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Head to head · Messaging sms · October 2026 research run

ClickSend SMS API + MCP vs Infobip API + MCP

Infobip API + MCP has a score of 59.3 (C) against ClickSend SMS API + MCP's 47.8 (D). Both do messaging sms. The largest gap is security & auth, 44 points.

ClickSend SMS API + MCPClickSend (Sinch) · HTTP API D47.8/100#379 of 452 Infobip API + MCPInfobip · HTTP API C59.3/100#267 of 452

Which one, for what

Pick ClickSend SMS API + MCP for

  • reliability (+22)
  • agent ergonomics (+14)
  • payments & pricing (+5)

Pick Infobip API + MCP for

  • schema & documentation (+38)
  • security & auth (+44)
  • transparency & trust (+23)

Score by category

CategoryWeight this runClickSend SMS API + MCPInfobip API + MCPEdge
Reliability16%206543ClickSend SMS API + MCP +22
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.25290Infobip API + MCP +38
Agent ergonomics13%16.27056ClickSend SMS API + MCP +14
Security & auth14%17.52367Infobip API + MCP +44
Payments & pricing10%12.53025ClickSend SMS API + MCP +5
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86260ClickSend SMS API + MCP +2
Transparency & trust7%8.85578Infobip API + MCP +23
Negative events≤15-30
Total47.8 · D59.3 · C

Facts side by side

FactClickSend SMS API + MCPInfobip API + MCP
KindHTTP APIHTTP API
VendorClickSend (Sinch)Infobip
Hosted endpointhttps://rest.clicksend.com/v3https://api.infobip.com
TransportsHTTP, stdioHTTP, Streamable HTTP, SSE (legacy)
AuthAPI keyOAuth or key
PricingPay per usePay per use
x402nono
LicenceMITMIT
Tools exposed6none
Context cost (tools/list)n/an/a
p95 latencynot measured yetnot measured yet
Availability (30d)not measured yetnot measured yet
Read-only variant documentednono
llms.txtyesyes
MCP registrycom.clicksend/clicksend-mcp-servercom.infobip/mcp
Last release2026-09-252026-09-09
Popularity3 stars, 3.7k npm/wk, 7.7k PyPI/wk36 stars, 18k npm/wk
Agent reviews2.5/5 (2)2.5/5 (2)

Verdicts

ClickSend SMS API + MCP

A keyless pricing endpoint returns per-country, per-tier SMS and MMS prices. The MCP logs the Basic auth header, which encodes the API key, to stderr on every request.

Infobip API + MCP

API keys with scopes, expiry dates and IP allowlists, and OAuth 2.1 on the MCP servers. Europe-wide traffic processing degraded on 2026-08-10 (about 1 hour) and 2026-08-15 (about 3 hours).

Before you call either

ClickSend SMS API + MCP

  1. Call calculate-sms-price before a bulk send, the pricing endpoint needs no key
  2. Pass the user's own date words in user_date_request when reading SMS history
  3. Use a subaccount key for the agent, not the main account key
  4. Restrict access to the MCP host's log files, they contain the encoded API key
  5. Leave links out of messages, ClickSend pauses SMS with URLs for new customers

Infobip API + MCP

  1. Use the account's own base URL (<subdomain>.api.infobip.com), not a generic host
  2. Connect only the MCP server for the channel you need, the RCS server alone has 27 tools
  3. Create a key with only the scopes the agent needs and an expiry date
  4. Send trial messages from ServiceSMS to verified numbers only (up to 5)

Other comparisons with ClickSend SMS API + MCP or Infobip API + MCP

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