emerging · -1.0 market domain

Calls

Score 21.6 / 100 0 providers +64 via APIs 68 APIs Search apis.io →
Business capabilities this tag reaches
Customer Service Management 6 Developer Platform & API Ecosystem Management 1 Information & Data Management 1
A resource tag, not a market

No company describes its business as “Calls”. It names something an API does — and 64 providers reach it through a specification or operation tag. The APIs below are the answer to this tag; the companies are not.

Providers using this tag (0)

No company classifies itself here — see the resource-tag note above, and the APIs below.

APIs with this tag (66)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 5 Complete, well-documented, and agent-ready
Twilio Calls APIInitiate, manage, and monitor voice calls77.8Leadping Calls APIManages outbound Leadping calls and active call-control workflows. Use these endpoints to initiate or cance...74.9Zendesk Sell Calls APIThe Zendesk Sell Calls API lets you create, read, and delete call records in your CRM. Calls can be associa...72.2Sinch Calls APIManage ongoing calls or retrieve information about a call. Supports updating call properties and hanging up...68.3Slack Calls APIThe Calls API from Slack — 6 operation(s) for calls.67.9
Strong 20 Solid coverage with minor gaps
SignalWire Calls APIManage voice calls and call recordings.65.4Apollo.io Calls APIPhone-call records — log, search and update dialer activity. 3 operation(s) from the published Apollo OpenAPI.65.1Gong Calls APIOperations for managing and retrieving call data64.7Amigo Calls APIThe Calls API from Amigo — 10 operation(s) for calls.64.3Salesloft Calls API[https://developer.salesloft.com/docs/api/calls/](https://developer.salesloft.com/docs/api/calls/)63.5Bandwidth Calls APICreate, retrieve, and manage phone calls. Supports outbound call creation, call state queries, and in-progr...62.7Apollo API CallsLog and update call records made inside or outside Apollo. Harvested from the Apollo-published OpenAPI 3.1 ...62.2The Mobile First Company Calls APIRetrieve and search call records with filtering and pagination. Filter calls by your Allo phone number.62.0Microsoft Graph Communications APICreate and join online meetings, manage call records, and enable cloud communications capabilities for appl...61.9DialNexa Calls APIThe Calls API from DialNexa — 2 operation(s) for calls.61.2Salesflare Calls APIThe Calls API from Salesflare — 2 operation(s) for calls.60.8Bem Calls APIThe Calls API provides a unified interface for invoking both **Workflows** and **Functions**. Use this API ...60.1Nooks Calls APIAccess call records60.0Synthflow Platform APIThe Synthflow Platform API provides REST endpoints to manage assistants, phone numbers, calls, knowledge ba...60.0Fixie Calls APIThe calls API from Fixie — 13 operation(s) for calls.57.9Vanilla Forums Calls APIThe Calls API from Vanilla Forums — 1 operation(s) for calls.57.9CloudTalk Calls APIAll data you can get about your calls.56.7Microsoft Teams Calls APIOperations for initiating and managing calls.56.4Avoma Calls APIThe Calls API from Avoma — 2 operation(s) for calls.55.9Coperniq Calls APIThe calls API from Coperniq — 3 operation(s) for calls.55.4
Developing 26 Usable, with meaningful gaps to close
Beyond Presence Calls APIThe Calls API from Beyond Presence — 3 operation(s) for calls.53.6ServiceTitan Telecom APIRetrieve inbound and outbound call records, call recordings, call analytics, and call reasons. Powers Conta...53.6SLNG Calls APICall dispatch and status.53.6Avaya Calls APITrigger and complete calls52.5Cisco Expressway Calls APIActive and historical call information52.5Quo Calls APIOperations related to calls52.5VoiceGenie Calls APIPlace and track voice calls.52.4APIContext Calls APIAPI call (test) definitions51.1CallRail Calls APIThe Calls API from CallRail — 6 operation(s) for calls, including summary and time series reporting.50.7CallRail v3 APIREST API providing programmatic access to CallRail accounts, companies, tracking numbers, calls, text messa...50.7Benzinga Calls APIThe calls API from Benzinga — 2 operation(s) for calls.49.8Benzinga Earnings Call Transcripts APIReal-time and historical conference-call transcripts, audio, AI-generated summaries, and speaker data, fetc...49.8Veritus Calls APIThe Calls API from Veritus — 2 operation(s) for calls.49.5Front Calls APIThe Calls API from Front — 5 operation(s) for calls.49.3Ando Calls APICall detail and transcript routes.46.3Sendbird Calls APIThe Sendbird Calls API provides voice and video calling capabilities, enabling real-time one-on-one and gro...45.8Root Insurance Calls APIThe Calls API from Root Insurance — 4 operation(s) for calls.43.2ButterflyMX Calls APIThe Calls API from ButterflyMX — 2 operation(s) for calls.42.8AgentPhone Calls APIThe calls API from AgentPhone — 8 operation(s) for calls.42.2freshworks Calls APIAccess call records, call details, and call metrics from the Freshcaller system.41.8Weights and Biases Calls APIThe Calls API from Weights and Biases — 8 operation(s) for calls.41.7Cartesia Calls APIOutbound call placement, batching, and history.41.4Sarj AI Developer API Calls APICreate outbound voice calls and retrieve call details and transcripts.41.3Weights & Biases Calls APIThe Calls API from Weights & Biases — 8 operation(s) for calls.41.3Avoca Calls APICall records, transcripts, and pre-call transfers41.2Plivo Voice Call APIThe Plivo Voice Call API initiates outbound calls, retrieves details for live and historical calls, and sup...40.5
Thin 13 Limited public surface area
Wazo Calls APIThe calls API from Wazo — 27 operation(s) for calls.38.4Vapi Calls APIThe Calls API from Vapi — 2 operation(s) for calls.35.5Layercode Calls APIThe Calls API from Layercode — 1 operation(s) for calls.34.6JustCall Calls APIManage and query voice calls handled through JustCall.34.2Vocode Calls APIThe Calls API from Vocode — 5 operation(s) for calls.34.0Freshsales Calls APIThe Calls API from Freshsales — 1 operation(s) for calls.33.0Windstream Holdings Calls APICall management and control32.6Bland AI Calls APISend, list, retrieve, and stop AI phone calls.32.5Bland AI Platform APIREST API for sending and managing AI phone calls, pathways (conversation flows), voices and voice clones, p...32.546elks Calls APIMake and receive programmable voice calls.31.9Aircall Calls APIThe Calls API from Aircall — 7 operation(s) for calls.31.3Dialpad Calls APIThe Calls API from Dialpad — 7 operation(s) for calls.28.8Tenfold Calls APIOriginate, query, control, and update calls28.7
Emerging 2 Early or largely undocumented
Samora AI Calls APITrigger and retrieve individual outbound calls.26.1Follow Up Boss Calls APIThe Calls API from Follow Up Boss — 2 operation(s) for calls.18.6

