AI tools with a public API

Automation platform with an MIT-licensed core, billed one credit per run however many steps it has, with AI steps costing 2 to 20 credits.

Enterprise AI support agent across voice, chat, email and social, priced per conversation by default with a resolution option, plus documented REST APIs.

Adobe's generative image, video and audio app, with a published training-data position, Content Credentials on outputs and credit-metered premium models.

Market intelligence search over 500+ million filings, transcripts and broker research, with sentence-level citations back to the source document.

Hosted stealth browser sessions for agents with managed login identities and MFA, billed in credits plus browser-hours, proxy GB and per-AI-step fees.

Marketing copy tool metered on predictive performance scores (50-250 a month), not words; words are listed unlimited on every published tier.

MIT-licensed MCP server, hosted or local, that lets agents search and run Apify scraping Actors, with 29 documented tools and a 30 req/sec cap.

Contact database, sequencer and dialer in one account, with pooled credits that price an email reveal at 1 credit and a mobile number at 8.

Tool-calling runtime that holds user OAuth tokens and exposes a catalogue the vendor puts at 7,500+ tools over 81 MCP servers, metered per call.

Self-hosted LLM and agent tracing, evals and experiments built on OpenTelemetry, free to run under the Elastic License 2.0 with no usage caps.

All-in-one phone agent platform billing a single $0.14/min talk-time rate that covers LLM, speech-to-text and TTS, with telephony passed through at cost.

Eval-first platform for AI products: experiments, datasets, playgrounds and OTel tracing, free at 1 GB processed data and 10k scores a month.

MIT-licensed browser-agent library for Python and TypeScript, plus a pay-as-you-go cloud at $0.02 per browser-hour with CAPTCHA solving included.

Hosted headless-browser fleet for agents, metered in browser-hours, with live view, session replay, and CAPTCHA solving plus stealth on paid plans.

Design and presentation suite with AI uses capped per plan, a US$100 per person AI Pass add-on, and APIs that export designs to PDF or PPTX.

Anthropic's coding agent for terminal, IDE, desktop and web that commits and opens PRs; included from $20 a month or billed per API token.

Spreadsheet-style GTM workspace running waterfall enrichment, AI research and CRM sync on two separate meters: Actions and Data Credits.

Open-source coding agent for VS Code, JetBrains, CLI and desktop that asks approval per action; client is free, you pay for model tokens.

MIT-licensed npm SDK for stateful agents on Cloudflare Workers that can act as MCP server or client, with per-agent storage and cron scheduling.

Build or chat-generate rules-based strategies, backtest them, and run them in a Composer Securities brokerage account across NYSE and NASDAQ equities and ETFs.

Hosted tool-calling platform with 1,500+ app connectors, managed OAuth and a per-session MCP endpoint; free to 100,000 tool calls a month.

Flat-rate-per-workspace shared inbox and AI agent, EU-hosted, with a free-forever plan for two agents and AI metered as credits.

AI code editor whose cloud agents work on their own branch and open pull requests; Pro is $20 a month with extra usage billed at API rates.

Enterprise AI concierge for chat, email and voice, built from natural-language operating procedures, with built-in QA and A/B testing. Pricing is quote-only.

Transcript-based video and podcast editor metered by media hours and AI credits, with export resolution and watermark-free export gated by plan.

Cognition's cloud engineer takes tickets from Slack, Linear or Jira and opens pull requests; free tier, Pro $20 a month, Max $200 a month.

Voice agents priced at $0.08 per call minute with no telephony fee from ElevenLabs, but LLM tokens billed separately at cost on top.

Academic research agent over a 138M-paper index that runs reports and systematic reviews, citing AI claims at sentence level.

Search and agent API over an index Exa says serves 100 billion pages, plus a publications index, priced from $4 per 1,000 searches.

Meeting recorder with uncapped recordings on its free tier, a bot-free desktop capture mode, and automated consent emails for external scheduled calls.

Design tool with AI credits on every seat, content-training defaults published per plan, and Figma Make projects downloadable as a code zip.

Bot-based meeting notetaker with uncapped transcription but a stored-minutes limit per seat, a GraphQL API, and recording length tiered by plan.

