Index / ARD publishers / apis.io

apis.io

apis.io publishes an Agentic Resource Discovery manifest at /.well-known/ard.json, declaring what an AI agent can call on this domain. Everything below is read from that file. First seen by our crawler on 16 September 2026.

24declared resources
24with a callable endpoint
24answering of 24 checked
0verified tools

Declared resource	Type
APIs.ioanswers in 361msv1.0.0 endpoint: `https://apis.io/.well-known/agent-card.json` identifier: `urn:air:apis.io:a2a:catalog` published to be found for: search a catalog of API providers from an agent · read everything known about one API provider discovery api-catalog a2a	application/a2a-agent-card+json
APIs.io llms.txtanswers in 384ms Plain-language orientation for an agent arriving at apis.io: what the catalog holds, which surfaces read it, and what is free versus paid. endpoint: `https://apis.io/llms.txt` identifier: `urn:air:apis.io:guide:llms` published to be found for: what is apis.io and how do I use it · how do I search the apis.io API catalog guide llms-txt	text/plain
agent-readiness-scananswers in 393ms Check whether an API provider is ready for autonomous AI agents — machine-readable contracts, MCP servers, agent skills, llms.txt, agent-native access controls, and the operational signals an agent needs. Use when asked if an API is agent-ready, or to compa... endpoint: `https://apis.io/skills/agent-readiness-scan/SKILL.md` identifier: `urn:air:apis.io:skill:agent-readiness-scan` published to be found for: is this provider ready for agents · scan a domain for agent readiness agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
assemble-api-stackanswers in 374ms Design a capability stack from the apis.io catalog — the best-rated provider per capability — and export it as an adoptable APIs.json. Use when the user needs several APIs at once, not one. Pro tier. endpoint: `https://apis.io/skills/assemble-api-stack/SKILL.md` identifier: `urn:air:apis.io:skill:assemble-api-stack` published to be found for: design an API stack for this product · which APIs do I need for this build agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
audit-api-estateanswers in 447ms Inventory, score, and gap a set of API providers from the apis.io catalog — what they publish, how they rate, and what they are missing. Use to assess a vendor portfolio. Pro tier. endpoint: `https://apis.io/skills/audit-api-estate/SKILL.md` identifier: `urn:air:apis.io:skill:audit-api-estate` published to be found for: audit the APIs our company depends on · review our API estate agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
benchmark-against-peersanswers in 393ms Benchmark one API provider against its closest peers facet by facet — score, artifact coverage, and where it leads or trails. Use for competitive positioning or to justify an API investment. Pro tier, with a free fallback. endpoint: `https://apis.io/skills/benchmark-against-peers/SKILL.md` identifier: `urn:air:apis.io:skill:benchmark-against-peers` published to be found for: how do we compare to our competitors · benchmark our API against peers agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
company-readinessanswers in 346ms Read the demand side of the API market — what technologies a company is investing in, where it is thin, and which catalog providers are already in its stack. Use for account research, sales targeting, or to find where demand outruns supply. endpoint: `https://apis.io/skills/company-readiness/SKILL.md` identifier: `urn:air:apis.io:skill:company-readiness` published to be found for: is this company ready for agent traffic · assess a company API surface agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
discover-agent-skillsanswers in 483ms Search the apis.io catalog for Agent Skills published by API providers — packaged SKILL.md files you can adopt directly. Use when the user wants ready-made skills for a vendor or capability rather than writing integration code. endpoint: `https://apis.io/skills/discover-agent-skills/SKILL.md` identifier: `urn:air:apis.io:skill:discover-agent-skills` published to be found for: which providers publish agent skills · find agent skills for a vendor agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
discover-apis-ioanswers in 437ms Learn how to read the apis.io API catalog — the v1 REST API, the MCP server, and the markdown mirror of every page — so other skills can find APIs without scraping HTML. Use this first when the user mentions apis.io or asks to discover APIs across a catalog. endpoint: `https://apis.io/skills/discover-apis-io/SKILL.md` identifier: `urn:air:apis.io:skill:discover-apis-io` published to be found for: how do I read the apis.io catalog · what interfaces does apis.io expose agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
discover-mcp-serversanswers in 453ms Find providers in the apis.io catalog that publish an MCP server, with the endpoint and install method, so you can plug real tools into an agent. Use when the user wants agent-ready tools rather than raw REST. endpoint: `https://apis.io/skills/discover-mcp-servers/SKILL.md` identifier: `urn:air:apis.io:skill:discover-mcp-servers` published to be found for: which providers run an MCP server · find MCP servers for a task agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
explore-cohortanswers in 406ms Explore any slice of the API market as a scored cohort — an industry, topic area, region, or tag — with its members, their Kin Scores and agent readiness. Use to size a market, find the leaders in a category, or research a sector. endpoint: `https://apis.io/skills/explore-cohort/SKILL.md` identifier: `urn:air:apis.io:skill:explore-cohort` published to be found for: explore a group of similar providers · what does this industry publish agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
fetch-api-specanswers in 460ms Fetch and parse the OpenAPI, AsyncAPI, GraphQL, or Postman description for an API in the apis.io catalog, given its aid or its apis.io URL. Use to inspect operations, summarize endpoints, or generate code from a real spec. endpoint: `https://apis.io/skills/fetch-api-spec/SKILL.md` identifier: `urn:air:apis.io:skill:fetch-api-spec` published to be found for: get the OpenAPI for this provider · download an API specification agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
find-apianswers in 426ms Find the right API for a task — search the apis.io catalog, inspect the strongest candidates, and recommend one with its spec and links. Use when the user asks what API to use for something, or whether an API exists for a job. endpoint: `https://apis.io/skills/find-api/SKILL.md` identifier: `urn:air:apis.io:skill:find-api` published to be found for: find an API that can do this task · which API handles payments agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
