callagent.pro provides human-like AI phone agents that answer and place real phone calls. Its REST Agent API (Bearer keys prefixed cak_live_, base https://www.callagent.pro) covers building agents, assigning numbers and SIP trunks, test chats and test calls, call transcripts, recordings and summaries, contacts, do-not-call lists, and billing, including x402 USDC top-ups on Base. Submitted through apis.io/add.
callagent.pro is listed with 1 API on the APIs.io network: Agent API. Tagged areas include AI Agents, Voice, Telephony, Phone Agents, and SIP.
callagent.pro’s developer surface includes engineering blog and 3 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Horizontal (data, software, accessibility, platform) regime, so
Regulatory Posture carries 15 points of the composite.
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applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
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REST API for everything the callagent.pro dashboard does: agents, test-chat and test-call, numbers, SIP accounts and trunks, calls and live calls, knowledge, contacts, do-not-ca...
name: callagent.pro
aid: callagentpro
description: callagent.pro provides human-like AI phone agents that answer and place real phone calls. Its REST Agent API
(Bearer keys prefixed cak_live_, base https://www.callagent.pro) covers building agents, assigning numbers and SIP trunks,
test chats and test calls, call transcripts, recordings and summaries, contacts, do-not-call lists, and billing, including
x402 USDC top-ups on Base. Submitted through apis.io/add.
url: https://raw.githubusercontent.com/api-evangelist/callagentpro/refs/heads/main/apis.yml
x-type: company
x-source: apis-io-submission
x-submitted-by: info@callagent.pro, apis.io/add 2026-09-22 (docs https://callagent.pro/docs)
x-tier: stub
x-tier-reason: apis.io/add submission worked by the support sweep 2026-09-23; host probed healthy (root 200, invented path
404, llms.txt 200)
specificationVersion: '0.23'
created: '2026-09-23'
modified: '2026-09-23'
tags:
- AI Agents
- Voice
- Telephony
- Phone Agents
- SIP
- x402
- Call Automation
apis:
- aid: callagentpro:agent-api
name: callagent.pro Agent API
description: 'REST API for everything the callagent.pro dashboard does: agents, test-chat and test-call, numbers, SIP accounts
and trunks, calls and live calls, knowledge, contacts, do-not-call, and billing including x402 top-ups. Documented in
the provider llms.txt, which names an OpenAPI 3.1 spec as authoritative.'
humanURL: https://www.callagent.pro/docs/agent-api.md
tags:
- AI Agents
- Voice
- Telephony
properties:
- type: OpenAPI
name: OpenAPI (provider-hosted)
url: https://www.callagent.pro/openapi/agent-api.yaml
- type: Documentation
url: https://www.callagent.pro/docs/agent-api.md
common:
- type: Website
url: https://www.callagent.pro/
- type: Blog
url: https://www.callagent.pro/blog
- type: TermsOfService
url: https://www.callagent.pro/terms
- type: PrivacyPolicy
url: https://www.callagent.pro/policy
x-enrichment-note: '2026-09-23 local-v5 pass BLOCKED: after ~25 probes the host 85.215.231.137 began refusing TCP 443 from
our IP (connection refused for 40+ minutes). llms.txt was fetched (200) and saved verbatim; the OpenAPI 3.1 spec it names
at /openapi/agent-api.yaml was never fetched. Re-run slowly (one request every few seconds); pointers above come from the
llms.txt and sitemap.xml and are unverified.'
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