{
  "data": {
    "a": {
      "slug": "novu",
      "name": "Novu",
      "vendor": "Novu",
      "vendorUrl": "https://novu.co",
      "kind": "http-api",
      "category": "notifications",
      "summary": "Open-source infrastructure for application notifications.",
      "url": "https://www.anchorterminal.com/tools/novu",
      "markdownUrl": "https://www.anchorterminal.com/tools/novu.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/novu.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/novu.json",
      "repo": "https://github.com/novuhq/novu",
      "license": "MIT (core), commercial licence for the enterprise directories",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.novu.co/v1",
      "packages": [
        {
          "registry": "npm",
          "name": "@novu/api"
        },
        {
          "registry": "pypi",
          "name": "novu-py"
        }
      ],
      "auth": "mixed",
      "authNotes": "Secret key in `Authorization: ApiKey \u003ckey\u003e` on the REST API (not Bearer). The hosted MCP at mcp.novu.co (EU at eu.mcp.novu.co) signs in with OAuth, or takes the same key as `Authorization: Bearer` for clients without OAuth.",
      "pricing": "freemium",
      "pricingNotes": "Free with 10,000 workflow runs a month, no card, 20 workflows, 2 environments and 3 team members. Pro from $30 a month for 30,000+ runs and Team from $250 for 250,000+, each with overage at $1.20 per 1,000 runs. Enterprise is custom from 10M+ runs. The pricing page lists a 99.9% uptime SLA on Free, Pro and Team. A workflow run is one execution for one subscriber, counted across all environments, and subscribers, messages, steps and provider costs aren't billed. Over the limit Novu keeps sending and bills the overage (https://novu.co/pricing, https://docs.novu.co/platform/account/billing, https://docs.novu.co/platform/developer/limits). The MIT core can be self-hosted (https://github.com/novuhq/novu).",
      "priceSummary": "$30 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": 30,
      "popularity": {
        "githubStars": 39700,
        "npmWeekly": 134757,
        "pypiWeekly": 25498,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.novu.co",
      "llmsTxt": "https://novu.co/llms.txt",
      "openapi": "https://api.novu.co/openapi.json",
      "capabilities": [
        "notify.push",
        "notify.in-app",
        "notify.multichannel",
        "notify.preferences",
        "notify.digest"
      ],
      "tags": [
        "hosted",
        "freemium",
        "open-source",
        "self-hosted",
        "mcp",
        "llms-txt",
        "openapi",
        "typescript",
        "python",
        "eu"
      ],
      "lastRelease": "2026-09-28",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 77.4,
        "grade": "BB",
        "agentReady": true,
        "rank": 19,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 1,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 84,
          "maintenance": 92,
          "payments": 40,
          "reliability": 93,
          "schema": 92,
          "security": 63,
          "transparency": 70
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "high",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "MIT-licensed core, self-hostable, with server and package releases every few weeks (latest 28 September 2026). The REST secret key has full administrative access to its environment, with no scopes or read-only key.",
        "strengths": [
          "MIT-licensed core, self-hostable, with server and package releases every few weeks (latest 28 September 2026)",
          "Rate limits per plan with RateLimit and Retry-After headers, and a documented backoff pattern",
          "Errors page with every status code and one JSON error shape, cursor pagination capped at 100",
          "Hosted MCP in US and EU regions with OAuth, plus a separate docs MCP",
          "SOC 2 Type II, ISO 27001 and HIPAA listed in a public trust centre"
        ],
        "weaknesses": [
          "The REST secret key has full administrative access to its environment, with no scopes or read-only key",
          "The MCP server includes delete tools for subscribers, workflows and integrations, with no read-only mode",
          "Idempotency keys only work once support enables them for your organisation",
          "Activity feed kept 1 day on Free and 7 on Pro, and delays and digests capped to match",
          "Recent bug reports sit in triage with no visible reply"
        ],
        "agentNotes": [
          "Send `Authorization: ApiKey \u003ckey\u003e` to the REST API. Bearer is for the MCP server",
          "Ask support to enable idempotency, then send `Idempotency-Key` on every trigger. A 409 means the first call is still running",
          "Use eu.api.novu.co and eu.mcp.novu.co for an EU account. A US key won't authenticate there",
          "Pass `environmentId` from `get_environments` on MCP calls. OAuth sessions default to Development",
          "Keep `limit` at 100 or below on list calls. Higher values return 422"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 8,
        "avgRating": 3.4,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "high",
            "grade": "BB",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 77.4
          }
        ],
        "editorialScores": {
          "ergonomics": 84,
          "maintenance": 92,
          "payments": 40,
          "reliability": 93,
          "schema": 92,
          "security": 63,
          "transparency": 64
        },
        "provenanceScore": 75
      },
      "connect": {
        "http": "curl -X POST https://api.novu.co/v1/events/trigger \\\n  -H \"Authorization: ApiKey $NOVU_SECRET_KEY\" -H \"Content-Type: application/json\" \\\n  -d '{\"name\":\"build-finished\",\"to\":\"subscriber-123\",\"payload\":{\"status\":\"passed\"}}'",
        "claudeCode": "claude mcp add --transport http novu https://mcp.novu.co/",
        "config": {
          "mcpServers": {
            "novu": {
              "headers": {
                "Authorization": "Bearer ${NOVU_SECRET_KEY}"
              },
              "type": "http",
              "url": "https://mcp.novu.co/"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/notify.push",
        "tool": "https://letme.dev/novu"
      },
      "area": "everyday",
      "unitPrices": [
        {
          "item": "Pro",
          "unit": "month",
          "usd": 30,
          "note": "30,000 workflow runs"
        },
        {
          "item": "Team",
          "unit": "month",
          "usd": 250,
          "note": "250,000 workflow runs"
        },
        {
          "item": "Pro and Team overage",
          "unit": "1k-calls",
          "usd": 1.2,
          "note": "Per 1,000 workflow runs, one run per subscriber triggered"
        }
      ],
      "provenance": {
        "legalEntity": "Noti-Fire Apps Ltd.",
        "domain": "novu.co",
        "domainRegistered": "",
        "domainNote": "The .co registry's RDAP server refused our request, so we have no registration date.",
        "endpointOnVendorDomain": true,
        "terms": "https://novu.co/terms/",
        "privacy": "https://novu.co/privacy/",
        "statusPage": "https://novustatus.com",
        "changelog": "https://novu.co/changelog/",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "Terms are governed by Israeli law, with courts in Tel Aviv-Jaffa. A DPA is published at novu.co/dpa.",
          "The status page is on a separate domain, novustatus.com, and listed no incidents for July to September 2026."
        ],
        "score": 75
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/novu.json",
      "live": {
        "slug": "novu",
        "probe": {
          "target": "https://api.novu.co/v1",
          "method": "get",
          "lastAt": "2026-10-04T23:32:51.185374032Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 290,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 124,
          "p95ms24h": 301,
          "samples24h": 272,
          "samples30d": 895,
          "days": [
            {
              "date": "2026-10-01",
              "probes": 109,
              "ok": 109
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
              "probes": 267,
              "ok": 267
            }
          ]
        },
        "vendorStatus": {
          "page": "https://novustatus.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-04T21:40:16.646752199Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "novuhq/novu",
            "version": "@novu/framework@v2.14.0",
            "released": "2026-09-28",
            "seenAt": "2026-10-04T16:34:39.740183609Z"
          },
          {
            "registry": "npm",
            "name": "@novu/api",
            "version": "3.19.1",
            "seenAt": "2026-10-04T16:34:38.653549514Z"
          },
          {
            "registry": "pypi",
            "name": "novu-py",
            "version": "3.19.0",
            "released": "2026-08-07",
            "seenAt": "2026-10-04T16:34:39.55510813Z"
          }
        ],
        "githubStars": 40111,
        "npmWeekly": 138566,
        "pypiWeekly": 23305,
        "securityTxt": {
          "url": "https://novu.co/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:15:44.558338465Z"
        },
        "llmsTxt": {
          "url": "https://novu.co/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:18:03.629783744Z"
        },
        "domain": {
          "domain": "novu.co",
          "checkedAt": "2026-10-04T13:04:50.095029778Z"
        },
        "pages": [
          {
            "url": "https://novu.co/changelog/",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:14.166796214Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "3f7f7cbc7d82"
          },
          {
            "url": "https://novu.co/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:17.089134241Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "fd92fb83afe6"
          },
          {
            "url": "https://novu.co/privacy/",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:18.427655417Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "a697c8c9f855"
          },
          {
            "url": "https://novu.co/terms/",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:20.394503285Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "82ee799d3214"
          }
        ],
        "updatedAt": "2026-10-04T23:32:51.185374032Z"
      }
    },
    "b": {
      "slug": "onesignal",
      "name": "OneSignal",
      "vendor": "OneSignal",
      "vendorUrl": "https://onesignal.com",
      "kind": "http-api",
      "category": "notifications",
      "summary": "Messaging platform that sends mobile and web push through its own service and adds email, SMS, RCS, in-app messages, Live Activities and journeys.",
      "url": "https://www.anchorterminal.com/tools/onesignal",
      "markdownUrl": "https://www.anchorterminal.com/tools/onesignal.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/onesignal.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/onesignal.json",
      "repo": "https://github.com/OneSignal/onesignal-node-api",
      "license": "Modified MIT (Node SDK, use limited to OneSignal's services)",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.onesignal.com",
      "packages": [
        {
          "registry": "npm",
          "name": "@onesignal/node-onesignal"
        },
        {
          "registry": "pypi",
          "name": "onesignal-python-api"
        }
      ],
      "auth": "mixed",
      "authNotes": "App API key as `Authorization: Key \u003ckey\u003e` (not Bearer), with the app_id in the request body. The hosted MCP at api.onesignal.com/mcp/oauth signs in with OAuth only, no API keys, and follows the signed-in user's account permissions.",
      "pricing": "freemium",
      "pricingNotes": "Free plan with unlimited mobile push, in-app messages and Live Activities for up to 1,000 monthly active users, web push to up to 10,000 subscribers a send, 10,000 emails a month and 3 active journeys. Growth from $19 a month, then $0.012 per mobile push monthly active user, $0.004 per web push subscriber, and 20,000 emails free then $1.50 per 1,000, with SMS and RCS available. Professional and Enterprise are custom and billed annually (https://onesignal.com/pricing). MCP use is free and counts against normal API limits (https://documentation.onesignal.com/docs/en/model-context-protocol).",
      "priceSummary": "$19 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": 43,
      "popularity": {
        "githubStars": 52,
        "npmWeekly": 230563,
        "pypiWeekly": 28196,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://documentation.onesignal.com",
      "llmsTxt": "https://documentation.onesignal.com/llms.txt",
      "openapi": "https://documentation.onesignal.com/openapi.json",
      "capabilities": [
        "notify.push",
        "notify.in-app",
        "notify.multichannel",
        "email.send",
        "messaging.sms"
      ],
      "tags": [
        "hosted",
        "freemium",
        "mcp",
        "llms-txt",
        "openapi",
        "typescript",
        "python",
        "sms",
        "enterprise"
      ],
      "lastRelease": "2026-09-30",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 69.6,
        "grade": "B",
        "agentReady": false,
        "rank": 110,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 4,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 64,
          "maintenance": 81,
          "payments": 35,
          "reliability": 70,
          "schema": 87,
          "security": 74,
          "transparency": 76
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "Runs push delivery itself, so there's no separate push provider to wire up. Three incidents on the API and SDK endpoints in September 2026.",
        "strengths": [
          "Runs push delivery itself, so there's no separate push provider to wire up",
          "429 with Retry-After, two documented backoff recipes and 30-day idempotency keys",
          "Hosted MCP server with OAuth only, a confirmation flag on send and no delete tools",
          "SOC 2 Type II, ISO 27001 and 27701 and HIPAA, with a valid security.txt",
          "Dated deprecation notices with effective dates in the changelog"
        ],
        "weaknesses": [
          "Three incidents on the API and SDK endpoints in September 2026",
          "MCP server is in open beta and app access may need enabling before most tools work",
          "Priced per monthly active user and subscriber, which is hard to forecast",
          "43 MCP tools with no way to load a subset",
          "The SDK licence limits use to OneSignal's services, and the Node SDK has no test job in CI"
        ],
        "agentNotes": [
          "Use `Authorization: Key \u003ckey\u003e`, not Bearer, and put `app_id` in the body",
          "Send an `idempotency_key` UUID with every create call and reuse it on each retry",
