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Seed Developer APIs Companies

Explore 245 developer apis startups that raised seed funding. Access verified founder contact information and fundraising data.

Total Companies
245
Total Funding
$73.7M
Avg Funding
$3.7M
Cities
13

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San Francisco, United States
$350K
raised

Makini is One API for All industrial enterprise integrations

Jan 2022
Seed

Founder Contacts

30,000+ verified contacts

Wilmington, United States
$2.5M
raised

Silverhand specializes in providing open-source technology solutions.

Jan 2022
Seed

Founder Contacts

30,000+ verified contacts

Prague, Czech Republic
$3.0M
raised

Superface is an IT firm offering LLM powered work automation agent for SMBs.

Jan 2022
Seed

Founder Contacts

30,000+ verified contacts

Toronto, Canada
$750K
raised

One API for Every crypto integration. Vezgo, a Crypto SaaS API, helps fintechs onboard Web3 users faster and easier.

Nov 2022
Pre-Seed

Founder Contacts

30,000+ verified contacts

Herndon, United States
$13.5M
raised

Revenium Control Costs Optimize your spending.

Nov 2025
Seed

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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San Francisco, United States

Sieve supplies video data to frontier AI labs.

Nov 2022
Seed

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$4.0M
raised

Performance & availability monitoring for the cloud apps your SaaS depends on

Nov 2022
Seed

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$500K
raised

Captain Technologies offers an API solution to make unstructured data searchable in natural language.

Nov 2025
Pre-Seed

Founder Contacts

30,000+ verified contacts

Espoo, Finland
$587K
raised

Effortless, secure Open Banking access. One API to connect to business & personal accounts across 29 European countries.

Oct 2022
Seed

Founder Contacts

30,000+ verified contacts

San Jose, United States
$4.0M
raised

Synqly is an Integration-as-a-Service Platform that provides a cybersecurity integration ecosystem with AI-enabled integrations.

Oct 2023
Seed

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Miami, United States
$440K
raised

A Google certified CMP. Get, centralize and use users consents.

Oct 2021
Pre-Seed

Founder Contacts

30,000+ verified contacts

Orlando, United States
$350K
raised

Rethinking the way that Identities and Security are integrated, protected and exposed

Oct 2022
Pre-Seed

Founder Contacts

30,000+ verified contacts

San Diego, United States
$3.8M
raised

GoShare is an on-demand delivery & logistics platform that connects businesses with a nationwide network of trusted delivery professionals.

Oct 2021
Seed

Founder Contacts

30,000+ verified contacts

San Jose, United States
$14.0M
raised

Monoly provides a decentralized SaaS platform and its applications for enterprise.

Oct 2022
Seed

Founder Contacts

30,000+ verified contacts

Paris, France
$2.9M
raised

The Agent Gateway. Cut Token Costs up to 50%.

Oct 2024
Pre-Seed

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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No credit card required
San Francisco, United States
$500K
raised

Synthetic is an online platform that lets users run and interact with open‑source large language models privately without storing user data.

Oct 2025
Pre-Seed

Founder Contacts

30,000+ verified contacts

Berlin, Germany
$2.1M
raised

Nomos is an IT company that develops embedded dynamic energy plans and Implements them in days instead of months.

Oct 2024
Pre-Seed

Founder Contacts

30,000+ verified contacts

Los Angeles, United States

Stipop offers messaging, video, and profile stickers for apps intended to enrich online communication.

Oct 2021
Seed

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$6.5M
raised

HTTPie is a software development company that designs an API management platform to create testing tools.

Oct 2021
Seed

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$14.0M
raised

Rye powers the future of agentic commerce with the Universal Checkout API

Oct 2022
Seed

Founder Contacts

30,000+ verified contacts

Showing 226 to 245 of 245 companies

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245 Developer APIs Seed Startups (August 2026) — Page 10 | VCBacked