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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "aifree": {
      "type": "http",
      "url": "https://aifree.dev/mcp"
    }
  }
}

claude mcp add --transport http aifree https://aifree.dev/mcp

[mcp_servers.aifree]
url = "https://aifree.dev/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "aifree": {
      "type": "remote",
      "url": "https://aifree.dev/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "aifree": {
      "type": "http",
      "url": "https://aifree.dev/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=aifree&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vYWlmcmVlLmRldi9tY3AifQ%3D%3D"
}

{
  "servers": {
    "aifree": {
      "type": "http",
      "url": "https://aifree.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "aifree": {
      "httpUrl": "https://aifree.dev/mcp"
    }
  }
}

extensions:
  "aifree":
    enabled: true
    name: "aifree"
    type: streamable_http
    uri: "https://aifree.dev/mcp"
    timeout: 300

Quality 77 / 100good

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene81 · weight 30

pass
tools.descriptionsevery tool has a description
warn
tools.description_length1 tools have descriptions over 1,024 characters, which crowds the context
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations19 of 19 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: search_free_ai_offers (destructiveHint, idempotentHint); best_lists (destructiveHint, idempotentHint); ask_aifree (destructiveHint, idempotentHint); …
pass
tools.token_costabout 3,619 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump
pass
tools.hidden_textno hidden text in tool names, descriptions, schemas or annotations

stability83 · weight 15

warn
stability.changes16 tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name
pass
stability.new_linksno tool change named a new site

dependencies67 · weight 15

fail
deps.known_vulns1 advisory to act on (malicious, or rated high or critical with a fix available): GHSA-27r3-jxmh-p828 in [email protected] (indirect, fixed in 2.4.0); 7 more of lower severity or without a fix
pass
deps.mcp_sdk_version@modelcontextprotocol/sdk 1.32.1, no known advisory
pass
deps.resolvable@aifree/[email protected] resolved: 99 packages

19 tools, about 3,619 tokens to load them all · tool set 2a3b31a3c86f · tools last changed 2026-11-12 · checked 2026-11-14 07:03 UTC

Tool changes

2026-11-12is_freeadded
Answers "is <brand, model or product> free?" from the verified catalog: free (true, false, or null when the name is unknown), a one-paragraph answer with the check date, the best verified offer (main limit, card rule, who qualifies, verified date) and the aifree.dev pages to cite. Unknown names return a search URL. Same record as GET /api/v1/is-free?q=.
2026-11-10calcadded
The aifree.dev rate-limit calculator: for req requests a day of about tok tokens, every free LLM API tier with a verdict (fits / short / not-published), its daily capacity, and a combo when no single tier fits. Same data as GET /api/v1/calc.
2026-11-09best_listadded
One published top list by slug (see best_lists): the picks with links, FAQ, sources and the Markdown body. Same data as GET /api/v1/best/{slug}.
2026-11-09best_listsadded
The published "best free X" top lists of aifree.dev/best: title, description, dates and the picks in order. Same data as GET /api/v1/best; call best_list for one list with links, FAQ and sources.
2026-11-05upcoming_deadlinesadded
Offers whose free deal ends within N days (default 30), soonest first: slug, name, provider, expiryDate (last day, UTC), endsAt, daysLeft and the offer url. The data behind aifree.dev/calendar; same filters and paging as GET /api/v1/deadlines. "listed" rows are not yet verified by a person.
2026-11-04offer_historyadded
What changed on one offer, newest first: its changelog events (listed, verified, terms_updated, expired, incidents, …) and edits to its public facts (what is free, limits, card rule, expiry, vendor URL), each with a { from, to } diff when fields changed. Same data and paging as GET /api/v1/offers/{slug}/history.
2026-11-04search_free_ai_offerschangedinput schema
2026-10-28get_statusadded
aifree.dev own status: overall verdict, 30-day uptime, per-path checks and background job health. Same report as GET /api/v1/status.
2026-10-28build_stackadded
The aifree.dev/stack builder: for a template (chat, rag, image, voice, agent, finetune) one free pick per slot (llm, emb, vec, host, gpu, tts, stt, image) with alternatives, the tightest published LLM requests per day, cards and programs to watch, and a shareable URL. Optionally pin a slot to an offer slug, require no card, or limit to a country.
2026-10-28list_providersadded
Every provider with public offers: slug, offer count, categories, free types and its offers with status and URL. Same data as GET /api/v1/providers.

