{
  "data": {
    "a": {
      "slug": "arcmira",
      "name": "Arcmira",
      "vendor": "Arcmira, Inc.",
      "vendorUrl": "https://arcmira.com",
      "kind": "mcp",
      "category": "search",
      "summary": "Arcmira indexes YouTube and podcast transcripts and returns timestamped passages, entity mentions, channel sponsors and mention alerts through a remote MCP server, a REST API at api.arcmira.com/v1, a CLI and TypeScript and Python SDKs.",
      "url": "https://www.anchorterminal.com/tools/arcmira",
      "markdownUrl": "https://www.anchorterminal.com/tools/arcmira.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/arcmira.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/arcmira.json",
      "repo": "https://github.com/arcmira/mcp",
      "license": "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",
      "transports": [
        "streamable-http",
        "http"
      ],
      "remoteUrl": "https://mcp.arcmira.com/mcp",
      "packages": [
        {
          "registry": "npm",
          "name": "arcmira"
        },
        {
          "registry": "pypi",
          "name": "arcmira"
        }
      ],
      "auth": "mixed",
      "authNotes": "The MCP server at https://mcp.arcmira.com/mcp answers an unauthenticated request with 401 and OAuth protected-resource metadata; hosts sign in through api.arcmira.com with the authorization code flow, PKCE S256, dynamic client registration and refresh tokens, and the consent screen grants read access plus, if allowed, monitor changes (scopes read, monitors:write, trackers:write, recommendations:read). Any client can instead send an account key as `Authorization: Bearer arc_sk_...`. Dashboard keys carry all four scopes and show once; a key minted from `POST /v1/signups` and `/v1/signups/verify` (an email and a six-digit code, no browser) carries `read` only and never expires. Keys are disabled on the API keys page and take effect at once; hosts are revoked under Dashboard, Integrations. Plan gates, not scopes, decide Premium transcripts, fresh media and sponsor rows.",
      "pricing": "freemium",
      "pricingNotes": "Free plan with 1,000 credits a month, 2 monitored names and no card, which withholds the newest 30 days of media and the pages past the first. Pro $20 a month for 20,000 credits (7-day trial, card required), Pro+ $60 for 60,000 with sponsor and recommendation rows, Ultra $200 for 400,000, Enterprise by contract; yearly billing 20 per cent less. A search passage, mention or list row costs 4 credits past the first 5 of a request, a momentum call 10, a sponsor row 40, a monitor alert 25, captions 4 per started 15 minutes and a Premium transcript 300 per started 15 minutes of the whole video, once. Past the plan, on-demand usage costs $0.002 a credit up to a budget an admin sets; repeating a request within 7 days and failed Premium transcripts cost nothing (https://arcmira.com/docs/usage-and-billing.md, checked 2026-10-30).",
      "priceSummary": "$0.001 / credit",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the OpenAPI file, llms.txt, developers.md, the docs or the pricing page (checked 2026-10-30). Paid plans and on-demand usage are billed to a card through Stripe from the dashboard.",
        "endpoints": []
      },
      "toolCount": 4,
      "popularity": {
        "githubStars": 78,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-30"
      },
      "docsUrl": "https://arcmira.com/docs",
      "llmsTxt": "https://arcmira.com/llms.txt",
      "openapi": "https://api.arcmira.com/v1/openapi.json",
      "registryName": "io.github.arcmira/arcmira",
      "capabilities": [
        "search.research",
        "audio.transcribe",
        "social.analytics"
      ],
      "tags": [
        "hosted",
        "official",
        "closed-source",
        "openapi",
        "llms-txt",
        "mcp",
        "oauth",
        "cli",
        "typescript",
        "python",
        "webhooks",
        "free-tier",
        "no-card",
        "freemium",
        "pre-1.0",
        "agent-skills",
        "new"
      ],
      "lastRelease": "2026-10-15",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 64.2,
        "grade": "B",
        "agentReady": false,
        "rank": 420,
        "ranked": true,
        "rankOf": 1227,
        "categoryRank": 11,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 91,
          "maintenance": 84,
          "payments": 55,
          "reliability": 40,
          "schema": 87,
          "security": 61,
          "transparency": 61
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-30"
        },
        "negative": -3,
        "negativeNotes": [
          "Between 5 and 8 October 2026 the v1 API retired POST /v1/trackers (410 tracker_create_retired) and six tracker delivery fields for the team account model. The changelog says the first seven rows can break a client, and its entry is dated 8 October, the day the change finished, with no advance notice found. Documented the same day with typed codes, a 410 and a migration table, so deducted at the low end (-3). https://arcmira.com/docs/changelog.md"
        ],
        "verdict": "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.",
        "bestFor": "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.",
        "strengths": [
          "OAuth 2.1 for MCP hosts with PKCE S256, dynamic client registration, refresh tokens, revocation and four scopes, plus bearer keys that are read-only when minted from the API",
          "A public OpenAPI 3.1 file of 35 operations, an error catalogue of about 60 codes with `unlock.url` and `details.limit`, `Idempotency-Key` on every write and a request id on every response",
          "Four tools whose programs run in an isolate that never holds the key, bounded to 40 API calls, 30 seconds and 12,000 characters, with all four annotations declared",
          "Free plan of 1,000 credits a month without a card, prices in credits per read published on one page, and a key from two API calls with an email and a code",
          "Published limits of 60, 240 and 600 requests a minute by plan, `RateLimit-*` headers on every response and `Retry-After` on 429, and HMAC-SHA256 signed webhooks with secret rotation"
        ],
        "weaknesses": [
          "No status page, incident history or SLA was found; the terms disclaim uninterrupted service and Enterprise lists priority support without an uptime commitment",
          "No security.txt on any of the three hosts, no disclosure policy, bug bounty or certification, and the terms forbid probing for vulnerabilities",
          "The v1 API retired `POST /v1/trackers` and six tracker fields between 5 and 8 October 2026 with the changelog entry dated the day the change finished; the quickstart says routes arrive without notice",
          "The MCP server is at 0.10.7 after 30 releases in six weeks and two rounds of tool renames; the Free plan withholds the newest 30 days of media and pages past the first",
          "Every tool call, including the first 4,000 characters of the program and the agent's intent, is logged to the vendor's analytics with no opt-out, and the privacy policy states no retention periods",
          "Results are third-party speech with no prompt-injection guidance beyond checking the linked source, and support is one email address with no community channel"
        ],
        "agentNotes": [
          "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.",
          "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.",
          "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`.",
          "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.",
          "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.",
          "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."
