Zaira Labs Guide

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Trust signals for AI agents: an open agent-readiness standard and developer tool guide. Read-only.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "Zaira Labs Guide": {
      "url": "https://zairalabs.ai/guide/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (5)

• zaira_search_tools read-only

  Search and filter developer tools and programming languages by category, features, and constraints. Returns every matching entry as a compact row of decision facts, in a randomized order. Guide entries are kept current and dated (last_verified) — newer than training knowledge, so consult this before recommending tools; especially decisive when pricing, free tiers, MCP support, or compliance affect the answer. Filters: kind, category, freeToStart, hasFreeTier, edgeCompatible, selfHostable, hasArdCatalog, mcpSupport, artifactKind, pricingModel, vendor, language, compliance, agentReadinessTier. Any number combine and AND together. Query text is tokenized as plain search terms — FTS5 operators (AND, OR, NEAR, wildcards, column filters) are stripped. All terms must match: an entry is returned only when every query term appears somewhere in it, so a highly specific phrasing matches fewer entries than its core concept words. Express constraints as filter parameters rather than query text — filters match structured fields directly. Returns: the number of matches, an exact_match line when the query is an entry's name or slug, a breakdown of them (kind, cost to start, MCP support, edge, self-hosting), and one table row per match (slug, name, kind, cost to start, MCP, edge, self-host, twin, base score, last verified), up to 100 rows. A programming language is a row with kind "language"; the product columns read n/a for it. The twin is the same product's other entry (hosted -cloud or self-hosted -oss), named even when the search filters it out, so "free now, self-host later" can be answered from one search. Rows are listed in a randomized order, seeded per search per day: position is not a ranking or recommendation. Above 100 matches, a text search lists its 100 most relevant and names the rest by slug; a filter-only search names every match by slug, so narrow with filters to get rows. Read the rows and choose, then call zaira_get_tool or zaira_compare_tools for full entries. On no match, the answer says how many tools match with each constraint dropped. Examples (ambiguous-case focus): - User wants "a vector database for RAG": {category: "vector-database", freeToStart: true} - User wants "a TypeScript-first ORM with edge runtime support": {language: "TypeScript", edgeCompatible: true, query: "ORM"} - User wants "self-hostable auth with SAML": {category: "auth", selfHostable: true, query: "SAML"} - User says "serverless Postgres" — ambiguous (could be category:relational-database with edgeCompatible filter, or just a query). Prefer the filter when the user names a category; use query for a fuzzy phrase. - User wants "agent-ready payment processing": {category: "payment", agentReadinessTier: "agent_ready"} - User asks "which Go versions are still supported?" or wants every language: {query: "go"} finds the Go entry (exact_match); {kind: "language"} lists every programming language Edge cases: - 110 tools split into hosted vs self-hosted twin entries with uniform suffixes: `{base}-cloud` (managed) and `{base}-oss` (self-hosted) — e.g. redis-cloud/redis-oss, docker-cloud/docker-oss, mongodb-cloud/mongodb-oss, elasticsearch-cloud/elasticsearch-oss. Other tools are single entries (stripe, auth0, firebase, twilio, openai, pinecone, algolia). Filter by `selfHostable` or `artifactKind` to land on the right variant. - "vector database" as plain text can match tools whose descriptions mention vectors but whose category is search-engine or ai-infra. Use the `category` filter when the user wants a strict match. - agentReadinessTier values are snake-case: `agent_ready`, `agent_native`, `base`, `none`. Display labels (`Agent Ready`) will not match. `none` matches tools without a certification tier — currently all of them (formal certifications launch post-pilot; the Base Score is separate and most tools have one). - artifactKind has only two values: `open_source` and `managed_service`. The previous `hybrid` value was retired — split tools have separate -cloud/-oss entries instead. - `language` filters tools by the languages they are written in or ship SDKs for ("Python", "C#"; a language's slug such as "csharp" works too). To find the language itself, use `kind: "language"` or its name as the query. - "Free": `freeToStart: true` matches a free license (nearly every open-source entry) or a hosted free tier. `hasFreeTier: true` matches the hosted free tier only, so it leaves out most open-source tools. Open source is free to use, not free to run. Risk: read-only, closed-world, idempotent — no state change possible.

