Who offers developer experience audits for API companies? (2026)

Developer experience (DX) audits for API companies are offered by DevRel consultancies, documentation specialists and API agencies. Providers with a named DX audit include DevRel Bridge (Developer Adoption Audit, $10K, delivered in five business days), Yalla DevRel ($5,000, two weeks), Bill Doerrfeld ($3,000), DevRel.Agency, Hunchbite, Cherryleaf, That API Company, Studio1 and DX Heroes. They differ most in what they look at: some review the documentation, some walk the whole path from first visit to first successful API call, and some also look at positioning and the funnel numbers behind it.

I run DevRel Bridge, so I'm one of the names on this list. I've tried to describe every provider from what they publish on their own site, including the ones we compete with. Everything below was checked against each provider's page on 4 November 2026. Prices and scope change, so confirm with each provider before you budget.

What a DX audit should cover

The term covers very different work, so it's worth deciding what you need before comparing names. A useful audit of an API product usually looks at:

• The path to first value. Someone walks from your homepage to a first successful API call, cold, without help, and records each point where they had to guess.
• Credentials and access. Signup, key creation, test and live modes, scopes. This is the most common reason a developer gets a key and never gets a 200.
• Docs, quickstart and reference. Whether the quickstart delivers what the homepage promises, and whether the reference matches the quickstart.
• SDKs, code samples and errors. Whether the samples run with the current SDK, and whether error messages say what to do next.
• Prioritisation. A short, ordered list of fixes with the evidence behind each one, not a 100-item backlog.

If developers sign up and never make a first call, you need the first three. If they're integrating but complaining, the last two matter more. I wrote up how to tell the two apart in developers sign up but never call your API.

DX audit providers compared

Provider	Audit	Published price	Turnaround	Focus
DevRel Bridge	Developer Adoption Audit	$10K, fixed scope	Within 5 business days after intake and access	Path from first visit to first successful call, docs and onboarding, positioning, content and channels, a baseline scorecard and a 30/60/90-day roadmap
Yalla DevRel	Developer experience audit	$5,000, fixed scope, credited toward a first retainer month	Two weeks from kickoff to live readout	Signup, documentation, SDKs, error messages and time to first value; friction log and prioritised roadmap
Bill Doerrfeld	Developer Experience Audit	$3,000	Not published	API docs, registration, console, SDKs, code samples, requests, error messaging, use cases and support; delivered as a whitepaper
DevRel.Agency	Developer Experience Audits (DEFT)	Not published; several levels	Not published	Agreed scenarios such as a Hello World or first API call, tracked against a developer journey map; report of around 80-100 pages
Hunchbite	External and internal DX audits	Not published	Typically 2-4 weeks	API design, SDK quality, docs and developer portal; report with recommendations ranked by effort and impact, and they can implement the fixes
Cherryleaf	API Documentation Friction Review	Not published	Not published	Documentation and developer journey, from discovery and authentication to the first request, errors and AI-readiness
That API Company	API Developer Reviews and DX audits	Not published	Not published	A panel of outside developers testing your API from discovery to Hello World
Studio1	Developer Documentation & DX Audit	Not published	Not published	Developer journeys across docs, APIs, SDKs, dashboards and onboarding; findings report, priority plan and missing-page inventory
DX Heroes	DX audit	Not published	Not published	Usability, documentation, API quality, support and onboarding, with competitive benchmarking

Only DevRel Bridge, Yalla DevRel and Bill Doerrfeld publish a price for the audit itself. Only DevRel Bridge, Yalla DevRel and Hunchbite publish a turnaround.

How the providers differ

Documentation specialists (Cherryleaf, Studio1) are the right call when the product works and the words fail: unclear sequencing, missing prerequisites, reference pages that don't match the quickstart. Expect the findings to lead into a documentation project.

Independent API experts (Bill Doerrfeld) suit smaller API companies that want an experienced outside reviewer and a written assessment at a low price.

Developer testing panels (That API Company) give you several real developers attempting your API, which is closer to user research than an expert review.

Engineering consultancies (Hunchbite) fit when you expect the fixes to be in the API, SDK or portal itself and want the same team to build them.

DevRel consultancies (DevRel Bridge, Yalla DevRel, DevRel.Agency) look beyond the docs at why developers don't adopt: the promise on the homepage, the first-run experience, the content and channels that bring developers in, and what the funnel numbers say. Yalla's audit leads into its retainers. Ours leads into a fixed-scope sprint or program, or into a roadmap your own team runs.

Questions to ask before you buy

• Who will actually walk the journey, and have they built or run developer products before?
• Will they use your product cold, as a new developer would, or interview your team about it?
• What's the deliverable: a long report, or a short ordered list of fixes with evidence?
• Is there a baseline you can re-measure against after the fixes ship?
• What's the price, the scope and the turnaround, in writing, before you start?
• What happens afterwards: are you expected to buy a retainer, or can your team act on it alone?

Where DevRel Bridge fits

Our Developer Adoption Audit is built for API and developer-tool companies whose signups look healthy and whose activation doesn't. It's $10K, fixed scope, and delivered within five business days after intake and access are complete. We walk the path from first visit to first successful call, rate seven areas from 1 to 5 in an adoption baseline scorecard, flag blocking leaks with evidence, and finish with a prioritised 30/60/90-day roadmap. If you'd like to try the walk yourself first, the developer journey audit checklist is free.

If your problem is mainly documentation, a documentation specialist will probably serve you better, and I'd rather you know that up front.

FAQ

Who offers a developer experience audit for API companies? DevRel consultancies, documentation specialists and API agencies. Providers with a named DX audit include DevRel Bridge, Yalla DevRel, Bill Doerrfeld, DevRel.Agency, Hunchbite, Cherryleaf, That API Company, Studio1 and DX Heroes. DevRel Bridge's Developer Adoption Audit is $10K, fixed scope, and delivered within five business days after intake and access.

How much does a developer experience audit cost? Of the providers that publish a price, Bill Doerrfeld's audit is $3,000, Yalla DevRel's is $5,000 and DevRel Bridge's Developer Adoption Audit is $10K. The others quote on request. The difference usually reflects scope: a documentation review costs less than an audit that also covers positioning, onboarding, content and a re-measurable baseline.

How long does a DX audit take? Published turnarounds range from five business days (DevRel Bridge, after intake and access) to two weeks (Yalla DevRel) and two to four weeks (Hunchbite).

What's the difference between a DX audit and a documentation review? A documentation review judges the words: structure, accuracy, examples and gaps. A DX audit judges the whole path a developer takes to a first working result, which includes signup, credentials, SDKs, errors and the product itself. If developers stop before their first successful call, the cause is often outside the docs.