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 64.2
          }
        ],
        "editorialScores": {
          "ergonomics": 91,
          "maintenance": 84,
          "payments": 55,
          "reliability": 40,
          "schema": 87,
          "security": 61,
          "transparency": 48
        },
        "provenanceScore": 73,
        "checked": {
          "categories": {
            "ergonomics": "2026-10-30",
            "maintenance": "2026-10-30",
            "payments": "2026-10-30",
            "reliability": "2026-10-30",
            "schema": "2026-10-30",
            "security": "2026-10-30",
            "transparency": "2026-10-30"
          },
          "last": "2026-10-30",
          "lastMoved": "2026-10-30",
          "oldest": "2026-10-30",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "install": "npm install arcmira",
        "http": "curl 'https://api.arcmira.com/v1/search?q=corporate%20cards\u0026limit=5' -H \"Authorization: Bearer $ARCMIRA_API_KEY\"",
        "claudeCode": "claude mcp add --transport http --scope user arcmira https://mcp.arcmira.com/mcp",
        "config": {
          "mcpServers": {
            "arcmira": {
              "url": "https://mcp.arcmira.com/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/search.research",
        "tool": "https://letme.dev/arcmira"
      },
      "area": "web-data",
      "unitPrices": [
        {
          "item": "Search passage, mention or list row (Pro plan credit)",
          "unit": "credit",
          "usd": 0.001,
          "note": "a plan credit on Pro and Pro+; a passage, mention or list row costs 4 credits past the first 5 of a request, so a request of 5 or fewer rows costs nothing; $0.0005 a credit on Ultra"
        },
        {
          "item": "On-demand credit",
          "unit": "credit",
          "usd": 0.002,
          "note": "usage past the plan's credits, up to an admin-set monthly budget, invoiced in steps from $20"
        },
        {
          "item": "Premium transcript, 15 minutes",
          "unit": "call",
          "usd": 0.3,
          "note": "300 credits per started 15 minutes of the whole video, once per account, at $0.001 a Pro plan credit; $0.60 on-demand, $0.15 on Ultra"
        },
        {
          "item": "Monitor alert",
          "unit": "call",
          "usd": 0.025,
          "note": "25 credits at $0.001 a Pro plan credit; $0.05 on-demand"
        },
        {
          "item": "Sponsor or commercial row",
          "unit": "record",
          "usd": 0.04,
          "note": "40 credits, Pro+ and above only, at $0.001 a plan credit"
        },
        {
          "item": "Pro plan",
          "unit": "month",
          "usd": 20,
          "note": "20,000 credits a month, 10 monitored names, 7-day trial with a card; Pro+ $60 for 60,000, Ultra $200 for 400,000; yearly billing 20 per cent less"
        }
      ],
      "provenance": {
        "legalEntity": "Arcmira, Inc.",
        "domain": "arcmira.com",
        "domainRegistered": "2014-06-05",
        "endpointOnVendorDomain": true,
        "terms": "https://arcmira.com/terms",
        "privacy": "https://arcmira.com/privacy",
        "statusPage": "",
        "changelog": "https://arcmira.com/docs/changelog",
        "securityTxt": "none",
        "checked": "2026-10-30",
        "notes": [
          "The Terms of Service (effective 13 October 2026) and the privacy policy (effective 2 October 2026) name Arcmira, Inc., a company based in San Francisco, California, governed by California law with AAA consumer arbitration in San Francisco County. The contact address on both is contact@arcmira.com; support is hi@arcmira.com and sales is sales@arcmira.com.",
          "RDAP for arcmira.com gives a registration date of 2014-06-05 and a last change on 2024-09-10, the month the GitHub organisation was created (23 September 2024). The Wayback Machine holds captures of the domain from 2011 under earlier owners, so the registration date says nothing about the product's age.",
          "firstReleased is 2026-08-22, when the arcmira npm package was first published and the arcmira/arcmira repository's history begins. The vendor's docs changelog dates the first public API (v1.0.0) to April 2026 without a day, so the product is older than this date shows. The MCP server's first registry version, 0.3.0, is dated 4 September 2026.",
          "https://arcmira.com/.well-known/security.txt, https://api.arcmira.com/.well-known/security.txt and https://mcp.arcmira.com/.well-known/security.txt answer 404. https://arcmira.com/status, /about, /blog and /changelog answer 403 with 'Your request was blocked'; the static sitemap lists none of them.",
          "robots.txt on the three arcmira.com hosts disallows ClaudeBot, Claude-Web and anthropic-ai and allows Claude-User and Claude-SearchBot by name; the 30 October 2026 batch file records the decision to research on that basis. Paths disallowed for every agent (/api/, /dashboard, /search, /chat, /monitors and others) were not fetched."
