shouldiuse.io

VERDICT

Should I use APIs.io?

Search APIs by provider, schema, or name. Find the right API for what you want to accomplish. - apis.io

Worth it. Buy if you need to find or catalog APIs — it is free, open source, and increasingly machine-readable for AI agents. Skip it if you want vetted quality ratings, billing, or API management; it only indexes what providers publish.

Confidence

Medium. Based on ~14 public sources; no independent user reviews or ratings found.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support qualityNo support evidence found
  • Security posture

Pricing

$0

Open source

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes

Best for

  • Developers hunting APIs by task
  • AI agents needing machine-readable API discovery
  • Teams benchmarking API pricing and security
  • API providers wanting discoverability

Not for

  • Teams needing an API gateway or management platform
  • Buyers expecting vetted reviews or quality scores
  • Non-technical users wanting plug-and-play integrations
  • Enterprises needing SLA-backed vendor support

Gotchas - check before you buy

medium

Listed API pricing comes from providers themselves — verify terms before committing

medium

Community open-source project; support and uptime are best-effort

low

Rate limits apply to search API usage — check plans and rate limits pages

low

Guess: coverage gaps likely for niche, private, or undocumented APIs

Pros and cons

Pros

  • Free, open source API search engine
  • Search by provider, schema, or intent
  • Agent-friendly; increasingly used by LLMs
  • Indexes pricing plans, OpenAPI specs, and security posture
  • Profiles major providers: Reddit, G2, NVD, Trustpilot

Cons

  • No quality ratings or user reviews; discovery only
  • Small operation (API Evangelist LLC), not a vendor
  • Coverage uneven; some providers list very few APIs

Sources & method

Analyzed 9/25/2026 - 11 sources - No known vulnerabilities found in the sources reviewed.

official x7review x2security x1news x1

Key stats

  • Value for money: 5/5

    Rating

  • $0

    Starting price

  • 11

    Sources

  • Analyzed

  • Value for money: 5/5. Free and open source
  • Ease of use: 4/5. Search by intent, provider, or schema
  • Feature depth: 4/5. Indexes specs, pricing, security posture
  • Support quality. No support evidence found
  • Security posture: 4/5. Publishes security artifacts; no known issues
  • Free Price Open source project
  • 140K Weekly page views Per operator, one week
  • Yes AI-agent access Federated, agent-friendly index
  • Reddit Provider example 21 APIs listed

Pricing

Open source

$0

  • Full API search
  • Agent-friendly access

Security

No known vulnerabilities found in the sources reviewed.

What users say

No independent user reviews found; attention centers on LLM/agentic use and heavy traffic rather than buyer feedback.

Full analysis

Based on ~14 public sources; no independent user reviews or ratings found.

Free, open-source API search engine. Great for discovery and AI agents; not a marketplace, gateway, or quality rater.

Methodology

Based on ~14 public sources; no independent user reviews or ratings found.

Sources

  1. APIs.io — Search APIs by What You Want to Accomplishapis.io
    official
  2. APIs.io GitHub repository (open source)github.com
    official
  3. APIs.io GitHub org — federated, agent-friendlygithub.com
    official
  4. About APIs.io — Federated API Search Networkapis.io
    official
  5. API Pricing Plans — apis.ioapis.io
    official
  6. Product security pageapis.io
    security
  7. Reddit — API Provider, Schemas (21 APIs listed)apis.io
    official
  8. G2 — API Provider (2 APIs listed)apis.io
    official
  9. Kin Lane — 140k page views on apis.io last weeklinkedin.com
    news
  10. The API Review for the APIs.io Search APIapievangelist.com
    review
  11. Best free-to-use APIs — r/webdevreddit.com
    review

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