{
  "data": {
    "a": {
      "slug": "fuse-mcp",
      "name": "Fuse MCP",
      "vendor": "FuseAI, LLC",
      "vendorUrl": "https://fuseai.com",
      "kind": "mcp",
      "category": "lead-data",
      "summary": "Fuse MCP is the hosted MCP server for Fuse AI's sales platform. It lets an assistant search people and companies, enrich contacts, manage lists and campaigns, and send email and LinkedIn messages from a signed-in Fuse account.",
      "url": "https://www.anchorterminal.com/tools/fuse-mcp",
      "markdownUrl": "https://www.anchorterminal.com/tools/fuse-mcp.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/fuse-mcp.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/fuse-mcp.json",
      "license": "Proprietary hosted service under FuseAI's terms of service. No public source repository found",
      "transports": [
        "streamable-http"
      ],
      "remoteUrl": "https://mcp.fuseai.com",
      "packages": [],
      "auth": "oauth",
      "authNotes": "Access is self-serve. The client registers itself by dynamic client registration, then a person signs in to their Fuse account in a browser (email and password, Google or Microsoft, with a verified email address) and approves the connection. The flow is authorisation code with PKCE (S256) and the single scope `mcp:tools`. The connection runs as that user with all of their permissions. Access tokens last one hour, refresh tokens rotate on each use and last 30 days from last use. There is no API-key route into the MCP server. The separate REST API takes `af_` keys over HTTP Basic, limited to any of nine scopes.",
      "pricing": "freemium",
      "pricingNotes": "Free plan at $0, then Solo $60 a month with 480,000 credits a year and Team $200 a month with 1,200,000, with 20 per cent off for annual billing. Enterprise is by quote. The pricing page gives the Free allowance as 24,000 credits a year on the plan card and 2,000 in the usage table. MCP calls spend the same credits as the app, and every call needs a balance of at least 100. The Solo card lists MCP among its integrations, and we could not confirm from the page that the Free plan includes it. Top-up prices are shown only in the app. We did not attempt signup, so whether a card is asked for is unchecked (https://fuseai.com/pricing, checked 2026-10-08).",
      "priceSummary": "$60 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the MCP docs, the REST docs, the OpenAPI spec or the pricing page (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": 290,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://docs.fuseai.com/mcp/connect",
      "llmsTxt": "https://docs.fuseai.com/llms.txt",
      "openapi": "https://docs.fuseai.com/openapi.json",
      "capabilities": [
        "lead.search",
        "lead.enrichment",
        "email.finder",
        "email.verification",
        "data.company",
        "email.send",
        "search.research"
      ],
      "tags": [
        "hosted",
        "mcp",
        "oauth",
        "freemium",
        "sales",
        "outreach",
        "enrichment",
        "lead-search",
        "llms-txt",
        "openapi",
        "closed-source",
        "new"
      ],
      "lastRelease": "2026-10-07",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 47.9,
        "grade": "D",
        "agentReady": false,
        "rank": 543,
        "ranked": true,
        "rankOf": 629,
        "categoryRank": 11,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 57,
          "maintenance": 35,
          "payments": 30,
          "reliability": 40,
          "schema": 72,
          "security": 45,
          "transparency": 49
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "The server documents 290 tools with read-only and destructive annotations, OAuth with PKCE and dynamic client registration, and published limits of 60 requests a minute. The single `mcp:tools` scope grants everything the user can do, sends happen at once with no undo, and no status page, changelog or security contact was found.",
        "bestFor": "Suited to a salesperson or founder who wants an assistant to build prospect lists, enrich them and run email and LinkedIn outreach inside one Fuse account.",
        "strengths": [
          "Every tool carries `readOnlyHint` or `destructiveHint` per the docs, and the tool reference marks 113 read-only, 144 writing and 33 destructive",
          "OAuth authorisation code with PKCE and dynamic client registration, one-hour access tokens and rotating refresh tokens",