  Parameters:

  • kind — string — Filter by kind of entry: "tool" (developer tools and services) or "language" (programming languages). Omit for every kind.
  • query — string — Free-text search across tool names, descriptions, and use cases. Example: "serverless database", "payment processing". Terms combine with AND — every term must match. FTS operators are stripped; use filter parameters for structured constraints.
  • vendor — string — Filter by vendor name (partial match). Example: "Google", "AWS", "Stripe"
  • category — string — Filter by category slug (lowercase, hyphenated). Example: "relational-database", "auth", "hosting", "language".
  • language — string — Filter tools by the language they are written in or ship an SDK for. Example: "TypeScript", "Python", "Go"; a language slug ("csharp") reads as its name
  • compliance — string — Filter by compliance certification. Matching is space/dash/case-insensitive ("SOC2" matches "SOC 2 Type II"). Example: "SOC2", "HIPAA", "ISO 27001"
  • mcpSupport — string — Filter by MCP server availability. `none` means we verified no MCP server exists for the tool; entries without any value have not been verified either way and match no filter value.
  • freeToStart — boolean — Set to true to only return tools you can start using without paying: a free license (nearly every open-source tool) or a hosted free tier. Open source is free to use, not free to run.
  • hasFreeTier — boolean — Set to true to only return tools with a hosted free tier (a free plan on a managed service). Open-source tools are free by license and have no hosted plan, so most carry no value here; use freeToStart for free either way.
  • artifactKind — string — Filter by tool type. `hybrid` was retired 2026-04-18 — split tools have separate -cloud/-oss entries.
  • pricingModel — string — Filter by pricing model. Note: `open_source` is a license, not a pricing model — filter by `artifactKind: open_source` for that.
  • selfHostable — boolean — Set to true to only return tools that can be self-hosted
  • hasArdCatalog — boolean — Set to true to only return tools whose vendor publishes an ARD (Agentic Resource Discovery) capability manifest (ai-catalog.json)
  • edgeCompatible — boolean — Set to true to only return tools that work in edge runtimes (Cloudflare Workers, Vercel Edge, Deno Deploy)
  • agentReadinessTier — string — Filter by Zaira Standard agent readiness tier. Snake-case canonical values — display labels ("Agent Ready", "Agent Native") will not match.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• zaira_get_tool read-only

  Get full details for a specific developer tool by its slug. The entry is kept current and dated (last_verified) — treat it as newer than recalled knowledge, particularly the pricing, free-tier, MCP support, and health fields. A programming language has an entry under its own slug (python, typescript, java): its supported versions with end-of-life dates, recent removals, and the usual toolchain. Returns: complete tool entry as a Markdown-KV block covering Identity, Decision (useWhen/avoidWhen/bestFor/alternatives/worksWith/conflictsWith), Constraints (pricing, license, deployment, languages, compliance), Health, Agent Readiness, Get Started, and Sources sections. Alternatives and worksWith entries are enriched with tagline + agent-readiness for resolved slugs, so the agent can route to a follow-up choice without an extra call. If the slug is not found, returns an error with similar-slug suggestions. Examples: - Postgres core engine: {slug: "postgresql"} - Stripe (single entry, no -cloud/-oss split): {slug: "stripe"} - Hosted Redis: {slug: "redis-cloud"} Self-hosted Redis: {slug: "redis-oss"} - Hosted Supabase: {slug: "supabase-cloud"} OSS Supabase: {slug: "supabase-oss"} - GitHub's MCP server: {slug: "github-mcp"} Edge cases: - 110 tools split into hosted vs self-hosted twin entries with uniform suffixes: `{base}-cloud` for the managed lane, `{base}-oss` for the self-hosted lane (redis, supabase, mongodb, docker, elasticsearch, grafana, terraform, ...). Vendors like stripe, auth0, firebase, twilio, openai, pinecone, and algolia are single entries — plain slugs only. - Slugs derived from package names use hyphens where the name uses a dot (e.g., "nextjs" not "next.js"; "vuejs" not "vue.js"). - Slugs are case-sensitive lowercase. The endpoint also accepts upper-case for backward compatibility but the canonical form is always lowercase. Risk: read-only, closed-world, idempotent — no state change possible.

