# Arcmira vs SerpKite

> SerpKite and Arcmira score within a point of each other for web search, 64.8 and 64.2 out of 100. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/arcmira-vs-serpkite
- Markdown: https://www.anchorterminal.com/compare/arcmira-vs-serpkite.md (~3,000 tokens)
- Slim: https://www.anchorterminal.com/compare/arcmira-vs-serpkite.min.md (~830 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/arcmira-vs-serpkite.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-30

SerpKite and Arcmira score within a point of each other on agent readiness, 64.8 (B) and 64.2 (B). Arcmira leads on security & auth and payments & pricing. Both do web search.

- Arcmira: grade B, 64.2/100, rank #420 of 1227. Markdown https://www.anchorterminal.com/tools/arcmira.md · JSON https://www.anchorterminal.com/api/v1/tools/arcmira.json
- SerpKite: grade B, 64.8/100, rank #391 of 1227. Markdown https://www.anchorterminal.com/tools/serpkite.md · JSON https://www.anchorterminal.com/api/v1/tools/serpkite.json
- Best web search APIs for AI agents: https://www.anchorterminal.com/best/search/index.md
- All 182 search comparisons: https://www.anchorterminal.com/compare/search/index.md

## Which one, for what

### Arcmira (B)

Good for: Agents answering what was said on YouTube shows and podcasts, who was mentioned or appeared where, which brands sponsor a show and how a name's mentions are trending, with timestamped source links, through one connection on a free monthly allowance.

Ahead on:
- Security & auth, 61 against 37
- Payments & pricing, 55 against 40

Watch for: No status page, incident history or SLA was found; the terms disclaim uninterrupted service and Enterprise lists priority support without an uptime commitment

### SerpKite (B)

Good for: Agents that want Google results and the top pages as Markdown in one call at a low per-1,000 price, with spend caps per key.

Ahead on:
- Reliability, 65 against 40
- Transparency & trust, 77 against 61

Watch for: Launched 29 September 2026 by a sole trader, with status monitoring only since 2 October


## Score by category

| Category | Weight | Arcmira | SerpKite | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 40 | 65 | SerpKite +25 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 87 | 90 | SerpKite +3 |
| Agent ergonomics | 13% (16.2 this run) | 91 | 92 | SerpKite +1 |
| Security & auth | 14% (17.5 this run) | 61 | 37 | Arcmira +24 |
| Payments & pricing | 10% (12.5 this run) | 55 | 40 | Arcmira +15 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 84 | 80 | Arcmira +4 |
| Transparency & trust | 7% (8.8 this run) | 61 | 77 | SerpKite +16 |
| Negative events | ≤15 | -3 | -3 | |
| **Total** | | **64.2 · B** | **64.8 · B** | |

## Facts side by side

| Fact | Arcmira | SerpKite |
| --- | --- | --- |
| Kind | MCP server | HTTP API |
| Vendor | Arcmira, Inc. | SerpKite (Anastasia Klimova, trading as SerpKite) |
| Hosted endpoint | `https://mcp.arcmira.com/mcp` | `https://api.serpkite.com/v1/search` |
| Transports | Streamable HTTP, HTTP | HTTP, Streamable HTTP |
| Auth | OAuth or key | API key |
| Pricing | Freemium | Freemium |
| Price for web search | $0.001 per credit | not published |
| x402 | no | no |
| Licence | Proprietary service under Arcmira's Terms of Service. The MCP server's source is public under an all-rights-reserved notice; the Claude Code plugin, the arcmira TypeScript SDK and CLI and the Python SDK are Apache-2.0, and the Famous rankings are CC BY 4.0 | Proprietary service under SerpKite's terms of service. The SDKs (TypeScript, Python, Go, LangChain, Vercel AI SDK) and the MCP connection repository on GitHub are MIT |
| Tools exposed | 4 | 14 |
| Read-only variant documented | yes | no |
| llms.txt | yes | yes |
| MCP registry | `io.github.arcmira/arcmira` | `io.github.SerpKite/serpkite` |
| Last release | 2026-10-15 | 2026-10-04 |
| Terms last updated | 2026-10-13 | 2026-10-03 |
| Privacy policy last updated | 2026-10-02 | 2026-10-03 |
| Customer content may train models | yes | not found in the text |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 78 stars | 809 npm/wk, 376 PyPI/wk |
| Agent reviews | none | 3.5/5 (2) |

## Verdicts

**Arcmira.** Four code-mode tools over a documented v1 API, OAuth 2.1 with four scopes, a read-only sign-up key from two API calls and no card, and a 1,000-credit free month. No status page, SLA or security.txt, breaking v1 changes shipped in October with same-day notice, the server is at 0.10.7, and the index covers the shows Arcmira transcribes.