Showing the latest 10. Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 92 / 100

provenance75

liveness98

freshness100

hygiene100

+repository +website +reachable +uptime-96% +updated-23d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

@aifree/[email protected] npm98 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 1.32.1 · advisories checked 2026-11-13

advisory	severity	package	fixed in
GHSA-27r3-jxmh-p828body-parser vulnerable to Denial of Service via trailing bytes after a compressed request body	high	`[email protected]`indirect	fixed in `2.4.0`
GHSA-jpvv-r467-5p4w@hono/node-server: Backslash in the request path is parsed as a path separator, bypassing path-based access control at a reverse proxy	moderate	`@hono/[email protected]`indirect	fixed in `2.1.6`
GHSA-qv5m-9pm6-hqp3@hono/node-server: Unhandled `ECONNRESET` on the socket during an asynchronous WebSocket upgrade crashes the process	moderate	`@hono/[email protected]`indirect	fixed in `2.1.6`
GHSA-46wx-v44x-9hh2Hono: `csrf()` does not check requests sent by hyperlink auditing (`text/ping`)	moderate	`[email protected]`indirect	fixed in `4.13.16`
GHSA-4h7h-rv7c-7m2vHono: `validator('form')` skips validation for `multipart/form-data` requests with extra parameters	moderate	`[email protected]`indirect	fixed in `4.13.16`
GHSA-4m76-xfj5-7975Hono: `mount()` and `app.mount()` can forward a path that bypasses middleware scoped inside the mount prefix	moderate	`[email protected]`indirect	fixed in `4.13.16`
GHSA-h7mg-cq63-vhpqHono: RegExpRouter skips wildcard middleware for some route sets and for paths with an encoded line terminator	moderate	`[email protected]`indirect	fixed in `4.13.16`
GHSA-3gg2-335m-rxc6Hono: `css` helper does not escape a closing tag split between the template and an interpolated value, allowing HTML injection	low	`[email protected]`indirect	fixed in `4.13.16`

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://aifree.dev/mcp` streamable-http	none	yes	96%	1145 ms	2025-11-25	2026-11-14

package	registry	version	runtime	secrets
`@aifree/mcp`	npm	1.0.1	npx

Tools (19)

`ask_aifree`read-only	A short answer about free AI offers grounded in the verified catalog, citing only offer slugs it was shown. Declines questions outside the catalog. Cached per question for 24 h; subject to a daily budget.
`best_list`read-only	One published top list by slug (see best_lists): the picks with links, FAQ, sources and the Markdown body. Same data as GET /api/v1/best/{slug}.
`best_lists`read-only	The published "best free X" top lists of aifree.dev/best: title, description, dates and the picks in order. Same data as GET /api/v1/best; call best_list for one list with links, FAQ and sources.
`build_stack`read-only	The aifree.dev/stack builder: for a template (chat, rag, image, voice, agent, finetune) one free pick per slot (llm, emb, vec, host, gpu, tts, stt, image) with alternatives, the tightest published LLM requests per day, cards and programs to watch, and a shareable URL. Optionally pin a slot to an offer slug, require no card, or limit to a country.
`calc`read-only	The aifree.dev rate-limit calculator: for req requests a day of about tok tokens, every free LLM API tier with a verdict (fits / short / not-published), its daily capacity, and a combo when no single tier fits. Same data as GET /api/v1/calc.
`check_eligibility`read-only	Use when someone asks what free AI they qualify for given who they are, e.g. "I am a student in Vietnam with no credit card, what free AI can I get?". Same rules as the aifree.dev/unlock quiz: student and startup programs only when the profile says so, no-card drops offers that ask for a card, country drops offers recorded as other-countries-only (offers with no recorded region stay in and are counted in unrecordedRegionCount), building narrows by category. All parameters are optional; omitted ones mean not a student, no startup, anywhere, card OK, any category. Unknown values are ignored the same way. Returns verified rows first, then by USD value. totalUsd sums USD headline values of verified rows only (tokens, requests, images or minutes count as $0, no exchange rates); listed rows are public but not yet checked by a person. limit (default 20, max 50) only trims the returned list: total, verifiedCount and totalUsd cover every match. Each provider decides who qualifies; cite the offer url and the unlockUrl (the same result as a page).
`compare_offers`read-only	A markdown comparison table (provider, what is free, limits, card rules, catch, expiry, status) for 2-8 offer slugs.
`find_models`read-only	Which free API tiers serve an LLM model, with the published free-tier rate limits (RPM, RPD, TPM, TPD, requests/month), context window, tool calling and JSON mode (structured output). Same rows and ranking (most requests per day first) as the free LLM API picker. Search by model or provider name, optionally by family.
`get_model`read-only	One model by slug (an alias slug resolves to the canonical one) with every live free source: offer, provider, verified or listed, card rule, context and the published rate limits (rpm, rpd, tpm, tpd, rpmo; null = not published). Same record as GET /api/v1/models/{model}.
`get_offer`read-only	Full details for one offer by slug (the last path segment of an aifree.dev/offer/... URL), including the write-up and, for API free tiers, the models served with their published rate limits (rateLimit: rpm, rpd, tpm, optional tpd and rpmo; null = not published), the API id of each model when recorded (apiId), whether its vendor documents JSON mode / structured output (structuredOutput, omitted when unknown), and the API base URL with its request shape (apiBaseUrl, apiCompat: openai, anthropic, google or custom).
`get_status`read-only	aifree.dev own status: overall verdict, 30-day uptime, per-path checks and background job health. Same report as GET /api/v1/status.
`is_free`read-only	Answers "is <brand, model or product> free?" from the verified catalog: free (true, false, or null when the name is unknown), a one-paragraph answer with the check date, the best verified offer (main limit, card rule, who qualifies, verified date) and the aifree.dev pages to cite. Unknown names return a search URL. Same record as GET /api/v1/is-free?q=.
`list_free_llm_apis`read-only	Free LLM / inference API tiers and credits (Gemini, Groq, OpenRouter, Mistral, Cohere, NVIDIA, …) with their limits and card rules.
`list_models`read-only	Every model some live free offer serves (the data behind aifree.dev/model and GET /api/v1/models), most free sources first: slug, family, vendor, context window, tool calling, vision, JSON mode, open weights and how many free sources serve it. Filter by name, family, provider, capability or minimum context; then call get_model for the sources and rate limits.
`list_providers`read-only	Every provider with public offers: slug, offer count, categories, free types and its offers with status and URL. Same data as GET /api/v1/providers.
`offer_history`read-only	What changed on one offer, newest first: its changelog events (listed, verified, terms_updated, expired, incidents, …) and edits to its public facts (what is free, limits, card rule, expiry, vendor URL), each with a { from, to } diff when fields changed. Same data and paging as GET /api/v1/offers/{slug}/history.
`recent_changes`read-only	What was listed, verified, changed or expired recently, newest first.
`search_free_ai_offers`read-only	Find free AI tools, API free tiers, credits and programs. Free text plus optional filters; returns the best matches with limits, card rules and the page URL to cite.
`upcoming_deadlines`read-only	Offers whose free deal ends within N days (default 30), soonest first: slug, name, provider, expiryDate (last day, UTC), endsAt, daysLeft and the offer url. The data behind aifree.dev/calendar; same filters and paging as GET /api/v1/deadlines. "listed" rows are not yet verified by a person.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.minhtc/aifree",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json",
  "remotes": [
    {
      "url": "https://aifree.dev/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.1",
  "packages": [
    {
      "version": "1.0.1",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@aifree/mcp",
      "runtimeHint": "npx",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "AIFREE_MCP_URL",
          "description": "Override the hosted endpoint (default https://aifree.dev/mcp)."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/aifree4dev/aifree.dev",
    "source": "github"
  },
  "websiteUrl": "https://aifree.dev/developers#mcp",
  "description": "Verified free AI offers, API free tiers, credits and student/startup programs from aifree.dev."
}