Bitcall

Bitcall provides a self‑service telecom platform offering cheap international voice termination, virtual numbers, SMS OTP verification, eSIM data plans, HLR/number lookup and account balance services, all accessible via a unified API key. Users can rent numbers, send bulk SMS, obtain one‑time passcodes, and manage eSIM subscriptions through the Bitcall API gateway.

Bitcall publishes 1 API on the APIs.io network. Tagged areas include Telecommunications, VoIP, SMS, and eSIM.

The Bitcall catalog on APIs.io includes 1 Spectral governance ruleset.

Bitcall’s developer surface includes authentication, support, engineering blog, getting-started guide, documentation, and 14 more developer resources.

🌐 Visit website 📡 Source on GitHub
28.3/100 thin Agent 7/100 agent aware Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0
1 API
TelecommunicationsVoIPSMSeSIM

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-04 · rubric v0.23.0
Composite quality — 28.3/100 · thin
Contract Quality 0.0 / 21
Developer Ergonomics 8.5 / 17
Access Clarity 5.8 / 17
Operational Transparency 2.3 / 11
Contract Governance 1.9 / 10
Discoverability 5.5 / 9
Regulatory Posture 3.1 / 15
Agent readiness — 7/100 · agent aware
Machine-Readable Contract 0 / 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 0 / 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 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
Regulatory Posture applies to this provider. Its tags matched the Telecommunications 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/.
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 github.com/api-evangelist/bitcall: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

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

OTP

Rent numbers and receive one-time passcodes via the Bitcall OTP API.

Rate Limits 1

Documented rate limits and quota policies.

Bitcall Rate Limits

1 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Bitcall API Rules

10 rules · 8 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Bitcall Authentication

2 schemes

SECURITY

Bitcall Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Bitcall Agentic Access

1 operation · 1 acting

1 operations · 1 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Login
Login
 DeveloperPortal
DeveloperPortal
 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
 Conventions
Conventions
 Conformance
Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits
RateLimits
 Support
Support

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)

apis.yml Raw ↑ 
aid: bitcall
name: Bitcall
image: https://bitcall.io/images/og/bitcall-home-en.jpg
description: Bitcall provides a self‑service telecom platform offering cheap international voice termination, virtual numbers,
  SMS OTP verification, eSIM data plans, HLR/number lookup and account balance services, all accessible via a unified API
  key. Users can rent numbers, send bulk SMS, obtain one‑time passcodes, and manage eSIM subscriptions through the Bitcall
  API gateway.
url: https://raw.githubusercontent.com/api-evangelist/bitcall/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-03 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-03'
modified: '2026-10-03'
tags:
- Telecommunications
- VoIP
- SMS
- eSIM
tags_raw:
- Telecom
- VoIP
- SMS
- eSIM
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/bitcall-agentic-access.yml
- type: RateLimits
  url: rate-limits/bitcall-rate-limits.yml
- type: Spectral
  url: rules/bitcall-rules.yml
- type: Conventions
  url: conventions/bitcall-conventions.yml
- type: Authentication
  url: authentication/bitcall-authentication.yml
- type: Conformance
  url: conformance/bitcall-conformance.yml
- type: LLMsTxt
  url: llms/bitcall-llms.txt
- type: Hosts
  url: hosts/bitcall-hosts.yml
- type: Vendors
  url: vendors/bitcall-vendors.yml
- type: TermsOfService
  url: https://bitcall.io/legal/terms
- type: Support
  url: https://bitcall.io/help-center
- type: PrivacyPolicy
  url: https://bitcall.io/legal/privacy
- type: Login
  url: https://panel.bitcall.io/en/login
- type: DeveloperPortal
  url: https://portal.bitcall.io
- type: Blog
  url: https://bitcall.io/blog
- type: GettingStarted
  url: https://docs.bitcall.io/docs/quickstart
- type: DomainSecurity
  url: security/bitcall-domain-security.yml
- type: Website
  url: https://bitcall.io
- type: Documentation
  url: https://docs.bitcall.io
apis:
- name: OTP
  description: Rent numbers and receive one-time passcodes via the Bitcall OTP API.
  humanURL: https://docs.bitcall.io/openapi/otp.json
  baseURL: https://api.bitcall.io
  aid: bitcall:otp
x-submission-notes: Rent virtual numbers for SMS OTP verification, travel eSIM plans, HLR/number lookup and account balance
  under one API key at api.bitcall.io.
x-submission-probe: root 200; docs 200; docs/openapi/otp.json 200 OpenAPI 3.0.3 'Bitcall OTP API'; api.bitcall.io 404 JSON
  error envelope (live API host); /zz-not-real-404 real 404; no repo api-evangelist/bitcall or bitcall-io
x-submitted-by: support@bitcall.io (apis.io/add, 2026-10-02)
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  method: derived
  generated: '2026-10-03'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company publishes developer documentation but serves no machine-readable contract from it
  evidence:
  - url: https://bitcall.io
    status: 200
x-enrichment:
  date: '2026-10-03'
  status: enriched
  artifacts_added: 13
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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