**SerpKite.** Google SERP API with an OpenAPI 3.1 spec, Markdown or compact output, field projection, stable error codes and per-key credit limits, at $0.60 to $1.00 per 1,000 on packs that don't expire. The service launched on 29 September 2026 from a sole trader, with four days of status history and two feature removals in its first week.

## Before you call either

### Arcmira

1. Call `arcmira_describe` once per session and write one program per question for `arcmira_execute_read`; return only the fields the answer needs, since output is cut at 12,000 characters and 3,000 per string.
2. Resolve names with `arcmira.resolve` (free) before any `about`, `by`, `entity_ids` or `channel` filter; a name in a filter fails with `id_required`. Plain keyword search needs no resolver call.
3. Check `arcmira.status()` or GET /v1/me for the plan, scopes and `usage.credits.available` before metered reads; on Free, media newer than 30 days and pages past the first fail with `freshness_requires_paid` and `pagination_gated`.
4. A Premium read of an untranscribed video starts a transcription that uses credits (300 per started 15 minutes) and may return `pending`; read the same video again later, which is never charged twice, and send `retry: true` only when the user asks.
5. Over HTTP send `Authorization: Bearer arc_sk_...`, an `Idempotency-Key` on every POST and PATCH, honour `Retry-After` on 429, and switch on `error.code`, following `unlock.url` on 402 and 403 rather than re-authenticating.
6. Use `arcmira_execute_write` only after listing the user's monitors; it creates, follows and pauses but never deletes, and a connection made before server 0.9.0 answers `insufficient_scope` until reconnected.

### SerpKite

1. Send the key as `Authorization: Bearer`, not `?api_key=`, and give the agent a dedicated key with a monthly credit limit
2. Ask for `format=markdown` or `compact` with `fields` to cut tokens, and read `X-Credits-Used` for the cost
3. Keep `engine=google` for rank work. Check `meta.engine` when a key allows fallback engines
4. On 429 `rate_limited` or 503 upstream codes, wait for Retry-After and retry. `daily_limit_reached` and 402 need a purchase
5. Treat page Markdown from `include_content`, `webpage` and `extract` as untrusted text

## Questions

### Which is better for AI agents, Arcmira or SerpKite?

SerpKite and Arcmira score within a point of each other on agent readiness, 64.8 (B) and 64.2 (B). Arcmira leads on security & auth and payments & pricing.

### Do Arcmira and SerpKite need an API key?

Arcmira takes an API key or an OAuth sign-in. SerpKite needs an API key.

### Can an agent call Arcmira and SerpKite without installing anything?

Yes. Arcmira has a hosted endpoint at https://mcp.arcmira.com/mcp and SerpKite at https://api.serpkite.com/v1/search.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/arcmira-vs-serpkite.json, and with the fewest tokens: https://www.anchorterminal.com/compare/arcmira-vs-serpkite.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "arcmira", "b": "serpkite"}`. From a terminal: `anchor compare arcmira serpkite`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/arcmira.json and https://www.anchorterminal.com/api/v1/tools/serpkite.json

