llms-txt
Providers using this tag (42)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 2 Complete, well-documented, and agent-ready
Strong 14 Solid coverage with minor gaps
Developing 12 Usable, with meaningful gaps to close
Thin 3 Limited public surface area
Emerging 8 Early or largely undocumented
Minimal 3 Almost no public developer surface
APIs with this tag (31)
Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →
Strong 10 Solid coverage with minor gaps
Red5 Agent-Native SurfacePublicly hosted llms.txt providing a structured index of Red5 products, use cases, and documentation for AI...Red5 Pro Server APIREST/JSON API embedded in the Red5 Pro media server providing server info/ping/statistics, applications, st...Statable Stats APIRead-focused REST HTTP API for privacy-first web analytics. Bearer (stbl_) auth, server-side only (no CORS)...Stream Manager 2.0 APIREST/JSON API used by both Red5 Pro clusters and Red5 Cloud for Auth, Admin, Proxy, Streams, Streams Provis...APIVerve GraphQL API (alpha)Single GraphQL endpoint that fans out to multiple APIs in one request. Explicitly labeled alpha / not for p...APIVerve MCP ServerHosted remote MCP server (streamable HTTP) exposing every catalog endpoint as individual MCP tools with inp...APIVerve REST APISingle-key REST gateway to 300+ (367+ enumerated) APIs sharing a consistent request shape and status/error/...Odds API RESTREST API for sports and racing betting odds with SSE and WebSocket streaming, arbitrage, positive EV, line ...Apstal MCP ServerHosted MCP server exposing Apstal analytics via JSON-RPC 2.0 over Streamable HTTP. Public tools (login, reg...Pomo Llms.txt APIThe Llms.txt API from Pomo — 1 operation(s) for llms.txt.
Developing 8 Usable, with meaningful gaps to close
Digits Llms.txt APIThe Llms.txt API from Digits — 1 operation(s) for llms.txt.iGaming Tools MCP ServerFree public hosted MCP server (Streamable HTTP, no API key, read-only, not metered) exposing the same iGami...TweetAPI Hosted MCP ServerHosted remote HTTP MCP server providing current TweetAPI docs and read-only live public-data tools. Uses OA...TweetAPI tw-v2 REST APIREST API for public Twitter/X data with X-API-Key auth, JSON responses, and 76 documented endpoints across ...University of Twente llms.txt Programme CatalogA machine-readable study-programme document the university serves from its own web root at www.utwente.nl/l...Geoloods APIREST place-search and geocoding API (search, reverse geocode, nearby, bbox, countries). API-key authenticat...Loa Healthcare Pricing MCP ServerHosted/remote MCP server 'LOA Healthcare Pricing' v1.0.0 over Streamable HTTP with 12 tools for CPT search,...Bounti Llms.txt APIThe Llms.txt API from Bounti — 1 operation(s) for llms.txt.
Thin 6 Limited public surface area
Derrick MCP ServerHosted streamable-HTTP MCP server exposing 12 enrichment tools; also available as a local npm package (derr...Derrick REST APIREST API for B2B data enrichment (emails, phones, profile/company enrichment, verification, search, SIRET/S..._done CatalogSingle-page agent-native catalog of the 27 _done pay-per-call utility APIs. Publishes a real llms.txt, a ro...THORChain Llms.txt APIThe Llms.txt API from THORChain — 1 operation(s) for llms.txt.GetVocal Llms.txt APIThe Llms.txt API from GetVocal — 1 operation(s) for llms.txt.CuratorSearch APIKeyless, read-only REST/JSON API for searching museum/curatorial vacancies and retrieving individual listin...
Emerging 5 Early or largely undocumented
QName AI WHOIS REST APIApproval-gated REST API for WHOIS/RDAP lookups: GET /api/whois/{domain} (single), POST /api/whois/batch (ba...TradeBBTradeBB exposes a single publicly consumable machine-readable interface: an llms.txt file designed for LLM ...TrickyBird Agent SurfaceAgent-native interfaces for TrickyBird: a structured llms.txt and a documented WebMCP in-page tool surface....Rates and Limits JSON APIKeyless, unauthenticated REST-style JSON API serving US tax, payroll, benefits, and wage figures with bundl...L2Calendar Agent-Native ContentAgent-native content surface exposing machine-readable summaries via llms.txt and llms-full.txt for AI assi...
Minimal 2 Almost no public developer surface
Companies reaching this through an API (8)
These companies publish an API, specification or operation carrying “llms-txt” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.
Score breakdown
Frequency
51.3
log-scaled weighted occurrences
Breadth
1.1
spread across providers
Quality lift
53.1
mean composite of providers using it
Cohesion
8.7
strength of nearest seed neighbor
Related tags
OpenAPI 17 co-occurrences
Agent Skills 8 co-occurrences
MCP Server 5 co-occurrences
x402 8 co-occurrences
Agent-Native 16 co-occurrences
A2A 13 co-occurrences
REST API 5 co-occurrences
MCP 25 co-occurrences
Where this tag comes from
Provider tag42
Api tag31
Openapi tag5
Openapi op tag5
Cohort brief
Auto-generatedThe 42 providers in the APIs.io catalog tagged llms-txt, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
42
all scored
Mean Kin Score
43.1
+20.1 vs catalog 23
Mean Agent Readiness
32.6
+20.4 vs catalog 12.2
Spread
4.1–70.3
median 46.8 · σ 18.7
How the 42 split by band
Exemplar 2Strong 14Developing 12Thin 3Emerging 8Minimal 3
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Developer Ergonomics | 50 | 23.3 | +26.7 | 42 |
| Access Clarity | 52 | 26.5 | +25.5 | 42 |
| Operational Transparency | 33.6 | 13.8 | +19.8 | 42 |
| Contract Quality | 34.1 | 17.8 | +16.3 | 42 |
| Discoverability | 69.6 | 58 | +11.6 | 42 |
| Contract Governance | 9.8 | 6.3 | +3.5 | 42 |
A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.
What this cohort publishes
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 57% | 15% | +42 |
| MCP server (first-party) | 62% | 13% | +49 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 24% | 12% | +12 |
| Security | 95% | 98% | -3 |
| Arazzo workflows | 0% | 2% | -2 |
| Governance rules | 0% | 13% | -13 |
mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.
Top by Kin Score
- 1 Cracked API 70.3
- 2 TranscriptFetch 67
- 3 Statable Stats API 65.1
- 4 Agent Ready 63.5
- 5 RoxyAPI 63.5
- 6 The Ainglish Project 62.4
- 7 APIVerve 61.3
- 8 Autoderm – AI Dermatology API 60.5
- 9 AI for Database 60.2
- 10 Agent Disco 59.9
Top by Agent Readiness
- 1 Agent Ready 72.9
- 2 Cracked API 68.5
- 3 TranscriptFetch 58.1
- 4 Statable Stats API 57.6
- 5 The Ainglish Project 57
- 6 Loa Healthcare Pricing API 55.9
- 7 BudgetPixel 55.3
- 8 anew 50.6
- 9 APIVerve 50
- 10 Agent Disco 49.1
All 42 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
26 September 2026, across 27598
providers, using the same computation served by the
APIs.io cohort API. Briefs are published for rosters of
5 or more scored providers; below that a distribution is not meaningful.
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.