        ],
        "score": 73
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/arcmira.json",
      "live": {
        "slug": "arcmira",
        "probe": {
          "target": "https://mcp.arcmira.com/mcp",
          "method": "mcp-initialize",
          "lastAt": "2026-10-30T17:21:26.033779545Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 128,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 281,
          "p95ms24h": 465,
          "samples24h": 18,
          "samples30d": 18,
          "days": [
            {
              "date": "2026-10-30",
              "probes": 18,
              "ok": 18
            }
          ]
        },
        "updatedAt": "2026-10-30T17:21:26.033779545Z"
      }
    },
    "answer": "Exa API + MCP scores 66.1 (B) on agent readiness against Arcmira's 64.2 (B), and leads in 5 of 7 scored categories. Arcmira leads on security \u0026 auth.",
    "b": {
      "slug": "exa-mcp",
      "name": "Exa API + MCP",
      "vendor": "Exa",
      "vendorUrl": "https://exa.ai",
      "kind": "mcp",
      "category": "search",
      "summary": "Exa's REST API over its own web index, with the official MCP server in front of it.",
      "url": "https://www.anchorterminal.com/tools/exa-mcp",
      "markdownUrl": "https://www.anchorterminal.com/tools/exa-mcp.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/exa-mcp.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/exa-mcp.json",
      "repo": "https://github.com/exa-labs/exa-mcp-server",
      "license": "MIT",
      "transports": [
        "stdio",
        "streamable-http",
        "http"
      ],
      "remoteUrl": "https://mcp.exa.ai/mcp",
      "packages": [
        {
          "registry": "npm",
          "name": "exa-js"
        },
        {
          "registry": "pypi",
          "name": "exa-py"
        },
        {
          "registry": "npm",
          "name": "exa-mcp-server"
        }
      ],
      "auth": "mixed",
      "authNotes": "API key as `Authorization: Bearer` or `x-api-key` header, created at dashboard.exa.ai. POST /search and /contents also accept an x402 `PAYMENT-SIGNATURE` header instead of a key. MCP server: Anonymous use with rate limits; optional API key via ?exaApiKey=, Authorization: Bearer or x-api-key header; OAuth login at https://mcp.exa.ai/mcp?login.",
      "pricing": "freemium",
      "pricingNotes": "$10 free credit a month (resets on the 1st) plus a one-time $10 sign-up bonus, no payment method required. Pay as you go per 1,000 requests, lite search $4, auto $7, deep-lite and deep $12, each with up to 10 results and $1 per 1,000 extra results. Legacy types keep their prices, instant $4, fast $7, deep-reasoning $15. Contents $1 per 1,000 pages per content type, answer $5 per 1,000, monitors $15 per 1,000. Agent API $0.012 to $1.00 a run by effort, ultra usage-based. Dynamic Highlights and the 19 October index additions at no extra charge. Enterprise volume pricing by quote (https://exa.ai/pricing).",
      "priceSummary": "$0.007 / call",
      "where": "both",
      "x402": {
        "level": "yes",
        "evidence": "Official 'Pay with x402' guide. POST /search and /contents accept x402 with USDC on Arc, Base (eip155:8453), World Chain or Solana, including Circle Gateway nanopayments, and the guide prices `lite` at $0.004 a request. An unpaid POST /search returned 402 on 2026-09-30; the guide was re-read on 2026-10-21 without a probe (https://exa.ai/docs/integrations/payments/x402/quickstart.md)",
        "endpoints": [
          {
            "url": "https://api.exa.ai/search",
            "priceUsd": 0.007,
            "network": "eip155:8453"
          },
          {
            "url": "https://api.exa.ai/contents",
            "priceUsd": 0.001,
            "network": "eip155:8453"
          }
        ]
      },
      "toolCount": 4,
      "popularity": {
        "githubStars": 4900,
        "npmWeekly": 1076635,
        "pypiWeekly": 1406207,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://exa.ai/docs",
      "llmsTxt": "https://exa.ai/docs/llms.txt",
      "openapi": "https://exa.ai/docs/exa-spec.yaml",
      "registryName": "ai.exa/exa",
      "capabilities": [
        "web.search",
        "web.fetch",
        "web.extract",
        "search.answer",
        "search.research",
        "search.news"
      ],
      "tags": [
        "official",
        "hosted",
        "local",
        "open-source",
        "x402",
        "freemium",
        "llms-txt",
        "no-card",
        "openapi",
        "python",
        "typescript",
        "enterprise",
        "webhooks",
        "mcp"
      ],
      "lastRelease": "2026-10-19",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 66.1,
        "grade": "B",
        "agentReady": false,
        "rank": 346,
        "ranked": true,
        "rankOf": 1227,
        "categoryRank": 7,
        "methodology": "0.7",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 96,
          "maintenance": 88,
          "payments": 90,
          "reliability": 67,
          "schema": 86,
          "security": 43,
          "transparency": 64
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-21"
        },
        "negative": -9,
        "negativeNotes": [
          "2026-04-15. Exa's own fix (#292) says Agnost analytics on the hosted MCP captured headers, query parameters and full URLs from every request and sent them to api.agnost.ai, which leaked user API keys passed as `x-api-key` or `?exaApiKey=`. Fixed the same day, but disclosed only in the commit message, with no advisory or rotation notice that we found. Decayed for the fix, so -6 (https://github.com/exa-labs/exa-mcp-server/commit/49797a5376217da506853b12163f21db9f9c95b8)",
          "2026-10-01. The MCP server calls Agnost's `trackMCP` on startup in both the hosted and the npm stdio builds, with no README mention and no opt-out. Inputs, outputs and errors are switched off, so the events are tool names and timings. -3 (https://github.com/exa-labs/exa-mcp-server/blob/main/src/mcp-handler.ts)"
        ],
        "verdict": "x402 on /search and /contents in USDC on Base or Solana, so an agent can pay per call with no account. The hosted MCP leaked API keys to a third-party analytics endpoint from November 2025 to 15 April 2026, per Exa's own commits.",
        "bestFor": "Agents that search in natural language and want short highlights or page text in the same call, and for keyless or wallet-paid use.",
        "strengths": [
          "x402 on /search and /contents in USDC on Arc, Base, World Chain or Solana, so an agent can pay per call with no account",
          "Two default MCP tools for keyless use, about 1,250 characters of descriptions, and every tool marked read-only",
          "Keys can be minted by API with their own rate limit and budget",
          "Public OpenAPI, llms.txt, an error-codes page, and search warnings for request fields that have no effect",
          "$10 of credit a month with no payment method, and `lite` search at $4 per 1,000"
        ],
        "weaknesses": [
          "The hosted MCP leaked API keys to a third-party analytics endpoint from November 2025 to 15 April 2026, per Exa's own commits",
          "Agnost usage analytics in the MCP server with no disclosure or opt-out",
          "The privacy policy says query data trains Exa's models and gives no retention period",
          "No security.txt, no SECURITY.md and no prompt-injection guidance",
          "Agents API had 4 hours 56 minutes of elevated run failures on 21 to 22 September"
        ],
        "agentNotes": [
          "Send the key as `x-api-key` or a Bearer header, never `?exaApiKey=` in the MCP URL",
          "Ask for highlights rather than full text, and cap `maxCharacters` on `web_fetch_exa`",
          "Request only the results you'll read. More than 10 costs extra, and x402 calls stop at 10",
          "On 429, honour `Retry-After`. The QPS limit is shared by every key on the team",
          "Use `type: \"lite\"` for cheap searches, and `auto` when you need summaries, live fetches or other parameters `lite` rejects",