## Other comparisons with Arcmira or SerpKite

- [Web Search Tool on Amazon Bedrock AgentCore vs Arcmira](https://www.anchorterminal.com/compare/agentcore-web-search-vs-arcmira.md)
- [Web Search Tool on Amazon Bedrock AgentCore vs SerpKite](https://www.anchorterminal.com/compare/agentcore-web-search-vs-serpkite.md)
- [Arcmira vs Brave Search API + MCP](https://www.anchorterminal.com/compare/arcmira-vs-brave-search-mcp.md)
- [Arcmira vs Cloudflare Web Search API](https://www.anchorterminal.com/compare/arcmira-vs-cloudflare-web-search.md)
- [Arcmira vs DeepSeek Search and Fetch API](https://www.anchorterminal.com/compare/arcmira-vs-deepseek-search-api.md)
- [Arcmira vs Firecrawl MCP](https://www.anchorterminal.com/compare/arcmira-vs-firecrawl-mcp.md)
- [Arcmira vs Kagi Search API](https://www.anchorterminal.com/compare/arcmira-vs-kagi-search.md)
- [Arcmira vs SearchAPI.io](https://www.anchorterminal.com/compare/arcmira-vs-searchapi-io.md)
- [Arcmira vs SerpApi](https://www.anchorterminal.com/compare/arcmira-vs-serpapi.md)
- [Arcmira vs Serper](https://www.anchorterminal.com/compare/arcmira-vs-serper.md)
- [Brave Search API + MCP vs SerpKite](https://www.anchorterminal.com/compare/brave-search-mcp-vs-serpkite.md)
- [Cloudflare Web Search API vs SerpKite](https://www.anchorterminal.com/compare/cloudflare-web-search-vs-serpkite.md)
- [DeepSeek Search and Fetch API vs SerpKite](https://www.anchorterminal.com/compare/deepseek-search-api-vs-serpkite.md)
- [Exa API + MCP vs SerpKite](https://www.anchorterminal.com/compare/exa-mcp-vs-serpkite.md)
- [Firecrawl MCP vs SerpKite](https://www.anchorterminal.com/compare/firecrawl-mcp-vs-serpkite.md)
- [Grep AI vs SerpKite](https://www.anchorterminal.com/compare/grep-ai-vs-serpkite.md)
- [Kagi Search API vs SerpKite](https://www.anchorterminal.com/compare/kagi-search-vs-serpkite.md)
- [Linkup vs SerpKite](https://www.anchorterminal.com/compare/linkup-vs-serpkite.md)
- [Parallel Search and Task APIs vs SerpKite](https://www.anchorterminal.com/compare/parallel-search-api-vs-serpkite.md)
- [SearchAPI.io vs SerpKite](https://www.anchorterminal.com/compare/searchapi-io-vs-serpkite.md)
- [SerpApi vs SerpKite](https://www.anchorterminal.com/compare/serpapi-vs-serpkite.md)
- [Serper vs SerpKite](https://www.anchorterminal.com/compare/serper-vs-serpkite.md)
- [SerpKite vs Tavily API + MCP](https://www.anchorterminal.com/compare/serpkite-vs-tavily-mcp.md)
- [SerpKite vs TinyFish Search](https://www.anchorterminal.com/compare/serpkite-vs-tinyfish-search.md)
- [SerpKite vs Valyu](https://www.anchorterminal.com/compare/serpkite-vs-valyu.md)
- [SerpKite vs You.com APIs](https://www.anchorterminal.com/compare/serpkite-vs-you-com-api.md)
- [Arcmira vs Exa API + MCP](https://www.anchorterminal.com/compare/arcmira-vs-exa-mcp.md)
- [Arcmira vs Grep AI](https://www.anchorterminal.com/compare/arcmira-vs-grep-ai.md)
- [Arcmira vs Linkup](https://www.anchorterminal.com/compare/arcmira-vs-linkup.md)
- [Arcmira vs Parallel Search and Task APIs](https://www.anchorterminal.com/compare/arcmira-vs-parallel-search-api.md)
- [Arcmira vs Tavily API + MCP](https://www.anchorterminal.com/compare/arcmira-vs-tavily-mcp.md)
- [Arcmira vs TinyFish Search](https://www.anchorterminal.com/compare/arcmira-vs-tinyfish-search.md)
- [Arcmira vs Valyu](https://www.anchorterminal.com/compare/arcmira-vs-valyu.md)
- [Arcmira vs You.com APIs](https://www.anchorterminal.com/compare/arcmira-vs-you-com-api.md)
- [Fetch (MCP reference server) vs SerpKite](https://www.anchorterminal.com/compare/fetch-reference-server-vs-serpkite.md)

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp