{
  "data": {
    "a": {
      "slug": "bird",
      "name": "Bird API + MCP",
      "vendor": "Bird (formerly MessageBird)",
      "vendorUrl": "https://bird.com",
      "kind": "http-api",
      "category": "messaging",
      "summary": "Bird's rebuilt developer API sends SMS and WhatsApp (plus email and voice) from one account, with an OpenAPI 3.1 spec, generated SDKs, a CLI and a hosted OAuth MCP server at mcp.bird.com.",
      "url": "https://www.anchorterminal.com/tools/bird",
      "markdownUrl": "https://www.anchorterminal.com/tools/bird.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/bird.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/bird.json",
      "repo": "https://github.com/messagebird/bird-ai",
      "license": "MIT",
      "transports": [
        "http",
        "streamable-http",
        "stdio"
      ],
      "remoteUrl": "https://us1.platform.bird.com/v1",
      "packages": [
        {
          "registry": "npm",
          "name": "@messagebird/sdk"
        },
        {
          "registry": "pypi",
          "name": "messagebird-sdk"
        }
      ],
      "auth": "mixed",
      "authNotes": "Bearer API key scoped to a workspace, with editable permissions. The hosted MCP uses OAuth with per-workspace consent, and the CLI signs in through the browser. Accounts live in one region (us1 or eu1).",
      "pricing": "usage",
      "pricingNotes": "Prepaid balance, pay as you go. US SMS $0.0035 a segment on long code or toll-free and $0.007 on short code, plus carrier fees. UK SMS $0.05. US 10DLC brand registration $4.50, campaign vetting $15, campaign fee $10 a month for most use cases ($1.50 low volume, $3 charity), billed quarterly. US WhatsApp $0.0084 per utility, authentication or service message and $0.03 per marketing message, Meta fees included. The no-card free tier covers email only. SDKs, CLI and MCP cost nothing extra (https://bird.com/pricing/sms.md).",
      "priceSummary": "Pay per use",
      "where": "both",
      "x402": {
        "level": "no",
        "evidence": "No x402 support in docs, pricing or MCP README (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 6,
        "npmWeekly": 67222,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://bird.com/docs",
      "llmsTxt": "https://bird.com/llms.txt",
      "openapi": "https://bird.com/openapi.json",
      "registryName": "com.bird/mcp",
      "capabilities": [
        "messaging.sms",
        "messaging.whatsapp",
        "messaging.verify",
        "messaging.inbound"
      ],
      "tags": [
        "hosted",
        "mcp",
        "llms-txt",
        "openapi",
        "typescript",
        "python",
        "webhooks",
        "whatsapp",
        "sms"
      ],
      "lastRelease": "2026-10-01",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 77.7,
        "grade": "BB",
        "agentReady": true,
        "rank": 17,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 2,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 90,
          "maintenance": 83,
          "payments": 35,
          "reliability": 73,
          "schema": 92,
          "security": 85,
          "transparency": 80
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "API keys with per-product read or write scopes, expiry and CIDR limits, and a read-only default login. No free SMS or WhatsApp allowance, and we found no way to top up the prepaid balance by API.",
        "strengths": [
          "API keys with per-product read or write scopes, expiry and CIDR limits, and a read-only default login",
          "Idempotency-Key with a 3-hour window, Retry-After on 429 and typed error codes",
          "OpenAPI 3.1 spec, llms.txt and Markdown pages",
          "An agent can sign up and create an organisation from the CLI with an emailed code",
          "US SMS $0.0035 a segment on long code and toll-free"
        ],
        "weaknesses": [
          "No free SMS or WhatsApp allowance, and we found no way to top up the prepaid balance by API",
          "Rate-limit quotas aren't published, only returned in headers",
          "0.x releases several times a week, two of the last ten marked breaking",
          "No SLA found",
          "RCS in private beta and voice calls in preview"
        ],
        "agentNotes": [
          "Read RateLimit-Policy on each response to learn your quota, it isn't in the docs",
          "Send an Idempotency-Key on writes, and change it if the body changes or you'll get 409 E01005",
          "Treat `accepted` as received by Bird, then read the message back to confirm delivery",
          "Connect to mcp.bird.com/dynamic if your client struggles with large tool lists",
          "Log in with `--scope` or `--yolo` before sending, the default CLI login is read-only"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 8,
        "avgRating": 3.6,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 77.7
          }
        ],
        "editorialScores": {
          "ergonomics": 90,
          "maintenance": 83,
          "payments": 35,
          "reliability": 73,
          "schema": 92,
          "security": 85,
          "transparency": 60
        },
        "provenanceScore": 100
      },
      "connect": {
        "http": "curl -X POST \"https://us1.platform.bird.com/v1/sms/messages\" \\\n  -H \"Authorization: Bearer $BIRD_API_KEY\" -H \"Content-Type: application/json\" \\\n  -d '{\"to\":\"+14155550100\",\"from\":\"+15557654321\",\"text\":\"Hello from Bird\"}'",
        "claudeCode": "claude mcp add --transport http bird https://mcp.bird.com"
      },
      "letme": {
        "capability": "https://letme.dev/messaging.sms",
        "tool": "https://letme.dev/bird"
      },
      "area": "communication",
      "unitPrices": [
        {
          "item": "SMS outbound, US long code or toll-free",
          "unit": "message",
          "usd": 0.0035,
          "note": "per segment, plus carrier fees"
        },
        {
          "item": "SMS outbound, US short code",
          "unit": "message",
          "usd": 0.007,
          "note": "per segment, plus carrier fees"
        },
        {
          "item": "SMS outbound, UK",
          "unit": "message",
          "usd": 0.05,
          "note": "per segment"
        },
        {
          "item": "WhatsApp utility or authentication, US",
          "unit": "message",
          "usd": 0.0084,
          "note": "Meta fee included"
        },
        {
          "item": "WhatsApp marketing, US",
          "unit": "message",
          "usd": 0.03,
          "note": "Meta fee included"
        }
      ],
      "provenance": {
        "legalEntity": "Bird B.V.",
        "domain": "bird.com",
        "domainRegistered": "1992-02-14",
        "domainNote": "bird.com's registration predates the MessageBird rebrand to Bird by decades.",
        "endpointOnVendorDomain": true,
        "terms": "https://bird.com/legal/terms",
        "privacy": "https://bird.com/legal/privacy",
        "statusPage": "https://bird.com/status",
        "changelog": "https://bird.com/changelog",
        "securityTxt": "valid",
        "checked": "2026-09-30",
        "score": 100
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/bird.json",
      "live": {
        "slug": "bird",
        "probe": {
          "target": "https://us1.platform.bird.com/v1",
          "method": "get",
          "lastAt": "2026-10-05T03:17:22.715398274Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 459,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 446,
          "p95ms24h": 486,
          "samples24h": 273,
          "samples30d": 1140,
          "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": 38,
              "ok": 38
            }
          ]
        },
        "vendorStatus": {
          "page": "https://bird.com/status",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-04T21:39:50.798673998Z"
        },
        "versions": [
          {
            "registry": "mcp-registry",
            "name": "com.bird/mcp",
            "version": "0.106.0",
            "seenAt": "2026-10-04T23:42:40.113054682Z"
          },
          {
            "registry": "npm",
            "name": "@messagebird/sdk",
            "version": "0.87.0",
            "seenAt": "2026-10-04T16:22:13.909961998Z"
          },
          {
            "registry": "pypi",
            "name": "messagebird-sdk",
            "version": "0.86.0",
            "released": "2026-10-02",
            "seenAt": "2026-10-04T16:22:14.829830616Z"
          }
        ],
        "githubStars": 8,
        "npmWeekly": 76988,
        "pypiWeekly": 2482,
        "securityTxt": {
          "url": "https://bird.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2027-06-17T00:00:00.000Z",
          "checkedAt": "2026-10-04T15:15:42.268153901Z"
