Xproapi

Xproapi provides a developer API that monitors X (formerly Twitter) accounts, tracking who they follow and who follows them. It offers daily checks, alerts via Telegram, Discord, or email, and delivers follower/following data through a RESTful API. The service includes pricing tiers, a blog with updates, and clear terms and privacy policies.

Xproapi publishes 5 API contracts indexed on the APIs.io network, including Default API, Follow, Followings API, Tweet Activity API, and 2 more. Tagged areas include Company, X, Social, Monitoring, and Data.

The Xproapi catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Xproapi’s developer surface includes engineering blog, getting-started guide, documentation, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

31.7/100 thin ▼ -9.0 Agent 30/100 agent ready Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract

Company X Social Monitoring Data

Kin Score

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

Composite quality — 31.7/100 · thin

Contract Quality 10.7 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 4.9 / 17

Operational Transparency 1.2 / 11

Contract Governance 1.9 / 10

Discoverability 5.2 / 9

Regulatory Posture 2.2 / 15

Agent readiness — 30/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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/.

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/xproapi/"><img src="https://apis.io/badge/xproapi/card.svg" alt="Xproapi 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
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

6 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 19.0 — up to +16.2 composite points
Access Clarity scores 28.6 — up to +14.3 composite points
Contract Quality scores 50.5 — up to +12.4 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/xproapi/apis.yml: open an issue on github.com/api-evangelist/xproapi 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 5

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

Xproapi Default API

The default API from Xproapi — 2 operation(s) for default.

Xproapi Follow, Followings API

The Follow, Followings API from Xproapi — 3 operation(s) for follow, followings.

Xproapi Tweet Activity API

The Tweet Activity API from Xproapi — 8 operation(s) for tweet activity.

Xproapi Tweets API

The Tweets API from Xproapi — 1 operation(s) for tweets.

Xproapi Users API

The Users API from Xproapi — 5 operation(s) for users.

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Xproapi Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Xproapi API Rules

10 rules · 8 errors 1 warnings 1 info

SPECTRAL

Security Posture 1

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

Xproapi Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Xproapi Agentic Access

19 operations

19 operations · 0 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Spectral

Spectral

Webhooks

Webhooks

Conformance

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: xproapi
name: Xproapi
description: Xproapi provides a developer API that monitors X (formerly Twitter) accounts, tracking who they follow and who
  follows them. It offers daily checks, alerts via Telegram, Discord, or email, and delivers follower/following data through
  a RESTful API. The service includes pricing tiers, a blog with updates, and clear terms and privacy policies.
url: https://raw.githubusercontent.com/api-evangelist/xproapi/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-14 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.20'
created: '2026-10-14'
modified: '2026-10-14'
tags:
- Company
- X
- Social
- Monitoring
- Data
tags_raw:
- Company
- API
- X
- Social
- Monitoring
- Data
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/xproapi-agentic-access.yml
- type: Spectral
  url: rules/xproapi-rules.yml
- type: Webhooks
  url: asyncapi/xproapi-webhooks.yml
- type: Conformance
  url: conformance/xproapi-conformance.yml
- type: LLMsTxt
  url: llms/xproapi-llms.txt
- type: Hosts
  url: hosts/xproapi-hosts.yml
- type: Vendors
  url: vendors/xproapi-vendors.yml
- type: Packages
  url: packages/xproapi-packages.yml
- type: TermsOfService
  url: https://xproapi.com/terms
- type: SDKs
  url: https://xproapi.com/sdks/
- type: PrivacyPolicy
  url: https://xproapi.com/privacy
- type: Login
  url: https://xproapi.com/login/
- type: GitHubOrganization
  url: https://github.com/Xproapi-LLC
- type: Blog
  url: https://xproapi.com/blog/
- type: GettingStarted
  url: https://xproapi.com/blog/getting-started-track-your-first-x-account-in-five-minutes
- type: DomainSecurity
  url: security/xproapi-domain-security.yml
- type: Website
  url: https://xproapi.com
- type: Documentation
  url: https://xproapi.com/docs
apis:
- aid: xproapi:xproapi-default-api
  name: Xproapi Default API
  description: The default API from Xproapi — 2 operation(s) for default.
  humanURL: https://xproapi.com/docs/
  tags: []
  tags_raw:
  - default
  properties:
  - type: OpenAPI
    url: openapi/xproapi-default-api-openapi.yml
- aid: xproapi:xproapi-follow-followings-api
  name: Xproapi Follow, Followings API
  description: The Follow, Followings API from Xproapi — 3 operation(s) for follow, followings.
  humanURL: https://xproapi.com/docs/
  tags:
  - Follow, Followings
  properties:
  - type: OpenAPI
    url: openapi/xproapi-follow-followings-api-openapi.yml
- aid: xproapi:xproapi-tweet-activity-api
  name: Xproapi Tweet Activity API
  description: The Tweet Activity API from Xproapi — 8 operation(s) for tweet activity.
  humanURL: https://xproapi.com/docs/
  tags:
  - Tweet Activity
  properties:
  - type: OpenAPI
    url: openapi/xproapi-tweet-activity-api-openapi.yml
- aid: xproapi:xproapi-tweets-api
  name: Xproapi Tweets API
  description: The Tweets API from Xproapi — 1 operation(s) for tweets.
  humanURL: https://xproapi.com/docs/
  tags:
  - Tweets
  properties:
  - type: OpenAPI
    url: openapi/xproapi-tweets-api-openapi.yml
- aid: xproapi:xproapi-users-api
  name: Xproapi Users API
  description: The Users API from Xproapi — 5 operation(s) for users.
  humanURL: https://xproapi.com/docs/
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/xproapi-users-api-openapi.yml
x-submission-notes: 'Tracks who any X account follows / is followed by — scraping/resale of X data, surveillance of third-party
  accounts | Kin approved listing 2026-10-14 (case-by-case: Tracks who any X account follows / is followed by — scraping/resale
  of X data, surveillance of third-party accounts)'
x-submission-probe: root 200, docs 200; soft-404 ok
x-submitted-by: support@xproapi.com (apis.io/add, 2026-10-14)
x-enrichment:
  date: '2026-10-14'
  status: enriched
  artifacts_added: 13
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Xproapi — frequently asked questions

Does Xproapi have an API?

Yes. APIs.io lists 5 APIs from Xproapi, including Xproapi Default API, Xproapi Follow, Followings API and Xproapi Tweet Activity API, and 2 more.

Is there an OpenAPI specification for the Xproapi?

Yes. APIs.io indexes 5 OpenAPI specifications for Xproapi, each linked for download from this page.

Is the Xproapi ready for AI agents?

Xproapi has a Kin Score of 31.7 out of 100 (thin) and an Agent Readiness score of 29.7 (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/xproapi"

All providers

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

Every operation they expose

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

How their score was established

curl "https://apis.io/api/v1/providers/xproapi/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.