          "Dynamic Highlights still needs the `Exa-Beta: dynamic-highlights-2026-08-28` header per the docs, despite the GA announcement",
          "Set `budget.maxCostDollars` on `agent_run`, which a keyed MCP connection may now expose by default"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 4.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.7",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 66.1
          }
        ],
        "editorialScores": {
          "ergonomics": 96,
          "maintenance": 88,
          "payments": 90,
          "reliability": 67,
          "schema": 86,
          "security": 43,
          "transparency": 44
        },
        "provenanceScore": 83,
        "checked": {
          "categories": {
            "ergonomics": "2026-10-21",
            "maintenance": "2026-10-21",
            "payments": "2026-10-21",
            "reliability": "2026-10-21",
            "schema": "2026-10-21",
            "security": "2026-10-21",
            "transparency": "2026-10-21"
          },
          "last": "2026-10-21",
          "lastMoved": "2026-10-27",
          "oldest": "2026-10-21",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "http": "curl -s -X POST https://api.exa.ai/search \\\n  -H \"Authorization: Bearer $EXA_API_KEY\" -H \"Content-Type: application/json\" \\\n  -d '{\"query\":\"recent techniques for improving retrieval in RAG systems\",\"type\":\"auto\",\"contents\":{\"highlights\":true}}'",
        "claudeCode": "claude mcp add --transport http exa https://mcp.exa.ai/mcp",
        "config": {
          "mcpServers": {
            "exa": {
              "url": "https://mcp.exa.ai/mcp"
            }
          }
        },
        "x402": "curl -s https://api.exa.ai/search -H 'content-type: application/json' -d '{\"query\":\"x402 facilitators\",\"numResults\":5}' -i\n# HTTP/1.1 402 Payment Required\n# PAYMENT-REQUIRED: \u003cbase64 JSON: accepts[{scheme:\"exact\",network:\"eip155:8453\",amount:\"7000\",asset:USDC,payTo:...}]\u003e\n# retry with PAYMENT-SIGNATURE: \u003cbase64 signed authorization\u003e"
      },
      "letme": {
        "capability": "https://letme.dev/web.search",
        "tool": "https://letme.dev/exa-mcp"
      },
      "area": "web-data",
      "unitPrices": [
        {
          "item": "Search, auto",
          "unit": "1k-requests",
          "usd": 7,
          "note": "up to 10 results; legacy fast at the same price"
        },
        {
          "item": "Search, lite",
          "unit": "1k-requests",
          "usd": 4,
          "note": "up to 10 results, cached content only; legacy instant at the same price"
        },
        {
          "item": "Search, deep",
          "unit": "1k-requests",
          "usd": 12
        },
        {
          "item": "Contents",
          "unit": "1k-pages",
          "usd": 1,
          "note": "per content type"
        },
        {
          "item": "Answer",
          "unit": "1k-requests",
          "usd": 5
        }
      ],
      "provenance": {
        "legalEntity": "Exa Labs Inc.",
        "domain": "exa.ai",
        "domainRegistered": "2017-12-16",
        "endpointOnVendorDomain": true,
        "terms": "https://exa.ai/assets/Exa_Labs_Terms_of_Service.pdf",
        "privacy": "https://exa.ai/privacy-policy",
        "statusPage": "https://status.exa.ai",
        "changelog": "https://exa.ai/docs/changelog",
        "securityTxt": "none",
        "checked": "2026-10-21",
        "score": 83
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/exa-mcp.json",
      "live": {
        "slug": "exa-mcp",
        "probe": {
          "target": "https://mcp.exa.ai/mcp",
          "method": "mcp-initialize",
          "lastAt": "2026-10-30T17:21:33.891965173Z",
          "lastOk": true,
          "lastStatus": 200,
          "lastMs": 192,
          "lastNote": "initialize answered",
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 99.9,
          "p50ms24h": 196,
          "p95ms24h": 257,
          "samples24h": 250,
          "samples30d": 8168,
          "days": [
            {
              "date": "2026-09-29",
              "probes": 286,
              "ok": 286
            },
            {
              "date": "2026-09-30",
              "probes": 286,
              "ok": 286
            },
            {
              "date": "2026-10-01",
              "probes": 276,
              "ok": 276
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
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              "ok": 266
            },
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              "ok": 247
            },
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              "date": "2026-10-13",
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            },
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              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
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              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
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              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
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              "probes": 253,
              "ok": 253
            },
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              "probes": 256,
              "ok": 256
            },
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              "date": "2026-10-19",
              "probes": 255,
              "ok": 255
            },
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              "ok": 252
            },
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              "probes": 253,
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            },
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              "ok": 248
            },
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              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-10-25",
              "probes": 250,
              "ok": 250
            },
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              "date": "2026-10-26",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-27",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-28",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-10-29",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-30",
              "probes": 181,
              "ok": 181
            }
          ],
          "outages": [
            {
              "start": "2026-10-04T18:58:14.45236595Z",
              "end": "2026-10-04T19:19:43.996268604Z",
              "note": "HTTP 503 server error"
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.exa.ai",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-30T16:04:27.053277803Z"
        },
        "versions": [
          {
            "registry": "mcp-registry",
            "name": "ai.exa/exa",
            "version": "3.4.1",
            "seenAt": "2026-10-30T14:54:40.546478788Z"
          },
          {
            "registry": "npm",
            "name": "exa-js",
            "version": "2.26.0",
            "seenAt": "2026-10-30T14:11:52.871108897Z"
          },
          {
            "registry": "npm",
            "name": "exa-mcp-server",
            "version": "3.4.2",
            "seenAt": "2026-10-30T14:11:54.022901308Z"
          },
          {
            "registry": "pypi",
            "name": "exa-py",
            "version": "2.26.0",
            "released": "2026-10-19",
            "seenAt": "2026-10-30T14:11:53.835848341Z"
          }
        ],
        "githubStars": 5201,
        "npmWeekly": 1181281,
        "pypiWeekly": 1513252,
        "securityTxt": {
          "url": "https://exa.ai/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-30T15:38:48.988632199Z"
        },
        "llmsTxt": {
          "url": "https://exa.ai/docs/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-30T15:07:24.582518029Z"
        },
        "domain": {
          "domain": "exa.ai",
          "registered": "2017-12-16",