          "MCP limits are published at 60 requests a minute and 5,000 a day per user, with `RATE_LIMIT_EXCEEDED` on 429",
          "Credit costs per action are public, reads are free, and `get_credit_prices` returns current prices before a call",
          "llms.txt, Markdown docs, a skill file and an OpenAPI 3.1 spec with 146 operations for the REST API beside it"
        ],
        "weaknesses": [
          "The only OAuth scope is `mcp:tools`, so a connection can do everything its user can, including sending email and LinkedIn messages",
          "The 290 tools come to about half a megabyte of descriptions and schemas, with no toolsets or read-only subset",
          "The October 2026 rebuild removed the earlier tools such as `prospect_search`, and the docs say the server does not announce tool list changes",
          "No status page, changelog, SLA, security.txt or disclosure contact was found on the site or in the docs",
          "Vendor pages disagree on the Free allowance (24,000 credits a year or 2,000) and on the provider count (40+, 39 or 20+)"
        ],
        "agentNotes": [
          "Keep the client's approval prompt on for every tool that is not read-only. Sends, CRM pushes and Slack posts run at once with no undo",
          "Launch a campaign only on an explicit request. Creating one makes a draft, and `update_campaign_status_tool` starts real outreach",
          "Call `get_credits_balance` and `get_credit_prices` first. Every call needs at least 100 credits, and searches cost 2 credits a result",
          "Resolve filter values with `lookup_filter_values` or `get_company_search_enums` before `search_people` or `search_companies`",
          "Start long work with `deep_research_start`, then poll `deep_research_status`. A tool call has 60 seconds, and runs take 5 to 20 minutes"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 47.9
          }
        ],
        "editorialScores": {
          "ergonomics": 57,
          "maintenance": 35,
          "payments": 30,
          "reliability": 40,
          "schema": 72,
          "security": 45,
          "transparency": 36
        },
        "provenanceScore": 62
      },
      "connect": {
        "claudeCode": "claude mcp add --transport http fuse https://mcp.fuseai.com",
        "config": {
          "mcpServers": {
            "fuse": {
              "url": "https://mcp.fuseai.com"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/lead.search",
        "tool": "https://letme.dev/fuse-mcp"
      },
      "area": "web-data",
      "unitPrices": [
        {
          "item": "Free plan",
          "unit": "month",
          "usd": 0,
          "note": "1 seat. The pricing page shows 24,000 credits a year on the plan card and 2,000 in the usage table"
        },
        {
          "item": "Solo plan",
          "unit": "month",
          "usd": 60,
          "note": "1 seat, 480,000 credits a year"
        },
        {
          "item": "Team plan",
          "unit": "month",
          "usd": 200,
          "note": "5 seats, 1,200,000 credits a year"
        }
      ],
      "provenance": {
        "legalEntity": "FuseAI, LLC",
        "domain": "fuseai.com",
        "domainRegistered": "2017-03-11",
        "endpointOnVendorDomain": true,
        "terms": "https://fuseai.com/legal/terms-of-service",
        "privacy": "https://fuseai.com/legal/privacy-policy",
        "statusPage": "",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-08",
        "notes": [
          "The terms of service (last updated 1 July 2026) give the contracting party as FuseAI, LLC with the contact hello@tryfuse.ai and no postal address. The company page says the team is in San Francisco.",
          "The MCP server answers at mcp.fuseai.com and its authorisation server at core.backend.fuseai.com. The REST API is on api.tryfuse.ai, the vendor's earlier domain, and tryfuse.ai redirects to fuseai.com.",
          "fuseai.com/.well-known/security.txt and docs.fuseai.com/.well-known/security.txt return 404.",
          "No status page or changelog is linked from the site, the docs index or the sitemap. status.fuseai.com, status.tryfuse.ai and trust.fuseai.com did not connect from our network.",
          "RDAP for fuseai.com gives a registration date of 2017-03-11, so the domain predates the company's use of it. The domain's history before Fuse was not checked."
