Vendors

OneShot’s tools run on third-party vendors. Which vendor serves a given call is our problem, not yours: you call local/search, we pick the provider, and you get one price and one receipt. This page maps that landscape by category. It is a directory of who operates in each space — not a list of live wiring. The provider behind any endpoint is selected per call and changes as we add and retire sources. Categories we build in-house are not listed: commerce, compute, web search, web read, email sending and LLM routing.

Voice agents & telephony

Vendor	What it does
	Voice agent orchestration over live calls
	Programmable voice, SMS and phone numbers
	Voice agent orchestration over live calls
	Voice agents with self-hosted telephony
	No-code voice agent builder with an API
	Carrier-grade voice and messaging on a private network
	Programmable voice and SMS
	Voice, SMS and verification APIs
	Wholesale voice and messaging carrier
	Global voice, SMS and WhatsApp delivery
	Realtime audio transport for voice agents
	WebRTC transport and voice agent pipelines

Speech & audio

Vendor	What it does
	Text-to-speech and voice cloning
	Speech-to-text and realtime transcription
	Speech-to-text with speaker and topic models
	Low-latency streaming text-to-speech
	Text-to-speech and voice cloning
	Multilingual speech-to-text

People & contact enrichment

Vendor	What it does
	Contact database with email and phone reveal
	Email finding and domain search
	Email finding, mobile lookup and verification
	Person and company records at scale
	Email finding and LinkedIn extraction
	Person search, enrichment and deep research
	Waterfall enrichment across many data sources
	B2B contact and company data
	GDPR-native email finding and cleaning
	Verified email finding for outbound
	Contact lookup across professional profiles
	Personal and work email discovery
	Waterfall email and mobile enrichment

Company & firmographic data

Vendor	What it does
	Knowledge graph of companies and people
	Company registry records across jurisdictions
	Business identity and registration verification
	Technology stack detection by domain
	Technology lookup and company enrichment
	Company signals from jobs, news and technologies
	Firmographic and employee datasets

Email verification

Vendor	What it does
	Email validation with activity scoring
	Real-time and bulk email validation
	Email verification with deliverability scoring
	Email verification API and bulk lists
	Email verification and toxicity checks
	Low-cost bulk email verification

Email deliverability & warmup

Vendor	What it does
	Mailbox warmup and spam placement testing
	Warmup pool bundled with cold outbound sending
	Warmup and rotation across many mailboxes
	Automated warmup with deliverability monitoring
	Deliverability remediation and placement fixes
	Inbox placement and spam filter testing
	Engagement-based reputation repair

Domains, DNS & registrars

Vendor	What it does
	Domain registration API
	Authoritative DNS and zone management
	Domain registration API
	Low-cost domain registration API
	Domain registration and bulk transfer API
	Domain registration across many TLDs
	Managed DNS and domain registration
	Automated DNS record setup on a user’s registrar

Browser automation & scraping

Vendor	What it does
	Hosted headless browsers with session replay
	Agent-driven browser navigation
	Open-source hosted browser API
	Authenticated browser sessions for agents
	Scalable headless browser infrastructure
	Browser sandboxes built for agent workloads
	Prebuilt scrapers and an actor runtime
	Proxy network and unblocking infrastructure
	Extraction API with automatic unblocking
	Proxies and scraper APIs

Maps, places & local data

Vendor	What it does
	Google Maps and search results as an API
	Places database with venue attributes
	Geocoding, search and mapping APIs
	Geocoding, routing and places data
	Geocoding and place search with generous limits
	Bulk extraction of maps listings and reviews

Documents & e-signature

Vendor	What it does
	Electronic signature envelopes
	Embedded e-signature API
	Document generation with signature workflow
	Open-source e-signature you can self-host
	Low-cost e-signature API
	Templated PDF generation

Media generation

Vendor	What it does
	Hosted inference for open image and video models
	Fast hosted image, video and audio models
	Text and image to video generation
	Video generation and 3D capture
	Avatar video generation and translation
	Corporate avatar video generation
	Personalised and conversational avatar video
	Talking-head video from a still image
	Music and song generation
	Image, video and audio generation models
	FLUX image generation and editing models
	Templated video and image rendering

Physical mail, gifting & rewards

Vendor	What it does
	Programmatic direct mail and address verification
	Print and mail API with address validation
	Robot-written handwritten notes
	Direct mail API for the UK and Europe
	Payouts and gift cards across many countries
	Gift card and reward delivery API
	Payout rails for gift cards and digital value

Shipping, delivery & travel

Vendor	What it does
	Multi-carrier shipping labels and rates
	Shipping labels, tracking and insurance
	Last-mile delivery dispatch and routing
	On-demand local courier delivery
	White-label local delivery fulfilment
	Flight search, booking and ancillaries
	Flight, hotel and travel content APIs
	Flight search and virtual interlining

Vendor	What it does
	Posting and reading on X
	Low-cost read access to X data
	One API for posting to many social networks
	LinkedIn, email and messaging account access
	Prebuilt social extraction and action flows
	LinkedIn profile and company data
	Reading and posting to Reddit
	Posting and reading on the AT Protocol

Get Started

SDK

Voice agents & telephony

Speech & audio

People & contact enrichment

Company & firmographic data

Email verification

Email deliverability & warmup

Domains, DNS & registrars

Browser automation & scraping

Maps, places & local data

Documents & e-signature

Media generation

Physical mail, gifting & rewards

Shipping, delivery & travel

​Voice agents & telephony

​Speech & audio

​People & contact enrichment

​Company & firmographic data

​Email verification

​Email deliverability & warmup

​Domains, DNS & registrars

​Browser automation & scraping

​Maps, places & local data

​Documents & e-signature

​Media generation

​Physical mail, gifting & rewards

​Shipping, delivery & travel

​Social distribution & social data

Voice agents & telephony

Speech & audio

People & contact enrichment

Company & firmographic data

Email verification

Email deliverability & warmup

Domains, DNS & registrars

Browser automation & scraping

Maps, places & local data

Documents & e-signature

Media generation

Physical mail, gifting & rewards

Shipping, delivery & travel

Social distribution & social data