MID-MARKET SAAS · RAN IN GOOGLE SHEETS
GTM AGENCY · RAN IN CLAUDE MCP + BYOK
Meridian GTM drafted 48,000 verified cold email first lines via Claude MCP at 0% markup.
How a six-client outbound agency replaced per-row AI credit markups by connecting Claude Desktop to Sorzio MCP with an encrypted Anthropic BYOK key, lifting positive reply rates 3.4x.
Claude MCPROWS
48,000
SPEED
11 hrs/wk saved
COST
0% markup
What changed after the first run.
3.4xHigher positive reply rate across 6 retainersPositive replies rose from 1.1% on mail-merge templates to 3.7%
0%Sorzio markup on all 48,000 AI callsEncrypted BYOK key on Scale ($99/mo) with $0 per-row base fee
11 hrsSaved every week on CSV wrangling and QAAccount strategists test 10 rows in Claude before approving batches
BEFORE SORZIO
Where time and budget leaked.
Meridian manages outbound sequences for six B2B retainers, shipping roughly 48,000 net-new prospect lines a month. Bundled credit platforms charged a steep inference margin on every row and still produced hallucinated product claims when websites were thin.
Strategists spent 11 hours every week exporting CSVs between scrapers, chat windows, and sequencer sheets to spot-check tone before launch.
THE SORZIO WORKFLOW
One pipeline, succeeded rows only.
Connecting Claude to https://www.sorzio.com/api/mcp let each strategist upload a Hosted List, preview 10 rows in chat, tighten the prompt once, and run the full list with self-healing output verification enabled.
With Meridian's own API key stored in AES-256-GCM encrypted BYOK settings on Scale ($99/month, 3 seats included), Sorzio billed $0.00 on all 48,000 generative calls.
EXACT FLOW & COST MATH
Step-by-step run receipt.
01
Hosted List upload + 10-row MCP preview
create_list + preview_prompt inside Claude via OAuth 2.1 MCP
Strategists inspected column headers and 10 live rows in chat before approving full execution.
VOLUME
6 client lists totaling 48,000 rows
RATE
$0.00 platform fee
LINE TOTAL
$0.00
02
6-page Website Enrich
run_scrape Auto bundle (homepage + 5 high-signal subpages)
Grounded every row in real case studies, pricing tiers, and open roles before writing a single word.
VOLUME
48,000 domains (44,500 succeeded, 3,500 unreachable skipped at $0)
RATE
$0.006 / URL
LINE TOTAL
$267.00
03
Self-healing First Lines on Encrypted BYOK
run_ai with self-healing verification on agency API key
Provider tokens billed directly to Meridian's provider account at list rate; unsupported claims revised automatically.
VOLUME
44,500 grounded cold email openers
RATE
0% markup · $0 base fee
LINE TOTAL
$0.00 Sorzio AI fee
“We test 10 rows in Claude, read the exact sentences, and approve 8,000 rows without touching a CSV. Zero markup on our own API key saved more in week one than our Scale seat costs all year.”
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CLOUD INFRA · RAN IN GOOGLE SHEETS
Velox Cloud scored 548 target accounts with Decision Mode, kept 412, and booked 2.8x more meetings.
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ENTERPRISE OPS · RAN IN HOSTED LISTS
Harbor Ops published 1,850 1-to-1 prospect microsites for $0 upfront and booked 47 demos.
Read the storyStart with $20 of free credit.
- Cost shown before every step
- Pay only for rows that succeed
- Google Sheets, Claude and ChatGPT