        ],
        "score": 62
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/fuse-mcp.json",
      "live": {
        "slug": "fuse-mcp",
        "probe": {
          "target": "https://mcp.fuseai.com",
          "method": "mcp-initialize",
          "lastAt": "2026-10-08T19:08:47.35199571Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 519,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 340,
          "p95ms24h": 409,
          "samples24h": 42,
          "samples30d": 42,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 42,
              "ok": 42
            }
          ]
        },
        "securityTxt": {
          "url": "https://fuseai.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:38:54.377906274Z"
        },
        "pages": [
          {
            "url": "https://fuseai.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:36.957807227Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "21fee727aa20"
          },
          {
            "url": "https://fuseai.com/legal/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:32.740120656Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "d35ecd9cf6d0"
          },
          {
            "url": "https://fuseai.com/legal/terms-of-service",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:35.055158028Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "911a898c524d"
          }
        ],
        "updatedAt": "2026-10-08T19:08:47.35199571Z"
      }
    },
    "answer": "Hunter API + MCP scores 56.5 (C) on agent readiness against Fuse MCP's 47.9 (D), and leads in 5 of 7 scored categories. Fuse MCP leads on security \u0026 auth.",
    "b": {
      "slug": "hunter",
      "name": "Hunter API + MCP",
      "vendor": "Hunter",
      "vendorUrl": "https://hunter.io",
      "kind": "http-api",
      "category": "lead-data",
      "summary": "Email finder, email verifier, domain search, company discovery and person and company enrichment over a REST API, plus a hosted MCP server that also drives Hunter's leads, lists and cold-email sequences.",
      "url": "https://www.anchorterminal.com/tools/hunter",
      "markdownUrl": "https://www.anchorterminal.com/tools/hunter.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/hunter.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/hunter.json",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.hunter.io/v2",
      "packages": [],
      "auth": "mixed",
      "authNotes": "REST takes the key in the `X-API-Key` header (the `?api_key=` query form still works but puts the key in logs). Hosted MCP at mcp.hunter.io uses OAuth for Claude, ChatGPT and Gemini, or the same `X-API-Key` header for other clients. A `test-api-key` returns dummy responses on Domain Search, Email Finder and Email Verifier.",
      "pricing": "freemium",
      "pricingNotes": "Free plan with 50 credits a month and API access. Starter $49 a month ($34 billed yearly, 2,000 credits), Growth $149 ($104 yearly, 10,000 credits), Scale $299 ($209 yearly, 25,000 credits), Enterprise custom. One credit per email found by Email Finder or Domain Search (Bulk Domain Search is 1 credit per 10 emails), 0.5 per verification, nothing when no result comes back, and repeat lookups count once per billing period. Discover (company search) and Email Count are free. An API-only Data Platform sells search and verification credits in bulk, valid 12 months (https://hunter.io/pricing).",
      "priceSummary": "$49 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402 mention in the API docs, MCP docs or pricing (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": 107,
      "popularity": {
        "githubStars": 9,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://hunter.io/api-documentation/v2",
      "llmsTxt": "https://hunter.io/llms.txt",
      "openapi": "https://hunter.io/openapi.json",
      "capabilities": [
        "email.finder",
        "email.verification",
        "lead.search",
        "lead.enrichment",
        "data.company",
        "data.person"
      ],
      "tags": [
        "lead-search",
        "enrichment",
        "email-verification",
        "hosted",
        "freemium",
        "no-card",
        "mcp",
        "llms-txt",
        "openapi",
        "webhooks",
        "closed-source"
      ],
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 56.5,
        "grade": "C",
        "agentReady": false,
        "rank": 435,
        "ranked": true,
        "rankOf": 629,
        "categoryRank": 6,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 54,
          "maintenance": 63,
          "payments": 40,
          "reliability": 50,
          "schema": 90,
          "security": 33,
          "transparency": 78
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Returns 451 for people who asked not to be processed. Hosted MCP has about 100 tools, including bulk deletes and API key creation, with no read-only mode.",
        "bestFor": "Finding and verifying work emails from a domain or a name, where GDPR handling of the people looked up matters.",
        "strengths": [
          "Returns 451 for people who asked not to be processed",
          "Privacy policy names its sources, cites a legitimate interest assessment and DPIA, and hosts in Belgium",
          "Free plan with API and MCP access, no card",
          "Charges only when an email is found or a verification completes, and repeats in a billing period are free",
          "OpenAPI JSON, llms.txt, llms-full.txt and a test key with dummy responses"
        ],
        "weaknesses": [
          "Hosted MCP has about 100 tools, including bulk deletes and API key creation, with no read-only mode",
          "API key accepted in the `api_key` query string",
          "Rate limits answer 403 and quota exhaustion answers 429",
          "No security page, security.txt, bug bounty or certification found",
          "Status page renders client-side and its history couldn't be read"
        ],
        "agentNotes": [
          "Treat 451 as final. The person opted out and retrying won't help",
          "Back off on 403 with a rate-limit message. 429 means the plan's credits are gone",
          "Send the key in `X-API-Key`, never as `?api_key=`",
          "Use `test-api-key` to check request shapes without spending credits",
          "Use the hosted MCP at mcp.hunter.io/mcp, not the deprecated local npm package"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 56.5
          }
        ],
        "editorialScores": {
          "ergonomics": 54,
          "maintenance": 63,
          "payments": 40,
          "reliability": 50,
          "schema": 90,
          "security": 33,
          "transparency": 71
        },
        "provenanceScore": 84
      },
      "connect": {
        "http": "curl \"https://api.hunter.io/v2/domain-search?domain=stripe.com\u0026limit=5\" -H \"X-API-Key: $HUNTER_API_KEY\"",
        "claudeCode": "claude mcp add --transport http hunter https://mcp.hunter.io/mcp"
      },
      "letme": {
        "capability": "https://letme.dev/email.finder",
        "tool": "https://letme.dev/hunter"
      },
      "area": "web-data",
      "unitPrices": [
        {
          "item": "Starter plan",
          "unit": "month",
          "usd": 49,
          "note": "2,000 credits. $34 a month billed yearly"
        },
        {
          "item": "Growth plan",
          "unit": "month",
          "usd": 149,
          "note": "10,000 credits. $104 a month billed yearly"
        },
        {
          "item": "Scale plan",
          "unit": "month",
          "usd": 299,
          "note": "25,000 credits. $209 a month billed yearly"
        },
        {
          "item": "Email found or verified",
          "unit": "credit",
          "usd": 0.0245,
          "note": "Starter monthly, $49 for 2,000 credits. One email found is 1 credit, one verification 0.5"
        }
      ],
      "provenance": {
        "legalEntity": "Hunter Web Services, Inc.",
        "domain": "hunter.io",
        "domainRegistered": "2012-08-24",
        "endpointOnVendorDomain": true,
        "terms": "https://hunter.io/terms-of-service",
        "privacy": "https://hunter.io/privacy-policy",
        "statusPage": "https://status.hunter.io",
        "changelog": "https://hunter.io/changelog",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "hunter.io served the pricing page in euros from our location. USD figures match the same numbers and third-party reports"
        ],
        "score": 84
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/hunter.json",
      "live": {
        "slug": "hunter",
        "probe": {
          "target": "https://api.hunter.io/v2",
          "method": "get",
          "lastAt": "2026-10-08T19:08:49.484354295Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 163,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 106,
          "p95ms24h": 180,
          "samples24h": 272,
          "samples30d": 2135,
          "days": [
            {
              "date": "2026-09-30",
              "probes": 35,
              "ok": 35
            },
            {
              "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",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-05",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-06",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-07",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-08",
              "probes": 217,
              "ok": 217
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.hunter.io",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-08T17:50:46.329676507Z"
        },
        "securityTxt": {
          "url": "https://hunter.io/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-08T15:39:08.451696981Z"
        },
        "llmsTxt": {
          "url": "https://hunter.io/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-08T14:00:31.703292033Z"
        },
        "domain": {
          "domain": "hunter.io",
          "checkedAt": "2026-10-04T13:05:34.738925095Z"
        },
        "pages": [
          {
            "url": "https://hunter.io/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:54.682281696Z",
            "changedAt": "2026-10-08T18:20:54.682281696Z",
            "fingerprint": "646788a7e0c7"
          },
          {
            "url": "https://hunter.io/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:56.84730454Z",
            "changedAt": "2026-10-08T18:20:56.84730454Z",
            "fingerprint": "3d32f5685e97"
          },
          {
            "url": "https://hunter.io/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:20:58.809513027Z",
            "changedAt": "2026-10-08T18:20:58.809513027Z",
            "fingerprint": "c2ea1ffda353"
          },
          {
            "url": "https://hunter.io/terms-of-service",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:21:00.870589486Z",
            "changedAt": "2026-10-08T18:21:00.870589486Z",
            "fingerprint": "8093d765728f"
          }
        ],
        "updatedAt": "2026-10-08T19:08:49.484354295Z"
      }
    },
    "facts": [
      {
        "a": "MCP server",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "FuseAI, LLC",
        "b": "Hunter",
        "name": "Vendor"
      },
      {
        "a": "https://mcp.fuseai.com",
        "b": "https://api.hunter.io/v2",
        "name": "Hosted endpoint"
      },
      {
        "a": "Streamable HTTP",
        "b": "HTTP, Streamable HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth",
        "b": "OAuth or key",
        "name": "Auth"
      },
      {
        "a": "Freemium",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "Proprietary hosted service under FuseAI's terms of service. No public source repository found",
        "b": "none",
        "name": "Licence"
      },
      {
        "a": "290",
        "b": "107",
        "name": "Tools exposed"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-07",
        "b": "none",
        "name": "Last release"
      },
      {
        "a": "2026-07-01",
        "b": "no date given",
        "name": "Terms last updated"
      },
      {
        "a": "2026-07-01",
        "b": "no date given",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "yes",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "none",
        "b": "9 stars",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "3/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Hunter API + MCP scores 56.5 (C) on agent readiness against Fuse MCP's 47.9 (D), and leads in 5 of 7 scored categories. Fuse MCP leads on security \u0026 auth.",
        "question": "Which is better for AI agents, Fuse MCP or Hunter API + MCP?"
