find-web-developer
Drive the ServiceGraph API (https://api.servicegraph.co) to find,
shortlist, and enrich US web development firms via the pro_services
dataset. The catalog tags ~14k firms with
service_provided:web-development under industry:it_services
(web-development is the second-largest service tag in the catalog).
Always pin both industry:it_services and
service_provided:web-development. Platforms (WordPress, Webflow,
Shopify, Next.js, etc.) and verticals (B2B, ecommerce,
agency-vs-studio) are NOT separate tags — they're keyword substring
matches on firm text.
Any HTTP client works (curl, fetch, requests). Examples below use curl.
Sibling skills — defer when scope is different
- Custom backend / API / internal tools / mobile app / distributed systems →
find-software-developer. The end-product is software beyond a standard website.
- Broader marketing strategy and execution beyond the site build (paid media, content strategy, full digital agency engagement) →
find-marketing-agency.
- SEO-only work on an existing site →
find-seo-agency. Web devs build sites; SEO agencies optimize them. If the user wants new pages built AND optimized, this skill is fine.
If unsure, this skill is correct for "build / rebuild / refresh a
website" tasks. The deferral kicks in when the deliverable is
non-website software or non-build marketing work.
MCP server (preferred for authed calls)
If your harness has the ServiceGraph MCP server loaded (tools
containing servicegraph), prefer those — OAuth 2.1 + PKCE keeps the
token in the harness sandbox. Otherwise use the REST flow below.
API surface (dataset id: pro_services)
Every endpoint requires the bearer (Authorization: Bearer vk_…).
No anonymous tier.
| Endpoint | Cost | Use it for |
|---|
GET /v1/datasets/pro_services/fields[?include_values=1] | free | Confirm web-development is in the service_provided value list. |
GET /v1/datasets/pro_services/check?filter=… | free | Validate filter. |
POST /v1/datasets/pro_services/translate-intent | free | {intent} → DSL filter + sanity count. |
GET /v1/datasets/pro_services/search?filter=…&limit= | free | Brief firm cards + per-row unlock hint + total. |
GET /v1/datasets/pro_services/:apex | free | One row brief; detail only if unlocked. |
POST /v1/datasets/pro_services/unlocks | 10 credits / firm | {apexes:[...]} ≤100; atomic; 30-day TTL on detail. |
GET /v1/me/credits | free | Balance. |
Cost model. Discovery / validation / search / brief reads are
free. Detail (url, phone, email, social, address, full platforms
map) costs 10 credits per firm and lasts 30 days.
Auth
vk_* API keys minted in the dashboard. Keep the token out of the
LLM context — never read .env* into your context; dispatch via
shell.
-
Try the call first through a shell wrapper that sources .env.local:
( set -a; [ -f .env.local ] && . ./.env.local; set +a;
curl -sS -H "Authorization: Bearer $SERVICEGRAPH_API_KEY" \
'https://api.servicegraph.co/v1/datasets/pro_services/fields' )
-
On 401 prompt the user:
"Open https://servicegraph.co/profile/api-keys, create a
key, and add SERVICEGRAPH_API_KEY=vk_… to .env.local here
(or export it). Tell me when done. Please don't paste the key
into chat."
-
Retry after the user signals ready.
Filter DSL
GitHub-search-style.
filter := orExpr
orExpr := andExpr ("OR" andExpr)*
andExpr := notExpr (("AND")? notExpr)* # whitespace = implicit AND
notExpr := ("NOT" | "-") notExpr | atom
atom := "(" filter ")" | predicate
predicate:= IDENT op valueOrList | bareword
op := ":" | "=" | ">=" | "<=" | ">" | "<"
valueOrList := value ("," value)*
value := IDENT | NUMBER | tagAtEvidence
tagAtEvidence := IDENT "@" ("low"|"medium"|"high")
bareword := IDENT | NUMBER # → keyword:<bareword>
Four rules that bite: AND binds tighter than OR (use parens);
comma list = OR within one predicate; negation is -x or NOT x;
bareword = keyword search (quote multi-word phrases).
Web-dev examples (validate yours with /check):
industry:it_services service_provided:web-development
industry:it_services service_provided:web-development@high state:CA webflow
industry:it_services service_provided:web-development shopify ecommerce
industry:it_services service_provided:web-development wordpress
industry:it_services service_provided:web-development headless next.js
industry:it_services service_provided:web-development@high rating>=4 has:clutch
industry:it_services service_provided:web-development b2b
Platform / vertical / framework → keyword mapping (none are
structured tags — keyword them):
| User mentions | Add as keyword |
|---|
| WordPress | wordpress |
| Webflow | webflow |
| Shopify / Shopify Plus | shopify |
| Squarespace / Wix | squarespace / wix |
| Headless / JAMstack / Next.js / Gatsby | headless, next.js, gatsby |
| Sanity / Contentful / Strapi | sanity, contentful, strapi |
| Ecommerce / D2C / DTC | ecommerce, d2c, dtc |
| B2B / SaaS / fintech | b2b, saas, fintech |
Identifying firms — apex
Firms are identified by their apex domain (focuslabllc.com, not
www.focuslabllc.com/work).