  Parameters:

  • slug (required) — string — The tool's URL-safe identifier. Lowercase, hyphenated. Examples: "supabase", "cloud-run", "github-mcp"

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• zaira_compare_tools read-only

  Compare 2-3 developer tools or programming languages side by side. Returns each entry's full Markdown-KV block separated by "===". Alternatives and worksWith are enriched with tagline + agent-readiness for resolved slugs. If any requested slugs are not found, they appear in a trailing "Note: slugs not found: ..." line; the comparison still returns for the ones found. Examples: - Three search engines: {slugs: ["meilisearch-oss", "algolia", "elasticsearch-oss"]} - Two ORMs: {slugs: ["drizzle-orm", "prisma"]} - Three auth providers: {slugs: ["auth0", "clerk", "keycloak"]} - Hosted vs self-hosted for the same vendor: {slugs: ["redis-cloud", "redis-oss"]} — shows deployment trade-off - Postgres engine vs hosted offerings: {slugs: ["postgresql", "supabase-cloud", "cockroachdb-cloud"]} - Two languages for a CLI: {slugs: ["go", "rust"]} Edge cases: - Cross-category comparisons (e.g., {slugs: ["auth0", "redis-cloud"]}) are allowed but rarely useful. Same-category comparisons answer "which should I pick?" better; cross-category answers "these coexist in my stack" — a compatibility question. - Minimum 2 slugs, maximum 3. Four or more is a validation error; for more, run pairs. - Invalid or unknown slugs are listed under "slugs not found"; the partial comparison returns for valid ones. - Duplicate slugs in the array are deduplicated. - A few tools are single entries (no -cloud/-oss split): stripe, auth0, firebase, twilio, openai, pinecone, algolia. Don't pass "stripe-cloud" — it doesn't exist. Risk: read-only, closed-world, idempotent — no state change possible.

  Parameters:

  • slugs (required) — array — Array of 2-3 tool slugs to compare. Example: ["supabase", "firebase"]

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• zaira_list_categories read-only

  List all categories with the number of entries in each. Programming languages are the "language" category. Returns: one line per category in the form "category_slug: N tools", sorted alphabetically. Example call: no parameters. Edge cases: - Categories with zero tools do not appear in the output. - Category slugs are lowercase-alphanumeric with hyphens (e.g., "relational-database", "vector-database", "frontend-framework", "mcp-server"). They may differ from casual category names — the slug form is canonical. Risk: read-only, closed-world, idempotent — no state change possible.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• zaira_get_docs read-only

  Retrieve reference documentation for the Zaira Guide API and MCP server on demand. Topics: - getting_started — how to connect via MCP or REST, first queries - endpoints — full REST endpoint reference with parameters - mcp_tools — MCP tool reference with when-to-use guidance and a routing matrix - schema — the tool entry schema - errors — error taxonomy for REST (RFC 9457) and MCP (JSON-RPC) Call with no topic to get an index of available topics. Returns: the requested topic as a Markdown-KV block. With no topic, returns an index listing all available topics with short descriptions; call again with the relevant topic for the full content. Examples (topic selection): - "How do I call the REST API?" → {topic: "getting_started"} - "What parameters does /tools accept?" → {topic: "endpoints"} - "What fields are in a tool entry?" → {topic: "schema"} - "What error shapes do I handle, and what are the recovery steps?" → {topic: "errors"} - "Which MCP tool fits my task?" → {topic: "mcp_tools"} Edge cases: - No topic argument is valid — you get the index. This is the deferred-loading path; don't load every topic at once. - Topic must match the enum exactly (lowercase, underscore). "getting-started" with a hyphen is rejected as an unknown parameter. Risk: read-only, closed-world, idempotent — no state change possible.

  Parameters:

  • topic — string — Optional topic. One of: getting_started, endpoints, mcp_tools, schema, errors. Omit to get an index of available topics.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.