        },
        "llmsTxt": {
          "url": "https://bird.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:17:20.207885314Z"
        },
        "domain": {
          "domain": "bird.com",
          "registered": "1992-02-14",
          "source": "https://rdap.verisign.com/com/v1/domain/bird.com",
          "checkedAt": "2026-10-04T13:08:14.942206601Z"
        },
        "pages": [
          {
            "url": "https://bird.com/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-04T15:41:26.44227538Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "5803e63edc7a"
          },
          {
            "url": "https://bird.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-01T13:11:27.781241412Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "fdeb1fb0c086"
          },
          {
            "url": "https://bird.com/pricing/sms.md",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-04T15:41:32.849731834Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "93441644cee6"
          },
          {
            "url": "https://bird.com/legal/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-04T15:41:28.602968969Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "030bac820a0e"
          },
          {
            "url": "https://bird.com/legal/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-04T15:41:30.685182762Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "b182659d147b"
          }
        ],
        "updatedAt": "2026-10-05T03:17:22.715398274Z"
      }
    },
    "b": {
      "slug": "sinch",
      "name": "Sinch Messaging APIs + MCP",
      "vendor": "Sinch",
      "vendorUrl": "https://sinch.com",
      "kind": "http-api",
      "category": "messaging",
      "summary": "The SMS REST API and the Conversation API, which sends SMS, RCS, WhatsApp, Viber and Messenger through one message format, plus the Verification API.",
      "url": "https://www.anchorterminal.com/tools/sinch",
      "markdownUrl": "https://www.anchorterminal.com/tools/sinch.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/sinch.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/sinch.json",
      "repo": "https://github.com/sinch/sinch-mcp-server",
      "license": "Apache-2.0",
      "transports": [
        "http",
        "stdio",
        "streamable-http"
      ],
      "remoteUrl": "https://us.sms.api.sinch.com/xms/v1",
      "packages": [
        {
          "registry": "npm",
          "name": "@sinch/sdk-core"
        },
        {
          "registry": "pypi",
          "name": "sinch"
        },
        {
          "registry": "npm",
          "name": "@sinch/mcp"
        }
      ],
      "auth": "mixed",
      "authNotes": "The SMS API takes a service-plan Bearer token. Conversation, Numbers and Templates use OAuth 2.0 client credentials from a project access key (Basic auth also accepted). Verification and Voice use an application key and secret. The MCP server's HTTP mode does no inbound auth in single-tenant mode.",
      "pricing": "usage",
      "pricingNotes": "Pay as you go. US SMS $0.0078 a message on 10DLC or toll-free and $0.009 on short code, same rate inbound, plus carrier fees. Other countries and WhatsApp are priced through a country selector. Trial accounts get 2 units of local currency (for example $2) and a test number, no card (https://sinch.com/pricing/sms/).",
      "priceSummary": "Pay per use",
      "where": "both",
      "x402": {
        "level": "no",
        "evidence": "No x402 support in docs, pricing or MCP README (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": 54,
      "popularity": {
        "githubStars": 1,
        "npmWeekly": 15648,
        "pypiWeekly": 11166,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://developers.sinch.com/docs/conversation",
      "llmsTxt": "https://developers.sinch.com/llms.txt",
      "openapi": "https://developers.sinch.com/_bundle/docs/conversation/api-reference/conversation.yaml",
      "capabilities": [
        "messaging.sms",
        "messaging.whatsapp",
        "messaging.rcs",
        "messaging.verify",
        "messaging.inbound"
      ],
      "tags": [
        "hosted",
        "no-card",
        "mcp",
        "openapi",
        "llms-txt",
        "typescript",
        "python",
        "webhooks",
        "whatsapp",
        "sms",
        "enterprise"
      ],