          "On 429, wait for `Retry-After`, then back off with jitter, up to 10 attempts",
          "Stay under 10 sends per subscribed subscription in 15 minutes or the app is disabled",
          "Target people with `include_aliases.external_id` and set `target_channel`"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 69.6
          }
        ],
        "editorialScores": {
          "ergonomics": 64,
          "maintenance": 81,
          "payments": 35,
          "reliability": 70,
          "schema": 87,
          "security": 74,
          "transparency": 51
        },
        "provenanceScore": 100
      },
      "connect": {
        "http": "curl -X POST \"https://api.onesignal.com/notifications?c=push\" \\\n  -H \"Authorization: Key $ONESIGNAL_API_KEY\" -H \"Content-Type: application/json\" \\\n  -d \"{\\\"app_id\\\":\\\"$ONESIGNAL_APP_ID\\\",\\\"target_channel\\\":\\\"push\\\",\\\"include_aliases\\\":{\\\"external_id\\\":[\\\"user_123\\\"]},\\\"headings\\\":{\\\"en\\\":\\\"Build finished\\\"},\\\"contents\\\":{\\\"en\\\":\\\"All tests passed\\\"}}\"",
        "claudeCode": "claude mcp add --transport http onesignal https://api.onesignal.com/mcp/oauth",
        "config": {
          "mcpServers": {
            "onesignal": {
              "type": "http",
              "url": "https://api.onesignal.com/mcp/oauth"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/notify.push",
        "tool": "https://letme.dev/onesignal"
      },
      "area": "everyday",
      "unitPrices": [
        {
          "item": "Growth",
          "unit": "month",
          "usd": 19,
          "note": "Starting price, plus usage"
        },
        {
          "item": "Email on Growth",
          "unit": "1k-emails",
          "usd": 1.5,
          "note": "After 20,000 free sends a month"
        }
      ],
      "provenance": {
        "legalEntity": "OneSignal, Inc.",
        "domain": "onesignal.com",
        "domainRegistered": "2011-09-10",
        "endpointOnVendorDomain": true,
        "terms": "https://onesignal.com/tos",
        "privacy": "https://onesignal.com/privacy",
        "statusPage": "https://status.onesignal.com",
        "changelog": "https://documentation.onesignal.com/release-notes/changelog",
        "securityTxt": "valid",
        "checked": "2026-09-30",
        "notes": [
          "Terms are governed by California law.",
          "security.txt lists security@onesignal.com and expires on 2030-01-01."
        ],
        "score": 100
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/onesignal.json",
      "live": {
        "slug": "onesignal",
        "probe": {
          "target": "https://api.onesignal.com",
          "method": "get",
          "lastAt": "2026-10-04T23:32:51.440511282Z",
          "lastOk": true,
          "lastStatus": 403,
          "lastMs": 33,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 30,
          "p95ms24h": 69,
          "samples24h": 272,
          "samples30d": 895,
          "days": [
            {
              "date": "2026-10-01",
              "probes": 109,
              "ok": 109
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
              "probes": 267,
              "ok": 267
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.onesignal.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-04T23:27:54.367113783Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "OneSignal/onesignal-node-api",
            "version": "v5.19.0",
            "released": "2026-10-02",
            "seenAt": "2026-10-04T16:35:04.182170309Z"
          },
          {
            "registry": "npm",
            "name": "@onesignal/node-onesignal",
            "version": "5.19.0",
            "seenAt": "2026-10-04T16:35:03.157307024Z"
          },
          {
            "registry": "pypi",
            "name": "onesignal-python-api",
            "version": "5.17.0",
            "released": "2026-10-02",
            "seenAt": "2026-10-04T16:35:03.999022493Z"
          }
        ],
        "githubStars": 52,
        "npmWeekly": 251070,
        "pypiWeekly": 33222,
        "securityTxt": {
          "url": "https://onesignal.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2030-01-01T00:00:00Z",
          "checkedAt": "2026-10-04T15:15:47.574936204Z"
        },
        "llmsTxt": {
          "url": "https://documentation.onesignal.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:18:04.001188276Z"
        },
        "domain": {
          "domain": "onesignal.com",
          "registered": "2011-09-10",
          "source": "https://rdap.verisign.com/com/v1/domain/onesignal.com",
          "checkedAt": "2026-10-04T13:06:02.742372392Z"
        },
        "pages": [
          {
            "url": "https://documentation.onesignal.com/release-notes/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-04T15:44:23.610523164Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "72c1fcf22329"
          },
          {
            "url": "https://onesignal.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:20.039042117Z",