Companies reaching this through an API (64)

These companies publish an API, specification or operation carrying “Calls” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

46elks AgentPhone Aircall Amigo Ando APIContext Apollo API Documentation Apollo.io Avaya Avoca Avoma Bandwidth Bem Benzinga Beyond Presence Bird Bland AI ButterflyMX CallRail Cartesia Cisco Expressway CloudTalk Coperniq DialNexa Dialpad Fixie Follow Up Boss Freshsales Freshworks Front Gong JustCall Layercode Leadping Microsoft Office 365 Microsoft Teams Nooks Plivo Quo Root Insurance Salesflare Salesloft Samora AI Sarj AI Developer API Sendbird ServiceTitan SignalWire Sinch Slack SLNG
Show all 64 companies ↓
Synthflow Tenfold The Mobile First Company Twilio Vanilla Forums Vapi Veritus Vocode VoiceGenie Wazo Weights & Biases Weights and Biases Windstream Holdings Zendesk

Score breakdown

Frequency
59.5
log-scaled weighted occurrences
Breadth
0.0
spread across providers
Quality lift
25.2
mean composite of providers using it
Cohesion
11.4
strength of nearest seed neighbor

Related tags

Phone Numbers 18 co-occurrences Telephony 20 co-occurrences Voice Agents 11 co-occurrences Voice 29 co-occurrences SIP 7 co-occurrences Numbers 7 co-occurrences Recording 10 co-occurrences Conversations 17 co-occurrences

Where this tag comes from

Api tag69
Openapi tag46
Openapi op tag210

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