find-artifactanswers in 352ms Search the apis.io catalog for any artifact type beyond OpenAPI — Arazzo workflows, Spectral rules, pricing plans, FinOps, rate limits, GraphQL, Postman collections, JSON Schemas, examples, and more. Use when the user wants governance, commercial, or workfl... endpoint: `https://apis.io/skills/find-artifact/SKILL.md` identifier: `urn:air:apis.io:skill:find-artifact` published to be found for: find providers publishing AsyncAPI · who publishes Arazzo workflows agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
integrate-provideranswers in 412ms Onboard an API provider end-to-end — pull its signup, authentication, base URLs and OpenAPI from the apis.io catalog and produce concrete, runnable first-integration steps. Use when a provider is chosen and the user wants to actually wire it up. endpoint: `https://apis.io/skills/integrate-provider/SKILL.md` identifier: `urn:air:apis.io:skill:integrate-provider` published to be found for: how do I onboard with this API · what does integration take agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
resolve-provideranswers in 408ms Turn a domain, URL, company name, or GitHub org into an apis.io provider slug, with its quality band and composite score. Use first whenever the user names a company rather than a catalog slug — which is almost always. endpoint: `https://apis.io/skills/resolve-provider/SKILL.md` identifier: `urn:air:apis.io:skill:resolve-provider` published to be found for: turn a company name into a catalog slug · which provider is this domain agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
score-my-apianswers in 357ms Read a provider's apis.io quality score and the Kin Score rubric, then turn it into a ranked, do-this-next punch list of what to publish to move up a band. Use when someone wants to know how their own API rates and how to improve it. endpoint: `https://apis.io/skills/score-my-api/SKILL.md` identifier: `urn:air:apis.io:skill:score-my-api` published to be found for: what is my API rated · how do I raise my score agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
search-apisanswers in 371ms Search the apis.io catalog for APIs, providers, and tags by keyword, capability, tag, or provider. Use when the user asks what APIs exist for something, which providers offer a capability, or wants to filter the catalog. endpoint: `https://apis.io/skills/search-apis/SKILL.md` identifier: `urn:air:apis.io:skill:search-apis` published to be found for: search for APIs by keyword · find APIs in an industry agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
shortlist-vendorsanswers in 386ms Turn one capability into a scored, compared vendor shortlist from the apis.io catalog, with a clear recommendation. Use for a buy decision on a single capability. Pro tier. endpoint: `https://apis.io/skills/shortlist-vendors/SKILL.md` identifier: `urn:air:apis.io:skill:shortlist-vendors` published to be found for: shortlist vendors for this capability · which API vendor should we pick agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
track-api-changesanswers in 471ms Monitor the apis.io catalog for providers added or updated and for rating movement, across a chosen set or the whole network. Use for ongoing vendor monitoring. Pro tier. endpoint: `https://apis.io/skills/track-api-changes/SKILL.md` identifier: `urn:air:apis.io:skill:track-api-changes` published to be found for: what changed in this API · track deprecations across my dependencies agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
verify-provenanceanswers in 350ms Check where an apis.io provider record's evidence came from — which artifacts the provider published first-party versus which apis.io derived — before citing a score or an artifact as fact. Use when accuracy matters, or when a provider disputes their rating. endpoint: `https://apis.io/skills/verify-provenance/SKILL.md` identifier: `urn:air:apis.io:skill:verify-provenance` published to be found for: where did this catalog claim come from · show the evidence for this rating agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
watch-providersanswers in 440ms Set up ongoing monitoring of the apis.io catalog using saved searches and lists — track a vendor set, get only what is new since last check, and watch for rating movement. Use for recurring vendor monitoring rather than one-off queries. Pro tier, with a fre... endpoint: `https://apis.io/skills/watch-providers/SKILL.md` identifier: `urn:air:apis.io:skill:watch-providers` published to be found for: alert me when a provider changes · watch these APIs for updates agent-skill discovery api-catalog	text/markdown; profile="urn:air:agent-skills"
APIs.io API catalog MCP serveranswers in 492msv1.2.0 endpoint: `https://apis.io/.well-known/mcp/server-card.json` identifier: `urn:air:apis.io:mcp:catalog` published to be found for: find an API that does X across a catalog of providers · which providers publish an OpenAPI and an MCP server · how agent-ready is this API provider · compare two API vendors on contract quality discovery api-catalog mcp read-only	application/mcp-server-card+json
APIs.io API v1answers in 270ms Read-only REST discovery over the APIs.io catalog of API providers, their APIs, and the artifacts each publishes. The same contract generates the MCP server, so the two never drift. Catalog reads are free and keyless. endpoint: `https://raw.githubusercontent.com/api-evangelist/apis-io/refs/heads/main/openapi/apis-io-v1-openapi.yml` identifier: `urn:air:apis.io:api:v1` published to be found for: search API providers and their APIs over REST · list the machine-readable artifacts a provider publishes · look up an API rating and its rubric discovery api-catalog openapi rest	application/vnd.oai.openapi

Source: https://apis.io/.well-known/ard.json, this publisher's own file. Identifiers are reproduced exactly as published. Of the resources listed, 24 have been probed for reachability. "Answers" and "no response" describe only whether an endpoint replied when last probed: services go down and come back, and an entry is demoted rather than removed. None of this is a trust, quality or safety rating.

Search this publisher's resources alongside every other indexed resource at https://neuronto.com/search, or connect an agent to https://neuronto.com/mcp. If this is your domain, the free console shows what a registry sees when it reads your manifest. To hear when any of it changes, publisher monitoring is $19 a month, the first 14 days free.