          "source": "https://rdap.identitydigital.services/rdap/domain/exa.ai",
          "checkedAt": "2026-10-25T13:56:17.055174216Z"
        },
        "pages": [
          {
            "url": "https://exa.ai/docs/changelog",
            "kind": "deprecations",
            "status": 200,
            "checkedAt": "2026-10-30T05:39:49.278429353Z",
            "changedAt": "2026-10-29T05:06:59.283286026Z",
            "fingerprint": "75eb1d59aa2c"
          },
          {
            "url": "https://exa.ai/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-30T05:39:51.527015923Z",
            "changedAt": "2026-10-30T05:39:51.527015923Z",
            "fingerprint": "d95773ba4444"
          },
          {
            "url": "https://exa.ai/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-30T05:39:53.442904726Z",
            "changedAt": "2026-10-30T05:39:53.442904726Z",
            "fingerprint": "3179927f8850"
          }
        ],
        "mcpTools": {
          "url": "https://mcp.exa.ai/mcp",
          "checkedAt": "2026-10-30T00:48:49.779820502Z",
          "status": "ok",
          "protocol": "2025-11-25",
          "tools": [
            {
              "name": "web_search_exa",
              "title": "Web Search",
              "description": "Search the web for any topic and get clean, ready-to-use content.\n\n      Best for: Finding current information, news, facts, people, companies, or answering questions about any topic.\n      Returns: Clean text content from top search results.\n\n      Query tips:\n      describe the ideal page, not keywords. \"blog post comparing React and Vue performance\" not \"React vs Vue\".\n      Use category:people / category:company to search through Linkedin profiles / companies respectively.\n      If highlights are insufficient, follow up with web_fetch_exa on the best URLs.",
              "inputSchema": {
                "$schema": "http://json-schema.org/draft-07/schema#",
                "additionalProperties": false,
                "properties": {
                  "numResults": {
                    "description": "Number of search results to return (default: 10).",
                    "type": "number"
                  },
                  "objective": {
                    "description": "Goal for this search turn; say which documents should rank first, which should be excluded, and what specific facts or figures to pull from them.",
                    "maxLength": 4096,
                    "minLength": 1,
                    "type": "string"
                  },
                  "query": {
                    "description": "Natural language search query. Should be a semantically rich description of the ideal page, not just keywords. Optionally include category:\u003ctype\u003e (company, people) to focus results — e.g. 'category:people John Doe software engineer'.",
                    "minLength": 1,
                    "type": "string"
                  }
                },
                "required": [
                  "query",
                  "objective"
                ],
                "type": "object"
              },
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": true,
                "openWorldHint": true,
                "readOnlyHint": true
              }
            },
            {
              "name": "web_fetch_exa",
              "title": "Fetch Web Pages",
              "description": "Read a webpage's full content as clean markdown. Use after web_search_exa when highlights are insufficient or to read any URL.\n\nBest for: Extracting full content from known URLs. Batch multiple URLs in one call.\nReturns: Clean text content and metadata from the page(s).",
              "inputSchema": {
                "$schema": "http://json-schema.org/draft-07/schema#",
                "additionalProperties": false,
                "properties": {
                  "maxCharacters": {
                    "description": "Maximum characters to extract per page (default: 3000)",
                    "minimum": 1,
                    "type": "number"
                  },
                  "urls": {
                    "description": "URLs to read. Batch multiple URLs in one call.",
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "urls"
                ],
                "type": "object"
              },
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": true,
                "openWorldHint": true,
                "readOnlyHint": true
              }
            }
          ],
          "schemaTokens": 605,
          "changedAt": "2026-09-28T21:55:38.894181746Z",
          "check": {
            "checker": "anchor-check/1.0",
            "totalTokens": 605,
            "counts": {
              "error": 0,
              "note": 1,
              "warn": 0
            },
            "findings": [
              {
                "rule": "TC24",
                "severity": "note",
                "message": "2 of 2 tools have no outputSchema",
                "fix": "Declare outputSchema for tools that return structured data, and return structuredContent that matches it."
              }
            ]
          }
        },
        "github": {
          "repo": "exa-labs/exa-mcp-server",
          "checkedAt": "2026-10-26T07:26:14.714846572Z",
          "stars": 5169,
          "archived": false,
          "issuesEnabled": true,
          "pushedAt": "2026-10-19T19:23:37Z",
          "openIssues": 11,
          "openPRs": 9,
          "issuesOpened90d": 28,
          "issuesClosed90d": 28,
          "prsMerged90d": 21,
          "ci": {
            "branch": "main",
            "runs": 50,
            "success": 47,
            "failure": 3,
            "other": 0,
            "latest": "success",
            "latestAt": "2026-10-19T19:24:11Z"
          },
          "replies": {
            "sampled": 25,
            "unanswered": 8,
            "medianDays": 30.5
          }
        },
        "updatedAt": "2026-10-30T17:21:33.891965173Z"
      }
    },
    "facts": [
      {
        "a": "MCP server",
        "b": "MCP server",
        "name": "Kind"
      },
      {
        "a": "Arcmira, Inc.",
        "b": "Exa",
        "name": "Vendor"
      },
      {
        "a": "https://mcp.arcmira.com/mcp",
        "b": "https://mcp.exa.ai/mcp",
        "name": "Hosted endpoint"
      },
      {
        "a": "Streamable HTTP, HTTP",
        "b": "stdio, Streamable HTTP, HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "OAuth or key",
        "name": "Auth"
      },
      {
        "a": "Freemium",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "yes, from $0.007/call",
        "name": "x402"
      },
      {
        "a": "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",
        "b": "MIT",
        "name": "Licence"
      },
      {
        "a": "4",
        "b": "4",
        "name": "Tools exposed"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "io.github.arcmira/arcmira",
        "b": "ai.exa/exa",
        "name": "MCP registry"
      },
      {
        "a": "2026-10-15",
        "b": "2026-10-19",
        "name": "Last release"
      },
      {
        "a": "2026-10-13",
        "b": "",
        "name": "Terms last updated"
      },
      {
        "a": "2026-10-02",
        "b": "2026-06-29",
        "name": "Privacy policy last updated"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "b": "",
        "name": "Terms restrict automated access"
      },
      {
        "a": "yes",
        "b": "",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "yes",
        "b": "",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "yes",
        "b": "",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "78 stars",
        "b": "4.9k stars, 1.1M npm/wk, 1.4M PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "4.5/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Exa API + MCP scores 66.1 (B) on agent readiness against Arcmira's 64.2 (B), and leads in 5 of 7 scored categories. Arcmira leads on security \u0026 auth.",
        "question": "Which is better for AI agents, Arcmira or Exa API + MCP?"
