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It's a split decision.
YepAPI is a multi-category API for developers who want SEO and SERP data, scraping, social and commerce data, and AI models through one key and JSON responses. SocialData is narrower: it retrieves public X data through REST or MCP and charges per result. Both offer usage-based access without a recurring subscription. Pick based on the data you need; SocialData publishes a standard request limit, while YepAPI says it has no rate limits.
01Side by side
| YepAPI | SocialData | |
|---|---|---|
| Pricing model | Prepaid, per-call usage; no subscription or minimum | Prepaid, per-result usage; balance never expires |
| Free tier | $5 signup credit; no card required | Free allowance up to 3 requests per minute |
| API and SDKs | One key and JSON across SEO, scraping, social, AI | REST bearer token for public X data; no SDK |
| CLI and docs | API docs, llms.txt, MCP server and agent skills | API docs; curl and Postman work as HTTP clients |
| Integrations | Claude Code, Cursor, Codex, MCP and agent skills | MCP server and plain HTTP clients |
| Limits and scaling | No rate limits; failed calls are not charged | 120 requests per minute standard; failed requests free |
| Platforms | Web API; Claude Code, Cursor, Codex and MCP | Web REST/MCP; Claude Code, Codex, Cursor, Windsurf, Claude Desktop |
| Lock-in and data export | Broad endpoint range; shared key and consistent JSON | Public X endpoints; bearer token and structured JSON |
YepAPI Choose YepAPI if
- Choose YepAPI if one integration needs SEO, scraping, social data and AI models.
- Choose YepAPI if you want one API key and consistent JSON across categories.
- Choose YepAPI if you need AI models alongside data APIs.
SocialData Choose SocialData if
- Choose SocialData if your application needs public X data only.
- Choose SocialData if you want per-result billing and a balance that never expires.
- Choose SocialData if you need its published 120-requests-per-minute standard limit.
02Pricing at real usage
YepAPI gives new users $5 in signup credit, with no card required. The pricing page lists Google SERP and web scraping from $0.01 per call, and keyword overview from $0.03 per call. Other endpoints and models have their own usage prices; there is no monthly fee or minimum, and failed calls are not charged. The service says it has no rate limits.
SocialData offers a free allowance of up to 3 requests per minute. Its standard price is $0.0002 per tweet or profile result on most endpoints, equivalent to $0.20 per 1,000 results. A prepaid balance does not expire, and failed requests do not consume it. The standard rate limit is 120 requests per minute. Search monitors, extended bio lookups, and follow, retweet, and reply checks have separate listed charges; monitor rates vary. Custom rates are available by contacting support. Neither service charges a subscription or seat fee.
03API, SDKs and integration
YepAPI presents a shared API key for SEO, SERP, scraping, social and commerce data, and 285 AI models. Its homepage shows POST requests with JSON bodies and JSON responses, and links to API documentation and an llms.txt prompt for coding agents. It also names an MCP server and agent skills, with Claude Code, Cursor, and Codex among the integrations. The homepage does not name language-specific SDKs.
SocialData exposes public X data through a REST API authenticated with a bearer token. Its homepage says endpoints return structured JSON and work with curl, Postman, or an existing HTTP client; it also says there is no SDK or pagination library. Its API documentation covers the endpoints, and its MCP server has 14 read-only tools for supported assistants, including Claude Code, Codex, Cursor, Windsurf, and Claude Desktop. Neither product requires an X account connection for its listed API access. Choose the integration surface that matches your existing HTTP or MCP workflow.
04Open source, self-hosting and lock-in
Neither vendor publishes an open-source license or a self-hosting option. Both products are presented as vendor APIs, so your application depends on the vendor’s service rather than a server you operate. Ask each vendor about deployment choices and data handling if those are requirements.
The products expose different scopes. YepAPI groups SEO, scraping, social and commerce data, and AI models behind one key and a consistent JSON format. That can reduce the number of integrations in an application, but moving workloads elsewhere would mean replacing the endpoints they use. SocialData is focused on public X data; its REST calls use a bearer token and return structured JSON. Replacing it means migrating those X-specific calls and mapping their responses to another provider. Neither vendor describes a general data-export or migration tool, so plan to retain any results your application needs.
Questions people ask
Is YepAPI cheaper than SocialData?
They bill different units, so the listed rates are not directly comparable. YepAPI prices calls by endpoint, with Google SERP and scraping from $0.01 per call. SocialData charges $0.0002 per tweet or profile result on most endpoints. Estimate your request volume and results per request against the specific endpoints you plan to use.
Which API has rate limits?
SocialData lists a standard limit of 120 requests per minute and a free allowance of up to 3 requests per minute. YepAPI says it has no rate limits. Both say failed requests are not charged, though SocialData specifies that they do not consume the prepaid balance.
Can I use YepAPI or SocialData with an MCP client?
Yes. YepAPI lists an MCP server and names Claude Code, Cursor, and Codex among its agent integrations. SocialData provides an MCP server with 14 read-only tools and lists Claude Code, Codex, Cursor, Windsurf, and Claude Desktop as supported assistants.
Which service should I use for X data?
SocialData is specifically for retrieving public X data, including posts, profiles, followers, and search results. YepAPI also offers social data, but it spans other categories such as SEO, scraping, commerce, and AI models. Compare the relevant endpoint coverage and pricing before choosing YepAPI for an X-only workload.