      },
      {
        "answer": "Fuse MCP uses an OAuth sign-in. Hunter API + MCP takes an API key or an OAuth sign-in.",
        "question": "Do Fuse MCP and Hunter API + MCP need an API key?"
      },
      {
        "answer": "Yes. Fuse MCP has a hosted endpoint at https://mcp.fuseai.com and Hunter API + MCP at https://api.hunter.io/v2.",
        "question": "Can an agent call Fuse MCP and Hunter API + MCP without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Security \u0026 auth, 45 against 33"
        ],
        "also": null,
        "goodFor": "Suited to a salesperson or founder who wants an assistant to build prospect lists, enrich them and run email and LinkedIn outreach inside one Fuse account.",
        "slug": "fuse-mcp",
        "watchFor": "The only OAuth scope is `mcp:tools`, so a connection can do everything its user can, including sending email and LinkedIn messages"
      },
      {
        "aheadOn": [
          "Reliability, 50 against 40",
          "Schema \u0026 documentation, 90 against 72",
          "Payments \u0026 pricing, 40 against 30",
          "Maintenance \u0026 community, 63 against 35",
          "Transparency \u0026 trust, 78 against 49"
        ],
        "also": [
          "Free to start without a card"
        ],
        "goodFor": "Finding and verifying work emails from a domain or a name, where GDPR handling of the people looked up matters.",
        "slug": "hunter",
        "watchFor": "Hosted MCP has about 100 tools, including bulk deletes and API key creation, with no read-only mode"
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        "edge": "hunter",
        "fuse-mcp": 40,
        "hunter": 50,
        "key": "reliability",
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 18,
        "edge": "hunter",
        "fuse-mcp": 72,
        "hunter": 90,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "by": 3,
        "edge": "fuse-mcp",
        "fuse-mcp": 57,
        "hunter": 54,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "by": 12,
        "edge": "fuse-mcp",
        "fuse-mcp": 45,
        "hunter": 33,
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "by": 10,
        "edge": "hunter",
        "fuse-mcp": 30,
        "hunter": 40,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 28,
        "edge": "hunter",
        "fuse-mcp": 35,
        "hunter": 63,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "by": 29,
        "edge": "hunter",
        "fuse-mcp": 49,
        "hunter": 78,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Hunter API + MCP scores 56.5 (C) on agent readiness against Fuse MCP's 47.9 (D), and leads in 5 of 7 scored categories. Fuse MCP leads on security \u0026 auth. Both do lead search.",
    "verdicts": {
      "fuse-mcp": "The server documents 290 tools with read-only and destructive annotations, OAuth with PKCE and dynamic client registration, and published limits of 60 requests a minute. The single `mcp:tools` scope grants everything the user can do, sends happen at once with no undo, and no status page, changelog or security contact was found.",
      "hunter": "Returns 451 for people who asked not to be processed. Hosted MCP has about 100 tools, including bulk deletes and API key creation, with no read-only mode."