      },
      {
        "answer": "Both take an API key or an OAuth sign-in. An agent can also pay Exa API + MCP per call over x402, with no account.",
        "question": "Do Arcmira and Exa API + MCP need an API key?"
      },
      {
        "answer": "Yes. Arcmira has a hosted endpoint at https://mcp.arcmira.com/mcp and Exa API + MCP at https://mcp.exa.ai/mcp.",
        "question": "Can an agent call Arcmira and Exa API + MCP without installing anything?"
      },
      {
        "answer": "No open-source release is listed for Arcmira. Exa API + MCP is open source (MIT).",
        "question": "Are Arcmira and Exa API + MCP open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Security \u0026 auth, 61 against 43"
        ],
        "also": null,
        "goodFor": "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.",
        "slug": "arcmira",
        "watchFor": "No status page, incident history or SLA was found; the terms disclaim uninterrupted service and Enterprise lists priority support without an uptime commitment"
      },
      {
        "aheadOn": [
          "Reliability, 67 against 40",
          "Agent ergonomics, 96 against 91",
          "Payments \u0026 pricing, 90 against 55"
        ],
        "also": [
          "An agent can pay per call over x402, with no account",
          "Runs on your own machine",
          "Open source"
        ],
        "goodFor": "Agents that search in natural language and want short highlights or page text in the same call, and for keyless or wallet-paid use.",
        "slug": "exa-mcp",
        "watchFor": "The hosted MCP leaked API keys to a third-party analytics endpoint from November 2025 to 15 April 2026, per Exa's own commits"
      }
    ],
    "job": {
      "capability": "search.research",
      "name": "Research search"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/agentcore-web-search-vs-arcmira.json",
        "title": "Web Search Tool on Amazon Bedrock AgentCore vs Arcmira",
        "url": "https://www.anchorterminal.com/compare/agentcore-web-search-vs-arcmira"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agentcore-web-search-vs-exa-mcp.json",
        "title": "Web Search Tool on Amazon Bedrock AgentCore vs Exa API + MCP",
        "url": "https://www.anchorterminal.com/compare/agentcore-web-search-vs-exa-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-brave-search-mcp.json",
        "title": "Arcmira vs Brave Search API + MCP",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-brave-search-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-cloudflare-web-search.json",
        "title": "Arcmira vs Cloudflare Web Search API",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-cloudflare-web-search"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-deepseek-search-api.json",
        "title": "Arcmira vs DeepSeek Search and Fetch API",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-deepseek-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-firecrawl-mcp.json",
        "title": "Arcmira vs Firecrawl MCP",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-firecrawl-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-kagi-search.json",
        "title": "Arcmira vs Kagi Search API",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-kagi-search"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-searchapi-io.json",
        "title": "Arcmira vs SearchAPI.io",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-searchapi-io"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-serpapi.json",
        "title": "Arcmira vs SerpApi",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-serpapi"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-serper.json",
        "title": "Arcmira vs Serper",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-serper"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-serpkite.json",
        "title": "Arcmira vs SerpKite",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-serpkite"
      },
      {
        "json": "https://www.anchorterminal.com/compare/brave-search-mcp-vs-exa-mcp.json",
        "title": "Brave Search API + MCP vs Exa API + MCP",
        "url": "https://www.anchorterminal.com/compare/brave-search-mcp-vs-exa-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-web-search-vs-exa-mcp.json",
        "title": "Cloudflare Web Search API vs Exa API + MCP",
        "url": "https://www.anchorterminal.com/compare/cloudflare-web-search-vs-exa-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-search-api-vs-exa-mcp.json",
        "title": "DeepSeek Search and Fetch API vs Exa API + MCP",
        "url": "https://www.anchorterminal.com/compare/deepseek-search-api-vs-exa-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-firecrawl-mcp.json",
        "title": "Exa API + MCP vs Firecrawl MCP",
        "url": "https://www.anchorterminal.com/compare/exa-mcp-vs-firecrawl-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-kagi-search.json",
        "title": "Exa API + MCP vs Kagi Search API",
        "url": "https://www.anchorterminal.com/compare/exa-mcp-vs-kagi-search"
      },
      {
        "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-linkup.json",
        "title": "Exa API + MCP vs Linkup",
        "url": "https://www.anchorterminal.com/compare/exa-mcp-vs-linkup"
      },
      {
        "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-parallel-search-api.json",
        "title": "Exa API + MCP vs Parallel Search and Task APIs",
        "url": "https://www.anchorterminal.com/compare/exa-mcp-vs-parallel-search-api"
      },
      {
        "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-searchapi-io.json",
        "title": "Exa API + MCP vs SearchAPI.io",
        "url": "https://www.anchorterminal.com/compare/exa-mcp-vs-searchapi-io"
      },
      {
        "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-serpapi.json",
        "title": "Exa API + MCP vs SerpApi",
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      {
        "json": "https://www.anchorterminal.com/compare/exa-mcp-vs-valyu.json",
        "title": "Exa API + MCP vs Valyu",
        "url": "https://www.anchorterminal.com/compare/exa-mcp-vs-valyu"
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      {
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        "title": "Exa API + MCP vs You.com APIs",
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      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-grep-ai.json",
        "title": "Arcmira vs Grep AI",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-grep-ai"
      },
      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-linkup.json",
        "title": "Arcmira vs Linkup",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-linkup"
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      {
        "json": "https://www.anchorterminal.com/compare/arcmira-vs-parallel-search-api.json",
        "title": "Arcmira vs Parallel Search and Task APIs",
        "url": "https://www.anchorterminal.com/compare/arcmira-vs-parallel-search-api"
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      {
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        "arcmira": 40,
        "by": 27,
        "edge": "exa-mcp",
        "exa-mcp": 67,
        "key": "reliability",
        "name": "Reliability",
        "weight": 16
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        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
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      {
        "arcmira": 87,
        "by": 1,
        "edge": "arcmira",
        "exa-mcp": 86,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "arcmira": 91,
        "by": 5,
        "edge": "exa-mcp",
        "exa-mcp": 96,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13
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      {
        "arcmira": 61,
        "by": 18,
        "edge": "arcmira",
        "exa-mcp": 43,
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14
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      {
        "arcmira": 55,
        "by": 35,
        "edge": "exa-mcp",
        "exa-mcp": 90,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
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        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
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        "arcmira": 84,
        "by": 4,
        "edge": "exa-mcp",
        "exa-mcp": 88,
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        "weight": 7
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        "arcmira": 61,
        "by": 3,
        "edge": "exa-mcp",
        "exa-mcp": 64,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
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      "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.",
      "exa-mcp": "x402 on /search and /contents in USDC on Base or Solana, so an agent can pay per call with no account. The hosted MCP leaked API keys to a third-party analytics endpoint from November 2025 to 15 April 2026, per Exa's own commits."