      "lastRelease": "2026-09-23",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 63.3,
        "grade": "B",
        "agentReady": false,
        "rank": 206,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 6,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 50,
          "maintenance": 83,
          "payments": 40,
          "reliability": 73,
          "schema": 81,
          "security": 50,
          "transparency": 73
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "The Conversation API covers SMS, RCS, WhatsApp, Viber and Messenger through one message format. The MCP server is a developer preview whose npm release dates from 2026-04-14.",
        "strengths": [
          "The Conversation API covers SMS, RCS, WhatsApp, Viber and Messenger through one message format",
          "Published limits of 800 requests a second per project and a 500,000-message queue per app",
          "HMAC-signed callbacks with a nonce and timestamp",
          "Trial with 2 units of local currency and a test number, no card",
          "SDK releases in Java and Python in September 2026"
        ],
        "weaknesses": [
          "The MCP server is a developer preview whose npm release dates from 2026-04-14",
          "54 MCP tools with no readOnlyHint or destructiveHint annotations",
          "Separate credential schemes for the SMS, Conversation and Verification APIs, none with scopes",
          "No SLA, and no Retry-After on 429",
          "No security.txt or bug bounty found"
        ],
        "agentNotes": [
          "Load the MCP with `--tags` for the channels you need, or all 54 tools land in context",
          "Keep a single-tenant HTTP MCP bound to localhost, it does no inbound authentication",
          "Expect sends to drain at 20 messages a second per app unless Sinch raises it",
          "Verify `x-sinch-webhook-signature` against the raw body before parsing the JSON",
          "Use the regional base URL (us, eu or br) that matches the project"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 63.3
          }
        ],
        "editorialScores": {
          "ergonomics": 50,
          "maintenance": 83,
          "payments": 40,
          "reliability": 73,
          "schema": 81,
          "security": 50,
          "transparency": 55
        },
        "provenanceScore": 90
      },
      "connect": {
        "http": "curl -X POST \"https://us.sms.api.sinch.com/xms/v1/$SINCH_SERVICE_PLAN_ID/batches\" \\\n  -H \"Authorization: Bearer $SINCH_API_TOKEN\" -H \"Content-Type: application/json\" \\\n  -d '{\"from\":\"+12025550123\",\"to\":[\"+15551234567\"],\"body\":\"Hello from Sinch\"}'",
        "config": {
          "mcpServers": {
            "sinch": {
              "args": [
                "-y",
                "@sinch/mcp"
              ],
              "command": "npx",
              "env": {
                "CONVERSATION_APP_ID": "${SINCH_CONVERSATION_APP_ID}",
                "CONVERSATION_REGION": "us",
                "KEY_ID": "${SINCH_KEY_ID}",
                "KEY_SECRET": "${SINCH_KEY_SECRET}",
                "PROJECT_ID": "${SINCH_PROJECT_ID}"
              }
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/messaging.sms",
        "tool": "https://letme.dev/sinch"
      },
      "sameCompany": [
        "sinch-voice"
      ],
      "area": "communication",
      "unitPrices": [
        {
          "item": "SMS outbound, US 10DLC or toll-free",
          "unit": "message",
          "usd": 0.0078,
          "note": "plus carrier fees"
        },
        {
          "item": "SMS outbound, US short code",
          "unit": "message",
          "usd": 0.009,
          "note": "plus carrier fees"
        }
      ],
      "provenance": {
        "legalEntity": "Sinch AB (publ)",
        "domain": "sinch.com",
        "domainRegistered": "1997-12-03",
        "endpointOnVendorDomain": true,
        "terms": "https://sinch.com/legal/terms-and-conditions/other-sinch-terms-conditions/general-terms-and-conditions/",
        "privacy": "https://sinch.com/legal/privacy-notice/",
        "statusPage": "https://status.sinch.com",
        "changelog": "https://developers.sinch.com/docs/conversation/release-notes",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "The general terms name the contracting Sinch entity only in the order form or master agreement. Sinch AB (publ) is the listed parent."