    }
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  "markdown": "Hunter API + MCP scores 56.5 (C) on agent readiness against Fuse MCP's 47.9 (D), and leads in 5 of 7 scored categories. Fuse MCP leads on security \u0026 auth. Both do lead search.\n\n- Fuse MCP: grade D, 47.9/100, rank #543 of 629. Markdown https://www.anchorterminal.com/tools/fuse-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/fuse-mcp.json\n- Hunter API + MCP: grade C, 56.5/100, rank #435 of 629. Markdown https://www.anchorterminal.com/tools/hunter.md · JSON https://www.anchorterminal.com/api/v1/tools/hunter.json\n\n## Which one, for what\n\n### Fuse MCP (D)\n\nGood for: Suited to a salesperson or founder who wants an assistant to build prospect lists, enrich them and run email and LinkedIn outreach inside one Fuse account.\n\nAhead on:\n- Security \u0026 auth, 45 against 33\n\nWatch for: The only OAuth scope is `mcp:tools`, so a connection can do everything its user can, including sending email and LinkedIn messages\n\n### Hunter API + MCP (C)\n\nGood for: Finding and verifying work emails from a domain or a name, where GDPR handling of the people looked up matters.\n\nAhead on:\n- Reliability, 50 against 40\n- Schema \u0026 documentation, 90 against 72\n- Payments \u0026 pricing, 40 against 30\n- Maintenance \u0026 community, 63 against 35\n- Transparency \u0026 trust, 78 against 49\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: Hosted MCP has about 100 tools, including bulk deletes and API key creation, with no read-only mode\n\n\n## Score by category\n\n| Category | Weight | Fuse MCP | Hunter API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 40 | 50 | Hunter API + MCP +10 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 72 | 90 | Hunter API + MCP +18 |\n| Agent ergonomics | 13% (16.2 this run) | 57 | 54 | Fuse MCP +3 |\n| Security \u0026 auth | 14% (17.5 this run) | 45 | 33 | Fuse MCP +12 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 40 | Hunter API + MCP +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 35 | 63 | Hunter API + MCP +28 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 49 | 78 | Hunter API + MCP +29 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **47.9 · D** | **56.5 · C** | |\n\n## Facts side by side\n\n| Fact | Fuse MCP | Hunter API + MCP |\n| --- | --- | --- |\n| Kind | MCP server | HTTP API |\n| Vendor | FuseAI, LLC | Hunter |\n| Hosted endpoint | `https://mcp.fuseai.com` | `https://api.hunter.io/v2` |\n| Transports | Streamable HTTP | HTTP, Streamable HTTP |\n| Auth | OAuth | OAuth or key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | Proprietary hosted service under FuseAI's terms of service. No public source repository found | none |\n| Tools exposed | 290 | 107 |\n| Read-only variant documented | yes | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-07 | none |\n| Terms last updated | 2026-07-01 | no date given |\n| Privacy policy last updated | 2026-07-01 | no date given |\n| Customer content may train models | not found in the text | not found in the text |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | not found in the text | yes |\n| Terms or service can change without notice | not found in the text | yes |\n| Arbitration or class-action waiver | yes | not found in the text |\n| Popularity | none | 9 stars |\n| Agent reviews | none | 3/5 (2) |\n\n## Verdicts\n\n**Fuse MCP.** The server documents 290 tools with read-only and destructive annotations, OAuth with PKCE and dynamic client registration, and published limits of 60 requests a minute. The single `mcp:tools` scope grants everything the user can do, sends happen at once with no undo, and no status page, changelog or security contact was found.\n\n**Hunter API + MCP.** Returns 451 for people who asked not to be processed. Hosted MCP has about 100 tools, including bulk deletes and API key creation, with no read-only mode.