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AI Development Tools
AI Evaluation & Observability
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News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$5M
1 round on record
Latest round
$5M
Venture round · Mar 2026 · 6 mo ago
Team
51-200
employees, estimated range
Hiring now
8
open roles
Backers
1
Y Combinator
The money's age
Fresh money
6 months since the last round · hiring slowed
Momentum
35/100
fresh money, rising traction
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Mar 18
Raised a round Venture round $5M · SiliconANGLE
Jan 2024
Went through Y Combinator
2023
Founded
Tractionpublic signals, read monthly
Web presence
top 5%
of 133.2M domains by links, Common Crawl
Hacker News stories
2
best: 3 points
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | Mar 2026 | $5M | — | SiliconANGLE |
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
Similar startupsby what they do, their industry and backers

PromptLayer is a New York company founded in 2022 that provides prompt management and observability for language model applications. It…

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Mastra is a TypeScript-first platform and framework for building, running, observing, and iterating production AI agents and agentic…

Braintrust is a San Francisco company founded in 2023 that provides evaluation and observability tooling for teams shipping large language…

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Overview
Respan, which launched as Keywords AI, builds the observability and evaluation layer that engineers rely on to trace, debug and improve applications built on large language models. Its platform records every prompt, tool call and response, scores them against curated test sets and shows exactly where quality, latency or cost regressed between releases, so teams can ship model changes with the same discipline they apply to ordinary software. The product is used by startups running AI features in production at scale.
News
Respan: Interview With Founder & CEO Andy Li About The AI Engineering Platform
Respan is a proactive, full-stack AI engineering platform that provides a unified control plane for developers to trace, evaluate, and monitor LLM agent behavior while offering an AI gateway to improve production performance. Pulse 2.0 interviewed Respan
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Report
AI developer tools landscape
Explore AI developer tools across LLM providers, vector databases, agent frameworks, observability, coding agents, and more.
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Report
Respan: $5 Million Raised For AI Observability Platform To Improve Agent Performance
Respan, an AI observability platform focused on improving the performance and reliability of AI agents, announced it has raised $5 million in funding. The round included backing from Gradient, Y Combinator, Hat-Trick Capital, XIAOXIAO FUND, Antigravity Ca
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Report
Respan Announces $5M in Funding from Gradient, Y Combinator and others; Launches First Proactive AI Observability Platform
Respan helping more than 100 startups and enterprise teams proactively improve AI agents and prevent hallucinations and failures
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Report
Respan raises $5M to bring proactive observability to AI agents
Respan raises $5M to bring proactive observability to AI agents - SiliconANGLE
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Report
Report
Tech stack
Technologies named in job postings at Respan over the last 12 months, by layer, with the share of postings for each.
Technologies in use
16
Postings analysed
8
Stack modernity
87/100AI adopter
Languages
TypeScript
JavaScript
Python
Node JS
Frameworks & libraries
React.js
Next.js
Databases
ClickHouse
PostgreSQL
Cloud & platforms
Figma
AI & ML
LLM
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Full Respan tech stack
16 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$111k
Typical range
$72k – $150k
Open positions
2
2
Jobs
Intern
50%
Junior
50%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Intern | 1 | $72k | $72k |
| Junior | 1 | $150k | $150k |
Highest paying role
Founding Technical GTM
$150k
Normalized to USD per year
Growth
Hiring Momentum
59/100
Growing
Open positions
8
0 opened / 0 closed in 30 days
Median time-to-fill
48 days
faster than 28% of the market
ATS activity
Every ~4 hours
10/16/2026
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Backend
30% ▼
Frontend
20% ▼
Sales
20% ▲
Design
10% ▼
Marketing
10% ▲
Operations
10% ▲
Activity Timeline
Added Discord to stack
Sep 2026
Added LinkedIn to stack
Sep 2026
Added OpenAI Codex to stack
Aug 2026
Added Mixpanel to stack
Aug 2026
Added Amplitude to stack
Aug 2026
Added Cursor to stack
Aug 2026
Added Claude Code to stack
Aug 2026
Added Claude to stack
Aug 2026
Added RAG to stack
Aug 2026
Added Prompt Engineering to stack
Aug 2026
Added LLM to stack
Aug 2026
Added Fine-tuning to stack
Aug 2026
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
1
Countries
1
Busiest office
Alameda
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Headquarters
Builds here
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San Francisco
United States
HQ
Alameda
United States
Regional office
8 open roles 10 posted in 90 days 63% engineering 75% remote 50-200 est. staff $111k Avg Salary
hires for Backend, Frontend, Marketing
Jobs
≈ $104k – $201k per year (Estimated) • Remote (United States, India) • Full-Time • 3+ years exp • Alameda
JavaScript
TypeScript
Next.js
React.js
Apply
≈ $105k – $203k per year (Estimated) • Remote (United States, India) • Full-Time • 3+ years exp • Alameda
Python
JavaScript
TypeScript
Node JS
PostgreSQL
ClickHouse
Frontend
Next.js
React.js
Apply
$36k – $72k per year • In office • Internship • Bachelor's Degree • Alameda
Python
JavaScript
TypeScript
Cursor
Claude Code
LLM
OpenAI Codex
Frontend
Next.js
React.js
Apply
≈ $106k – $204k per year (Estimated) • Remote (United States, India) • Full-Time • 3+ years exp • Alameda
Python
TypeScript
Fine-tuning
Prompt Engineering
LLM
RAG
Apply
≈ $124k – $226k per year (Estimated) • Remote (United States, India) • Full-Time • 6+ years exp • Alameda
JavaScript
TypeScript
Next.js
React.js
Apply
Financials
Total raised
$5M
Latest round
Venture - Series Unknown
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Venture - Series Unknown | 2026 | $5M | Details |

Y Combinator 