FLUX image and video models on a pay-per-image API, plus open weights under separate non-commercial and self-hosted commercial licences.

Support automation suite with AI agents, ticket triage, agent assist and knowledge gap discovery, sold in three quote-only tiers with usage-based fees.

Web design and hosting tool with credit-metered AI agents, separate site and editor fees, and a published statement that there is no HTML export.

SEO and AI-visibility content platform that publishes exact monthly caps per plan for articles, audit pages, AI generations and API/MCP requests.

Freshdesk add-on that deflects email and chat tickets with a no-code AI agent, priced per 72-hour session on top of per-agent seats.

Ecommerce helpdesk whose AI Agent resolves order, return and subscription questions on email, chat, SMS and social, billed per interaction.

Writing assistant across 12 named apps, with AI prompt caps of 100 free, 2,000 on Pro and unlimited on Enterprise, plus per-plan model-training defaults.

Desktop and mobile notetaker that captures your computer's audio instead of sending a bot, and does not retain the audio after transcription.

Apache-2.0 Python framework wrapping LLM calls in input and output guards built from 65 Hub validators, with a self-hosted REST server.

Enterprise legal AI platform with agents, a document vault and legal research, deployable in US, EU, Swiss or Australian regions and sold by quote only.

Grid-based AI analysis for deal work; its integrations page names ASX and NZX filings alongside FactSet, S&P Global, PitchBook and SharePoint.

Apache-2.0 LLM observability and AI gateway with proxy or async logging; Hobby is free at 10k requests a month with 7-day retention.

Data notebook and app builder with an SQL and Python agent, YAML semantic models, and a YAML eval harness that grades the agent's answers.

Enterprise AI security platform in four modules: AI Discovery, AI Supply Chain Security (model scanning), AI Attack Simulation and AI Runtime Security.

Text-to-image tool strong on typography and logos, with a weekly free credit grant and an unlimited slower queue once paid monthly credits are spent.

Cold email sending platform with unlimited mailboxes and warmup, a 450M+ contact database, and credits priced per verified email found.

AI support agent billed per resolved outcome, running natively on Intercom or on top of an existing Zendesk, Salesforce, HubSpot or Freshdesk helpdesk.

AI research agents, screeners and factor signals for equities, crypto and FX, plus a SignalDB API selling value, quality and momentum factor data per signal.

Browser-based 2D takeoff and estimating with AI auto-measure, auto-count and a drawings chat agent, priced from $100 per user a month.

Runtime guardrails API that screens prompts, model output and agent tool calls, with EU, US and Singapore processing regions and a self-hosted option.

LLM and agent tracing, evals and prompt management with an MIT-licensed core you can self-host, plus a cloud tier free to 50k units a month.

LangChain's hosted tracing, evals and monitoring for LLM apps; Developer tier is $0 with 5k base traces a month and 14-day base retention.

Luma's video models in a credit-metered app, with credit cost published per clip by resolution and duration and commercial use tied to an active subscription.

AI scribe with data processing in Australia, two-way Bp Premier write-back, a free tier and a published $160 per month Pro plan.

Visual scenario builder billed in credits, where one module action on one bundle is one credit; routers, filters and error handlers cost nothing.

Add-on AI inside Word, Excel, Outlook, PowerPoint and Teams, priced per user on an annual commitment on top of a qualifying Microsoft 365 licence.

Workflow automation billed per workflow execution, not per step, with a free self-hostable Community edition under the Sustainable Use License.

Ambient scribe with dictation and coding, a hosting region chosen per organisation on Google Cloud, a 30-day trial and no published prices.

Apache-2.0 Python library for programmable input, dialog, retrieval, execution and output rails, configured with YAML plus Colang conversation flows.

Document automation for lenders: classifies and extracts from 1,700+ financial document types, with human review on low-confidence documents.

Governed BI where the AI emits semantic queries Omni compiles to SQL, with bi-directional dbt sync and published AWS and Azure hosting regions.

Turns long recordings into short vertical clips. Free output is watermarked and the terms license commercial use to paid users only.

Meeting notetaker whose bot joins Zoom, Meet and Teams as a visible guest, with per-user monthly minute caps on the free and Pro tiers.

AI search visibility tracker with fully published pricing from $29/mo and daily citation checks, but three of its seven engines are paid add-ons.

