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It's a split decision.
YepAPI suits developers who want one usage-billed API for SEO, scraping, social and e-commerce data, plus AI models. TwitterAPI.io is the narrower choice for public X data, with search, profiles, follower data and real-time delivery. Both offer hosted APIs and MCP access. YepAPI starts with $5 in signup credit and charges by endpoint or usage; TwitterAPI.io offers up to $1 in credits and charges per returned item, with a Business subscription option.
01Side by side
| YepAPI | TwitterAPI.io | |
|---|---|---|
| Pricing model | Pay per call or metered usage; no subscriptions | Pay per returned item; optional Business subscription |
| Signup credit | $5 credit; no card required | Up to $1 in credits; no card required |
| Data and model coverage | SEO, scraping, social, commerce, 285 AI models | Public X search, profiles, timelines, follower data |
| API access | Shared API key; HTTP POST endpoint examples | REST API; X-API-Key authentication |
| Response and output formats | JSON; scraping supports markdown, HTML, screenshots | Public X data through REST endpoints |
| MCP and agent integrations | MCP server, agent skills; Claude Code, Cursor, Codex | Hosted MCP for Claude, GPT, Cursor, other clients |
| Real-time delivery | No real-time delivery method listed | Webhook rules and WebSocket streams |
| Throughput and rate limits | Pricing page lists no rate limits | Homepage advertises 1,000+ requests per second |
YepAPI Choose YepAPI if
- Choose YepAPI if you need SEO, scraping and AI models together.
- Choose YepAPI if endpoint-level pricing fits your workload.
- Choose YepAPI if one key and JSON responses simplify integration.
TwitterAPI.io Choose TwitterAPI.io if
- Choose TwitterAPI.io if your app needs public X data.
- Choose TwitterAPI.io if you need webhook or WebSocket delivery.
- Choose TwitterAPI.io if per-result billing matches your query patterns.
02Pricing at real usage
YepAPI bills per API call or other usage unit, with no subscription or monthly minimum. It gives $5 in signup credit, and failed calls are not charged. Listed examples include Google SERP at $0.01 per call, scraping at $0.01, keyword overview at $0.03, and AI media from $0.03 per image or $0.192 per video second. Costs depend on the endpoint and model you choose. TwitterAPI.io offers up to $1 in signup credits and bills pay-as-you-go per returned item: $0.15 per 1,000 tweets, profiles from $0.01 per 1,000 users, and a $0.00015 minimum per request. Its Business subscription grants extra credits, but the subscription price is not published. Base credits carry over; bonus credits expire after 31 days. Choose based on workload: endpoint pricing for mixed services, per-result pricing for X data.
03API, SDKs and integration
YepAPI's homepage shows HTTP POST endpoint examples and a shared API key, with consistent JSON responses across endpoints and models. Scraping can return markdown, HTML or screenshots. The homepage points developers to its docs and llms.txt, and names an MCP server, agent skills, Claude Code, Cursor and Codex. TwitterAPI.io provides a REST API for public X data, using the X-API-Key header in its curl example. Its docs include Swagger and a Postman collection; the homepage lists 75 endpoints for tweets, users, search, trends and more. Its hosted MCP server supports Claude, GPT, Cursor and other MCP clients. Neither homepage names a language-specific SDK, so check the vendors' docs for any SDKs or language support before choosing an implementation. For real-time feeds, TwitterAPI.io lists webhook rules and WebSocket streams; YepAPI's homepage does not list a delivery method for streaming updates.
04Open source, self-hosting and lock-in
Neither vendor publishes an open-source license or self-hosting option. Both offer hosted APIs, so applications depend on vendor endpoints, credentials and billing. YepAPI spans SEO, scraping, social and commerce data, and AI models; moving those calls means replacing integrations endpoint by endpoint. TwitterAPI.io is focused on public X data, so its API is more specific to that source. Neither vendor documents a bulk data export path. Keep records your application needs in your own storage, and put vendor calls behind an adapter so you can change credentials or providers without rewriting business logic. Before committing, ask each vendor about data retention, export options, and what happens to stored data when an account closes.
Questions people ask
Which API is better for public X data?
TwitterAPI.io is the direct fit for public X data. It lists search, profiles, timelines, follower data, replies, quotes and retweeters, plus webhook rules and WebSocket streams. YepAPI includes social data among several categories, but its core offering is broader than X.
Can YepAPI replace separate SEO and scraping APIs?
YepAPI combines SEO and SERP data with web scraping, social and e-commerce data, and 285 AI models behind one API key. That may consolidate integrations for those categories. Check its endpoint documentation against your required fields and response formats before replacing existing services.
Which API costs less?
It depends on the workload. YepAPI lists Google SERP at $0.01 per call and scraping at $0.01 per call. TwitterAPI.io lists $0.15 per 1,000 tweets and profiles from $0.01 per 1,000 users. Compare the relevant endpoints and returned-item volumes, not just signup credits.
Do both offer MCP integrations?
Yes. YepAPI lists an MCP server and agent skills, with Claude Code, Cursor and Codex named on its homepage. TwitterAPI.io offers a hosted MCP server for Claude, GPT, Cursor and other MCP clients. Both also expose APIs for direct application integration.