APIbase

APIbase.pro is an MCP gateway: one endpoint that gives AI agents access to a catalog of third‑party API tools, with pay‑per‑call pricing. The Integrator lets online stores accept payments from AI agents. Some pages on this site, in particular the guides, are written and reviewed with the help of AI. Facts about APIbase itself (fees, minimum order, payment rails, prices) are not written by the AI: they are inserted from the live product data and checked automatically before a page is published. Editorial responsibility for all content rests with the Operator.

APIbase publishes 1 API contract indexed on the APIs.io network: Tools API. Tagged areas include Gateways, Artificial Intelligence, MCP, and Payments.

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

APIbase’s developer surface includes changelog, authentication, API reference, documentation, pricing, support, signup flow, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

54.0/100 developing Agent 45/100 agent ready Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

AccessPaidSelf serve

1 published contract 1 Agent Skills

Gateways Artificial Intelligence MCP Payments

Kin Score

Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0

Composite quality — 54.0/100 · developing

Contract Quality 10.0 / 21

Developer Ergonomics 6.8 / 17

Access Clarity 13.0 / 17

Operational Transparency 5.8 / 11

Contract Governance 3.6 / 10

Discoverability 4.9 / 9

Regulatory Posture 5.1 / 15

Agent readiness — 45/100 · 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 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 8 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 5 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Payments 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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It updates itself when the score changes. Paste this where you link to your API docs:

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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)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
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
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

2 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 46.9 — up to +13.3 composite points
Developer Ergonomics scores 39.8 — up to +12.0 composite points
Contract Governance scores 35.6 — up to +7.7 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/apibase-pro/apis.yml: open an issue on github.com/api-evangelist/apibase-pro 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 5

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.

Agent2Agent

measured — observed by APIs.io (flavored)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

Universal Commerce Protocol (UCP)

measured — observed by APIs.io (self)

APIs 1

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

APIbase Tools API

The Tools API from APIbase — 1385 operation(s) for tools.

Agent Skills 1

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

weather-get-current

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Apibase Pro Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Apibase Pro Rate Limits

2 limits

RATE LIMITS

Semantic Vocabularies 1

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

Apibase Pro Context

1 classes · 2 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

APIbase API Rules

13 rules · 11 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.

Apibase Pro Openapi Overlay

0 actions · update

UNRECORDED

Security Posture 3

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

Apibase Pro Authentication

1 scheme

SECURITY

Apibase Pro Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Apibase Pro Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Apibase Pro Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Apibase Pro Agentic Access

1385 operations · 1032 acting · 7 human-in-the-loop

1385 operations · 1032 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

APIReference

APIReference

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

Security

Security

Authentication

Authentication

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

RateLimits

ChangeLog

Support

ChangeLog

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Source (apis.yml)

aid: apibase-pro
name: APIbase
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-02'
  method: derived
image: https://apibase.pro/og-image.png?v=20260928
description: 'APIbase.pro is an MCP gateway: one endpoint that gives AI agents access to a catalog of third‑party API tools,
  with pay‑per‑call pricing. The Integrator lets online stores accept payments from AI agents. Some pages on this site, in
  particular the guides, are written and reviewed with the help of AI. Facts about APIbase itself (fees, minimum order, payment
  rails, prices) are not written by the AI: they are inserted from the live product data and checked automatically before
  a page is published. Editorial responsibility for all content rests with the Operator.'
url: https://artifacts.apis.io/apibase-pro/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-01 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-01'
modified: '2026-11-01'
tags:
- Gateways
- Artificial Intelligence
- MCP
- Payments
tags_raw:
- API
- Gateway
- AI
- MCP
- Payments
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/apibase-pro-agentic-access.yml
- type: RateLimits
  url: rate-limits/apibase-pro-rate-limits.yml
- type: Plans
  url: plans/apibase-pro-plans-pricing.yml
- type: Spectral
  url: rules/apibase-pro-rules.yml
- type: JSONLD
  url: json-ld/apibase-pro-context.jsonld
- type: Vocabulary
  url: vocabulary/apibase-pro-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/apibase-pro-data-model.yml
- type: ChangeLog
  url: changelog/apibase-pro-changelog.yml
- type: Security
  url: https://github.com/whiteknightonhorse/APIbase/blob/main/SECURITY.md
- type: Authentication
  url: authentication/apibase-pro-authentication.yml
- type: ErrorCatalog
  url: errors/apibase-pro-problem-types.yml
- type: Conformance
  url: conformance/apibase-pro-conformance.yml
- type: LLMsTxt
  url: llms/apibase-pro-llms.txt
- type: AgentCard
  url: a2a/apibase-pro-a2a.yml
- type: SecurityTxt
  url: well-known/apibase-pro-security.txt
- type: WellKnown
  url: well-known/apibase-pro-well-known.yml
- type: Hosts
  url: hosts/apibase-pro-hosts.yml
- type: APIReference
  url: https://apibase.pro/llms.txt
- type: VulnerabilityDisclosure
  url: security/apibase-pro-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/apibase-pro-domain-security.yml
- type: Website
  url: https://apibase.pro/
- type: Documentation
  url: https://apibase.pro/guides/
- type: Pricing
  url: https://apibase.pro/pricing
- type: TermsOfService
  url: https://apibase.pro/terms
- type: PrivacyPolicy
  url: https://apibase.pro/privacy
- type: Support
  url: https://apibase.pro/contact
- type: GitHubOrganization
  url: https://github.com/whiteknightonhorse/APIbase
- type: ChangeLog
  url: https://github.com/whiteknightonhorse/APIbase/releases/tag/v2.2.0
- type: SignUp
  url: https://apibase.pro/onboard
apis:
- aid: apibase-pro:apibase-pro-tools-api
  name: APIbase Tools API
  description: The Tools API from APIbase — 1385 operation(s) for tools.
  humanURL: https://apibase.pro/guides/
  baseURL: https://apibase.pro
  tags:
  - Tools
  properties:
  - type: OpenAPI
    url: openapi/apibase-pro-tools-api-openapi.yml
x-enrichment:
  date: '2026-11-01'
  status: enriched
  artifacts_added: 41
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

APIbase — frequently asked questions

Does APIbase have an API?

Yes. APIs.io lists 1 API from APIbase, including APIbase Tools API.

Is there an OpenAPI specification for the APIbase?

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

How do I authenticate with the APIbase?

APIbase documents its authentication (1 scheme). The details are profiled on APIs.io as Apibase Pro Authentication.

How much does the APIbase cost?

APIs.io lists 3 pricing plans for APIbase, with each plan's price, limits and inclusions under Pricing Plans on this page.

Is the APIbase ready for AI agents?

APIbase has a Kin Score of 54.0 out of 100 (developing) and an Agent Readiness score of 44.7 (agent-ready), scored by API Evangelist on 2026-11-02.

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.

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