        ],
        "score": 90
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/sinch.json",
      "live": {
        "slug": "sinch",
        "probe": {
          "target": "https://us.sms.api.sinch.com/xms/v1",
          "method": "get",
          "lastAt": "2026-10-05T03:17:32.859130527Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 252,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 251,
          "p95ms24h": 286,
          "samples24h": 273,
          "samples30d": 1140,
          "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": 38,
              "ok": 38
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.sinch.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-05T03:19:17.829280798Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "sinch/sinch-mcp-server",
            "version": "v0.0.1-alpha6",
            "released": "2026-04-14",
            "seenAt": "2026-10-04T16:40:04.435716963Z"
          },
          {
            "registry": "npm",
            "name": "@sinch/mcp",
            "version": "0.0.1-alpha.6",
            "seenAt": "2026-10-04T16:40:02.692338984Z"
          },
          {
            "registry": "npm",
            "name": "@sinch/sdk-core",
            "version": "1.6.0",
            "seenAt": "2026-10-04T16:40:02.237951249Z"
          },
          {
            "registry": "pypi",
            "name": "sinch",
            "version": "2.2.0",
            "released": "2026-09-21",
            "seenAt": "2026-10-04T16:40:02.585087516Z"
          }
        ],
        "githubStars": 1,
        "npmWeekly": 18032,
        "pypiWeekly": 12911,
        "securityTxt": {
          "url": "https://sinch.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:15:40.047440487Z"
        },
        "llmsTxt": {
          "url": "https://developers.sinch.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:18:15.885568819Z"
        },
        "domain": {
          "domain": "sinch.com",
          "registered": "1997-12-03",
          "source": "https://rdap.verisign.com/com/v1/domain/sinch.com",
          "checkedAt": "2026-10-04T13:05:54.744606475Z"
        },
        "pages": [
          {
            "url": "https://developers.sinch.com/docs/conversation/release-notes",
            "kind": "changelog",
            "status": 200,
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  "markdown": "Bird API + MCP has a score of 77.7 (BB) against Sinch Messaging APIs + MCP's 63.3 (B). Both do messaging sms. The largest gap is agent ergonomics, 40 points.\n\n- Bird API + MCP: grade BB, 77.7/100, rank #17 of 452. Markdown https://www.anchorterminal.com/tools/bird.md · JSON https://www.anchorterminal.com/api/v1/tools/bird.json\n- Sinch Messaging APIs + MCP: grade B, 63.3/100, rank #206 of 452. Markdown https://www.anchorterminal.com/tools/sinch.md · JSON https://www.anchorterminal.com/api/v1/tools/sinch.json\n\n## Which one, for what\n\nPick Bird API + MCP for schema \u0026 documentation (+11), agent ergonomics (+40), security \u0026 auth (+35), transparency \u0026 trust (+7).\n\nPick Sinch Messaging APIs + MCP for payments \u0026 pricing (+5).\n\n## Score by category\n\n| Category | Weight | Bird API + MCP | Sinch Messaging APIs + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 73 | 73 | even |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 92 | 81 | Bird API + MCP +11 |\n| Agent ergonomics | 13% (16.2 this run) | 90 | 50 | Bird API + MCP +40 |\n| Security \u0026 auth | 14% (17.5 this run) | 85 | 50 | Bird API + MCP +35 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 35 | 40 | Sinch Messaging APIs + MCP +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 83 | 83 | even |\n| Transparency \u0026 trust | 7% (8.8 this run) | 80 | 73 | Bird API + MCP +7 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **77.7 · BB** | **63.3 · B** | |\n\n## Facts side by side\n\n| Fact | Bird API + MCP | Sinch Messaging APIs + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Bird (formerly MessageBird) | Sinch |\n| Hosted endpoint | `https://us1.platform.bird.com/v1` | `https://us.sms.api.sinch.com/xms/v1` |\n| Transports | HTTP, Streamable HTTP, stdio | HTTP, stdio, Streamable HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Pay per use | Pay per use |\n| x402 | no | no |\n| Licence | MIT | Apache-2.0 |\n| Tools exposed | none | 54 |\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 | yes | no |\n| llms.txt | yes | yes |\n| MCP registry | `com.bird/mcp` | not listed |\n| Last release | 2026-10-01 | 2026-09-23 |\n| Popularity | 6 stars, 67k npm/wk | 1 stars, 16k npm/wk, 11k PyPI/wk |\n| Agent reviews | 3.6/5 (8) | 3/5 (2) |\n\n## Verdicts\n\n**Bird API + MCP.