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  "markdown": "Exa API + MCP scores 66.1 (B) on agent readiness against Arcmira's 64.2 (B), and leads in 5 of 7 scored categories. Arcmira leads on security \u0026 auth. Both do research search. Exa API + MCP accepts x402. Arcmira doesn't.\n\n- 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\n- Exa API + MCP: grade B, 66.1/100, rank #346 of 1227. Markdown https://www.anchorterminal.com/tools/exa-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/exa-mcp.json\n- Best web search APIs for AI agents: https://www.anchorterminal.com/best/search/index.md\n- All 182 search comparisons: https://www.anchorterminal.com/compare/search/index.md\n\n## Which one, for what\n\n### Arcmira (B)\n\nGood 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.\n\nAhead on:\n- Security \u0026 auth, 61 against 43\n\nWatch for: No status page, incident history or SLA was found; the terms disclaim uninterrupted service and Enterprise lists priority support without an uptime commitment\n\n### Exa API + MCP (B)\n\nGood for: Agents that search in natural language and want short highlights or page text in the same call, and for keyless or wallet-paid use.\n\nAhead on:\n- Reliability, 67 against 40\n- Agent ergonomics, 96 against 91\n- Payments \u0026 pricing, 90 against 55\n\nAlso in its favour:\n- An agent can pay per call over x402, with no account\n- Runs on your own machine\n- Open source\n\nWatch for: The hosted MCP leaked API keys to a third-party analytics endpoint from November 2025 to 15 April 2026, per Exa's own commits\n\n\n## Score by category\n\n| Category | Weight | Arcmira | Exa API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 40 | 67 | Exa API + MCP +27 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 87 | 86 | Arcmira +1 |\n| Agent ergonomics | 13% (16.2 this run) | 91 | 96 | Exa API + MCP +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 61 | 43 | Arcmira +18 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 55 | 90 | Exa API + MCP +35 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 84 | 88 | Exa API + MCP +4 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 61 | 64 | Exa API + MCP +3 |\n| Negative events | ≤15 | -3 | -9 | |\n| **Total** | | **64.2 · B** | **66.1 · B** | |\n\n## Facts side by side\n\n| Fact | Arcmira | Exa API + MCP |\n| --- | --- | --- |\n| Kind | MCP server | MCP server |\n| Vendor | Arcmira, Inc. | Exa |\n| Hosted endpoint | `https://mcp.arcmira.com/mcp` | `https://mcp.exa.ai/mcp` |\n| Transports | Streamable HTTP, HTTP | stdio, Streamable HTTP, HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Freemium | Freemium |\n| x402 | no | yes, from $0.007/call |\n| 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 | MIT |\n| Tools exposed | 4 | 4 |\n| Read-only variant documented | yes | yes |\n| llms.txt | yes | yes |\n| MCP registry | `io.github.arcmira/arcmira` | `ai.exa/exa` |\n| Last release | 2026-10-15 | 2026-10-19 |\n| Terms last updated | 2026-10-13 |  |\n| Privacy policy last updated | 2026-10-02 | 2026-06-29 |\n| Customer content may train models | yes | yes |\n| Terms restrict automated access | yes |  |\n| Terms restrict benchmarking | yes |  |\n| Terms or service can change without notice | yes |  |\n| Arbitration or class-action waiver | yes |  |\n| Popularity | 78 stars | 4.9k stars, 1.1M npm/wk, 1.4M PyPI/wk |\n| Agent reviews | none | 4.5/5 (2) |\n\n## Verdicts\n\n**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.\n\n**Exa API + MCP.** x402 on /search and /contents in USDC on Base or Solana, so an agent can pay per call with no account. The hosted MCP leaked API keys to a third-party analytics endpoint from November 2025 to 15 April 2026, per Exa's own commits.\n\n## Before you call either\n\n### Arcmira\n\n1. 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.\n2. 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.\n3. 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`.\n4. 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.\n5. 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.\n6. 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.\n\n### Exa API + MCP\n\n1. Send the key as `x-api-key` or a Bearer header, never `?exaApiKey=` in the MCP URL\n2. Ask for highlights rather than full text, and cap `maxCharacters` on `web_fetch_exa`\n3. Request only the results you'll read. More than 10 costs extra, and x402 calls stop at 10\n4. On 429, honour `Retry-After`. The QPS limit is shared by every key on the team\n5. Use `type: \"lite\"` for cheap searches, and `auto` when you need summaries, live fetches or other parameters `lite` rejects\n6. Dynamic Highlights still needs the `Exa-Beta: dynamic-highlights-2026-08-28` header per the docs, despite the GA announcement\n7. Set `budget.maxCostDollars` on `agent_run`, which a keyed MCP connection may now expose by default\n\n## Questions\n\n### Which is better for AI agents, Arcmira or Exa API + MCP?