\n\n## Before you call either\n\n### Fuse MCP\n\n1. Keep the client's approval prompt on for every tool that is not read-only. Sends, CRM pushes and Slack posts run at once with no undo\n2. Launch a campaign only on an explicit request. Creating one makes a draft, and `update_campaign_status_tool` starts real outreach\n3. Call `get_credits_balance` and `get_credit_prices` first. Every call needs at least 100 credits, and searches cost 2 credits a result\n4. Resolve filter values with `lookup_filter_values` or `get_company_search_enums` before `search_people` or `search_companies`\n5. Start long work with `deep_research_start`, then poll `deep_research_status`. A tool call has 60 seconds, and runs take 5 to 20 minutes\n\n### Hunter API + MCP\n\n1. Treat 451 as final. The person opted out and retrying won't help\n2. Back off on 403 with a rate-limit message. 429 means the plan's credits are gone\n3. Send the key in `X-API-Key`, never as `?api_key=`\n4. Use `test-api-key` to check request shapes without spending credits\n5. Use the hosted MCP at mcp.hunter.io/mcp, not the deprecated local npm package\n\n## Questions\n\n### Which is better for AI agents, Fuse MCP or Hunter API + MCP?\n\nHunter API + MCP scores 56.5 (C) on agent readiness against Fuse MCP's 47.9 (D), and leads in 5 of 7 scored categories. Fuse MCP leads on security \u0026 auth.\n\n### Do Fuse MCP and Hunter API + MCP need an API key?\n\nFuse MCP uses an OAuth sign-in. Hunter API + MCP takes an API key or an OAuth sign-in.\n\n### Can an agent call Fuse MCP and Hunter API + MCP without installing anything?\n\nYes. Fuse MCP has a hosted endpoint at https://mcp.fuseai.com and Hunter API + MCP at https://api.hunter.io/v2.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/fuse-mcp-vs-hunter.json, and with the fewest tokens: https://www.anchorterminal.com/compare/fuse-mcp-vs-hunter.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"fuse-mcp\", \"b\": \"hunter\"}`. From a terminal: `anchor compare fuse-mcp hunter`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/fuse-mcp.json and https://www.anchorterminal.com/api/v1/tools/hunter.json\n\n## Other comparisons with Fuse MCP or Hunter API + MCP\n\n- [Apollo API + MCP vs Fuse MCP](https://www.anchorterminal.com/compare/apollo-vs-fuse-mcp.md)\n- [Apollo API + MCP vs Hunter API + MCP](https://www.anchorterminal.com/compare/apollo-vs-hunter.md)\n- [Coresignal API + MCP vs Fuse MCP](https://www.anchorterminal.com/compare/coresignal-vs-fuse-mcp.md)\n- [Coresignal API + MCP vs Hunter API + MCP](https://www.anchorterminal.com/compare/coresignal-vs-hunter.md)\n- [Crustdata API + MCP vs Fuse MCP](https://www.anchorterminal.com/compare/crustdata-vs-fuse-mcp.md)\n- [Crustdata API + MCP vs Hunter API + MCP](https://www.anchorterminal.com/compare/crustdata-vs-hunter.md)\n- [Enrich Layer API + MCP vs Fuse MCP](https://www.anchorterminal.com/compare/enrich-layer-vs-fuse-mcp.md)\n- [Enrich Layer API + MCP vs Hunter API + MCP](https://www.anchorterminal.com/compare/enrich-layer-vs-hunter.md)\n- [FullEnrich API + MCP vs Fuse MCP](https://www.anchorterminal.com/compare/fullenrich-vs-fuse-mcp.md)\n- [FullEnrich API + MCP vs Hunter API + MCP](https://www.anchorterminal.com/compare/fullenrich-vs-hunter.md)\n- [Fuse MCP vs Gojiberry](https://www.anchorterminal.com/compare/fuse-mcp-vs-gojiberry.md)\n- [Fuse MCP vs LeadMagic API + MCP](https://www.anchorterminal.com/compare/fuse-mcp-vs-leadmagic.md)\n- [Fuse MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/fuse-mcp-vs-lusha.md)\n- [Fuse MCP vs Prospeo API + MCP](https://www.anchorterminal.com/compare/fuse-mcp-vs-prospeo.md)\n- [Gojiberry vs Hunter API + MCP](https://www.anchorterminal.com/compare/gojiberry-vs-hunter.md)\n- [Dropcontact API + MCP vs Fuse MCP](https://www.anchorterminal.com/compare/dropcontact-vs-fuse-mcp.md)\n- [Dropcontact API + MCP vs Hunter API + MCP](https://www.anchorterminal.com/compare/dropcontact-vs-hunter.md)\n- [Hunter API + MCP vs LeadMagic API + MCP](https://www.anchorterminal.com/compare/hunter-vs-leadmagic.md)\n- [Hunter API + MCP vs Lusha API + MCP](https://www.anchorterminal.com/compare/hunter-vs-lusha.md)\n- [Hunter API + MCP vs Prospeo API + MCP](https://www.anchorterminal.com/compare/hunter-vs-prospeo.md)\n",
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    "description": "Hunter API + MCP scores 56.5 (C) on agent readiness against Fuse MCP's 47.9 (D), and leads in 5 of 7 scored categories. Fuse MCP leads on security \u0026 auth. Both do lead search. Category scores, facts, verdicts and agent notes side by side.",
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    "title": "Fuse MCP vs Hunter API + MCP for AI agents, D 47.9 vs C 56.5",
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