
- type: AgentSkill
  url: skills/_index.yml
properties:
- type: x-domain
  value: botbutcher.com
- type: x-operator
  value: Hillside Lab Inc (Delaware corporation, Pasadena, California)
- type: x-industry
  value: Cybersecurity, Spam Detection
- type: x-authentication
  value: API Key (x-api-key header, one key per contact form)
- type: x-classification-model
  value: Fine-tuned Large Language Model (LLM)
- type: x-accuracy
  value: 99% against the provider's human-graded benchmark test
- type: x-features
  value: Spam classification, message retrieval by message_id, optional message storage, Do Not Train mode, Do Not Save mode,
    multi-tenant support, unlimited websites, context-aware classification
- type: x-use-cases
  value: Contact form spam filtering, enterprise SaaS spam protection, multi-tenant application security, website builder
    platform integration
- type: x-response-format
  value: JSON
- type: x-workflow
  value: 1. POST contact form data to Bot Butcher endpoint, 2. AI classifies message as spam or not spam, 3. Receive JSON
    result, 4. Optionally retrieve message by message_id
- type: x-no-sdks
  value: No client libraries are published in any package registry; the reference offers copy-paste snippets in seven languages
    built on stock HTTP clients.
- type: x-agent-gaps
  value: No idempotency on the billable write, no reversal path for a stored message, no published rate limits or rate-limit
    headers, and no sandbox or test mode.
maintainers:
- FN: Kin Lane
  email: info@apievangelist.com
specificationVersion: '0.23'
x-enrichment:
  date: '2026-09-04'
  status: enriched
  artifacts_added: 14
  pass: local-v3

Bot Butcher API — frequently asked questions

Does Bot Butcher have an API?

Yes. APIs.io lists 1 API from Bot Butcher, including Bot Butcher Classification API.

Is there an OpenAPI specification for the Bot Butcher API?

Yes. APIs.io indexes 1 OpenAPI specification for Bot Butcher, each linked for download from this page.

How do I authenticate with the Bot Butcher API?

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

How much does the Bot Butcher API cost?

APIs.io lists 1 pricing plan for Bot Butcher, with each plan's price, limits and inclusions under Pricing on this page.

Is the Bot Butcher API ready for AI agents?

Bot Butcher has a Kin Score of 37.4 out of 100 (thin) and an Agent Readiness score of 30.1 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/bot-butcher"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/bot-butcher/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/bot-butcher/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.