APIHub

APIHub is a marketplace where AI agents discover, pay for, and consume monitored APIs through a single endpoint. Powered by x402 and USDC on Base, it offers a unified MCP-native experience with per‑request pricing, no wallet required, and tools for agents to integrate APIs seamlessly. The platform provides documentation, SDKs, and a CLI for easy onboarding, enabling agents to call APIs via a proxy with a simple Bearer key.

APIHub is listed with 2 APIs on the APIs.io network. Tagged areas include Marketplace, MCP, Artificial Intelligence, and Payments.

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

APIHub’s developer surface includes CLI, authentication, documentation, API reference, getting-started guide, support, signup flow, and 22 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

43.8/100 developing Agent 26/100 agent aware Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

2 APIs 1 MCP Servers

Marketplace MCP Artificial Intelligence Payments

Kin Score

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

Composite quality — 43.8/100 · developing

Contract Quality 5.6 / 21

Developer Ergonomics 11.7 / 17

Access Clarity 5.8 / 17

Operational Transparency 5.8 / 11

Contract Governance 2.2 / 10

Discoverability 4.8 / 9

Regulatory Posture 4.4 / 15

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 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 0 / 5

Well-Known Catalog 0 / 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 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 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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Agent readiness — checks not met, largest first (exact, from this profile):

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)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
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

7 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 26.3 — up to +18.4 composite points
Access Clarity scores 34.2 — up to +13.2 composite points
Contract Governance scores 22.0 — up to +9.4 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/apihub-io/apis.yml: open an issue on github.com/api-evangelist/apihub-io 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 2

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)

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

APIs 2

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

APIHub API

Every public APIHub endpoint with parameters, request, and response examples.

APIHub API

APIHub API as documented publicly: 257 operations. Contract generated from the documentation by API Evangelist (2026-11-01); not the provider's own document.

MCP Servers 1

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

APIHub MCP Server

Remote MCP server at api.apihub.io.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Apihub Io Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Apihub Io Rate Limits

5 limits

RATE LIMITS

Semantic Vocabularies 1

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

Apihub Io Context

50 classes · 95 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

APIHub API Rules

12 rules · 9 errors 2 warnings 1 info

SPECTRAL

JSON Schema 6

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

GetSlugFetchResponse

6 properties

JSON SCHEMA

GetV1WalletBalanceResponse

5 properties

JSON SCHEMA

PostExecuteResponse

5 properties

JSON SCHEMA

PostExternalResponse

5 properties

JSON SCHEMA

PostV1RegisterRequest

4 properties

JSON SCHEMA

PostV1RegisterResponse

5 properties

JSON SCHEMA

Security Posture 2

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

Apihub Io Authentication

1 scheme

SECURITY

Apihub Io Domain Security

TLSv1.3 · HSTS

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Apihub Io Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Lifecycle

