Plans
The API Evangelist API and MCP server are built on sixteen years of independent API research. Discovery is free. The research depth — full content, curated guides, and catalog intelligence — is Pro.
| Free | Pro | Team | Enterprise | |
|---|---|---|---|---|
| Price | $0 | $29/mo | $149/mo | Contact |
| Access | Discovery — search, browse, tags, related, summaries | Everything, incl. full content, /guide, /stats | Everything in Pro | Everything + advisory |
| Keys | Keyless | 1 key | Multiple keys | Negotiated |
| Rate limit | 1,000 req/day | 5,000 req/day | 25,000 req/day | Custom |
| Support | Community | Priority email | Kin, directly |
Pro and Team unlock the same capabilities — Team adds multiple keys, higher limits, and priority support for a group. Enterprise pairs API access with Kin Lane's advisory engagements. Prices are introductory; annual billing and volume pricing are available on request.
Free
Everything you need to discover and navigate the network, keyless:
- Search & browse every content type — 5,250+ stories, 77 topic areas, 2,600+ governance building blocks, papers, conversations, videos, solutions, tools, and vocabulary.
- Summaries & metadata for every item (title, summary, tags, links).
- Tag taxonomy —
/tagsand/tags/{slug}: the map of everything API Evangelist covers. - Related content —
/{type}/{slug}/related: the shared-tag relevance graph across the network. - Insights discovery —
/insights/dimensions,/insights/adoption,/insights/companies: the demand-side view of what ~5,800 companies build, buy, and hire for. - Demand entity catalog —
/insights/entities: every service, tool, and standard companies are measured against, ranked by reach. Each response states the corpus, the matcher, and the truncation that bounds it. - Standards measurement —
/standards/measuredand/standards/{slug}/adoption,/coalition,/repositories: what a standards body actually ships — repositories published, how many graduated, who governs it, which companies pay for membership — for the 13 bodies profiled so far. Free on purpose: a specification is a public good, so an honest read of its adoption should not sit behind a paywall. Every response names what is not measured rather than implying zero. - Contact — every way to engage.
Rate limits: 5 req/s, 1,000 req/day. No key required.
Pro
The research layer — for teams and agents that need the depth, not just the map:
| Capability | Endpoint / tool | What you get |
|---|---|---|
| Full research content | ?include=content on any item | The complete markdown bodies and transcripts — the actual research, ready to quote and synthesize. |
| Curated topic guides | /guide?topic= · guide_topic | One call bundles the topic area, top guidance/rules/policies/standards, papers, recent stories, and the services that can help. |
| Catalog intelligence | /stats · get_stats | Per-type counts, stories-per-year, and the top tags by reach across the network. |
| Insights company depth | /insights/company/{slug} · get_company_insight · company_gaps | The full 40-dimension demand-side profile of a Fortune 1000 / provider company, its adopted stack, and where it's thin. (Discovery — /insights/dimensions, /adoption, /companies — stays free.) |
| Benchmarked dimensions | /insights/company/{slug}/dimensions · company_dimensions | Every dimension read against the measured cohort — median, mean, max, rank, percentile, and an index where 1.0 is exactly typical. A raw score of 26 is unreadable; these are the columns that make it mean something. |
| Peers & whitespace | /insights/company/{slug}/peers · /whitespace · /signals | The companies most comparable to this one, what they run that it does not, and its own stack entity by entity with each entity's reach across the cohort. |
| The demand inversion | /insights/entity/{kind}/{slug} · entity_demand | Which companies show demand for a given service, tool, or standard, broken down by industry. Every other endpoint runs company → stack; this one runs stack → companies. It is the prospecting query, and it exists in no report or bundle. |
Pro also unlocks the paid MCP prompts (research_topic, governance_starter_kit,
vendor_landscape) and the ae://stats / ae://guide/{topic} MCP resources.
Every Pro capability above is available as both a REST endpoint and an MCP tool — the MCP is a pass-through over the same API, so the two return identical results and there is one paywall, not two.
Governance & Discovery API
The Governance & Discovery API — the API Commons tools as a hosted service — uses the same Free/Pro line. Checking an API is free; generating artifacts, certifying, auditing repos, and rolling up across many APIs is Pro.
| Capability | Endpoint | Tier |
|---|---|---|
| Lint / validate | POST /governance/validate | Free |
| Coverage · Waivers · HTML report · Verify | /governance/coverage · /waivers · /report · /verify | Free |
| Classify (PII/secret) · Diff (breaking changes) | /governance/classify · /governance/diff | Free |
| Scorecard (maturity) · Onboarding (AID validate) | /governance/scorecard · /discovery/onboarding | Free |
| Rule catalog · Ruleset registry | GET /governance/rules · /rulesets | Free |
| Certify · Agent export · Pipeline audit | /governance/certify · /agent-export · /pipeline-audit | Pro |
| Toolsmith · Context gate · Overlay | /governance/toolsmith · /context-gate · /overlay | Pro |
| Mock · Snippets · Agent descriptor (llms.txt/AGENTS.md) | /governance/mock · /snippets · /discovery/agent-descriptor | Pro |
| Reusability · Experience | /discovery/reusability · /discovery/experience | Pro |
| SARIF report output · bulk multi-API input | ?format=sarif · arrays | Pro |
Full detail: Free vs Pro and the Governance API Reference.
Getting started with Pro
Self-serve — no email required:
- Sign in to create your account and a free-tier key — GitHub · Google · LinkedIn. A second provider on the same verified email joins the account you already have.
- Upgrade to Pro or Team via Stripe checkout — your key is moved onto the paid usage plan automatically when checkout completes.
Send your key in the x-api-key header:
Code
Prefer a hand-set-up account or volume/annual pricing? Email [email protected] and Kin Lane will sort it out.
Work directly with API Evangelist
The API and MCP are one way to tap the research. The other is working with Kin Lane directly — API strategy, governance, discovery, and evangelism engagements drawn from the same sixteen years. See the services or email [email protected].