\n\nExa API + MCP scores 66.1 (B) on agent readiness against Arcmira's 64.2 (B), and leads in 5 of 7 scored categories. Arcmira leads on security \u0026 auth.\n\n### Do Arcmira and Exa API + MCP need an API key?\n\nBoth take an API key or an OAuth sign-in. An agent can also pay Exa API + MCP per call over x402, with no account.\n\n### Can an agent call Arcmira and Exa API + MCP without installing anything?\n\nYes. Arcmira has a hosted endpoint at https://mcp.arcmira.com/mcp and Exa API + MCP at https://mcp.exa.ai/mcp.\n\n### Are Arcmira and Exa API + MCP open source?\n\nNo open-source release is listed for Arcmira. Exa API + MCP is open source (MIT).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/arcmira-vs-exa-mcp.json, and with the fewest tokens: https://www.anchorterminal.com/compare/arcmira-vs-exa-mcp.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"arcmira\", \"b\": \"exa-mcp\"}`. From a terminal: `anchor compare arcmira exa-mcp`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/arcmira.json and https://www.anchorterminal.com/api/v1/tools/exa-mcp.json\n\n## Other comparisons with Arcmira or Exa API + MCP\n\n- [Web Search Tool on Amazon Bedrock AgentCore vs Arcmira](https://www.anchorterminal.com/compare/agentcore-web-search-vs-arcmira.md)\n- [Web Search Tool on Amazon Bedrock AgentCore vs Exa API + MCP](https://www.anchorterminal.com/compare/agentcore-web-search-vs-exa-mcp.md)\n- [Arcmira vs Brave Search API + MCP](https://www.anchorterminal.com/compare/arcmira-vs-brave-search-mcp.md)\n- [Arcmira vs Cloudflare Web Search API](https://www.anchorterminal.com/compare/arcmira-vs-cloudflare-web-search.md)\n- [Arcmira vs DeepSeek Search and Fetch API](https://www.anchorterminal.com/compare/arcmira-vs-deepseek-search-api.md)\n- [Arcmira vs Firecrawl MCP](https://www.anchorterminal.com/compare/arcmira-vs-firecrawl-mcp.md)\n- [Arcmira vs Kagi Search API](https://www.anchorterminal.com/compare/arcmira-vs-kagi-search.md)\n- [Arcmira vs SearchAPI.io](https://www.anchorterminal.com/compare/arcmira-vs-searchapi-io.md)\n- [Arcmira vs SerpApi](https://www.anchorterminal.com/compare/arcmira-vs-serpapi.md)\n- [Arcmira vs Serper](https://www.anchorterminal.com/compare/arcmira-vs-serper.md)\n- [Arcmira vs SerpKite](https://www.anchorterminal.com/compare/arcmira-vs-serpkite.md)\n- [Brave Search API + MCP vs Exa API + MCP](https://www.anchorterminal.com/compare/brave-search-mcp-vs-exa-mcp.md)\n- [Cloudflare Web Search API vs Exa API + MCP](https://www.anchorterminal.com/compare/cloudflare-web-search-vs-exa-mcp.md)\n- [DeepSeek Search and Fetch API vs Exa API + MCP](https://www.anchorterminal.com/compare/deepseek-search-api-vs-exa-mcp.md)\n- [Exa API + MCP vs Firecrawl MCP](https://www.anchorterminal.com/compare/exa-mcp-vs-firecrawl-mcp.md)\n- [Exa API + MCP vs Kagi Search API](https://www.anchorterminal.com/compare/exa-mcp-vs-kagi-search.md)\n- [Exa API + MCP vs Linkup](https://www.anchorterminal.com/compare/exa-mcp-vs-linkup.md)\n- [Exa API + MCP vs Parallel Search and Task APIs](https://www.anchorterminal.com/compare/exa-mcp-vs-parallel-search-api.md)\n- [Exa API + MCP vs SearchAPI.io](https://www.anchorterminal.com/compare/exa-mcp-vs-searchapi-io.md)\n- [Exa API + MCP vs SerpApi](https://www.anchorterminal.com/compare/exa-mcp-vs-serpapi.md)\n- [Exa API + MCP vs Serper](https://www.anchorterminal.com/compare/exa-mcp-vs-serper.md)\n- [Exa API + MCP vs SerpKite](https://www.anchorterminal.com/compare/exa-mcp-vs-serpkite.md)\n- [Exa API + MCP vs Tavily API + MCP](https://www.anchorterminal.com/compare/exa-mcp-vs-tavily-mcp.md)\n- [Exa API + MCP vs TinyFish Search](https://www.anchorterminal.com/compare/exa-mcp-vs-tinyfish-search.md)\n- [Exa API + MCP vs Valyu](https://www.anchorterminal.com/compare/exa-mcp-vs-valyu.md)\n- [Exa API + MCP vs You.com APIs](https://www.anchorterminal.com/compare/exa-mcp-vs-you-com-api.md)\n- [Arcmira vs Grep AI](https://www.anchorterminal.com/compare/arcmira-vs-grep-ai.md)\n- [Arcmira vs Linkup](https://www.anchorterminal.com/compare/arcmira-vs-linkup.md)\n- [Arcmira vs Parallel Search and Task APIs](https://www.anchorterminal.com/compare/arcmira-vs-parallel-search-api.md)\n- [Arcmira vs Tavily API + MCP](https://www.anchorterminal.com/compare/arcmira-vs-tavily-mcp.md)\n- [Arcmira vs TinyFish Search](https://www.anchorterminal.com/compare/arcmira-vs-tinyfish-search.md)\n- [Arcmira vs Valyu](https://www.anchorterminal.com/compare/arcmira-vs-valyu.md)\n- [Arcmira vs You.com APIs](https://www.anchorterminal.com/compare/arcmira-vs-you-com-api.md)\n- [Exa API + MCP vs Grep AI](https://www.anchorterminal.com/compare/exa-mcp-vs-grep-ai.md)\n- [Exa API + MCP vs Fetch (MCP reference server)](https://www.anchorterminal.com/compare/exa-mcp-vs-fetch-reference-server.md)\n",
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