ErrorCatalog

Conformance

Scroll for all 7

Build 4

SDKs, sample code, and the tooling you integrate with

CLI

CLI

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

StatusPage

StatusPage

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: apihub-io
name: APIHub
description: APIHub is a marketplace where AI agents discover, pay for, and consume monitored APIs through a single endpoint.
  Powered by x402 and USDC on Base, it offers a unified MCP-native experience with per‑request pricing, no wallet required,
  and tools for agents to integrate APIs seamlessly. The platform provides documentation, SDKs, and a CLI for easy onboarding,
  enabling agents to call APIs via a proxy with a simple Bearer key.
url: https://artifacts.apis.io/apihub-io/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)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: unreadable
  source:
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-02'
  method: derived
specificationVersion: '0.20'
created: '2026-11-01'
modified: '2026-11-01'
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: API reference lists endpoints but no OpenAPI/AsyncAPI/GraphQL/WSDL contract is published.
  evidence:
  - url: https://apihub.io/docs/api-reference
    status: 200
  checked: '2026-11-01'
tags:
- Marketplace
- MCP
- Artificial Intelligence
- Payments
tags_raw:
- Marketplace
- MCP
- AI
- Payments
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://apihub.io/icon.svg
common:
- type: RateLimits
  url: rate-limits/apihub-io-rate-limits.yml
- type: Spectral
  url: rules/apihub-io-rules.yml
- type: JSONLD
  url: json-ld/apihub-io-context.jsonld
- type: Vocabulary
  url: vocabulary/apihub-io-vocabulary.yml
- type: DataModel
  url: data-model/apihub-io-data-model.yml
- type: CLI
  url: cli/apihub-io-cli.yml
- type: Authentication
  url: authentication/apihub-io-authentication.yml
- type: Lifecycle
  url: lifecycle/apihub-io-lifecycle.yml
- type: ErrorCatalog
  url: errors/apihub-io-problem-types.yml
- type: Conformance
  url: conformance/apihub-io-conformance.yml
- type: LLMsTxt
  url: llms/apihub-io-llms.txt
- type: AgentCard
  url: a2a/apihub-io-a2a.yml
- type: MCPServer
  url: mcp/apihub-io-mcp.yml
- type: Hosts
  url: hosts/apihub-io-hosts.yml
- type: Vendors
  url: vendors/apihub-io-vendors.yml
- type: SDKs
  url: packages/apihub-io-packages.yml
- type: Packages
  url: packages/apihub-io-packages.yml
- type: StatusPage
  url: https://apihub.io/status
- type: DeveloperPortal
  url: https://dev.apihub.io/
- type: DomainSecurity
  url: security/apihub-io-domain-security.yml
- type: Website
  url: https://apihub.io/
- type: Documentation
  url: https://apihub.io/docs
- type: APIReference
  url: https://apihub.io/docs/api-reference
- type: GettingStarted
  url: https://apihub.io/docs/getting-started
- type: Support
  url: https://apihub.io/contact
- type: SignUp
  url: https://apihub.io/login
- type: TermsOfService
  url: https://apihub.io/terms
- type: PrivacyPolicy
  url: https://apihub.io/privacy
- type: GitHubOrganization
  url: https://github.com/apihubio
apis:
- name: APIHub API
  description: Every public APIHub endpoint with parameters, request, and response examples.
  humanURL: https://apihub.io/docs/api-reference
  baseURL: https://api.apihub.io
  aid: apihub-io:apihub-api
- aid: apihub-io:apihub-io-api
  name: APIHub API
  description: 'APIHub API as documented publicly: 257 operations. Contract generated from the documentation by API Evangelist
    (2026-11-01); not

    the provider''s own document.'
  humanURL: https://apihub.io/docs/api-reference
  baseURL: https://proxy.apihub.io
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/apihub-io-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/apihub-io-get-slug-fetch-response-schema.json
  - type: JSONSchema
    url: json-schema/apihub-io-get-v1-wallet-balance-response-schema.json
  - type: JSONSchema
    url: json-schema/apihub-io-post-v1-register-response-schema.json
  - type: JSONSchema
    url: json-schema/apihub-io-post-v1-register-request-schema.json
  - type: JSONSchema
    url: json-schema/apihub-io-post-external-response-schema.json
  - type: JSONSchema
    url: json-schema/apihub-io-post-execute-response-schema.json
x-enrichment:
  date: '2026-11-01'
  status: enriched
  artifacts_added: 42
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

APIHub — frequently asked questions

Does APIHub have an API?

Yes. APIs.io lists 2 APIs from APIHub, including APIHub API and APIHub API.

Is there an OpenAPI specification for the APIHub?

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

How do I authenticate with the APIHub?

APIHub uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Apihub Io Authentication.

Does APIHub have an MCP server?

Yes. APIs.io lists 1 MCP server for APIHub: Remote MCP server at api.apihub.io.

Is the APIHub ready for AI agents?

APIHub has a Kin Score of 43.8 out of 100 (developing) and an Agent Readiness score of 25.8 (agent-aware), 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.

All 92 tools →

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How their score was established

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