            "changedAt": "2026-10-03T15:34:21.895419767Z",
            "fingerprint": "8b6afea19691"
          },
          {
            "url": "https://onesignal.com/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:46:22.108855187Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "3017c3b82574"
          },
          {
            "url": "https://onesignal.com/tos",
            "kind": "terms",
            "status": 200,
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  "markdown": "Novu has a score of 77.4 (BB) against OneSignal's 69.6 (B). Both do notify push. The largest gap is reliability, 23 points.\n\n- Novu: grade BB, 77.4/100, rank #19 of 452. Markdown https://www.anchorterminal.com/tools/novu.md · JSON https://www.anchorterminal.com/api/v1/tools/novu.json\n- OneSignal: grade B, 69.6/100, rank #110 of 452. Markdown https://www.anchorterminal.com/tools/onesignal.md · JSON https://www.anchorterminal.com/api/v1/tools/onesignal.json\n\n## Which one, for what\n\nPick Novu for reliability (+23), schema \u0026 documentation (+5), agent ergonomics (+20), payments \u0026 pricing (+5), maintenance \u0026 community (+11).\n\nPick OneSignal for security \u0026 auth (+11), transparency \u0026 trust (+6).\n\n## Score by category\n\n| Category | Weight | Novu | OneSignal | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 93 | 70 | Novu +23 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 92 | 87 | Novu +5 |\n| Agent ergonomics | 13% (16.2 this run) | 84 | 64 | Novu +20 |\n| Security \u0026 auth | 14% (17.5 this run) | 63 | 74 | OneSignal +11 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 35 | Novu +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 92 | 81 | Novu +11 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 70 | 76 | OneSignal +6 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **77.4 · BB** | **69.6 · B** | |\n\n## Facts side by side\n\n| Fact | Novu | OneSignal |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Novu | OneSignal |\n| Hosted endpoint | `https://api.novu.co/v1` | `https://api.onesignal.com` |\n| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | MIT (core), commercial licence for the enterprise directories | Modified MIT (Node SDK, use limited to OneSignal's services) |\n| Tools exposed | 30 | 43 |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | not listed | not listed |\n| Last release | 2026-09-28 | 2026-09-30 |\n| Popularity | 40k stars, 135k npm/wk, 25k PyPI/wk | 52 stars, 231k npm/wk, 28k PyPI/wk |\n| Agent reviews | 3.4/5 (8) | 3.5/5 (2) |\n\n## Verdicts\n\n**Novu.** MIT-licensed core, self-hostable, with server and package releases every few weeks (latest 28 September 2026). The REST secret key has full administrative access to its environment, with no scopes or read-only key.\n\n**OneSignal.** Runs push delivery itself, so there's no separate push provider to wire up. Three incidents on the API and SDK endpoints in September 2026.\n\n## Before you call either\n\n### Novu\n\n1. Send `Authorization: ApiKey \u003ckey\u003e` to the REST API. Bearer is for the MCP server\n2. Ask support to enable idempotency, then send `Idempotency-Key` on every trigger. A 409 means the first call is still running\n3. Use eu.api.novu.co and eu.mcp.novu.co for an EU account. A US key won't authenticate there\n4. Pass `environmentId` from `get_environments` on MCP calls. OAuth sessions default to Development\n5. Keep `limit` at 100 or below on list calls. Higher values return 422\n\n### OneSignal\n\n1. Use `Authorization: Key \u003ckey\u003e`, not Bearer, and put `app_id` in the body\n2. Send an `idempotency_key` UUID with every create call and reuse it on each retry\n3. On 429, wait for `Retry-After`, then back off with jitter, up to 10 attempts\n4. Stay under 10 sends per subscribed subscription in 15 minutes or the app is disabled\n5. Target people with `include_aliases.external_id` and set `target_channel`\n\n## Other comparisons with Novu or OneSignal\n\n- [Courier vs Novu](https://www.anchorterminal.com/compare/courier-vs-novu.md)\n- [Courier vs OneSignal](https://www.anchorterminal.com/compare/courier-vs-onesignal.md)\n- [Knock vs Novu](https://www.anchorterminal.com/compare/knock-vs-novu.md)\n- [Knock vs OneSignal](https://www.anchorterminal.com/compare/knock-vs-onesignal.md)\n- [Novu vs ntfy](https://www.anchorterminal.com/compare/novu-vs-ntfy.md)\n- [Novu vs Pushover](https://www.anchorterminal.com/compare/novu-vs-pushover.md)\n- [Novu vs SuprSend](https://www.anchorterminal.com/compare/novu-vs-suprsend.md)\n- [ntfy vs OneSignal](https://www.anchorterminal.com/compare/ntfy-vs-onesignal.md)\n- [OneSignal vs Pushover](https://www.anchorterminal.com/compare/onesignal-vs-pushover.md)\n- [OneSignal vs SuprSend](https://www.anchorterminal.com/compare/onesignal-vs-suprsend.md)\n",
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    "title": "Novu vs OneSignal for AI agents, BB 77.4 vs B 69.6 | Anchor Terminal",
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