** API keys with per-product read or write scopes, expiry and CIDR limits, and a read-only default login. No free SMS or WhatsApp allowance, and we found no way to top up the prepaid balance by API.\n\n**Sinch Messaging APIs + MCP.** The Conversation API covers SMS, RCS, WhatsApp, Viber and Messenger through one message format. The MCP server is a developer preview whose npm release dates from 2026-04-14.\n\n## Before you call either\n\n### Bird API + MCP\n\n1. Read RateLimit-Policy on each response to learn your quota, it isn't in the docs\n2. Send an Idempotency-Key on writes, and change it if the body changes or you'll get 409 E01005\n3. Treat `accepted` as received by Bird, then read the message back to confirm delivery\n4. Connect to mcp.bird.com/dynamic if your client struggles with large tool lists\n5. Log in with `--scope` or `--yolo` before sending, the default CLI login is read-only\n\n### Sinch Messaging APIs + MCP\n\n1. Load the MCP with `--tags` for the channels you need, or all 54 tools land in context\n2. Keep a single-tenant HTTP MCP bound to localhost, it does no inbound authentication\n3. Expect sends to drain at 20 messages a second per app unless Sinch raises it\n4. Verify `x-sinch-webhook-signature` against the raw body before parsing the JSON\n5. Use the regional base URL (us, eu or br) that matches the project\n\n## Other comparisons with Bird API + MCP or Sinch Messaging APIs + MCP\n\n- [Bandwidth Messaging API + MCP vs Bird API + MCP](https://www.anchorterminal.com/compare/bandwidth-vs-bird.md)\n- [Bandwidth Messaging API + MCP vs Sinch Messaging APIs + MCP](https://www.anchorterminal.com/compare/bandwidth-vs-sinch.md)\n- [Bird API + MCP vs ClickSend SMS API + MCP](https://www.anchorterminal.com/compare/bird-vs-clicksend.md)\n- [Bird API + MCP vs Infobip API + MCP](https://www.anchorterminal.com/compare/bird-vs-infobip.md)\n- [Bird API + MCP vs Plivo API](https://www.anchorterminal.com/compare/bird-vs-plivo.md)\n- [Bird API + MCP vs Telnyx API + MCP](https://www.anchorterminal.com/compare/bird-vs-telnyx.md)\n- [Bird API + MCP vs Twilio API + MCP](https://www.anchorterminal.com/compare/bird-vs-twilio.md)\n- [Bird API + MCP vs Vonage Messages API + MCP](https://www.anchorterminal.com/compare/bird-vs-vonage.md)\n- [ClickSend SMS API + MCP vs Sinch Messaging APIs + MCP](https://www.anchorterminal.com/compare/clicksend-vs-sinch.md)\n- [Infobip API + MCP vs Sinch Messaging APIs + MCP](https://www.anchorterminal.com/compare/infobip-vs-sinch.md)\n- [Plivo API vs Sinch Messaging APIs + MCP](https://www.anchorterminal.com/compare/plivo-vs-sinch.md)\n- [Sinch Messaging APIs + MCP vs Telnyx API + MCP](https://www.anchorterminal.com/compare/sinch-vs-telnyx.md)\n- [Sinch Messaging APIs + MCP vs Twilio API + MCP](https://www.anchorterminal.com/compare/sinch-vs-twilio.md)\n- [Sinch Messaging APIs + MCP vs Vonage Messages API + MCP](https://www.anchorterminal.com/compare/sinch-vs-vonage.md)\n- [360dialog WhatsApp API + MCP vs Bird API + MCP](https://www.anchorterminal.com/compare/360dialog-vs-bird.md)\n- [360dialog WhatsApp API + MCP vs Sinch Messaging APIs + MCP](https://www.anchorterminal.com/compare/360dialog-vs-sinch.md)\n",
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    "description": "Bird API + MCP has a score of 77.7 (BB) against Sinch Messaging APIs + MCP's 63.3 (B). Both do messaging sms. The largest gap is agent ergonomics, 40 points. Category scores, facts, verdicts and agent notes side by side.",
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