Conversational hiring assistant that screens candidates by chat or text and books interviews, with 19 named ATS integrations and an open API.

AI search analytics that runs tracked prompts daily across AI models and separates sources, inline citations and in-text links as distinct metrics.

Web-grounded research API returning answers plus a search_results source list, with a Sonar Deep Research model billed per search and citation token.

Product photography editor with background removal, AI backgrounds and fashion models, per-image API pricing, and commercial use limited to paid plans.

Enterprise answer-engine optimisation platform tracking brand mentions and citations across up to nine AI engines daily, plus AI crawler hits from CDN logs.

MIT-licensed CLI for LLM evals and automated red teaming, with 71 documented vulnerability plugins, 34 attack strategies and a quote-only enterprise tier.

AI layer inside Public's brokerage: Alpha research responses, agents that place conditional trades, and an MCP server for Claude, ChatGPT and others.

Inbound AI SDR that runs chat, voice and video conversations on your site and books meetings, metered by web sessions and active email contacts.

AI layer across Ramp's spend management for invoice coding, policy checks, auto-approvals and fraud scanning, priced publicly at $0 or $15 per user.

Design-focused generator for raster and editable SVG output, with per-model credit costs published and commercial rights granted only on paid plans.

Voice agent platform with a fully itemised bill: $0.055/min voice engine plus separately priced TTS, LLM, telephony and per-minute feature add-ons.

AI resume builder with Rezi Score, keyword targeting, AI mock interviews and an MCP server. Pro is $29 a month, or a $149 one-time Lifetime plan.

Browser spreadsheet with a built-in AI Analyst and live data connectors. Free forever tier allows 5 AI tasks a month; Plus 200, Pro 1,000.

Credit-metered generative video, image and audio models with per-second credit costs published per model and C2PA credentials on Runway-model output.

Candidate sourcing search with contact credits, ATS rediscovery and an AI screening add-on; Sourcing Core is $149 a month for 3 seats.

Underwriting AI for commercial P&C and life and health that reads submissions and medical records and cites each fact back to its source document.

AGPL-3.0 vision-based browser agent with a no-code workflow builder; cloud plans from $29/mo meter credits and add CAPTCHA solving and proxies.

Snowflake-native text-to-SQL REST API that answers only through a semantic view's logical tables, metrics, join paths and verified example queries.

Apache-2.0 browser API you can self-host with Docker, plus Steel Cloud sold by concurrent sessions with per-unit browser-hour, proxy and CAPTCHA rates.

Avatar presenter video billed at 100 credits per minute, with a live consent recording required for personal avatars and customer data stored in the EU.

No-code voice agent builder with a visual flow designer, now sold only on enterprise contracts the pricing page says start at $30,000 annually.

Web access API for agents whose Research endpoint runs multi-search reports with numbered, MLA, APA or Chicago citations.

Search and agent BI whose Spotter analyst scored 82.8% pass@1 on the BIRD text-to-SQL benchmark in ThoughtSpot's own published five-engine test.

Live chat with the Lyro AI agent for SMB and ecommerce sites, with a genuinely free plan and Lyro billed per AI conversation.

Institution-licensed integrity and assessment suite whose AI writing detection is an Originality add-on, reporting a document AI percentage to instructors only.

Developer voice-agent platform charging $0.05/min for its own orchestration, with the transcriber, LLM and voice you choose billed on top at provider cost.

Autonomous AP invoice processing with line-level GL coding and 2-to-4-way PO matching, integrating with Oracle, Microsoft Dynamics, Sage, Workday and Coupa.

Enterprise AI platform with a published no-training commitment, ISO 27001/27701/42001 certifications, 19 named connectors, SAML SSO and SCIM.

No-code automation across 10,234+ apps, billed per successfully completed action step; triggers, polling and built-in tools consume no tasks.

Hosted MCP server exposing your connected Zapier apps as agent tools over Streamable HTTP, metered at two Zapier tasks per successful tool call.

Enterprise customer service suite whose AI agents run across email, messaging, social and voice, billed per automated resolution.

AI data analyst whose generated SQL is validated against a git-backed semantic model and row and column security before it reaches your warehouse.