Recipes
A. Marketing landing page (the baseline)
GET /v1/datasets/pro_services/search?filter=industry:it_services+service_provided:web-development&limit=10
# Present, get pick of 3. "Unlocking 3 = 30 credits, 30-day TTL."
POST /v1/datasets/pro_services/unlocks
{ "apexes": ["firm-a.com", "firm-b.com", "firm-c.com"] }
B. Webflow agency in a state
GET /v1/datasets/pro_services/search?filter=industry:it_services+service_provided:web-development+webflow+state:CA&limit=10
C. Shopify ecommerce rebuild
GET /v1/datasets/pro_services/search?filter=industry:it_services+service_provided:web-development+shopify+ecommerce&limit=10
For Shopify Plus, add plus as an additional bareword.
D. WordPress site refresh / maintenance
GET /v1/datasets/pro_services/search?filter=industry:it_services+service_provided:web-development+wordpress&limit=10
E. Headless CMS / Next.js
GET /v1/datasets/pro_services/search?filter=industry:it_services+service_provided:web-development+headless+next.js&limit=10
If sparse, drop next.js — headless alone captures the architectural pattern.
F. Indirect intent — "redesign and rebuild our site"
GET /v1/datasets/pro_services/search?filter=industry:it_services+service_provided:web-development&limit=10
Or use the translator:
POST /v1/datasets/pro_services/translate-intent
{ "intent": "agency to redesign and rebuild our outdated company site" }
If the user gave a constraint (location, platform, budget proxy via
pricing_model), add it.
G. Quality threshold + platform
GET /v1/datasets/pro_services/search?filter=industry:it_services+service_provided:web-development@high+rating>=4+shopify+plus&limit=10
H. BYO apex list — enrich domains
User pastes 8–20 web-dev shop domains:
GET /v1/datasets/pro_services/:apex per domain — free brief
(404 = not in catalog, no charge). A 404 often means the firm
isn't tagged with web-development specifically — it might be in
the catalog under a different tag.- User picks N to fully enrich.
POST /unlocks = 10×N credits,
atomic, detail returned.
- Re-runs within 30-day TTL are free.
Gotchas
- Always pin both
industry:it_services AND service_provided:web-development. Without the industry pin, web-development also appears on some marketing-agency rows; without the service pin, you'd return all IT-services firms.
- Defer to
find-software-developer for non-website software. Internal tools, custom CRMs, mobile apps (iOS/Android), backend/API, distributed systems — those are software-developer territory. The boundary: is the end-product a public website, or something else?
- Defer to
find-marketing-agency for full marketing engagements. "Build our site AND run our marketing" is broader than this skill — fire find-marketing-agency, which has web-design as a sub-service too.
- Platforms (WordPress, Webflow, Shopify, Next.js) are NOT structured tags. Keyword them.
- Frameworks (React, Vue, Astro, Gatsby) are NOT structured tags either. Keyword them.
- CMS/hosting/builder product comparisons aren't procurement. "WordPress vs Webflow vs Squarespace" is a knowledge question.
- Multi-word phrases must be split or quoted.
headless cms parses as two AND'd keywords; "headless cms" is one phrase.
- Catalog is US-only B2B. Refuse offshore asks ("Manila", "Karachi"), individual freelancers, and DIY/code-help asks ("debug this CSS").
- Briefs DO include
apex, name, location, ratings. They DON'T include url, phone_primary, email_primary, legal_name, address_full, full platforms — those require an unlock.
not_found / not_in_dataset 404 = not in pro_services. Skip; not charged.- Unlock is atomic. N apexes either all charge (up to 10×N credits) or none on 402.
- Within-TTL re-views are free (
was_cached:true).
Errors
JSON envelope: {"error": {"code": "...", "message": "..."}}.
| Status | Code | What to do |
|---|
| 400 | filter_parse_error | position included; fix and re-validate with /check. |
| 400 | kind_in_filter | Strip any kind: from filter. |
| 400 | field_not_in_dataset | Drop the disallowed field. |
| 400 | invalid_apex | Re-normalize. |
| 401 | unauthorized / invalid_audience | Re-prompt for fresh vk_…. |
| 402 | insufficient_credits | needed and balance; nothing charged. |
| 404 | not_found / not_in_dataset | Skip; not charged. |
| 429 | rate_limited | Honor Retry-After. |
End-to-end example
User: "Three Webflow agencies in California for our marketing site,
ideally with at least a 4-star rating and a Clutch profile."
GET /v1/datasets/pro_services/fields?include_values=1
GET /v1/datasets/pro_services/check?filter=industry:it_services+service_provided:web-development@high+webflow+state:CA+rating>=4+has:clutch
GET /v1/datasets/pro_services/search?filter=...&limit=10
# Present briefs. "Unlocking 3 = 30 credits, 30-day TTL."
POST /v1/datasets/pro_services/unlocks
{ "apexes": ["firm-a.com", "firm-b.com", "firm-c.com"] }
GET /v1/me/credits